M14256 Datasheet, PDF (1/12 Pages) STMicroelectronics – Memory Card IC 256/128 Kbit Serial I²C Bus EEPROM

M14256
M14128
Memory Card IC
256/128 Kbit Serial I²C Bus EEPROM
PRELIMINARY DATA
s Compatible with I²C Extended Addressing
s Two Wire I²C Serial Interface
Supports 400 kHz Protocol
s Single Supply Voltage (2.5 V to 5.5 V)
s Hardware Write Control
s BYTE and PAGE WRITE (up to 64 Bytes)
s BYTE, RANDOM and SEQUENTIAL READ
Modes
s Self-Timed Programming Cycle
s Automatic Address Incrementing
s Enhanced ESD/Latch-Up Behaviour
s 100,000 Erase/Write Cycles (minimum)
s 40 Year Data Retention (minimum)
s 5 ms Programming Time (typical)
Micromodule (D22)
DESCRIPTION
Each device is an electrically erasable program-
mable memory (EEPROM) fabricated with STMi-
croelectronics’s High Endurance, Double
Polysilicon, CMOS technology. This guarantees
an endurance typically well above 100,000 Erase/
Write cycles, with a data retention of 40 years. The
memory operates with a power supply as low as
2.5 V.
The M14256 and M14128 are available in micro-
module form only. For availability of the M14256 or
Figure 1. Logic Diagram
VCC
Table 1. Signal Names
SDA
Serial Data/Address Input/
Output
SCL
Serial Clock
WC
Write Control
V_CC
Supply Voltage
GND
Ground
SCL
SDA
WC
M14xxx
GND
AI02217
October 1999
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
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