s-93c46b Seiko Instruments Inc., s-93c46b Datasheet
s-93c46b
Available stocks
Related parts for s-93c46b
s-93c46b Summary of contents
Page 1
... Before using the product in medical equipment or automobile equipment including car audio, keyless entry and engine control unit, contact to SII is indispensable. The S-93C46B/56B/66B is a high speed, low current consumption, 1/2/4 K-bit serial E operating voltage range organized as 64-word × 16- bit, 128-word × ...
Page 2
... GND Figure 1 S-93C46BD0I-D8S1G S-93C56BD0I-D8S1G S-93C66BD0I-D8S1G 8-Pin SOP(JEDEC) Top view VCC TEST GND Figure 2 S-93C46BD0I-J8T1G S-93C46BD0H-J8T2G S-93C56BD0I-J8T1G S-93C56BD0H-J8T2G S-93C66BD0I-J8T1G S-93C66BD0H-J8T2G 2 Table 1 Pin No. Symbol GND *1 6 TEST VCC *1. Connect to GND Even if this pin is not connected, performance is not affected so long as the absolute maximum rating is not exceeded ...
Page 3
... Connect to GND or V Even if this pin is not connected, performance is not affected so long as the absolute maximum rating is not exceeded. Remark See Dimensions for details of the package drawings. Seiko Instruments Inc. CMOS SERIAL E S-93C46B/56B/66B Table 3 Description NC No connection VCC Power supply CS Chip select input ...
Page 4
... CMOS SERIAL E PROM S-93C46B/56B/66B SNT-8A Top view VCC TEST GND Figure 5 S-93C46BD0I-I8T1G S-93C56BD0I-I8T1G S-93C66BD0I-I8T1G 4 Pin No. Symbol GND *1 6 TEST VCC *1. Connect to GND Even if this pin is not connected, performance is not affected so long as the absolute maximum rating is not exceeded ...
Page 5
... Rev.4.3 _00 Block Diagram Address Memory array decoder Data register Mode decode logic Clock pulse Voltage detector monitoring circuit Clock generator Figure 6 Seiko Instruments Inc. 2 CMOS SERIAL E PROM S-93C46B/56B/66B VCC GND Output buffer DO 5 ...
Page 6
... CMOS SERIAL E PROM S-93C46B/56B/66B Instruction Sets 1. S-93C46B Instruction Start Bit SK input clock READ (Read data) WRITE (Write data) ERASE (Erase data) WRAL (Write all) ERAL (Erase all) EWEN (Write enable) EWDS (Write disable) *1. When the 16-bit data in the specified address has been output, the data in the next address is output. ...
Page 7
... Seiko Instruments Inc. CMOS SERIAL E S-93C46B/56B/66B Address D15 to D0 Output D15 to D0 Input D15 to D0 Input ...
Page 8
... CMOS SERIAL E PROM S-93C46B/56B/66B Absolute Maximum Ratings Item Power supply voltage Input voltage Output voltage Operating ambient temperature Storage temperature Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical damage. These values must therefore not be exceeded under any conditions ...
Page 9
... V − 0.3 − 0.2 V − 0.2 1.5 1.5 Seiko Instruments Inc. CMOS SERIAL E S-93C46B/56B/66B +85 to +105°C = 1 4 0.5 0.4 +85 to +105°C = 2 4 Min. ...
Page 10
... CMOS SERIAL E PROM S-93C46B/56B/66B AC Electrical Characteristics Input pulse voltage Output reference voltage Output load Item Symbol CS setup time t CSS CS hold time t CSH CS deselect time t CDS Data setup time t DS Data hold time t DH Output delay time Clock frequency clock time “L” ...
Page 11
... SK clock cycle time is minimized, the clock cycle (1/f ) cannot be made equal 1 SKH SKL Valid data Valid data HZ2 (Min (Min.). SKL SKH Figure 7 Timing Chart Seiko Instruments Inc. CMOS SERIAL E S-93C46B/56B/66B t CDS t CSH HZ1 2 PROM Hi-Z Hi-Z 11 ...
