93AA76A/B/C, 93LC76A/B/C,
93C76A/B/C
8K Microwire Compatible Serial EEPROM
Device Selection Table
Part Number
VCC Range
ORG Pin
PE Pin
Word Size
Temp Ranges
Packages
93AA76A
93AA76B
93LC76A
93LC76B
93C76A
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
No
No
8-bit
16-bit
I
OT
I
OT
OT
No
No
8-bit
I, E
I, E
I, E
I, E
I
No
No
16-bit
OT
No
No
8-bit
OT
93C76B
No
No
16-bit
OT
93AA76C
93LC76C
93C76C
Yes
Yes
Yes
Yes
Yes
Yes
8 or 16-bit
8 or 16-bit
8 or 16-bit
P, SN, ST, MS
P, SN, ST, MS
P, SN, ST, MS
I, E
I, E
Features
Description
• Low-power CMOS technology
• ORG pin to select word size for ‘76C’ version
The Microchip Technology Inc. 93XX76A/B/C devices
are 8K bit, low-voltage, serial Electrically Erasable
PROMs (EEPROM). Word-selectable devices such as
the 93XX76C are dependent upon external logic
levels driving the ORG pin to set word size. For
dedicated 8-bit communication, the 93XX76A devices
are available, while the 93XX76B devices provide
dedicated 16-bit communication, available on SOT-23
devices only. A Program Enable (PE) pin allows the
user to write-protect the entire memory array.
Advanced CMOS technology makes these devices
ideal for low-power, nonvolatile memory applications.
The 93XX Series is available in standard packages
including 8-lead PDIP and SOIC, and advanced
packaging including 8-lead MSOP, 6-lead SOT-23,
and 8-lead TSSOP. Pb-free (Pure Matte Sn) finish is
also available.
• 1024 x 8-bit organization ‘A’ devices (no ORG)
• 512 x 16-bit organization ‘B’ devices (no ORG)
• Program Enable pin to write-protect the entire
array (except on SOT-23 packages)
• Self-timed ERASE/WRITE cycles (including
auto-erase)
• Automatic ERAL before 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 E/W cycles
• Data retention > 200 years
• Temperature ranges supported:
Package Types (not to scale)
- Industrial (I)
-40°C to +85°C
-40°C to +125°C
SOT-23
(OT)
PDIP/SOIC
(P, SN)
- Automotive (E)
Pin Function Table
CS
CLK
DI
1
2
3
4
8
7
6
5
V
CC
1
2
3
6
5
4
DO
V
CC
PE
VSS
CS
Name
Function
ORG
DI
CLK
CS
CLK
DI
Chip Select
DO
VSS
Serial Data Clock
Serial Data Input
Serial Data Output
Ground
TSSOP/MSOP
(ST, MS
)
DO
1
8
7
6
5
CS
CLK
DI
VCC
VSS
PE
2
3
4
PE
ORG
VSS
Program Enable
Memory Configuration
Power Supply
DO
ORG
VCC
2004 Microchip Technology Inc.
DS21796D-page 1