m24c32-df STMicroelectronics, m24c32-df Datasheet
m24c32-df
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m24c32-df Summary of contents
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... Fast mode – 100 kHz Standard mode ■ Memory array: – Kbytes) of EEPROM – Page size: 32 bytes ■ M24C32-DF: additional Write lockable Page (Identification page) ■ Write – Byte Write within 5 ms – Page Write within 5 ms ■ ...
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... Lock Identification Page (M24C32-D only 4.11 ECC (Error Correction Code) and Write cycling . . . . . . . . . . . . . . . . . . . . 18 4.12 Minimizing system delays by polling on ACK . . . . . . . . . . . . . . . . . . . . . . 19 4.13 Read operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4.14 Random Address Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4.15 Current Address Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 2/42 M24C32-DF, M24C32-W, M24C32-R, M24C32 Operating supply voltage Power-up conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Device reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Power-down conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Doc ID 4578 Rev 18 ...
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... M24C32-DF, M24C32-W, M24C32-R, M24C32-F 4.16 Sequential Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4.17 Read Identification Page (M24C32- 4.18 Read the lock status (M24C32- 4.19 Acknowledge in Read mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 5 Initial delivery state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 6 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 8 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 9 Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Doc ID 4578 Rev 18 ...
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... Table 20. TSSOP8 – 8 lead thin shrink small outline, package mechanical data Table 21. UFDFPN8 (MLP8) 8-lead ultra thin fine pitch dual flat package no lead mm, data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Table 22. Ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Table 23. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 4/42 M24C32-DF, M24C32-W, M24C32-R, M24C32-F Doc ID 4578 Rev 18 ...
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... M24C32-DF, M24C32-W, M24C32-R, M24C32-F List of figures Figure 1. Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 2. 8-pin package connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 3. Device select code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2 Figure Fast mode (f C capacitance (C bus 2 Figure Fast mode Plus (f parasitic capacitance (C 2 Figure bus protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Figure 7. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 8. ...
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... Description 1 Description M24C32-x and M24C32-DF devices are I2C-compatible electrically erasable programmable memories (EEPROM). They are organized as 8192 × 8 bits. The M24C32-D also offers an additional page, named the Identification Page (32 bytes) which can be written and (later) permanently locked in Read-only mode. This Identification Page offers flexibility in the application board production line can be used to store unique identification parameters and/or parameters specific to the production line ...
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... M24C32-DF, M24C32-W, M24C32-R, M24C32-F Table 1. Signal names Signal name E0, E1, E2 SDA SCL Figure 2. 8-pin package connections 1. See Package mechanical data Function Chip Enable Serial Data Serial Clock Write Control Supply voltage Ground section for package dimensions, and how to identify pin-1. ...
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... Control (WC) is driven high. When unconnected, the signal is internally read as V Write operations are allowed. When Write Control (WC) is driven high, device select and Address bytes are acknowledged, Data bytes are not acknowledged. 8/42 M24C32-DF, M24C32-W, M24C32-R, M24C32-F indicates how the value of the pull-up resistor can be calculated M24xxx ...
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... M24C32-DF, M24C32-W, M24C32-R, M24C32-F 2.5 V ground the reference for the V SS 2.6 Supply voltage (V 2.6.1 Operating supply voltage V Prior to selecting the memory and issuing instructions to it, a valid and stable V within the specified [V Table 9). In order to secure a stable DC supply voltage recommended to decouple the ...
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... Figure Fast mode Plus (f parasitic capacitance (C 100 Bus line capacitor (pF) 10/42 M24C32-DF, M24C32-W, M24C32-R, M24C32-F = 400 kHz): maximum bus When time constant must be below the 400 ns time constant line represented on the left 100 1000 Bus line capacitor (pF) ...
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... M24C32-DF, M24C32-W, M24C32-R, M24C32-F 2 Figure bus protocol SCL SDA SCL SDA Start Condition SCL SDA Table 2. Address most significant byte b15 b14 Table 3. Address least significant byte b7 b6 SDA SDA Start Input Change Condition MSB MSB b13 b12 ...
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... Memory organization 3 Memory organization The memory is organized as shown in Figure 7. Block diagram SCL SDA 12/42 M24C32-DF, M24C32-W, M24C32-R, M24C32-F Figure 7. Control Logic I/O Shift Register Address Register and Counter Doc ID 4578 Rev 18 High Voltage Generator Data Register 1 Page X Decoder AI06899 ...
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... M24C32-DF, M24C32-W, M24C32-R, M24C32-F 4 Device operation The device supports the I data on to the bus is defined transmitter, and any device that reads the data receiver. The device that controls the data transfer is known as the bus master, and the other as the slave device. A data transfer can only be initiated by the bus master, which will also provide the serial clock for synchronization ...
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... Standby mode. Table 5. Operating modes Mode Current Address Read Random Address Read Sequential Read Byte Write Page Write 14/42 M24C32-DF, M24C32-W, M24C32-R, M24C32-F Device type identifier (1) RW bit WC Bytes ...
