CAT33C804A

Features:

 Single 3V Supply
 Password READ/WRITE Protection: 1 to 8 Bytes
 Memory Pointer WRITE Protection
 Sequential READ Operation
 256 x 16 or 512 x 8 Selectable Serial Memory
 UART Compatible Asynchronous Protocol
 Commercial, Industrial and Automotive
 Temperature Ranges
 100,000 Program/Erase Cycles
 I/O Speed: 9600 Baud
   Clock Frequency: 4.9152 MHz Xtal
 Low Power Consumption:
   Active: 3 mA
   Standby: 250 mA
 100 Year Data Retention


Pinout




Specifications

Temperature Under Bias ................. 55°C to +125°C
Storage Temperature ......................65°C to +150°C
Voltage on Any Pin with
Respect to Ground(1) ................. 2.0V to +VCC + 2.0V
VCC with Respect to Ground ...................2.0V to +7.0V
Package Power Dissipation
Capability (Ta = 25°C) .......................................... 1.0W
Lead Soldering Temperature (10 secs) ................ 300°C
Output Short Circuit Current(2) ............................ 100mA


Description

The CAT33C804A is a 4K-bit Serial E2PROM that safeguards stored data from unauthorized access by use of a user selectable (1 to 8 byte) access code and a movable memory pointer. Two operating modes provide unprotected and password-protected operation allowing the user to configure the device as anything from a ROM to a fully protected no-access memory. The CAT33C804A uses a UART compatible asynchronous protocol and has a Sequential Read feature where data can be sequentially clocked out of the memory array. CAT33C804A is available in 8-pin DIP or 16-pin SOIC packages.