25LC320A-I/ST Microchip Technology, 25LC320A-I/ST Datasheet
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25LC320A-I/ST
Specifications of 25LC320A-I/ST
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25LC320A-I/ST Summary of contents
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... Hold Input V Supply Voltage CC *25LCXXX is used in this document as a generic part number for the 25 series devices. © 2009 Microchip Technology Inc. 25LC080C 25LC320A 25LC080D 25LC640A 25LC160C 25LC160D Description: Microchip Technology Inc. 25LCXXX* devices are Mid- density 8 through 256 Kbit Serial Electrically Erasable PROMs (EEPROM) ...
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... Density Part Number Organization (bits) 25LC080C 8K 1,024 x 8 25LC080D 8K 1,024 x 8 25LC160C 16K 2,048 x 8 25LC160D 16K 2,048 x 8 25LC320A 32K 4,096 x 8 25LC640A 64K 8,192 x 8 25LC128 128K 16,384 x 8 25LC256 256K 32,768 x 8 DS22131C-page 2 Max Speed Page Size V Range ...
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... Microchip Technology Inc. † NOTICE: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device ...
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... Vcc < 4.5V(Note 1) 160 — ns 4.5V ≤ Vcc ≤ 5.5V 60 — ns 2.5V ≤ Vcc < 4.5V 160 — ns — (Note 2) 1,000,000 — E/W Page Mode, 25°C, V Cycles Preliminary V = 2.5V to 5.5V CC Test Conditions = 5.5V (Note 3) CC © 2009 Microchip Technology Inc. ...
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... TABLE 1-3: AC TEST CONDITIONS AC Waveform 0. – Timing Measurement Reference Level Input Output ≤ 4.0V Note 1: For For V > 4.0V CC © 2009 Microchip Technology Inc. — (Note 1) (Note 2) — Preliminary 25LCXXX DS22131C-page 5 ...
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... SERIAL INPUT TIMING CS 2 Mode 1,1 Mode 0,0 SCK MSB in High-Impedance SO FIGURE 1-3: SERIAL OUTPUT TIMING SCK 13 MSB out SO SI DS22131C-page High-Impedance n Don’t Care LSB in 14 Don’t Care Preliminary Mode 1,1 Mode 0,0 15 ISB out © 2009 Microchip Technology Inc. ...
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... STATUS register internal write cycle has already begun, WP going low will have no effect on the write. © 2009 Microchip Technology Inc. The WP pin function is blocked when the WPEN bit in the STATUS register is low. This allows the user to install the 25LCXXX in a system with WP pin grounded and still be able to write to the STATUS register ...
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... Reset the write enable latch (disable write operations) Set the write enable latch (enable write operations) Read STATUS register Write STATUS register Preliminary HV Generator EEPROM Memory X Array Control Logic Dec Page Latches Y Decoder Sense Amp. R/W Control CC SS © 2009 Microchip Technology Inc. ...
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... SI High-Impedance SO © 2009 Microchip Technology Inc. Once the write enable latch is set, the user may proceed by setting the CS low, issuing a WRITE instruc- tion, followed by the 16-bit address, and then the data to be written. Depending upon the density, a page of data that ranges from 16 bytes to 64 bytes can be sent to the device before a write cycle is necessary ...
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... FIGURE 3-2: BYTE WRITE SEQUENCE SCK Instruction High-Impedance SO FIGURE 3-3: PAGE WRITE SEQUENCE SCK Instruction SCK Data Byte DS22131C-page 16-bit Address 16-bit Address Data Byte Preliminary Twc Data Byte Data Byte Data Byte n (16/32/64 max © 2009 Microchip Technology Inc. ...
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... SO FIGURE 3-5: WRITE DISABLE SEQUENCE (WRDI) CS SCK SI SO © 2009 Microchip Technology Inc. The following is a list of conditions under which the write enable latch will be reset: • Power-up See • WRDI instruction successfully executed • WRSR instruction successfully executed • WRITE instruction successfully executed ...
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... WRSR instruction. These R R bits are nonvolatile, and are shown in Table 3-3. WEL WIP See Figure 3-6 for the RDSR timing sequence. ’, no write Data from STATUS Register Preliminary © 2009 Microchip Technology Inc. ...
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... SI SO Note: An internal write cycle (T sequence. © 2009 Microchip Technology Inc. The Write-Protect Enable (WPEN) bit is a nonvolatile bit that is available as an enable bit for the WP pin. The Write-Protect (WP) pin and the Write-Protect Enable (WPEN) bit in the STATUS register control the programmable hardware write-protect feature ...
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... The device is in low-power Standby mode ( • The write enable latch is reset • high-impedance state • A high-to-low-level transition required to enter active state Protected Blocks Unprotected Blocks Protected x Protected x Protected Protected Preliminary STATUS Register Protected Protected Writable Writable Writable Protected Writable Writable © 2009 Microchip Technology Inc. ...
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... PACKAGING INFORMATION 6.1 Package Marking Information 8-Lead SOIC XXXXXXXT XXXXYYWW 25LC080C 25LC080D 25LC160C 25LC160D 25LC320A 25LC640A 25LC128 25LC256 Note Temperature Grade (H). Legend: XX...X Customer-specific information Y Year code (last digit of calendar year) YY Year code (last 2 digits of calendar year) WW Week code (week of January 1 is week ‘01’) ...
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... DS22131C-page 16 PP %RG\ >62,&@ α φ β Preliminary © 2009 Microchip Technology Inc. ...
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... Microchip Technology Inc. PP %RG\ >62,&@ Preliminary 25LCXXX DS22131C-page 17 ...
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... REVISION HISTORY Revision A (01/2009) Original Release. Revision B (04/2009) Revised part number from 25XX to 25LCXXX; Added Note 1 to Electrical Characteristics. Revision C (06/2009) Revised Features: Endurance and Package; Revised Table 1-2, Para. 21. DS22131C-page 18 Preliminary © 2009 Microchip Technology Inc. ...
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... To register, access the Microchip web site at www.microchip.com, click on Customer Change Notifi- cation and follow the registration instructions. © 2009 Microchip Technology Inc. CUSTOMER SUPPORT Users of Microchip products can receive assistance through several channels: • Distributor or Representative • ...
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... What deletions from the document could be made without affecting the overall usefulness there any incorrect or misleading information (what and where)? 7. How would you improve this document? DS22131C-page 20 Total Pages Sent ________ FAX: (______) _________ - _________ N Literature Number: DS22131C Preliminary © 2009 Microchip Technology Inc. ...
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... Serial EEPROM, Extended temp., Tape & Reel, SOIC package 25LC160D-H/SN = 16k-bit, 32-byte page, 2.5V Serial EEPROM, Extended temp., SOIC pack- age 25LC320AT-H/SN = 32k-bit, 32-byte page, 2.5V Serial EEPROM, Extended temp., Tape & Reel, SOIC package 25LC640A-H/SN = 64k-bit, 32-byte page, 2.5V Serial EEPROM, Extended temp., SOIC pack- ...
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... NOTES: DS22131C-page 22 Preliminary © 2009 Microchip Technology Inc. ...
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... PICDEM, PICDEM.net, PICtail, PIC Select Mode, Total Endurance, TSHARC, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...
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... Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 Preliminary © 2009 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...