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Datasheet > 微控制器和处理器 > 计时器或实时时钟> BQ4802LYDWRG4
BQ4802LYDWRG4 PDF预览

BQ4802LYDWRG4

更新时间： 2024-11-11 12:42:35
品牌 Logo 应用领域
德州仪器 - TI 计时器或实时时钟微控制器和处理器外围集成电路光电二极管监控双倍数据速率
页数 文件大小 规格书
26页 920K
描述
PARALLEL REAL-TIME CLOCK WITH CPU SUPERVISOR

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中文翻译

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BQ4802LYDWRG4 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：SOIC
包装说明：SOP, SOP28,.4针数：28
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.16
最大时钟频率：0.032 MHz外部数据总线宽度：8
信息访问方法：PARALLEL, DIRECT ADDRESS中断能力：Y
JESD-30 代码：R-PDSO-G28JESD-609代码：e4
长度：17.9 mm湿度敏感等级：1
端子数量：28计时器数量：1
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：SOP
封装等效代码：SOP28,.4封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：260
电源：3/3.3 V认证状态：Not Qualified
座面最大高度：2.65 mm子类别：Timer or RTC
最大压摆率：9 mA最大供电电压：3.6 V
最小供电电压：2.7 V标称供电电压：3.3 V
表面贴装：YES技术：CMOS
温度等级：COMMERCIAL端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL最短时间：SECONDS
处于峰值回流温度下的最长时间：NOT SPECIFIED易失性：NO
宽度：7.5 mmuPs/uCs/外围集成电路类型：TIMER, REAL TIME CLOCK
Base Number Matches：1

BQ4802LYDWRG4 数据手册

 浏览型号BQ4802LYDWRG4的Datasheet PDF文件第2页浏览型号BQ4802LYDWRG4的Datasheet PDF文件第3页浏览型号BQ4802LYDWRG4的Datasheet PDF文件第4页浏览型号BQ4802LYDWRG4的Datasheet PDF文件第5页浏览型号BQ4802LYDWRG4的Datasheet PDF文件第6页浏览型号BQ4802LYDWRG4的Datasheet PDF文件第7页 
bq4802Y  
bq4802LY  
www.ti.com  
SLUS464C – AUGUST 2000 – REVISED JUNE 2002  
PARALLEL REAL-TIME CLOCK WITH CPU SUPERVISOR AND  
EXTERNAL SRAM NONVOLATILE MEMORY BACKUP  
FEATURES  
APPLICATIONS  
D
Real-Time Clock Counts Seconds Through  
D
D
D
D
D
D
Telecommunications Base Stations  
Servers  
Centuries in BCD Format  
– bq4802Y: 5-V Operation  
– bq4802LY: 3.3-V Operation  
Handheld Data Collection Equipment  
Medical Equipment  
D
D
D
D
On-Chip Battery-Backup Switchover Circuit  
With Nonvolatile Control for External SRAM  
Handheld Instrumentation  
Test Equipment  
Less Than 500 nA of Clock Operation Current  
in Backup Mode  
Microprocessor Reset With Push-Button  
Override  
DESCRIPTION  
Independent Watchdog Timer With  
Programmable Time-Out Period  
The bq4802Y/bq4802LY real-time clock is a low-power  
microprocessor peripheral that integrates a time-of-  
day clock, a century-based calendar, and a CPU super-  
visor, with package options including a 28-pin SOIC,  
TSSOP, or SNAPHAT that requires the bq48SH-28x6  
to complete the two-piece module. The bq4802Y/  
bq4802LY is ideal for fax machines, copiers, industrial  
control systems, point-of-sale terminals, data loggers,  
and computers.  
D
Power-Fail Interrupt Warning  
D
Programmable Clock Alarm Interrupt Active  
in Battery-Backup Mode  
D
D
D
Programmable Periodic Interrupt  
Battery-Low Warning  
28-pin SOIC, TSSOP, and SNAPHAT Package  
Options  
5 kΩ  
TYPICAL APPLICATION  
V
bq4802  
CC  
RST  
A0–A3  
ADDRESS BUS  
DATA BUS  
TO µP  
WDO  
INT  
DQ0–DQ7  
CS  
CMOS SRAM  
FROM  
ADDRESS  
DECODE  
LOGIC  
62256L  
A0–A3  
ADDRESS BUS  
CE  
IN  
DQ0–DQ7  
DATA BUS  
V
V
OUT  
OUT  
CC  
CE  
OE  
FROM µP  
I/O LINE  
WDI  
CE  
WR  
OE  
READ/  
WRITE  
CONTROL  
FROM µP  
WE  
X1  
X2  
32.768 kHz  
CRYSTAL  
BC  
3 V  
LITHIUM  
CELL  
V
SS  
Pleasebe aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments  
semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date. Products  
conform to specifications per the terms of Texas Instruments standard warranty.  
Production processing does not necessarily include testing of all parameters.  
Copyright 2002, Texas Instruments Incorporated  
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中文翻译

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BQ4802LYDWRG4 替代型号

型号 品牌 替代类型 描述 数据表
BQ4802LYDWR TI

完全替代

 PARALLEL REAL-TIME CLOCK WITH CPU SUPERVISOR
BQ4802LYDWG4 TI

完全替代

 PARALLEL REAL-TIME CLOCK WITH CPU SUPERVISOR
BQ4802LYDW TI

完全替代

 PARALLEL REAL-TIME CLOCK WITH CPU SUPERVISOR

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