參數(shù)資料
型號(hào)： M34W02
廠商： 意法半導(dǎo)體
元件分類： DRAM
英文描述： 2Kbit Serial EEPROM with Software Data Protection(2Mb串行EEPROM)
中文描述： 2Kbit串行EEPROM與軟件數(shù)據(jù)保護(hù)（處理器串行EEPROM中）
文件頁(yè)數(shù)： 1/17頁(yè)
文件大小： 152K
代理商： M34W02
M34W02
2Kbit Serial EEPROM
with Software Data Protection
PRELIMINARY DATA
March 1998
1/17
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
AI01960
3
E0-E2
SDA
VCC
M34W02
WC
SCL
VSS
Figure 1. Logic Diagram
TWO WIRE I
2
C SERIAL INTERFACE
SUPPORTS 400kHz PROTOCOL
1 MILLION ERASE/WRITE CYCLES
40 YEARS DATA RETENTION
SINGLE SUPPLY VOLTAGE:
– 4.5V to 5.5V for M34W02
– 2.5V to 5.5V for M34W02-W
– 1.8V to 5.5V for M34W02-R
SOFTWARE DATA PROTECTION
BYTE and PAGE WRITE (up to 16 BYTES)
BYTE, RANDOM and SEQUENTIAL READ
MODES
SELF TIMED PROGRAMMING CYCLE
AUTOMATIC ADDRESS INCREMENTING
ENHANCED ESD and LATCH-UP
PERFORMANCES
DESCRIPTION
The M34W02 is a 2K bit electrically erasable pro-
grammable memory (EEPROM), organized as 256
x 8-bits which includes a Software Data Protection
feature. This allows Write Protection of a block of
memory with a selectable size and location. By
sending the device a specific sequence, it is possi-
ble to protect the top or the bottom locations of the
memory area. The protection is activated when the
WC pin is held high.
E0-E2
Chip Enable Inputs
SDA
Serial Data Address Input/Output
SCL
Serial Clock
WC
Write Control
V
CC
Supply Voltage
V
SS
Ground
Table 1. Signal Names
8
1
SO8 (MN)
150mil Width
8
1
PSDIP8 (BN)
0.25mm Frame
8
1
TSSOP8 (DW)
169mil Width
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