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Microchip |
93AA46A/B/C, 93LC46A/B/C,
93C46A/B/C
1K Microwire Compatible Serial EEPROM
Device Selection Table
Part Number
93AA46A
93AA46B
93LC46A
93LC46B
93C46A
93C46B
93AA46C
93LC46C
93C46C
VCC Range
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
ORG Pin
No
No
No
No
No
No
Yes
Yes
Yes
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:
- Industrial (I) -40°C to +85°C
- Automotive (E) -40°C to +125°C
Word Size Temp Ranges
Packages
8-bit
16-bit
8-bit
16-bit
8-bit
16-bit
8- or 16-bit
8- or 16-bit
8- or 16-bit
I P, SN, ST, MS, OT, MC, MN
I P, SN, ST, MS, OT, MC, MN
I, E P, SN, ST, MS, OT, MC, MN
I, E P, SN, ST, MS, OT, MC, MN
I, E P, SN, ST, MS, OT, MC, MN
I, E P, SN, ST, MS, OT, MC, MN
I P, SN, ST, MS, MC, MN
I, E P, SN, ST, MS, MC, MN
I, E P, SN, ST, MS, MC, MN
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. 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.
2002-2011 Microchip Technology Inc.
DS21749J-page 1
93AA46A/B/C, 93LC46A/B/C, 93C46A/B/C
Package Types (not to scale)
ROTATED SOIC
(ex: 93LC46BX)
NC 1
VCC 2
CS 3
CLK 4
8 ORG*
7 VSS
6 DO
5 DI
PDIP/SOIC
(P, SN)
CS
CLK
DI
DO
1
2
3
4
8 VCC
7 NC
6 ORG*
5 VSS
TSSOP/MSOP
(ST, MS)
CS
CLK
DI
DO
1
2
3
4
8
7
6
5
VCC
NC
ORG*
VSS
SOT-23
(OT)
DO 1
VSS 2
DI 3
6 VCC
5 CS
4 CLK
DFN/TDFN
(MC, MN)
CS 1
CLK 2
DI 3
DO 4
8 VCC
7 NC
6 ORG*
5 VSS
*ORG pin is NC on A/B devices
DS21749J-page 2
2002-2011 Microchip Technology Inc.
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