AT93C46A-10C ATMEL Corporation, AT93C46A-10C Datasheet
AT93C46A-10C
Manufacturer Part Number
AT93C46A-10C
Description
3-wire Serial EePROM 1k (64x16)
Manufacturer
ATMEL Corporation
Datasheet
1.AT93C46A-10C.pdf
(15 pages)
Features
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Description
The AT93C46A provides 1024 bits of serial electrically erasable programmable read
only memory (EEPROM) organized as 64 words of 16 bits each. The device is opti-
mized for use in many industrial and commercial applications where low power and
low voltage operation are essential. The AT93C46A is available in space saving 8-lead
PDIP, 8-lead JEDEC SOIC, and 8-lead TSSOP packages.
The AT93C46A is enabled through the Chip Select pin (CS), and accessed via a 3-
wire serial interface consisting of Data Input (DI), Data Output (DO), and Shift Clock
(SK). Upon receiving a READ instruction at DI, the address is decoded and the data is
clocked out serially on the data output pin DO. The WRITE cycle is completely self-
timed and no separate ERASE cycle is required before WRITE. The WRITE cycle is
only enabled when the part is in the ERASE/WRITE ENABLE state. When CS is
brought “high” following the initiation of a WRITE cycle, the DO pin outputs the
READY/BUSY status of the part.
The AT93C46A is available in 2.7V to 5.5V and 2.5V to 5.5V versions.
Pin Configurations
Pin Name
CS
SK
DI
DO
GND
VCC
NC
DC
Low-Voltage and Standard-Voltage Operation
3-Wire Serial Interface
2 MHz Clock Rate (5V) Compatibility
Self-Timed Write Cycle (10 ms max)
High Reliability
Automotive Grade and Extended Temperature Devices Available
8-lead PDIP, 8-lead JEDEC SOIC, and 8-lead TSSOP Packages
– 2.7 (V
– 2.5 (V
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
CC
CC
= 2.7V to 5.5V)
= 2.5V to 5.5V)
Function
Chip Select
Serial Data Clock
Serial Data Input
Serial Data Output
Ground
Power Supply
No Connect
Don’t Connect
DO
CS
SK
DI
DO
CS
SK
DI
DO
CS
SK
DI
1
2
3
4
8-lead TSSOP
1
2
3
4
8-lead SOIC
8-lead PDIP
1
2
3
4
8
7
6
5
8
7
6
5
8
7
6
5
VCC
DC
NC
GND
VCC
DC
NC
GND
VCC
DC
NC
GND
3-Wire
Serial EEPROM
1K (64 x 16)
AT93C46A
Rev. 0539F–SEEPR–08/02
1
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