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M34C02-W Dataheets PDF



Part Number M34C02-W
Manufacturers ST Microelectronics
Logo ST Microelectronics
Description EEPROM
Datasheet M34C02-W DatasheetM34C02-W Datasheet (PDF)

www.DataSheet4U.com M34C02-W M34C02-L M34C02-R 2 Kbit Serial I²C Bus EEPROM for DIMM serial presence detect Feature summary ■ ■ ■ ■ Software Data Protection for lower 128 Bytes Two Wire I2C Serial Interface 400kHz Transfer Rates Single Supply Voltage: – 2.5 to 5.5V for M34C02-W – 2.2 to 5.5V for M34C02-L – 1.8 to 5.5V for M34C02-R Byte and Page Write (up to 16 bytes) Random and Sequential Read modes Self-Timed Programming Cycle Automatic Address Incrementing Enhanced ESD/Latch-Up Protection Mo.

  M34C02-W   M34C02-W


Document
www.DataSheet4U.com M34C02-W M34C02-L M34C02-R 2 Kbit Serial I²C Bus EEPROM for DIMM serial presence detect Feature summary ■ ■ ■ ■ Software Data Protection for lower 128 Bytes Two Wire I2C Serial Interface 400kHz Transfer Rates Single Supply Voltage: – 2.5 to 5.5V for M34C02-W – 2.2 to 5.5V for M34C02-L – 1.8 to 5.5V for M34C02-R Byte and Page Write (up to 16 bytes) Random and Sequential Read modes Self-Timed Programming Cycle Automatic Address Incrementing Enhanced ESD/Latch-Up Protection More than 1 million Write cycles More than 40 Year Data Retention Packages – ECOPACK® (RoHS compliant) UFDFPN8 (MB) 2x3mm² (MLP) ■ ■ ■ ■ ■ ■ ■ ■ TSSOP8 (DW) 169 mil width April 2006 Rev 9 1/31 www.st.com 1 Contents M34C02-W, M34C02-L, M34C02-R Contents 1 2 Summary description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Signal description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.1 2.2 2.3 2.4 2.5 Serial Clock (SCL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Serial Data (SDA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Chip Enable (E0, E1, E2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Write Control (WC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Supply voltage (VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.5.1 2.5.2 2.5.3 Operating supply voltage VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Internal device reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Power-down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3 Device operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.1 3.2 3.3 3.4 3.5 3.6 3.7 Start Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Stop Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Acknowledge Bit (ACK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Data Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Memory Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Setting the Software Write-Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Write Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 3.7.1 3.7.2 3.7.3 Byte Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Page Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Minimizing system delays by polling on ACK . . . . . . . . . . . . . . . . . . . . . 16 3.8 Read Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3.8.1 3.8.2 3.8.3 3.8.4 Random Address Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Current Address Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Sequential Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Acknowledge in Read Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4 Use within a DRAM DIMM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 4.1 Programming the M34C02-W, M34C02-L and M34C02-R . . . . . . . . . . . . 19 5 Initial delivery state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 2/31 M34C02-W, M34C02-L, M34C02-R Contents 6 7 8 9 10 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Package mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 3/31 List of tables M34C02-W, M34C02-L, M34C02-R List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. Table 12. Table 13. Table 14. Table 15. Table 16. Table 17. Table 18. Signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Device Select Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Operating Modes . . . . . . . . . ..


ZXTN25060BZ M34C02-W M34C02-R


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