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HN58V256A Datasheet, PDF (1/25 Pages) Hitachi Semiconductor – 256k EEPROM (32-kword x 8-bit) Ready/Busy and RES function (HN58V257A) | |||
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HN58V256A Series
HN58V257A Series
256k EEPROM (32-kword à 8-bit)
Ready/Busy and RES function (HN58V257A)
REJ03C0147-0500Z
(Previous ADE-203-357D (Z) Rev.4.0)
Rev. 5.00
Nov. 17. 2003
Description
Renesas Technology's HN58V256A and HN58V257A are electrically erasable and programmable ROMs
organized as 32768-word à 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 3 V supply: 2.7 to 5.5 V
⢠Access time: 120 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 HN58V257A series)
⢠Data polling and Toggle bit
⢠Data protection circuit on power on/off
⢠Conforms to JEDEC byte-wide standard
⢠Reliable CMOS with MNOS cell technology
⢠105 erase/write cycles (in page mode)
⢠10 years data retention
⢠Software data protection
⢠Write protection by RES pin (only the HN58V257A series)
⢠Industrial versions (Temperature range: â20 to 85°C and â40 to 85°C) are also available.
⢠There are free also lead free products.
Rev.5.00, Nov. 17.2003, page 1 of 22
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