Datasheet > HMN328D

HMN328D

更新时间： 2024-09-24 03:42:19

品牌	Logo	应用领域
HANBIT		静态存储器
页数	文件大小	规格书
9页	157K
描述
Non-Volatile SRAM MODULE 256Kbit (32K x 8-Bit),28Pin DIP, 5V

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HMN328D 数据手册

HANBit

HMN328D

Non-Volatile SRAM MODULE 256Kbit (32K x 8-Bit),28Pin DIP, 5V

Part No. HMN328D

GENERAL DESCRIPTION

The HMN328D nonvolatile SRAM is a 262,144-bit static RAM organized as 32,768 bytes by 8 bits.

The HMN328D 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 V_CCreturns 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 V_CCreturns valid.

The HMN328D 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

w Access time : 70, 85, , 120, 150 ns

PIN ASSIGNMENT

w High-density design : 256Kbit Design

w Battery internally isolated until power is applied

w Industry-standard 28-pin 32K x 8 pinout

A¹⁴

A¹²

A⁷

A⁶

A⁵

A⁴

A³

V^CC

/WE

A¹³

w Unlimited write cycles

w Data retention in the absence of V_CC

w 10-years minimum data retention in absence of power

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

cycles

A⁸

A⁹

A¹¹

w Data is automatically protected during power loss

w Industrial temperature operation

A¹⁰

A²

A¹

/CE

DQ⁷

DQ⁶

DQ⁵

DQ⁴

DQ₃

A⁰

DQ₀

DQ¹

DQ₂

V_SS

OPTIONS

w Timing

70 ns

MARKING

- 70

- 85

85 ns

120 ns

-120

-150

28-pin Encapsulated Package

150 ns

URL : www.hbe.co.kr

Rev. 0.0 (April, 2002)

HANBit Electronics Co.,Ltd

12 3 4 5 6 7...9

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与HMN328D相关器件

型号	品牌	获取价格	描述	数据表
HMN328D-120	HANBIT	获取价格	Non-Volatile SRAM MODULE 256Kbit (32K x 8-Bit),28Pin DIP, 5V
HMN328D-120I	HANBIT	获取价格	Non-Volatile SRAM MODULE 256Kbit (32K x 8-Bit),28Pin DIP, 5V
HMN328D-150	HANBIT	获取价格	Non-Volatile SRAM MODULE 256Kbit (32K x 8-Bit),28Pin DIP, 5V
HMN328D-150I	HANBIT	获取价格	Non-Volatile SRAM MODULE 256Kbit (32K x 8-Bit),28Pin DIP, 5V
HMN328D-70	HANBIT	获取价格	Non-Volatile SRAM MODULE 256Kbit (32K x 8-Bit),28Pin DIP, 5V
HMN328D-70I	HANBIT	获取价格	Non-Volatile SRAM MODULE 256Kbit (32K x 8-Bit),28Pin DIP, 5V
HMN328D-85	HANBIT	获取价格	Non-Volatile SRAM MODULE 256Kbit (32K x 8-Bit),28Pin DIP, 5V
HMN328D-85I	HANBIT	获取价格	Non-Volatile SRAM MODULE 256Kbit (32K x 8-Bit),28Pin DIP, 5V
HMN328DLF-70	DLGHANBIT	获取价格	Non-Volatile SRAM MODULE 256Kbit (32K x 8-Bit),28Pin DIP, 5V
HMN328DLF-85	DLGHANBIT	获取价格	Non-Volatile SRAM MODULE 256Kbit (32K x 8-Bit),28Pin DIP, 5V