2010 Microchip Technology Inc. DS21749H-page 1
93AA46A/B/C, 93LC46A/B/C,
93C46A/B/C
Device Selection Table
Features:
• Low-Power CMOS Technology
• ORG Pin to Select Word Size for ‘46C’ Version
• 128 x 8-bit Organization ‘A’ Devices (no ORG)
• 64 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 3-Wire Serial I/O
• Device Status Signal (Ready/
Busy)
• Sequential Read Function
• 1,000,000 Erase/Write Cycles
• Data Retention > 200 Years
• Pb-free and RoHS Compliant
• Temperature Ranges Supported:
Pin Function Table
Description:
The Microchip Technology Inc. 93XX46A/B/C devices
are 1Kbit low-voltage serial Electrically Erasable
PROMs (EEPROM). Word-selectable devices such as
the 93AA46C, 93LC46C or 93C46C are dependent
upon external logic levels driving the ORG pin to set
word size. For dedicated 8-bit communication, the
93AA46A, 93LC46A or 93C46A devices are available,
while the 93AA46B, 93LC46B and 93C46B devices
provide dedicated 16-bit communication. Advanced
CMOS technology makes these devices ideal for low-
power, nonvolatile memory applications. The entire
93XX Series is available in standard packages includ-
ing 8-lead PDIP and SOIC, and advanced packaging
including 8-lead MSOP, 6-lead SOT-23, 8-lead
2x3 DFN and 8-lead TSSOP. All packages are Pb-free
(Matte Tin) finish.
Part Number V
CC Range ORG Pin Word Size Temp Ranges Packages
93AA46A 1.8-5.5 No 8-bit I P, SN, ST, MS, OT, MC
93AA46B 1.8-5-5 No 16-bit I P, SN, ST, MS, OT, MC
93LC46A 2.5-5.5 No 8-bit I, E P, SN, ST, MS, OT, MC
93LC46B 2.5-5.5 No 16-bit I, E P, SN, ST, MS, OT, MC
93C46A 4.5-5.5 No 8-bit I, E P, SN, ST, MS, OT, MC
93C46B 4.5-5.5 No 16-bit I, E P, SN, ST, MS, OT, MC
93AA46C 1.8-5.5 Yes 8- or 16-bit I P, SN, ST, MS, MC
93LC46C 2.5-5.5 Yes 8- or 16-bit I, E P, SN, ST, MS, MC
93C46C 4.5-5.5 Yes 8- or 16-bit I, E P, SN, ST, MS, MC
- Industrial (I) -40°C to +85°C
- Automotive (E) -40°C to +125°C
Name Function
CS Chip Select
CLK Serial Data Clock
DI Serial Data Input
DO Serial Data Output
V
SS Ground
NC No internal connection
ORG Memory Configuration
V
CC Power Supply
1K Microwire Compatible Serial EEPROM
