A93C66
AiT Semiconductor Inc.
www.ait-ic.com
THREE-WIRE SERIAL EEPROM
4K (512 X 8 OR 256 X 16)
DESCRIPTION
FEATURES
The A93C66 provides 4096 bits of serial electrically
erasable programmable read only memory
(EEPROM) organized as 256 words of 16 bits each,
when the ORG pin is connected to VCC and 512
words of 8 bits each when it is tied to ground.
Three-wire Serial Interface
CC = 1.8V to 5.5V
V
Sequential Read Operation
2 MHz Clock Rate (5V) Compatibility
Self-timed Write Cycle (5 ms max)
1 Million Write Cycles guaranteed
Data Retention > 100 Years
The A93C66 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 it 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.
Available in SOP8 and TSSOP8 Package
ORDERING INFORMATION
Package Type Part Number
A93C66M8R
A93C66M8U
SOP8
M8
A93C66M8VR
A93C66M8VU
A93C66TMX8R
A93C66TMX8U
A93C66TMX8VR
A93C66TMX8VU
TSSOP8
Note
TMX8
The A93C66 is available in SOP8 and TSSOP8
Package.
R: Tape & Reel
U: Tube
V: Halogen free Package
AiT provides all RoHS products
suffix “ V “ means Halogen free Package
REV1.0
- MAY 2012 RELEASED -
- 1 -
AITSEMI [ AiT Semiconductor ]
