EC93C56A Datasheet, PDF (1/14 Pages) E-CMOS Corporation – Three-wire Serial EEPROM

Three-wire Serial EEPROM
EC93C56A/66A
General Description
The EC93C56A/66A provides 2048/4096 bits of serial
electrically erasable programmable read only memory
(EEPROM) organized as 128/256 words of 16 bits
each, when the ORG pin is connected to VCC and
256/512 words of 8 bits each when it is tied to ground.
The EC93C56A/66A is available in space-saving
PDIP-8, SOP-8, TSSOP-8, MSOP-8, and DFN-8
packages. The EC93C56A/66A 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
- 1.7V (VCC = 1.7V to 5.5V)
Three-wire Serial Interface
Sequential Read Operation
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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