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HMN1M8DN

Hanbit Electronics
Part Number HMN1M8DN
Manufacturer Hanbit Electronics
Description Non-Volatile SRAM MODULE 8Mbit
Published Jan 2, 2007
Detailed Description www.DataSheet4U.com HANBit HMN1M8DN Non-Volatile SRAM MODULE 8Mbit (1,024K X 8-Bit), 40Pin-DIP, 5V Part No. HMN1M8DN ...
Datasheet PDF File HMN1M8DN PDF File

HMN1M8DN
HMN1M8DN

Overview
www.
DataSheet4U.
com HANBit HMN1M8DN Non-Volatile SRAM MODULE 8Mbit (1,024K X 8-Bit), 40Pin-DIP, 5V Part No.
HMN1M8DN GENERAL DESCRIPTION The HMN1M8DN Nonvolatile SRAM is a 8,388,608-bit static RAM organized as 1,048,576 bytes by 8 bits.
The HMN1M8DN has a self-contained lithium energy source provide reliable non-volatility coupled with the unlimited write cycles of standard SRAM and integral control circuitry which constantly monitors the single 5V supply for an out-oftolerance condition.
When such a condition occurs, the lithium energy source is automatically switched on to sustain the memory until after VCC returns valid and write protection is unconditionally enabled to prevent garbled data.
In addition the SRAM is unconditionally write-protected to prevent an inadvertent write operation.
At this time the integral energy source is switched on to sustain the memory until after VCC returns valid.
The HMN1M8DN uses extremely low standby current CMOS SRAM ’s, coupled with small lithium coin cells to provide nonvolatility without long write-cycle times and the write-cycle limitations associated with EEPROM.
FEATURES w Access time : 70, 85, 120, 150ns w High-density design : 8Mbit Design w Battery internally isolated until power is applied w Industry-standard 40-pin 1,024K x 8 pinout w Unlimited write cycles w Data retention in the absence of VCC w 10-years minimum data retention in absence of power w Automatic write-protection during power-up/power-down cycles w Data is automatically protected during power loss PIN ASSIGNMENT NC NC NC A18 A16 A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 DQ0 DQ1 DQ2 VSS NC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 NC VCC A19 NC A15 A17 /WE A13 A8 A9 A11 /OE A10 /CE DQ7 DQ6 DQ5 DQ4 DQ3 NC OPTIONS w Timing 70 ns 85 ns 120 ns 150 ns MARKING - 70 - 85 -120 -150 40-pin Encapsulated Package URL : www.
hbe.
co.
kr REV.
0.
2 (August, 2002) 1 HANBit Electronics Co.
,Ltd.
HANBit HM...


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