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HN58C257A

Hitachi
Part Number HN58C257A
Manufacturer Hitachi
Description 256k EEPROM (32-kword x 8-bit) Ready/Busy and RES function
Published Jul 25, 2018
Detailed Description HN58C256A Series HN58C257A Series 256k EEPROM (32-kword × 8-bit) Ready/Busy and RES function (HN58C257A) ADE-203-410D (Z...
Datasheet PDF File HN58C257A PDF File

HN58C257A
HN58C257A

Overview
HN58C256A Series HN58C257A Series 256k EEPROM (32-kword × 8-bit) Ready/Busy and RES function (HN58C257A) ADE-203-410D (Z) Rev.
4.
0 Oct.
24, 1997 Description The Hitachi HN58C256A and HN58C257A are electrically erasable and programmable ROMs organized as 32768-word × 8-bit.
They have realized high speed low power consumption and high reliability by employing advanced MNOS memory technology and CMOS process and circuitry technology.
They also have a 64-byte page programming function to make their write operations faster.
Features • Single 5 V supply: 5 V ±10% • Access time: 85 ns/100 ns (max) • Power dissipation  Active: 20 mW/MHz, (typ)  Standby: 110 µW (max) • On-chip latches: address, data, CE, OE, WE • Automatic byte write: 10 ms max • Automatic page write (64 bytes): 10 ms max • Ready/Busy (only the HN58C257A series) • Data polling and Toggle bit • Data protection circuit on power on/off • Conforms to JEDEC byte-wide standard • Reliable CMOS with MNOS...


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