95P04 Datasheet PDF Download, STMicroelectronics





(PDF) 95P04 Datasheet Download

Part Number 95P04
Description SERIAL ACCESS SPI BUS 4K 512 x 8 EEPROM
Manufacture STMicroelectronics
Total Page 12 Pages
PDF Download Download 95P04 Datasheet PDF

Features: 93LCS56/66 2K/4K 2.5V Microwire® Serial EEPROM with Software Write Protect FEA TURES • Single supply with programmin g operation down to 2.5V • Low power CMOS technology - 1 mA active current t ypical - 5 µA standby current (typical ) at 3.0V • x16 memory organization - 128x16 (93LCS56) - 256x16 (93LCS66) Software write protection of user de ned memory space • Self timed erase and write cycles • Automatic ERAL be fore WRAL • Power on/off data protect ion • Industry standard 3-wire serial I/O • Device status signal during E/ W • Sequential READ function • 1,00 0,000 E/W cycles guaranteed • Data re tention > 200 years • 8-pin PDIP/SOIC and 14-pin SOIC packages • Temperatu re ranges supported - Commercial (C): 0 ˚C to +70˚C - Industrial (I): -40˚C to +85˚C BLOCK DIAGRAM VCC V SS MEMO RY ARRAY ADDRESS DECODER ADDRESS COUN TER OUTPUT BUFFER DATA REGISTER DI PRE PE CS MODE DECODE LOGIC DO CLK CLOC K GENERATOR DESCRIPTION The Microchip Technology Inc. 93LCS56/66 are low voltage Serial Electrical.

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93LCS56/66
2K/4K 2.5V Microwire® Serial EEPROM with Software Write Protect
FEATURES
• Single supply with programming operation down
to 2.5V
• Low power CMOS technology
- 1 mA active current typical
- 5 µA standby current (typical) at 3.0V
• x16 memory organization
- 128x16 (93LCS56)
- 256x16 (93LCS66)
• Software write protection of user defined memory
space
• Self timed erase and write cycles
• Automatic ERAL before WRAL
• Power on/off data protection
• Industry standard 3-wire serial I/O
• Device status signal during E/W
• Sequential READ function
• 1,000,000 E/W cycles guaranteed
• Data retention > 200 years
• 8-pin PDIP/SOIC and 14-pin SOIC packages
• Temperature ranges supported
- Commercial (C):
- Industrial (I):
0˚C to +70˚C
-40˚C to +85˚C
BLOCK DIAGRAM
VCC
V SS
MEMORY
ARRAY
ADDRESS
DECODER
DI
PRE
PE
CS
DATA REGISTER
MODE
DECODE
LOGIC
ADDRESS
COUNTER
OUTPUT
BUFFER
DO
CLOCK
CLK GENERATOR
DESCRIPTION
The Microchip Technology Inc. 93LCS56/66 are low volt-
age Serial Electrically Erasable PROMs with memory
capacities of 2K bits/4K bits respectively. A write protect
register is included in order to provide a user defined
region of write protected memory. All memory locations
greater than or equal to the address placed in the write
protect register will be protected from any attempted write
or erase operation. It is also possible to protect the
address in the write protect register permanently by using
a one time only instruction (PRDS). Any attempt to alter
data in a register whose address is equal to or greater
than the address stored in the protect register will be
aborted. Advanced CMOS technology makes this device
ideal for low power non-volatile memory applications.
PACKAGE TYPES
CS
CLK
DI
DO
DIP
18
27
36
45
93LCS56
93LCS66
VCC
PRE
PE
VSS
CS
CLK
DI
DO
SOIC
18
27
36
45
93LCS56
93LCS66
VCC
PRE
PE
VSS
SOIC
NC 1
CS 2
CLK 3
NC 4
DI 5
DO 6
NC 7
14 NC
13 VCC
12 PRE
11 NC
10 PE
9 VSS
8 NC
93LCS56
93LCS66
Microwire is a registered trademark of National Semiconductor Incorporated.
© 1996 Microchip Technology Inc.
Preliminary
DS11181D-page 1
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