25LC040AT-H/SN Microchip

25LC010A 25LC020A 25LC040A 1K-4K SPI Serial EEPROM High Temp Family Data Sheet Features: Description: Max. Clock 5 MHz Microchip Technology Inc. 25LCXXXA* devices are low-density 1 through 4 Kbit Serial Electrically Eras- Low-Power CMOS Technology: able PROMs (EEPROM). The devices are organized in - Max. Write Current: 5 mA at 5.5V, 5 MHz blocks of x8-bit memory and support the Serial Periph- - Read Current: 5 mA at 5.5V, 5 MHz eral Interface (SPI) compatible serial bus architecture. - Standby Current: 10 A at 5.5V Byte-level and page-level functions are supported. 128 x 8 through 512 x 8-bit Organization The bus signals required are a clock input (SCK) plus Byte and Page-level Write Operations separate data in (SI) and data out (SO) lines. Access to Self-Timed Erase and Write Cycles (6 ms max.) the device is controlled through a Chip Select (CS) input. Block Write Protection: - Protect none, 1/4, 1/2 or all of array Communication to the device can be paused via the hold pin (HOLD). While the device is paused, transi- Built-in Write Protection: tions on its inputs will be ignored, with the exception of - Power-on/off data protection circuitry Chip Select, allowing the host to service higher priority - Write enable latch interrupts. - Write-protect pin The 25LCXXXA is available in a standard 8-lead SOIC Sequential Read package. The package is Pb-free and RoHS High Reliability: Compliant. - Endurance: >1M erase/write cycles - Data retention: > 200 years Package Types (not to scale) - ESD protection: > 4000V SOIC Temperature Range Supported: (SN) - Extended (H): -40C to +150C CS 1 8 VCC Package is Pb-Free and RoHS Compliant SO 2 7 HOLD Pin Function Table WP 3 6 SCK VSS 4 5 SI Name Function CS Chip Select Input SO Serial Data Output WP Write-Protect VSS Ground SI Serial Data Input SCK Serial Clock Input HOLD Hold Input VCC Supply Voltage *25LCXXXA is used in this document as a generic part number for the 25 series devices. 2009 Microchip Technology Inc. Preliminary DS22136B-page 125LCXXXA Device Selection Table Density Max. Speed Page Size Temp. Part Number Organization VCC Range Package (bits) (MHz) (Bytes) Range 25LC010A 1K 128 x 8 2.5V-5.5V 5 16 H SN 25LC020A 2K 256 x 8 2.5V-5.5V 5 16 H SN 25LC040A 4K 512 x 8 2.5V-5.5V 5 16 H SN DS22136B-page 2 Preliminary 2009 Microchip Technology Inc.