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... M24C32-DF, M24C32-W, M24C32-R, M24C32-F Figure 8. Write mode sequences with (data write inhibited) WC Byte Write WC Page Write WC (cont'd) Page Write (cont'd) ACK ACK Dev select Byte address Byte address R/W ACK ACK Dev select Byte address Byte address R/W NO ACK NO ACK Data in N Doc ID 4578 Rev 18 ...
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... NoAck. After each byte is transferred, the internal byte address counter (inside the page) is incremented. The transfer is terminated by the bus master generating a Stop condition. 16/42 M24C32-DF, M24C32-W, M24C32-R, M24C32-F , and the successful completion of a Write operation, W Figure 9 ...
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... M24C32-DF, M24C32-W, M24C32-R, M24C32-F Figure 9. Write mode sequences with (data write enabled) WC Byte Write WC Page Write WC (cont'd) Page Write (cont'd) 4.9 Write Identification Page (M24C32-D only) The Identification Page (32 bytes additional page which can be written and (later) permanently locked in Read-only mode. The Identification Page is written by issuing an Write Identification Page instruction ...
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... It is therefore recommended to write by word (4 bytes) at address 4*N (where integer) in order to benefit from the larger amount of Write cycles. The M24C32 devices are qualified as 1 million (1,000,000) Write cycles, using a cycling routine that writes to the device by multiples of 4-byte words. 18/42 M24C32-DF, M24C32-W, M24C32-R, M24C32-F Doc ID 4578 Rev 18 ...
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... M24C32-DF, M24C32-W, M24C32-R, M24C32-F Figure 10. Write cycle polling flowchart using ACK First byte of instruction with already decoded by the device 4.12 Minimizing system delays by polling on ACK During the internal Write cycle, the device disconnects itself from the bus, and writes a copy of the data from its internal latches to the memory cells. The maximum Write time (t ...
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... Address Read Sequential Current Read Sequential Random Read 1. The seven most significant bits of the device select code of a Random Read (in the 1 be identical. 20/42 M24C32-DF, M24C32-W, M24C32-R, M24C32-F ACK NO ACK Dev select Data out R/W ACK ACK Dev select * Byte address Byte address ...
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... M24C32-DF, M24C32-W, M24C32-R, M24C32-F 4.13 Read operations Read operations are performed independently of the state of the Write Control (WC) signal. After the successful completion of a Read operation, the device’s internal address counter is incremented by one, to point to the next byte address. 4.14 Random Address Read A dummy Write is first performed to load the address into this address counter (as shown in Figure 11) but without sending a Stop condition ...
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... For all Read commands, the device waits, after each byte read, for an acknowledgment th during the 9 bit time. If the bus master does not drive Serial Data (SDA) low during this time, the device terminates the data transfer and switches to its Standby mode. 22/42 M24C32-DF, M24C32-W, M24C32-R, M24C32-F Doc ID 4578 Rev 18 ...
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... M24C32-DF, M24C32-W, M24C32-R, M24C32-F 5 Initial delivery state The device is delivered with all bits in the memory array set to 1 (each byte contains FFh). 6 Maximum rating Stressing the device outside the ratings listed in the device. These are stress ratings only, and operation of the device at these, or any other conditions outside those indicated in the Operating sections of this specification, is not implied ...
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... Ambient operating temperature (device grade 5) Table 10. AC test measurement conditions Symbol C Load capacitance bus SCL input rise/fall time, SDA input fall time Input levels Input and output timing reference levels 24/42 M24C32-DF, M24C32-W, M24C32-R, M24C32-F Parameter Parameter Parameter Parameter Doc ID 4578 Rev 18 Min. Max. Unit 2.5 5.5 V – ...
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... M24C32-DF, M24C32-W, M24C32-R, M24C32-F Figure 12. AC test measurement I/O waveform Input Levels 0.8V CC 0.2V CC Table 11. Input parameters Symbol C Input capacitance (SDA Input capacitance (other pins) IN Input impedance ( (E2, E1, E0, WC) Input impedance ( (E2, E1, E0, WC) 1. Characterized value, not tested in production. 2. E2,E1,E0: Input impedance when the memory is selected (after a Start condition). ...
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... Characterized value, not tested in production. 3. The device is not selected after power-up, after a Read instruction (after the Stop condition), or after the completion of the internal write cycle t 4. The new M24C32-W devices (identified by the process letter K) offer I 26/42 M24C32-DF, M24C32-W, M24C32-R, M24C32-F Test conditions (see Table 7 Table 10) ...
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... M24C32-DF, M24C32-W, M24C32-R, M24C32-F Table 13. DC characteristics (M24xxx-W - device grade 3) Symbol Parameter Input leakage current I (SCL, SDA, E0, E1, LI E2) Output leakage I LO current I Supply current (Read Supply current (Write) During t CC0 Standby supply I CC1 current Input low voltage V IL (SCL, SDA, WC) ...
