93AA46A/B/C, 93LC46A/B/C,
93C46A/B/C
1K Microwire Compatible Serial EEPROM
Device Selection Table
Part Number
VCC Range
ORG Pin
Word Size
Temp Ranges
Packages
93AA46A
93AA46B
93LC46A
93LC46B
93C46A
1.8-5.5
1.8-5-5
2.5-5.5
2.5-5.5
4.5-5.5
4.5-5.5
1.8-5.5
2.5-5.5
4.5-5.5
No
No
8-bit
16-bit
I
P, SN, ST, MS, OT, MC, MN
P, SN, ST, MS, OT, MC, MN
P, SN, ST, MS, OT, MC, MN
P, SN, ST, MS, OT, MC, MN
P, SN, ST, MS, OT, MC, MN
P, SN, ST, MS, OT, MC, MN
P, SN, ST, MS, MC, MN
I
No
8-bit
I, E
I, E
I, E
I, E
I
No
16-bit
No
8-bit
93C46B
No
16-bit
93AA46C
93LC46C
93C46C
Yes
Yes
Yes
8- or 16-bit
8- or 16-bit
8- or 16-bit
I, E
I, E
P, SN, ST, MS, MC, MN
P, SN, ST, MS, MC, MN
Features:
Pin Function Table
Name
Function
• 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)
CS
Chip Select
Serial Data Clock
CLK
DI
Serial Data Input
Serial Data Output
Ground
• Self-Timed Erase/Write Cycles (including
Auto-Erase)
DO
VSS
NC
• Automatic Erase All (ERAL) Before Write All
(WRAL)
No internal connection
Memory Configuration
Power Supply
ORG
VCC
• Power-On/Off Data Protection Circuitry
• Industry Standard 3-Wire Serial I/O
• Device Status Signal (Ready/Busy)
• Sequential Read Function
Description:
• 1,000,000 Erase/Write Cycles
• Data Retention > 200 Years
• RoHS Compliant
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/TDFN and 8-lead TSSOP. All packages are
Pb-free (Matte Tin) finish.
• Temperature Ranges Supported:
- Industrial (I)
-40°C to +85°C
- Automotive (E) -40°C to +125°C
2002-2013 Microchip Technology Inc.
DS20001749K-page 1