CAT25C256S-1.8TE13

CAT25C128/256 128K/256K-Bit SPI Serial CMOS E2PROM FEATURES s 5 MHz SPI Compatible s 1.8 to 6.0 Volt Operation s Hardware and Software Protection s Zero Standby Current s Low Power CMOS Technology s SPI Modes (0,0 &1,1) s Commercial, Industrial and Automotive s 100,000 Program/Erase Cycles s 100 Year Data Retention s Self-Timed Write Cycle s 8-Pin DIP/SOIC, 16-Pin SOIC, 14-Pin TSSOP and 20-Pin TSSOP s 64-Byte Page Write Buffer s Block Write Protection Temperature Ranges – Protect 1/4, 1/2 or all of E2PROM Array DESCRIPTION The CAT25C128/256 is a 128K/256K-Bit SPI Serial CMOS E2PROM 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 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 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. PIN CONFIGURATION SOIC Package (S, K) TSSOP Package (U14) CS SO WP VSS 1 2 3 4 8 7 6 5 VCC HOLD SCK SI BLOCK DIAGRAM DIP Package (P) CS SO WP VSS 1 2 3 4 8 7 6 5 VCC HOLD SCK SI SENSE AMPS SHIFT REGISTERS SOIC Package (S16) CS SO NC NC NC NC WP VSS 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC HOLD NC NC NC NC SCK SI 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 WORD ADDRESS BUFFERS COLUMN DECODERS TSSOP Package (U20) NC CS SO SO NC NC WP VSS NC NC PIN FUNCTIONS Pin Name SO SCK WP VCC VSS CS SI HOLD 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 SO SI CS WP HOLD SCK I/O CONTROL SPI CONTROL LOGIC BLOCK PROTECT LOGIC CONTROL LOGIC XDEC E2PROM ARRAY 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 STATUS REGISTER DATA IN STORAGE HIGH VOLTAGE/ TIMING CONTROL 25C128 F02 Note: CAT25C256 not available in 8-Lead S or U packages. Doc. No. 25088-00 1/01 © 2001 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice 1 CAT25C128/256 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. 100,000 100 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 ILI ILO VIL(3) VIH(3) 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. 10 2 0 2 3 VCC x 0.3 VCC + 0.5 0.4 Units mA mA µA µA µA V V V V V V 4.5V≤VCC