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93LC46B Datasheet

  • 93LC46B

  • 1K Microwire Compatible Serial EEPROM

  • 34頁

  • Microchip   Microchip

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M
FEATURES
93LC46A/B
BLOCK DIAGRAM
MEMORY
ARRAY
ADDRESS
DECODER
1K 2.5V Microwire
廬
Serial EEPROM
鈥?Single supply with operation down to 2.5V
鈥?Low power CMOS technology
- 1 mA active current (typical)
- 1
碌
A standby current (maximum)
鈥?128 x 8 bit organization (93LC46A)
鈥?64 x 16 bit organization (93LC46B)
鈥?Self-timed ERASE and WRITE cycles
(including auto-erase)
鈥?Automatic ERAL before WRAL
鈥?Power on/off data protection circuitry
鈥?Industry standard 3-wire serial interface
鈥?Device status signal during ERASE/WRITE cycles
鈥?Sequential READ function
鈥?1,000,000 E/W cycles guaranteed
鈥?Data retention > 200 years
鈥?8-pin PDIP/SOIC and 8-pin TSSOP packages
鈥?Available for the following temperature ranges:
- Commercial (C):
0
擄
C to +70
擄
C
- Industrial (I):
-40
擄
C to +85
擄
C
ADDRESS
COUNTER
DATA
REGISTER
DI
MODE
DECODE
LOGIC
CLOCK
GENERATOR
Vcc
Vss
OUTPUT
BUFFER
DO
CS
CLK
DESCRIPTION
The Microchip Technology Inc. 93LC46AX/BX are 1K-
bit, low voltage serial Electrically Erasable PROMs. The
device memory is con鏗乬ured as x8 (93LC46A) or
x16 bits (93LC46B). Advanced CMOS technology
makes these devices ideal for low power nonvolatile
memory applications. The 93LC46AX/BX is available in
standard 8-pin DIP, 8-pin surface mount SOIC, and
TSSOP packages. The 93LC46AX/BX are offered only
in a 150-mil SOIC package.
PACKAGE TYPE
DIP
CS
CLK
DI
DO
1
8
Vcc
CS
7
6
5
NC
CLK
NC
Vss
DO
DI
SOIC
SOIC
CS
CLK
DI
DO
1
2
3
4
TSSOP
93LC46A/B
8
7
6
5
Vcc
NC
NC
Vss
93LC46AX/BX
1
2
3
4
8
7
6
5
V
CC
NC
NC
Vss
NU
Vcc
CS
CLK
1
2
3
4
8
7
6
5
NC
Vss
DO
DI
93LC46A/B
93LC46A/B
2
3
4
Microwire is a registered trademark of National Semiconductor Incorporated.
漏
1997 Microchip Technology Inc.
Preliminary
DS21173D-page 1

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