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-by
HN58C257A 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
HN58C256A_HitachiSemiconductor.pdf
Datasheet Details
HN58C257A, HN58C256A
Hitachi
126.43 KB
256k eeprom (32-kword x 8-bit) ready/busy and res function.
This datasheet PDF includes multiple part numbers: HN58C257A, HN58C256A.
Please refer to the document for exact specifications by model.
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