Page 12
... An instruction set is input in the order of start bit, instruction, address, and data. Instruction input finishes when CS goes low. A low level must be input to CS between commands during t . While a low level is being input to CS, the S-93C46B/56B/66B is in standby mode, so the SK and DI CDS inputs are invalid and no instructions are allowed. ...
Page 13
... Figure 8 Read Timing (S-93C46B Figure 9 Read Timing (S-93C56B, S-93C66B) Seiko Instruments Inc ...
Page 14
... Caution 1. Input a low level to the DI pin during a verify operation high level is input to the DI pin at the rise of SK when the output status of the DO pin is high, the S-93C46B/56B/66B latches the instruction assuming that a start bit has been input. In this case, note that the DO pin immediately enters a high-impedance (Hi-Z) state ...
Page 15
... <1> Hi-Z Figure 10 Data Write Timing (S-93C46B Hi S-93C56B A7: S-93C66B Figure 11 Data Write Timing (S-93C56B, S-93C66B) Seiko Instruments Inc. CMOS SERIAL E S-93C46B/56B/66B Function to Protect Against Write due to ...
Page 16
... <1> Hi-Z Figure 12 Data Erase Timing (S-93C46B Hi S-93C56B A7: S-93C66B Figure 13 Data Erase Timing (S-93C56B, S-93C66B) Seiko Instruments Inc. Function to Protect Against Write due to t CDS Verify ...
Page 17
... DI 0 <1> <1> 4Xs Hi-Z Figure 14 Chip Write Timing (S-93C46B 6Xs Hi-Z Figure 15 Chip Write Timing (S-93C56B, S-93C66B) Seiko Instruments Inc. CMOS SERIAL E S-93C46B/56B/66B t CDS Verify 10 25 D15 usy ...
Page 18
... Against Write due to Erroneous Instruction Recognition ” <1> <1> Figure 16 Chip Erase Timing (S-93C46B 6Xs Figure 17 Chip Erase Timing (S-93C56B, S-93C66B) Seiko Instruments Inc. Function to Protect Verify t CDS 8 9 4Xs usy t PR Verify ...
Page 19
... EWEN 00 = EWDS Figure 18 Write Enable/Disable Timing (S-93C46B 6Xs 11 = EWEN 00 = EWDS Seiko Instruments Inc. CMOS SERIAL E ...
Page 20
... S-93C46B/56B/66B Write Disable Function when Power Supply Voltage is Low The S-93C46B/56B/66B provides a built-in detector to detect a low power supply voltage and disable writing. When the power supply voltage is low or at power application, the write instructions (WRITE, ERASE, WRAL, and ERAL) are cancelled, and the write disable state (EWDS) is automatically set. The detection voltage is 1 ...
Page 21
... Function to Protect Against Write due to Erroneous Instruction Recognition The S-93C46B/56B/66B provides a built-in clock pulse monitoring circuit which is used to prevent an erroneous write operation by canceling write instructions (WRITE, ERASE, WRAL, and ERAL) recognized erroneously due to an erroneous clock count caused by the application of noise pulses or double counting of clocks ...
Page 22
... To prevent such a malfunction, connect the DI and DO pins of the S-93C46B/56B/66B via a resistor (10 to 100 kΩ) so that the data output from the CPU takes precedence in being input to the DI pin (refer to “ Figure 22 Connection of 3-Wire Interface ”). ...
Page 23
... Rev.4.3 _00 2. 1 Input pin CS SK, DI TEST Figure 23 CS Pin Figure 24 SK, DI Pin Figure 25 TEST Pin Seiko Instruments Inc. 2 CMOS SERIAL E PROM S-93C46B/56B/66B 23 ...
Page 24
... S-93C46B/56B/66B 2. 2 Output pin 3. Input pin noise elimination time The S-93C46B/56B/66B include a built-in low-pass filter to eliminate noise at the SK, DI, and CS pins. This means that if the supply voltage is 5.0 V (at room temperature), noise with a pulse width less can be eliminated. Note, therefore, the noise with a pulse width of more than 20 ns will be recognized as a pulse if the ...
