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BQ4011-150 PDF预览

BQ4011-150

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
德州仪器 - TI		静态存储器
页数	文件大小	规格书
13页	755K
描述
32Kx8 Nonvolatile SRAM

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BQ4011-150 数据手册

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bq4011/bq4011Y

32Kx8 Nonvolatile SRAM

At t his tim e t he integr a l ener gy

Features

➤ Data retention in the absence of

General Description

source is switched on to sustain the

memory until after V_CCreturns valid.

The CMOS bq4011 is a nonvolatile

262,144-bit static RAM organized as

32,768 words by 8 bits. The integral

control circuitry and lithium energy

source provide reliable nonvolatility

coupled with th e unlim ited write

cycles of standard SRAM.

power

The bq4011 uses an extremely low

s t a n dby cu r r en t CMOS SRAM,

coupled with a small lithium coin cell

to provide nonvolatility without long

write-cycle times and the write-cycle

limitations associated with EEPROM.

➤ Automatic write-protection

during power-up/power-down

cycles

➤ Industry-standard 28-pin 32K x

8 pinout

Th e con tr ol cir cu it r y con s ta n t ly

monitors the single 5V supply for an

ou t -of-t oler a n ce con dit ion . Wh en

V_CCfalls out of tolerance, the SRAM

is unconditionally write-protected to

prevent inadvertent write operation.

The bq4011 requires no external cir-

cuitry and is socket-compatible with

industry-standard SRAMs and most

EPROMs and EEPROMs.

➤ Conventional SRAM operation;

unlimited write cycles

➤ 10-year minimum data retention

in absence of power

➤ Battery internally isolated until

power is applied

Pin Connections

Pin Names

Block Diagram

A₀–A₁₄

Address inputs

DQ₀–DQ₇Data input/output

CE

Chip enable input

Output enable input

Write enable input

+5 volt supply input

Ground

OE

WE

V_CC

V_SS

Selection Guide

Maximum

Access

Negative

Supply

Maximum

Access

Negative

Supply

Part

Part

Number

Time (ns)

Tolerance

Number

Time (ns)

Tolerance

bq4011Y-70

70

-10%

-10%

-10%

-10%

bq4011 -100

bq4011Y -100

bq4011Y -150

bq4011Y -200

100

150

200

-5%

-5%

-5%

100

150

200

bq4011 -150

bq4011 -200

Aug. 1993 C

1

12 3 4 5 6 7...13

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与BQ4011-150相关器件

型号	品牌	描述	获取价格	数据表
BQ4011-200	TI	32Kx8 Nonvolatile SRAM	获取价格
BQ4011LYMA-70N	TI	IC 32K X 8 NON-VOLATILE SRAM MODULE, 70 ns, PDMA28, ROHS COMPLIANT, PLASTIC, DIP-28, Stati	获取价格
BQ4011MA-100	TI	32Kx8 Nonvolatile SRAM	获取价格
BQ4011MA-100N	TI	32Kx8 Nonvolatile SRAM	获取价格
BQ4011MA-120	TI	128Kx8 Nonvolatile SRAM	获取价格
BQ4011MA-120N	TI	128Kx8 Nonvolatile SRAM	获取价格

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