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... Table 12 2. Only for devices operating Characterized value, not tested in production. 4. The device is not selected after power-up, after a Read instruction (after the Stop condition), or after the completion of the internal write cycle t 28/42 M24C32-DF, M24C32-W, M24C32-R, M24C32-F (1) Test conditions to those in Table 8 Table ...
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... M24C32-DF, M24C32-W, M24C32-R, M24C32-F Table 15. DC characteristics (M24xxx-F) Symbol Parameter Input leakage current I LI (E1, E2, SCL, SDA) I Output leakage current LO I Supply current (Read Supply current (Write) CC0 I Standby supply current CC1 Input low voltage V IL (SCL, SDA, WC) Input high voltage ...
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... CLQV 0.7V , assuming that The current M24C32 device offers t letter K) offers t NS recommended by the I 30/42 M24C32-DF, M24C32-W, M24C32-R, M24C32-F (1) Parameter Clock frequency Clock pulse width high Clock pulse width low SDA (out) fall time Input signal rise time Input signal fall time ...
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... M24C32-DF, M24C32-W, M24C32-R, M24C32-F Table 17. 1 MHz AC characteristics Symbol Alt SCL t t CHCL HIGH t t CLCH LOW t t XH1XH2 XL1XL2 F ( QL1QL2 DXCX SU:DAT t t CLDX HD:DAT t t CLQX DH (5)( CLQV CHDL SU:STA t t DLCL HD:STA ...
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... DC and AC parameters Figure 13. AC waveforms 32/42 M24C32-DF, M24C32-W, M24C32-R, M24C32-F Doc ID 4578 Rev 18 ...
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... M24C32-DF, M24C32-W, M24C32-R, M24C32-F 8 Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ® ECOPACK trademark. Figure 14. PDIP8 – 8 pin plastic DIP, 0.25 mm lead frame, package outline 1 ...
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... SO8 narrow – 8 lead plastic small outline, 150 mils body width, package mechanical data Symbol ccc Values in inches are converted from mm and rounded to 4 decimal digits. 34/42 M24C32-DF, M24C32-W, M24C32-R, M24C32-F A ccc millimeters Typ Min Max 1.75 0.10 0.25 1.25 0.28 ...
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... M24C32-DF, M24C32-W, M24C32-R, M24C32-F Figure 16. TSSOP8 – 8 lead thin shrink small outline, package outline Drawing is not to scale. Table 20. TSSOP8 – 8 lead thin shrink small outline, package mechanical data Symbol α 1. Values in inches are converted from mm and rounded to 4 decimal digits. ...
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... (2) ddd 1. Values in inches are converted from mm and rounded to 4 decimal digits. 2. Applied for exposed die paddle and terminals. Exclude embedding part of exposed die paddle from measuring. 36/42 M24C32-DF, M24C32-W, M24C32-R, M24C32-F millimeters Typ Min Max 0.550 0.450 0.600 0.020 0 0.050 ...
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... M24C32-DF, M24C32-W, M24C32-R, M24C32-F 9 Part numbering Table 22. Ordering information scheme Example: Device type 2 M24 = I C serial access EEPROM Device function C32– Kbit (4096 x 8) Device family Blank: Without Identification page D: With additional Identification page Operating voltage 5.5 V ...
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... M24C32-DF, M24C32-W, M24C32-R, M24C32-F TSSOP8 package in place of TSSOP14 ( OrderingInfo, 2.3 PackageMechData). 2.4 TSSOP8 package data corrected References to Temperature Range 3 removed from Ordering Information 2.5 Voltage range -S added, and range -R removed from text and tables throughout. ...
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... M24C32-DF, M24C32-W, M24C32-R, M24C32-F Table 23. Document revision history (continued) Date Revision 29-Jun-2006 03-Jul-2006 17-Oct-2006 27-Apr-2007 27-Nov-2007 Document converted to new ST template. M24C32 and M24C64 products (4.5 to 5.5V supply voltage) removed. M24C64 and M24C32 products (1.7 to 5.5V supply voltage) added. Section 2.3: Chip Enable (E0, E1, E2) (WC) modified, Section 2.6: Supply voltage (VCC) ...
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... Table 23. Document revision history (continued) Date Revision 18-Dec-2007 30-May-2008 15-Jul-2008 16-Sep-2008 05-Jan-2009 40/42 M24C32-DF, M24C32-W, M24C32-R, M24C32-F Added Section 2.6.2: Power-up Device reset, and Section 2.6.4: Power-down conditions Supply voltage (VCC). Updated Figure 4: I2C Fast mode (fC = 400 kHz): maximum Rbus value versus bus parasitic capacitance ...
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... Note added below Figure 17: UFDFPN8 (MLP8) – 8-lead ultra thin fine pitch dual flat package no lead 2 × 3mm, package Small text changes. Added: – M24C32-DF and all information concerning the Identification Page: sections 4.9, 4.10, 4.17, – ECC section 4.11 – AC table with clock frequency of 1 MHz – ...
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... Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America 42/42 M24C32-DF, M24C32-W, M24C32-R, M24C32-F Please Read Carefully: © 2011 STMicroelectronics - All rights reserved STMicroelectronics group of companies www ...