BQ2203APN

更新时间： 2025-07-19 22:39:39

品牌	Logo	应用领域
德州仪器 - TI		电源电路电池电源管理电路监视器光电二极管控制器
页数	文件大小	规格书
12页	83K
描述
NV Controller With Battery Monitor

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中文翻译

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技术参数
数据手册

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BQ2203APN 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	零件包装代码：	DIP
包装说明：	DIP, DIP16,.3	针数：	16
Reach Compliance Code：	not_compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.44
Is Samacsys：	N	可调阈值：	YES
模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT	JESD-30 代码：	R-PDIP-T16
长度：	19.18 mm	信道数量：	1
功能数量：	1	端子数量：	16
最高工作温度：	70 °C	最低工作温度：
封装主体材料：	PLASTIC/EPOXY	封装代码：	DIP
封装等效代码：	DIP16,.3	封装形状：	RECTANGULAR
封装形式：	IN-LINE	峰值回流温度（摄氏度）：	NOT SPECIFIED
电源：	5 V	认证状态：	Not Qualified
座面最大高度：	4.57 mm	子类别：	Power Management Circuits
最大供电电流 (Isup)：	6 mA	最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：	4.5 V	标称供电电压 (Vsup)：	5 V
表面贴装：	NO	技术：	CMOS
温度等级：	COMMERCIAL	端子形式：	THROUGH-HOLE
端子节距：	2.54 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	7.62 mm
Base Number Matches：	1

BQ2203APN 数据手册

bq2203A

NV Controller With Battery Monitor

Power for the external SRAMs is

Features

General Description

switched from the V

supply to the

battery-backup supply as V

de-

The CMOS bq2203A SRAM Nonvolatile

Controller With Battery Monitor pro-

vides all the necessary functions for con-

verting one or two banks of standard

CMOS SRAM in t o n on vola t ile

read/write memory. The bq2203A is

compatible with the Personal Computer

Memory Card International Association

(P CMCIA) r ecom m en da t ion s for

battery-backed static RAM memory

cards.

Power monitoring and switching

for nonvolatile control of SRAMs

cays. On a subsequent power-up, the

s u p p ly is a u t om a t ica lly

OU T

switched from the backup supply to

the V supply. The external SRAMs

Write-protect control

Battery-low and battery-fail indi-

cators

are write-protected until a power-

valid condition exists. The reset out-

put provides power-fail and power-on

resets for the system. The battery

monitor indicates battery-low and

battery-fail conditions.

Reset output for system power-on

reset

Input decoder for control of up to

2 banks of SRAM

During power-valid operation, the

in pu t decoder select s on e of t wo

banks of SRAM.

A precision comparator monitors the 5V

input for an out-of-tolerance condi-

3-volt primary cell input

tion. When out of tolerance is detected,

the two conditioned chip-enable outputs

are forced inactive to write-protect

banks of SRAM.

3-volt rechargeable battery in-

put/output

Pin Connections

Pin Names

V_OUT

RST

THS

CE_CON1

CE_CON2

Supply output

Reset output

Threshold select input

chip-enable active low input

Conditioned chip-enable outputs

OUT

Bank select input

CON1

CON2

BCF

BCL

BC_P

BC_S

Battery fail push-pull output

Battery low push-pull output

3V backup supply input

3V rechargeable backup supply input/output

No connect

BCF

BCL

THS

RST

V_CC

V_SS

5-volt supply input

Ground

16-Pin Narrow DIP or SOIC

PN220301.eps

Functional Description

Two banks of CMOS static RAM can be battery-backed us-

If THS is tied to V , power-fail detection occurs at

4.37V typical for 10% supply operation. The THS pin

must be tied to V or V for proper operation.

ing the V

and the conditioned chip-enable output pins

OUT

from the bq2203A. As the voltage input V

slews down

during a power failure, the two conditioned chip-enable

ou t pu t s, CE a n d CE , a r e for ced in a ct ive

independent of the chip-enable input CE.

If a memory access is in process to any of the two exter-

nal banks of SRAM during power-fail detection, that

memory cycle continues to completion before the memory

is write-protected. If the memory cycle is not terminated

CON1

CON2

This activity unconditionally write-protects external SRAM

as V

falls to an out-of-tolerance threshold V . V

PFD PFD

within time t

(150µs maximum), the two chip-enable

WPT

selected by the threshold select input pin, THS. If THS is

outputs are unconditionally driven high, write-protecting

the controlled SRAMs.

tied to V , the power-fail detection occurs at 4.62V typical

for 5% supply operation.

Nov. 1994 B

12 3 4 5 6 7...12

中文翻译

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与BQ2203APN相关器件

型号	品牌	获取价格	描述	数据表
BQ2203APN-N	TI	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP16, PLASTIC, DIP-16
BQ2203APNN	TI	获取价格	NV Controller With Battery Monitor
BQ2203ASN	TI	获取价格	NV Controller With Battery Monitor
BQ2203ASN-N	TI	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, SOIC-16
BQ2203ASNN	TI	获取价格	NV Controller With Battery Monitor
BQ2203ASNTR	TI	获取价格	SRAM Nonvolatile Controller IC for 2 SRAM Banks w/ Battery Monitor 16-SOIC 0 to 70
BQ2204	TI	获取价格	X4 SRAM Nonvolatile Controller Unit
BQ2204A	TI	获取价格	X4 SRAM Nonvolatile Controller Unit
BQ2204APN	TI	获取价格	X4 SRAM Nonvolatile Controller Unit
BQ2204APN-N	TI	获取价格	暂无描述

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