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93LC56-SN fiches techniques PDF

Microchip Technology - 1K/2K/4K 2.0V Microwire Serial EEPROM

Numéro de référence 93LC56-SN
Description 1K/2K/4K 2.0V Microwire Serial EEPROM
Fabricant Microchip Technology 
Logo Microchip Technology 





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93LC56-SN fiche technique
M
93LC46/56/66
1K/2K/4K 2.0V Microwire® Serial EEPROM
FEATURES
• Single supply with programming operation down
to 2.0V (Commercial only)
• Low power CMOS technology
- 1 mA active current typical
- 5 µA standby current (typical) at 3.0V
• ORG pin selectable memory configuration
- 128 x 8 or 64 x 16-bit organization (93LC46)
- 256 x 8 or 128 x 16-bit organization(93LC56)
- 512 x 8 or 256 x 16-bit organization(93LC66)
• Self-timed ERASE and WRITE cycles
(including auto-erase)
• Automatic ERAL before WRAL
• Power on/off data protection circuitry
• Industry standard 3-wire serial I/O
• Device status signal during ERASE/WRITE cycles
• Sequential READ function
• 10,000,000 ERASE/WRITE cycles guaranteed on
93LC56 and 93LC66
• 1,000,000 E/W cycles guaranteed on 93LC46
• Data retention > 200 years
• 8-pin PDIP/SOIC and 14-pin SOIC package
(SOIC in JEDEC and EIAJ standards)
• Temperature ranges supported
- Commercial (C):
0°C to +70°C
- Industrial (I):
-40°C to +85°C
PACKAGE TYPES
BLOCK DIAGRAM
VCC
VSS
MEMORY
ARRAY
ADDRESS
DECODER
ADDRESS
COUNTER
DI
CS
CLK
DATA REGISTER
MODE
DECODE
LOGIC
CLOCK
GENERATOR
OUTPUT
BUFFER
DO
DESCRIPTION
The Microchip Technology Inc. 93LC46/56/66 are 1K,
2K, and 4K low-voltage serial Electrically Erasable
PROMs. The device memory is configured as x8 or x16
bits, depending on the ORG pin setup. Advanced
CMOS technology makes these devices ideal for
low-power, nonvolatile memory applications. The
93LC46/56/66 is available in standard 8-pin DIP and 8/
14-pin surface mount SOIC packages. The 93LC46X/
56X/66X are only offered in an “SN” package.
SOIC
DIP
CS 1
CLK 2
DI 3
DO 4
8 VCC
CS
7 NU CLK
6 ORG DI
5 VSS
DO
SOIC
18
27
36
45
SOIC
VCC
NU
NU VCC
ORG CS
VSS CLK
1
2
3
4
8
7
6
5
NC
CS
CLK
ORG NC
VSS DI
DO DO
DI NC
1
2
3
4
5
6
7
14 NC
13 Vcc
12 NU
11 NC
10 ORG
9 VSS
8 NC
© 1997 Microchip Technology Inc.
DS11168L-page 1

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