CAT25C64LGI

H EE GEN FR ALO CAT25C32/64 32K/64K-Bit SPI Serial CMOS EEPROM LE FEATURES A D F R E ETM ■ 1,000,000 program/erase cycles ■ 10 MHz SPI compatible ■ 100 year data tetention ■ 1.8 to 6.0 volt operation ■ Self-timed write cycle ■ Hardware and software protection ■ 8-pin DIP/SOIC, 14-pin TSSOP and 20-pin ■ Low power CMOS technology 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 CAT25C32/64 is a 32K/64K-Bit SPI Serial CMOS EEPROM internally organized as 4Kx8/8Kx8 bits. Catalyst’s advanced CMOS Technology substantially reduces device power requirements. The CAT25C32/ 64 features a 64-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 CAT25C32/64 is designed with software and hardware write protection features including Block write protection. The device is available in 8-pin DIP, 8-pin SOIC, 14-pin TSSOP and 20-pin TSSOP packages. PIN CONFIGURATION DIP Package (P, L) CS SO WP VSS 1 2 3 8 7 6 4 5 SOIC Package (S, V) VCC HOLD SCK SI CS SO WP VSS 1 2 3 4 8 7 6 5 VCC HOLD SCK SI TSSOP Package (U14, Y14) CS SO NC NC NC WP VSS 1 2 3 4 5 6 7 14 13 12 11 10 9 8 VCC HOLD NC NC NC SCK SI BLOCK DIAGRAM TSSOP Package (U20, Y20) NC CS SO SO NC NC WP VSS NC NC 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 NC VCC HOLD HOLD NC NC SCK SI NC NC SENSE AMPS SHIFT REGISTERS WORD ADDRESS BUFFERS CS WP HOLD SCK I/O CONTROL SPI CONTROL LOGIC BLOCK PROTECT LOGIC PIN FUNCTIONS Pin Name CONTROL LOGIC SO SI COLUMN DECODERS XDEC E2PROM ARRAY DATA IN STORAGE HIGH VOLTAGE/ TIMING CONTROL STATUS REGISTER © 2004 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice Function SO Serial Data Output SCK Serial Clock WP Write Protect VCC +1.8V to +6.0V Power Supply VSS Ground CS Chip Select SI Serial Data Input HOLD Suspends Serial Input NC No Connect Doc No. 1001, Rev. G CAT25C32/64 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. Endurance Max. Units 1,000,000 Cycles/Byte TDR(3) Data Retention 100 Years VZAP(3) ESD Susceptibility 2000 Volts ILTH(3)(4) Latch-Up 100 mA 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 @ 10MHz SO=open; CS=Vss ICC2 Power Supply Current (Operating Read) 2 mA VCC = 5.0V FCLK = 10MHz 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