CAT25020U

CAT25010/20/40 1K/2K/4K SPI Serial CMOS EEPROM FEATURES s 10 MHz SPI compatible s 1.8 to 6.0 volt operation s Hardware and software protection s Low power CMOS technology s SPI modes (0,0 & 1,1)* s Commercial, industrial, automotive and extended s 1,000,000 program/erase cycles s 100 year data retention s Self-timed write cycle H GEN FR ALO EE LE A D F R E ETM s 8-Pin DIP/SOIC, 8-Pin TSSOP and 8-Pin MSOP s 16-byte page write buffer s Block write protection temperature ranges – Protect 1/4, 1/2 or all of EEPROM array DESCRIPTION The CAT25010/20/40 is a 1K/2K/4K Bit SPI Serial CMOS EEPROM internally organized as 128x8/256x8/ 512x8 bits. Catalyst’s advanced CMOS Technology substantially reduces device power requirements. The CAT25010/20/40 features a 16-byte page write buffer. The device operates via the SPI bus serial interface and is enabled though 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. The HOLD pin may be used to suspend any serial communication without resetting the serial sequence. The CAT25010/ 20/40 is designed with software and hardware write protection features including Block Write protection. The device is available in 8-pin DIP, 8-pin SOIC, 8-pin MSOP and 8-pin TSSOP packages. PIN CONFIGURATION SOIC Package (S, V) CS SO WP VSS 1 2 3 4 8 7 6 5 VCC HOLD SCK SI BLOCK DIAGRAM MSOP Package (R, Z)* CS SO WP VSS 1 2 3 4 8 7 6 5 VCC HOLD SCK SENSE AMPS SHIFT REGISTERS SI *CAT 25010/20 only DIP Package (P, L) CS SO WP VSS 1 2 3 4 8 7 6 5 VCC HOLD SCK SI TSSOP Package (U, Y) CS SO WP VSS 1 2 3 4 8 7 6 5 VCC HOLD SCK SI WORD ADDRESS BUFFERS COLUMN DECODERS SO SI CS WP HOLD SCK I/O CONTROL SPI CONTROL LOGIC BLOCK PROTECT LOGIC CONTROL LOGIC XDEC E2PROM ARRAY PIN FUNCTIONS Pin Name SO SCK WP VCC VSS CS SI HOLD NC 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 DATA IN STORAGE HIGH VOLTAGE/ TIMING CONTROL STATUS REGISTER 25C128 F02 * Other SPI modes available on request. Doc. No. 1006, Rev. L © 2004 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice 1 CAT25010/20/40 ABSOLUTE MAXIMUM RATINGS* Temperature Under Bias ................. –55°C to +125°C Storage Temperature ....................... –65°C to +150°C Voltage on any Pin with Respect to VSS(1) .................. –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) *COMMENT 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. Parameter Endurance Data Retention ESD Susceptibility Latch-Up Min. 1,000,000 100 2000 100 Max. Units Cycles/Byte Years Volts mA Reference Test Method MIL-STD-883, Test Method 1033 MIL-STD-883, Test Method 1008 MIL-STD-883, Test Method 3015 JEDEC Standard 17 TDR(3) VZAP (3) ILTH(3)(4) D.C. OPERATING CHARACTERISTICS VCC = +1.8V to +6.0V, unless otherwise specified. Limits Symbol ICC1 ICC2 ISB(6) ILI ILO VIL(5) VIH(5) VOL1 VOH1 VOL2 VOH2 Parameter Power Supply Current (Operating Write) Power Supply Current (Operating Read) Power Supply Current (Standby) Input Leakage Current Output Leakage Current Input Low Voltage Input High Voltage Output Low Voltage Output High Voltage Output Low Voltage Output High Voltage VCC-0.2 VCC - 0.8 0.2 -1 VCC x 0.7 Min. Typ. Max. 5 3 1 2 3 VCC x 0.3 VCC + 0.5 0.4 Units mA mA µA µA µA V V V V V V 2.7V≤VCC