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CAT28C257 データシート(PDF) 1 Page - ON Semiconductor |
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CAT28C257 データシート(HTML) 1 Page - ON Semiconductor |
1 / 13 page © Semiconductor Components Industries, LLC, 2009 December, 2009 − Rev. 6 1 Publication Order Number: CAT28C257/D CAT28C257 256 kb CMOS Parallel EEPROM Description The CAT28C257 is a fast, low power, 5 V−only CMOS Parallel EEPROM organized as 32K x 8−bits. It requires a simple interface for in−system programming. On−chip address and data latches, self−timed write cycle with auto−clear and VCC power up/down write protection eliminate additional timing and protection hardware. DATA Polling and Toggle status bits signal the start and end of the self−timed write cycle. Additionally, the CAT28C257 features hardware and software write protection. The CAT28C257 is manufactured using ON Semiconductor’s advanced CMOS floating gate technology. It is designed to endure 100,000 program/erase cycles and has a data retention of 100 years. The device is available in JEDEC approved 28−pin DIP or 32−pin PLCC packages. Features • Fast Read Access Times: 120/150 ns • Low Power CMOS Dissipation: – Active: 25 mA Max. – Standby: 150 mA Max. • Simple Write Operation: – On−chip Address and Data Latches – Self−timed Write Cycle with Auto−clear • Fast Write Cycle Time: − 5 ms Max. • CMOS and TTL Compatible I/O • Automatic Page Write Operation: − 1 to 128 Bytes in 5 ms − Page Load Timer • End of Write Detection: − Toggle Bit − DATA Polling • Hardware and Software Write Protection • 100,000 Program/Erase Cycles • 100 Year Data Retention • Commercial, Industrial and Automotive Temperature Ranges http://onsemi.com See detailed ordering and shipping information in the package dimensions section on page 13 of this data sheet. ORDERING INFORMATION PLCC−32 N, G SUFFIX CASE 776AK Address Inputs A0−A14 Data Inputs/Outputs I/O0−I/O7 Chip Enable CE Output Enable OE Write Enable WE 5 V Supply VCC Function Pin Name PIN FUNCTION Ground VSS No Connect NC PDIP−28 P, L SUFFIX CASE 646AE |
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同様の説明 - CAT28C257 |
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