2008 Microchip Technology Inc.
DS21749G-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
VCC 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
VSS
Ground
NC
No internal connection
ORG
Memory Configuration
VCC
Power Supply
1K Microwire Compatible Serial EEPROM