2K-BIT SERIAL EEPROM WITH MICROWIRE INTEFACE
(compatible to САТ93С56 Catalyst)
The IN93LC56 is a Electric erasable programmable ROM (EEPROM) memory data capac-
ity 2K (256x8 or 128x16) with 3-wire interface.
There are 3 modification of ICs
A: ICs IN93AA56AD/AN are 8 bits registers (256х8) - ORG pin not used
B: ICs IN93AA56BD/BN are 16 bits registers (128х16) - ORG pin not used
C: ICs IN93AA56CN/CD are configured as either registers of 8 bits (ORG pin at GND) or
16 bits (ORG pin at VCC, or not connected). Each register can be written (or read) serially
by using the DI (or DO) pin.
The ICs is purposed for reading, writing & nonvolatile data storage in electronic units with
3-wire interface. ICs can be used in TV-sets, telecom equipment & consumer electronic
■ 100 year 2K data retention for Ta=25oC;
■ Single power supply source (VСС = 1,8 V – 6,0 V);
■ Build-in voltage multiplier;
■ Serial I/O bus;
■ Autoincrement of word address;
■ Self-timed write cycle with auto-clear;
■ 1,000,000 Program/erase cycles;
■ Power-up internal logic setup;
■ Read cycles quantity are not limited;
■ Low power consumption;
■ Operating temperature range -40 … +85 oC.
1 D SUFFIX
CS Chip Select
SK Clock Input
DI Serial Data Input
Serial Data Output
+1.8 to 6.0V Power Supply
Memory Organization pin *
NC No Connection
* this pin is present only in IN93AA56CN, IN93AA56CD:
When the ORG pin is connected to VCC, the x16 organization is selected.
When it is connected to ground, the x8 pin is selected.
If the ORG pin is left unconnected, then an internal pullup device will select the x16 organization.