CAT25C128P

H CAT25C128/256 EE GEN FR ALO 128K/256K-Bit SPI Serial CMOS EEPROM LE A D F R E ETM FEATURES ■ 100,000 Program/Erase Cycles ■ 5 MHz SPI Compatible ■ 100 Year Data Retention ■ 1.8 to 6.0 Volt Operation ■ Self-Timed Write Cycle ■ Hardware and Software Protection ■ 8-Pin DIP/SOIC, 16-Pin SOIC, 14-Pin TSSOP ■ Low Power CMOS Technology and 20-Pin TSSOP ■ SPI Modes (0,0 &1,1)* ■ 64-Byte Page Write Buffer ■ Commercial, Industrial and Automotive ■ Block Write Protection Temperature Ranges – Protect 1/4, 1/2 or all of EEPROM Array DESCRIPTION The HOLD pin may be used to suspend any serial communication without resetting the serial sequence. The CAT25C128/256 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, 14-pin TSSOP and 20-pin TSSOP packages. The CAT25C128/256 is a 128K/256K-Bit SPI Serial CMOS EEPROM internally organized as 16Kx8/32Kx8 bits. Catalyst’s advanced CMOS Technology substantially reduces device power requirements. The CAT25C128/256 features a 64-byte page write buffer. The device operates via the SPI bus serial interface and is enabled through a Chip Select (CS). In addition to the Chip Select, the clock input (SCK), data in (SI) and data out (SO) are required to access the device. PIN CONFIGURATION SOIC Package (S**, K, V**, X) CS 1 8 VCC SO 2 3 4 7 6 5 HOLD SCK WP VSS SI BLOCK DIAGRAM TSSOP Package (U14, Y)** DIP Package (P, L) CS SO NC NC NC WP VSS 1 14 2 3 13 12 4 11 5 10 6 9 7 8 V CC HOLD CS SO NC WP NC VSS NC SCK SI 1 8 2 3 7 6 4 5 SENSE AMPS SHIFT REGISTERS VCC HOLD SCK SI WORD ADDRESS BUFFERS COLUMN DECODERS SOIC Package (S16, V)** TSSOP Package (U20, Y)** CS NC NC WP VSS 1 2 3 4 16 VCC 15 14 13 HOLD NC NC 5 6 12 11 7 8 10 9 NC NC SCK SI NC CS SO SO NC NC WP VSS NC NC 1 2 3 4 20 19 18 17 5 16 6 15 14 13 12 11 7 8 9 10 SO SI NC V CC HOLD HOLD NC NC SCK SI NC NC CS WP HOLD SCK I/O CONTROL SPI CONTROL LOGIC BLOCK PROTECT LOGIC CONTROL LOGIC SO NC NC XDEC PIN FUNCTIONS Pin Name SO SCK WP VCC VSS CS SI HOLD NC DATA IN STORAGE Function Serial data Output Serial Clock Write Protect +1.8V to +6.0V Power Supply Ground Chip Select Serial Data Input Suspends Serial Input No Connect © 2005 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice EE PROM ARRAY HIGH VOLTAGE/ TIMING CONTROL STATUS REGISTER * Other SPI modes available on request. **CAT25C128 only. 1 Doc. No. 1018, Rev. H CAT25C128/256 ABSOLUTE MAXIMUM RATINGS* *COMMENT Temperature Under Bias ................. –55°C to +125°C Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions outside of those listed in the operational sections of this specification is not implied. Exposure to any absolute maximum rating for extended periods may affect device performance and reliability. Storage Temperature ....................... –65°C to +150°C Voltage on any Pin with Respect to VSS1) ................... –2.0V to +VCC +2.0V VCC with Respect to VSS ................................ –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 RELIABILITY CHARACTERISTICS Symbol NEND(3) Parameter Min. Units 100,000 Cycles/Byte Data Retention 100 Years VZAP(3) ESD Susceptibility 2000 Volts ILTH(3)(4) Latch-up 100 mA TDR (3) Endurance Max. D.C. OPERATING CHARACTERISTICS VCC = +1.8V to +6.0V, unless otherwise specified. Limits Symbol Parameter Min. Typ. Max. Units Test Conditions ICC1 Power Supply Current (Operating Write) 10 mA VCC = 5V @ 5MHz SO=open; CS=Vss ICC2 Power Supply Current (Operating Read) 2 mA VCC = 5.0V FCLK = 5MHz ISB(5) Power Supply Current (Standby) 1 µA CS = VCC VIN = VSS or VCC ILI Input Leakage Current 2 µA ILO Output Leakage Current 3 µA VIL(3) Input Low Voltage -1 VCC x 0.3 V VIH(3) Input High Voltage VCC x 0.7 VCC + 0.5 V VOL1 Output Low Voltage 0.4 V VOH1 Output High Voltage VOL2 Output Low Voltage VOH2 Output High Voltage VCC - 0.8 V 0.2 VCC-0.2 VOUT = 0V to VCC, CS = 0V 4.5V≤VCC