![](http://datasheet.mmic.net.cn/30000/93AA46T-I-MS_datasheet_2227505/93AA46T-I-MS_1.png)
2002 Microchip Technology Inc.
DS21749A-page 1
93AA46, 93LC46, 93C46
93AA46A/B, 93LC46A/B, 93C46A/B
Device Selection Table
Features
Low power CMOS technology
ORG pin for selectable memory configuration
No org pin for dedicated word sizes
- 128 x 8-bit organization ‘A’ version devices
- 64 x 16-bit organization ‘B’ version devices
Self-timed ERASE and 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 during ERASE/WRITE cycles
Sequential READ function
1,000,000 E/W cycles
Data retention > 200 years
8-pin MSOP and 6-pin SOT
Temperature ranges supported:
Description
The Microchip Technology Inc. 93AA46, 93LC46,
93C46, 93AA46A/B, 93LC46A/B & 93C46A/B are 1K
low
voltage
serial
Electrically
Erasable
PROMs
(EEPROM). Generic memory devices such as the
93AA46, 93LC46 or 93C46 are dependent upon exter-
nal logic levels driving the ORG pin to set word size.
For dedicated 8-bit communication, the 93AA46A,
93LC46A or 93C46A devices are selected, while the
93AA46B, 93LC46B and 93C46B devices are selected
for 16 bits. Advanced CMOS technology makes these
devices ideal for low power, non-volatile memory
applications. This 93XX Series is available in standard
8-lead MSOP and 6-lead SOT-23 packages.
Block Diagram
Package Types
Part
Number
V
CC
Range
Org Pin Word Size
Temp
Ranges
93AA46
1.8-5.5
Yes
8 or 16-bit
I
93LC46
2.5-5.5
Yes
8 or 16-bit
I, E
93C46
4.5-5.5
Yes
8 or 16-bit
I, E
93AA46A
1.8-5.5
No
8-bit
I
93AA46B
1.8-5-5
No
16-bit
I
93LC46A
2.5-5.5
No
8-bit
I, E
93LC46B
2.5-5.5
No
16-bit
I, E
93C46A
4.5-5.5
No
8-bit
I, E
93C46B
4.5-5.5
No
16-bit
I, E
- Industrial (I):
-40°C to
+85°C
- Automotive (E)
-40°C to +125°C
DATA REGISTER
OUTPUT
MEMORY
ARRAY
CLK
V
CC
V
SS
CLOCK
MODE
DECODE
LOGIC
REGISTER
CS
ORG*
DI
ADDRESS
DECODER
ADDRESS
COUNTER
BUFFER
DO
* Org input is not available on A/B devices
CS
CLK
DI
DO
1
2
3
4
8
7
6
5
V
CC
NU
ORG*
V
SS
MSOP
SOT-23**
DO
VSS
DI
1
2
3
6
5
4
VCC
CS
CLK
** SOT-23 device only offered in A/B versions
* Org pin is not available on A/B devices
1K Microwire Serial EEPROM