DS1345W

更新时间： 2024-01-19 04:31:15

品牌	Logo	应用领域
达拉斯 - DALLAS		电池内存集成电路静态存储器监控
页数	文件大小	规格书
12页	250K
描述
3.3V 1024k Nonvolatile SRAM with Battery Monitor

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技术参数
数据手册

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DS1345W 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Active	包装说明：	,
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.32.00.41	风险等级：	5.44
Base Number Matches：	1

DS1345W 数据手册

DS1345W

3.3V 1024k Nonvolatile SRAM

with Battery Monitor

www.maxim-ic.com

FEATURES

PIN ASSIGNMENT

C 10 years minimum data retention in the

absence of external power

C Data is automatically protected during power

loss

A15

A16

RST

V_CC

A14

A13

A12

A11

A10

C Power supply monitor resets processor when

_CCpower loss occurs and holds processor in

reset during V_CCramp-up

DQ7

DQ6

DQ5

DQ4

DQ3

DQ2

DQ1

DQ0

GND

C Battery monitor checks remaining capacity

daily

C Read and write access times as fast as 100 ns

C Unlimited write cycle endurance

C Typical standby current 50 µA

C Upgrade for 128k x 8 SRAM, EEPROM or

Flash

V_BAT

GND

34-Pin PowerCap Module (PCM)

(Uses DS9034PC PowerCap)

C Lithium battery is electrically disconnected to

retain freshness until power is applied for the

first time

PIN DESCRIPTION

A0-A16

DQ0-DQ7

RST

- Address Inputs

C Optional industrial temperature range of

-40°C to +85°C, designated IND

C PowerCap Module (PCM) package

- Directly surface-mountable module

- Replaceable snap-on PowerCap provides

lithium backup battery

- Data In/Data Out

- Chip Enable

- Write Enable

- Output Enable

- Reset Output

- Battery Warning Output

- Power (+3.3 Volts)

- Ground

- Standardized pinout for all nonvolatile

SRAM products

V_CC

GND

- Detachment feature on PowerCap allows

easy removal using a regular screwdriver

- No Connect

DESCRIPTION

The DS1345W 3.3V 1024k Nonvolatile SRAM is a 1,048,576-bit, fully static, nonvolatile SRAM

organized as 131,072 words by 8 bits. Each NV SRAM has a self-contained lithium energy source and

control circuitry, which constantly monitors V_CCfor an out-of-tolerance condition. When such a condition

occurs, the lithium energy source is automatically switched on and write protection is unconditionally

enabled to prevent data corruption. Additionally, the DS1345W has dedicated circuitry for monitoring the

status of V_CCand the status of the internal lithium battery. DS1345W devices in the PowerCap Module

package are directly surface mountable and are normally paired with a DS9034PC PowerCap to form a

complete Nonvolatile SRAM module. The devices can be used in place of 128k x 8 SRAM, EEPROM or

Flash components.

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与DS1345W相关器件

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DS1345W-150	MAXIM	Non-Volatile SRAM Module, 128KX8, 150ns, CMOS	获取价格
DS1345W-150-IND	DALLAS	Non-Volatile SRAM Module, 128KX8, 150ns, CMOS,	获取价格
DS1345W-150-IND	MAXIM	Non-Volatile SRAM Module, 128KX8, 150ns, CMOS	获取价格
DS1345W-IND	MAXIM	暂无描述	获取价格
DS1345WP-100	DALLAS	3.3V 1024k Nonvolatile SRAM with Battery Monitor	获取价格
DS1345WP-100	ROCHESTER	128KX8 NON-VOLATILE SRAM MODULE, 100ns, DMA34, POWERCAP MODULE-34	获取价格