Page 25
... Current consumption (READ) I CC1 Current consumption (READ) I CC1 Current consumption (READ) I CC1 (V) Seiko Instruments Inc. CMOS SERIAL E S-93C46B/56B/66B vs. ambient temperature 500 kHz f SK DATA = 0101 0.4 I CC1 (mA) 0.2 0 − (°C) vs. power supply voltage 25° ...
Page 26
... CMOS SERIAL E PROM S-93C46B/56B/66B 1. 7 Current consumption (WRITE) I vs. ambient temperature 5 1.0 I CC2 (mA) 0.5 0 − (° Current consumption (WRITE) I vs. ambient temperature 1.0 I CC2 (mA) 0.5 0 − (° Current consumption in standby mode I vs. ambient temperature ...
Page 27
... OH 4.6 V 4.4 OH (V) 4.2 − (° Input leakage current Output leakage current High-level output voltage Seiko Instruments Inc. CMOS SERIAL E S-93C46B/56B/66B LI vs. ambient temperature CS, SK, DI, TEST = 5 (µA) 0.5 0 − (°C) LO vs. ambient temperature ...
Page 28
... CMOS SERIAL E PROM S-93C46B/56B/66B 1. 19 High-level output voltage V vs. ambient temperature −100 µA OH 2.5 V 2.4 OH (V) 2.3 − (° Low-level output voltage V vs. ambient temperature 0.3 V 0.2 OL (V) 0.1 − (° High-level output current I vs. ambient temperature ...
Page 29
... V ( High-level output current Low-level output current Input inverted voltage V INV Seiko Instruments Inc. CMOS SERIAL E S-93C46B/56B/66B OH vs. ambient temperature −1 (mA) −0.5 0 − (°C) OL vs. ambient temperature ...
Page 30
... CMOS SERIAL E PROM S-93C46B/56B/66B 1. 31 Low supply voltage detection voltage −V vs. ambient temperature Ta 2.0 −V DET (V) 1.0 0 − (° Low supply voltage release voltage +V DET vs. ambient temperature Ta 85 Seiko Instruments Inc. Rev.4.3 2.0 +V DET (V) 1.0 0 − (°C) _00 DET ...
Page 31
... Ta (° Write time t MAX ( Write time Data output delay time t 85 Seiko Instruments Inc. CMOS SERIAL E S-93C46B/56B/66B PR vs. power supply voltage 25° (ms ( ...
Page 32
... CMOS SERIAL E PROM S-93C46B/56B/66B 2. 7 Data output delay time t vs. ambient temperature (µs) 0.4 0.2 − (° Data output delay time Seiko Instruments Inc. PD vs. ambient temperature (µs) 1.0 0.5 − (°C) Rev.4.3 _00 ...
Page 33
... Operation temperature I: −40 to +85°C H: −40 to +105°C (Only 8-Pin SOP(JEDEC) , 8-Pin TSSOP) Fixed Pin assignment D: 8-Pin DIP 8-Pin SOP(JEDEC) 8-Pin TSSOP SNT-8A R: 8-Pin SOP(JEDEC) (Rotated) Product name S-93C46B : 1 K-bit S-93C56B : 2 K-bit S-93C66B : 4 K-bit Seiko Instruments Inc. 2 CMOS SERIAL E PROM S-93C46B/56B/66B 33 ...
Page 34
...
Page 35
...
Page 36
...
Page 37
...
Page 38
...
Page 39
...
Page 40
...
Page 41
...
Page 42
...
Page 43
...
Page 44
...
Page 45
... Use of the information described herein for other purposes and/or reproduction or copying without the express permission of Seiko Instruments Inc. is strictly prohibited. The products described herein cannot be used as part of any device or equipment affecting the human body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus installed in airplanes and other vehicles, without prior written permission of Seiko Instruments Inc ...