CAT25040

EEPROM Serial 1/2/4-Kb SPI CAT25010, CAT25020, CAT25040 Description The CAT25010/20/40 are a EEPROM Serial 1/2/4−Kb SPI devices internally organized as 128x8/256x8/512x8 bits. They feature a 16−byte page write buffer and support the Serial Peripheral Interface (SPI) protocol. The device is enabled through a Chip Select (CS) input. In addition, the required bus signals are a clock input (SCK), data input (SI) and data output (SO) lines. The HOLD input may be used to pause any serial communication with the CAT25010/20/40 device. These devices feature software and hardware write protection, including partial as well as full array protection. Features 20 MHz (5 V) SPI Compatible 1.8 V to 5.5 V Supply Voltage Range SPI Modes (0,0) & (1,1) 16−byte Page Write Buffer Self−timed Write Cycle Hardware and Software Protection Block Write Protection − Protect 1/4, 1/2 or Entire EEPROM Array Low Power CMOS Technology 1,000,000 Program/Erase Cycles 100 Year Data Retention Industrial and Extended Temperature Range PDIP, SOIC, TSSOP 8−Lead and UDFN 8−Pad Packages These Devices are Pb−Free, Halogen Free/BFR Free, and RoHS Compliant VCC SI CS CAT25010 WP CAT25020 SO CAT25040 HOLD SCK VSS Figure 1. Functional Symbol DATA SHEET www.onsemi.com SOIC−8 V SUFFIX CASE 751BD UDFN−8 HU4 SUFFIX CASE 517AZ TSSOP−8 Y SUFFIX CASE 948AL PIN CONFIGURATION CS 1 SO VCC HOLD WP SCK VSS SI SOIC (V), TSSOP (Y), UDFN (HU4) For the location of Pin 1, please consult...