鈥?/div>
Low-power CMOS technology
ORG pin to select word size for 鈥?6C version
256 x 8-bit organization 鈥楢鈥?ver. devices (no ORG)
128 x 16-bit organization 鈥楤鈥?ver. devices (no
ORG)
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:
- Industrial (I)
- Automotive (E)
-40掳C to +85掳C
-40掳C to +125掳C
Description
The Microchip Technology Inc. 93XX56A/B/C devices
are 2K bit low voltage serial Electrically Erasable
PROMs (EEPROM). Word-selectable devices such as
the 93AA56C, 93LC56C or 93C56C are dependent
upon external logic levels driving the ORG pin to set
word size. For dedicated 8-bit communication, the
93AA56A, 93LC56A or 93C56A devices are available,
while the 93AA56B, 93LC56B and 93C56B 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, and 8-lead
TSSOP. Pb-free (Pure Matte Sn) finish is also
available.
Package Types (not to scale)
ROTATED SOIC
(ex: 93LC56BX)
NC
1
2
3
4
8
7
6
5
ORG*
V
SS
DO
DI
CS
CLK
DI
DO
PDIP/SOIC
(P, SN)
1
2
3
4
8
7
6
5
V
CC
NC
ORG*
V
SS
Pin Function Table
Name
CS
CLK
DI
DO
V
SS
NC
ORG
V
CC
Chip Select
Serial Data Clock
Serial Data Input
Serial Data Output
Ground
No internal connection
Memory Configuration
Power Supply
CS
CLK
DI
DO
Function
V
CC
CS
CLK
TSSOP/MSOP
(ST, MS)
1
2
3
4
8
7
6
5
V
CC
NC
ORG*
V
SS
DO
V
SS
DI
SOT-23
(OT)
1
2
3
6
5
4
V
CC
CS
CLK
* ORG pin is NC on A/B devices
铮?/div>
2003 Microchip Technology Inc.
DS21794B-page 1
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