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Hanbit Electronics - Non-Volatile SRAM MODULE 16Mbit

Numéro de référence HMN2M8D
Description Non-Volatile SRAM MODULE 16Mbit
Fabricant Hanbit Electronics 
Logo Hanbit Electronics 





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HMN2M8D fiche technique
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HANBit
HMN2M8D
Non-Volatile SRAM MODULE 16Mbit (2,048K x 8-Bit), 36Pin-DIP, 5V
Part No. HMN2M8D
GENERAL DESCRIPTION
The HMN2M8D Nonvolatile SRAM is a 16,777,216-bit static RAM organized as 2,097,152 bytes by 8 bits.
The HMN2M8D 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
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 HMN2M8D uses extremely low standby current CMOS SRAMs, coupled with small lithium coin cells to provide non-
volatility 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 : 16Mbit Design
w Battery internally isolated until power is applied
w Industry-standard 36-pin 2,048K x 8 pinout
w Unlimited write cycles
w Data retention in the absence of VCC
w 5-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
w Industrial temperature operation
w Timing
70 ns
- 70
85 ns
120 ns
- 85
-100
150 ns
-150
PIN ASSIGNMENT
NC 1
A20 2
A18 3
A16 4
A14 5
A12 6
A7 7
A6 8
A5 9
A4 10
A3 11
A2 12
A1 13
A0 14
DQ0 15
DQ1 16
DQ2 17
VSS 18
36 VCC
35 A19
34 NC
33 A15
32 A17
31 /WE
30 A13
29 A8
28 A9
27 A11
26 /OE
25 A10
24 /CE
23 DQ7
22 DQ6
21 DQ5
20 DQ4
19 DQ3
36-pin Encapsulated Package
URL : www.hbe.co.kr
Rev. 1.0 (May, 2002)
1 HANBit Electronics Co.,Ltd

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