HANBit

HMN1M8D

URL : www.hbe.co.kr

1

HANBit Electronics Co.,Ltd

Rev. 0.0 (April, 2002)

GENERAL DESCRIPTION

The HMN1M8D Nonvolatile SRAM is a 8,388,608-bit static RAM organized as 1,048,576 bytes by 8 bits.

The HMN1M8D 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-of-

tolerance condition. When such a condition occurs, the lithium energy source is automatically switched on to sustain the

SRAM is unconditionally write-protected to prevent an inadvertent write operation. At this time the integral energy source is

The HMN1M8D uses extremely low standby current CMOS SRAM’s, coupled with small lithium coin cells to provide non-

volatility without long write-cycle times and the write-cycle limitations associated with EEPROM.

FEATURES

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Access time : 70, 85, 120, 150 ns

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High-density design : 8Mbit Design

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Battery internally isolated until power is applied

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Industry-standard 36-pin 1,024K x 8 pinout

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Unlimited write cycles

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10-years minimum data retention in absence of power

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Automatic write-protection during power-up/power-down

cycles

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Data is automatically protected during power loss

OPTIONS

MARKING

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Timing

70 ns

- 70

85 ns

- 85

120 ns

-100

150 ns

-150

PIN ASSIGNMENT

Non-Volatile SRAM MODULE 8Mbit (1,024K X 8-Bit), 36Pin-DIP, 5V

Part No. HMN1M8D

36-pin Encapsulated Package

1

36

12

25

14

23

15

22

10

27

11

26

13

24

2

35

3

34

4

33

6

31

9

28

7

30

5

32

8

29

16

21

NC

/CE

/WE

/OE

17

20

18

19

NC

NC