EC93C46A Datasheet, PDF (1/14 Pages) E-CMOS Corporation – Three-wire Serial EEPROM

Three-wire Serial EEPROM
EC93C46A
General Description
The EC93C46A 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 EC93C46A is available in space-
saving PDIP-8, SOP-8, TSSOP-8, MSOP-8, and
DFN-8 packages. The EC93C46A 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)
signals. 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
- 1.7V (Vcc = 1.7V to 5.5V)
Three-wire Serial Interface
2 MHz Clock Rate(5V) Compatibility
Self-timed Write Cycle (5 ms max)
High-reliability
- Endurance: 1 Million Write Cycles
- Data Retention: 100 Years
PDIP-8, SOP-8, TSSOP-8, MSOP-8, and
DFN-8 packages.
Pin Configuration
SOP-8
TSSOP-8
MSOP-8
Top view
Pin Name
CS
SK
DI
DO
GND
VCC
ORG
DC
Functions
Chip Select
Serial Data Clock
Serial Data Input
Serial Data Output
Ground
Power Supply
Internal Organization
Don't Connect
Top view
DFN-8
Bottom view
Top view
PDIP-8
Top view
E-CMOS Corp. (www.ecmos.com.tw)
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2G30N-Rev.F001