M14C64
M14C32
Memory Card IC
64/32 Kbit Serial I²C Bus EEPROM
s
Single Supply Voltage (2.5 V to 5.5 V)
s
Hardware Write Control
s
BYTE and PAGE WRITE (up to 32 Bytes)
s
BYTE, RANDOM and SEQUENTIAL READ
Modes
s
Self-Timed Programming Cycle
s
Automatic Address Incrementing
s
Enhanced ESD/Latch-Up Behaviour
s
1 Million Erase/Write Cycles (minimum)
s
40 Year Data Retention (minimum)
s
5 ms Programming Time (typical)
DESCRIPTION
Each device is an electrically erasable programmable memory (EEPROM) fabricated with STMicroelectronics’s
High
Endurance,
Single
Polysilicon, CMOS technology. This guarantees
an endurance typically well above one million
Erase/Write cycles, with a data retention of
40 years. The memory operates with a power supply as low as 2.5 V.
The M14C32 is available in wafer form (either
sawn or unsawn) and in micromodule form (on
film). The M14C64 is available in micro-module
2
Two Wire I2C Serial Interface
Supports 400 kHz Protocol
2
s
2
Compatible with I2C Extended Addressing
2
s
Micromodule (D20)
Micromodule (D22)
Wafer
Figure 1. Logic Diagram
VCC
Table 1. Signal Names
SDA
Serial Data/Address Input/
Output
SCL
Serial Clock
WC
Supply Voltage
GND
SDA
Write Control
VCC
SCL
Ground
WC
M14xxx
GND
AI02217
October 1999
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