ACE93C46
Technology
Description
Three-wire Serial EEPROM
The ACE93C46 provides 1024 bits of serial electrically erasable programmable read only memory (EEPROM)
organized as 64 words of 16 bits each, when the ORG pin is connected to VCC and 128 words of 8 bits each when it is
tied to ground. The ACE93C46 is available in space-saving 8-lead PDIP, 8-lead TSSOP and 8-lead JEDEC SOIC
packages. The ACE93C46 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.
Features
Low-voltage operation – 1.8 (VCC=1.8 to 5.5V)
Three-wire serial Interface
2MHz clock rate(5V) compatibility
Self-timed write cycle (5 ms max)
High-reliability – Endurance: 1 Million write cycles
Data retention: 100 Years
8-lead PDIP, SOP-8, TSSOP-8 Packages
Packaging Type
DIP-8
SOP-8
TSSOP-8
Pin Configurations
Pin Name
CS
SK
DI
DO
GND
Vcc
ORG
DC
Function
Chip select
Serial Data Clock
Serial Data Input
Serial Data Output
Ground
Power Supply
Internal Organization
Don’t Connect
VER 1.2
1
ACE [ ACE TECHNOLOGY CO., LTD. ]
