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M95256-RMN3T fiches techniques PDF

ST Microelectronics - 256/128 Kbit Serial SPI Bus EEPROM With High Speed Clock

Numéro de référence M95256-RMN3T
Description 256/128 Kbit Serial SPI Bus EEPROM With High Speed Clock
Fabricant ST Microelectronics 
Logo ST Microelectronics 





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M95256-RMN3T fiche technique
M95256
M95128
256/128 Kbit Serial SPI Bus EEPROM
With High Speed Clock
PRELIMINARY DATA
s SPI Bus Compatible Serial Interface
s Supports Positive Clock SPI Modes
s 5 MHz Clock Rate (maximum)
s Single Supply Voltage:
– 4.5V to 5.5V for M95xxx
– 2.7V to 3.6V for M95xxx-V
– 2.5V to 5.5V for M95xxx-W
– 1.8V to 3.6V for M95xxx-R
s Status Register
s Hardware and Software Protection of the Status
Register
s BYTE and PAGE WRITE (up to 64 Bytes)
s Self-Timed Programming Cycle
s Resizeable Read-Only EEPROM Area
s Enhanced ESD Protection
s 100,000 Erase/Write Cycles (minimum)
s 40 Year Data Retention (minimum)
DESCRIPTION
These SPI-compatible electrically erasable
programmable memory (EEPROM) devices are
organized as 32K x 8 bits (M95256) and 16K x 8
bits (M95128), and operate down to 2.7 V (for the
8
1
PSDIP8 (BN)
0.25 mm frame
8
1
SO8 (MN)
150 mil width
Figure 1. Logic Diagram
VCC
14
1
TSSOP14 (DL)
169 mil width
8
1
SO8 (MW)
200 mil width
Table 1. Signal Names
C Serial Clock
D Serial Data Input
Q Serial Data Output
S Chip Select
W Write Protect
HOLD
Hold
VCC Supply Voltage
VSS Ground
D
C
S
W
HOLD
M95xxx
VSS
Q
AI01789C
March 2000
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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