CAT25CXXX

Features:

`10 MHz SPI Compatible
`1.8 to 6.0 Volt Operation
`Hardware and Software Protection
`Zero Standby Current
`Low Power CMOS Technology
`SPI Modes (0,0 &1,1)
`Commercial, Industrial and Automotive Temperature Ranges
`Active High or Low Reset Outputs
Precision Power Supply Voltage Monitoring
5V, 3.3V, 3V and 1.8V Options
`Watchdog Timer on CS
`1,000,000 Program/Erase Cycles
`100 Year Data Retention
`Self-Timed Write Cycle
`8-Pin DIP/SOIC, 16-Pin SOIC and 14-Pin TSSOP
`Page Write Buffer
`Block Write Protection
Protect 1/4, 1/2 or all of E2PROM Array
`Programmable Watchdog Timer
`Built-in inadvertent Write Protection
V_CC Lock Out


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⁾ ........................ 100 mA


Description

The CAT25CXXX is a single chip solution to three popular functions of EEPROM Memory, precision reset controller and watchdog timer. The EEPROM Memory is a 2K/4K/8K/16K/32K-Bit SPI Serial CMOS E²PROM internally organized as 256x8/512x8/1024x8/2048x8/ 4096x8 bits. Catalyst's advanced CMOS Technology substantially reduces device power requirements. The 2K/4K devices feature a 16-byte page write buffer. The 8K/16K/32K devices feature a 32-byte page write buffer.The device operates via the SPI bus serial interface and is enabled though a Chip Select (CS). Inaddition to the Chip Select, the clock input (SCK), data in (SI) and data out (SO) are required to access the device. The reset function of the 25CXXX protects the system during brown out and power up/down condtions.
During system failure the watchdog timer feature protects the microcontroller with a reset signal. The CAT25CXXX is designed with software and hardware write protection features including Block Lock protection.
The device is available in 8-pin DIP, 8-pin SOIC, 16-pin SOIC and 14-pin TSSOP packages.