hn58c256a Renesas Electronics Corporation., hn58c256a Datasheet - Page 3

• Manufacturer Part Number: hn58c256a
• Description: 256k Eeprom 32-kword ? 8-bit Ready/busy And Res Function Hn58c257a
• Manufacturer: Renesas Electronics Corporation.

HN58C256A Series
HN58C257A Series
256k EEPROM (32-kword × 8-bit)
Ready/Busy and RES function (HN58C257A)
Description
Renesas Technology
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
• 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 cell technology
• 10
• 10 years data retention
• Software data protection
• Write protection by RES pin (only the HN58C257A series)
• Industrial versions (Temperatur range: −20 to 85°C and – 40 to 85°C) are also available.
• There are also lead free products.
Rev.6.00, Oct. 26.2006, page 1 of 24
 Active: 20 mW/MHz, (typ)
 Standby: 110 µW (max)
5
erase/write cycles (in page mode)
's
HN58C256A and HN58C257A are electrically erasable and programmable ROMs
REJ03C0148-0600Z
Oct. 26. 2006
Rev. 6.00