4K Microwire Compatible Serial EEPROM - Microchip Technology
Description
93AA66A/B/C, 93LC66A/B/C, 93C66A/B/C
4-Kbit Microwire Compatible Serial EEPROM
Device Selection Table
Part Number VCC Range
93AA66A 93AA66B 93LC66A 93LC66B 93C66A 93C66B 93AA66C 93LC66C 93C66C
1.
8V-5.
5V 1.
8V-5-5V 2.
5V-5.
5V 2.
5V-5.
5V 4.
5V-5.
5V 4.
5V-5.
5V 1.
8V-5.
5V 2.
5V-5.
5V 4.
5V-5.
5V
ORG Pin
No No No No No No Yes Yes Yes
Word Size
8-bit 16-bit 8-bit 16-bit 8-bit 16-bit 8-bit or 16-bit 8-bit or 16-bit 8-bit or 16-bit
Temperature Ranges
Packages
I
MC, MS, P, SN, OT, MN,ST
I
MC, MS, P, SN, OT, MN,ST
I, E
MC, MS, P, SN, OT, MN,ST
I, E
MC, MS, P, SN, OT, MN,ST
I, E
MC, MS, P, SN, OT, MN,ST
I, E
MC, MS, P, SN, OT, MN,ST
I
MC, MS, P, SN, MN, ST
I, E
MC, MS, P, SN, MN, ST
I, E
MC, MS, P, SN, MN, ST
Features
• Low-Power CMOS Technology • ORG Pin to Select Word Size for ‘66C’ Version • 512 x 8-bit Organization ‘A’ Devices (no ORG) • 256 x 16-bit organization ‘B’ Devices (no ORG) • Self-tImed Erase/Write Cycles (including
Auto-Erase) • Automatic Erase All (ERAL) Before Write All
(WRAL) • Power-On/Off Data Protection Circuitry • Industry Standard Three-Wire Serial I/O • Device Status Signal (Ready/Busy) • Sequential Read Function • High Reliability:
- Endurance: 1,000,000 erase/write cycles - Data retention: > 200 years - ESD protection: > 4000V • RoHS Compliant • Temperature Ranges Supported:
- Industrial (I) -40°C to +85°C - Extended (E) -40°C to +125°C • Automotive AEC-Q100 Qualified
Pin Function Table
Name
Function
CS CLK DI DO VSS NC ORG VCC
Chip Select Serial Data Clock Serial Data Input Serial Data Output Ground No internal connection Memory Configuration Power Supply
Description
The Microchip Technology Inc.
93XX66A/B/C devices are 4-Kbit low-voltage serial Electrically Erasable PROMs (EEPROM).
Word-selectable devices such as the 93AA66C, 93LC66C or 93C66C are dependent upon external logic levels driving the ORG pin to set word size.
For dedicated 8-bit communication, the 93XX66A devices are available, while the 93XX66B devices provide ded...
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