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CAT25C256U14A-TE13 Datasheet(PDF) 1 Page - Catalyst Semiconductor |
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CAT25C256U14A-TE13 Datasheet(HTML) 1 Page - Catalyst Semiconductor |
1 / 11 page 1 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 Temperature Ranges 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 – Protect 1/4, 1/2 or all of E2PROM Array PIN CONFIGURATION DIP Package (P) PIN FUNCTIONS Pin Name 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 BLOCK DIAGRAM © 2001 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice DESCRIPTION The CAT25C128/256 is a 128K/256K-Bit SPI Serial CMOS E2PROM internally organized as 16Kx8/32Kx8 bits. Catalyst’s advanced CMOS Technology substan- tially 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 pro- tection 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. TSSOP Package (U20) SENSE AMPS SHIFT REGISTERS SPI CONTROL LOGIC WORD ADDRESS BUFFERS I/O CONTROL E2PROM ARRAY COLUMN DECODERS XDEC HIGH VOLTAGE/ TIMING CONTROL SO 25C128 F02 STATUS REGISTER BLOCK PROTECT LOGIC DATA IN STORAGE SI CS WP HOLD SCK SOIC Package (S, K) VSS SO WP VCC HOLD SCK SI 1 2 3 4 8 7 6 5 CS SO WP CS VCC HOLD SCK SI 1 2 3 4 8 7 6 5 VSS Doc. No. 25088-00 1/01 CS WP HOLD VCC NC NC NC NC SO NC NC VSS SCK SI 1 2 3 4 5 6 7 8 9 10 11 12 13 14 SOIC Package (S16) NC NC CS WP HOLD HOLD VCC NC NC NC NC NC NC SO NC NC SO VSS SCK SI 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 TSSOP Package (U14) CS NC 1 2 3 4 14 13 12 11 NC NC NC 5 6 710 9 8 NC SCK VSS SI NC WP VCC HOLD SO 15 16 NC NC Note: CAT25C256 not available in 8-Lead S or U packages. |
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