5秒后页面跳转
捷配首页

Datasheet > BQ4285LSNTR
BQ4285LSNTR PDF预览

BQ4285LSNTR

更新时间： 2024-09-10 20:04:35
品牌 Logo 应用领域
德州仪器 - TI 时钟光电二极管外围集成电路
页数 文件大小 规格书
29页 1628K
描述
IC 1 TIMER(S), REAL TIME CLOCK, PDSO24, 0.300 INCH, PLASTIC, SOIC-24, Timer or RTC

阅读下载

中文翻译

获取价格

BQ4285LSNTR 技术参数

生命周期：Obsolete零件包装代码：SOIC
包装说明：SOP,针数：24
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.72
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, MUXED BUSJESD-30 代码：R-PDSO-G24
端子数量：24计时器数量：1
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
认证状态：Not Qualified最大供电电压：3.6 V
最小供电电压：2.7 V标称供电电压：3.15 V
表面贴装：YES技术：CMOS
温度等级：INDUSTRIAL端子形式：GULL WING
端子位置：DUALuPs/uCs/外围集成电路类型：TIMER, REAL TIME CLOCK
Base Number Matches：1

BQ4285LSNTR 数据手册

 浏览型号BQ4285LSNTR的Datasheet PDF文件第2页浏览型号BQ4285LSNTR的Datasheet PDF文件第3页浏览型号BQ4285LSNTR的Datasheet PDF文件第4页浏览型号BQ4285LSNTR的Datasheet PDF文件第5页浏览型号BQ4285LSNTR的Datasheet PDF文件第6页浏览型号BQ4285LSNTR的Datasheet PDF文件第7页 
bq4285  
(
)
Real-Time Clock RTC With NVRAM Control  
➤ Calendar in day of the week, day of  
General Description  
the month, months, and years, with  
Features  
➤ Direct clock/calendar replace-  
ment for IBM® AT-compatible  
computers and other applications  
automatic leap-year adjustment  
The CMOS bq4285 is a low-power  
microprocessor peripheral providing  
a time-of-day clock and 100-year cal-  
endar with alarm features and bat-  
tery operation. Other features include  
three maskable interrupt sources,  
square wave output, and 114 bytes of  
general nonvolatile storage.  
➤ Time of day in seconds, minutes,  
and hours  
➤ Functionally compatible with the  
- 12- or 24-hour format  
DS1285  
- Optional daylight saving  
- Closely matches MC146818A  
adjustment  
pin configuration  
➤ BCD or binary format for clock  
The bq4285 write-protects the clock,  
calendar, and storage registers dur-  
ing power failure. A backup battery  
then maintains data and operates  
the clock and calendar.  
➤ 114 bytes of general nonvolatile  
and calendar data  
storage  
➤ Programmable square wave out-  
➤ Automatic backup and write-  
put  
protect control to external SRAM  
➤ Three individually maskable in-  
➤ 160 ns cycle time allows fast bus  
The bq4285 is a fully compatible real-  
time clock for IBM AT-compatible com-  
puters and other applications. The only  
external components are a 32.768kHz  
crystal and a backup battery.  
terrupt event flags:  
operation  
- Periodic rates from 122 µs to  
500 ms  
- Time-of-day alarm once per  
The bq4285 integrates a battery-  
backup controller to make a standard  
CMOS SRAM nonvolatile during  
power-fail conditions. During power-  
fail, the bq4285 automatically write-  
protects the external SRAM and pro-  
vides a VCC output sourced from the  
clock backup battery.  
second to once per day  
➤ Less than 0.5 µA load under bat-  
tery operation  
- End-of-clock update cycle  
➤ 24-pin plastic DIP or SOIC  
➤ 14 bytes for clock/calendar and  
control  
Pin Connections  
Pin Names  
AD0–AD7  
Multiplexed address/data  
input/output  
MOT  
Bus type select input  
CS  
Chip select input  
V
24  
1
V
CC  
OUT  
X
1
23  
22  
2
3
SQW  
CE  
AS  
DS  
R/W  
Address strobe input  
Data strobe input  
Read/write input  
X
2
OUT  
4
CE  
AD  
0
21  
20  
19  
18  
17  
16  
15  
14  
13  
IN  
5
BC  
AD  
1
AD  
2
AD  
3
AD  
4
AD  
5
AD  
6
INT  
Interrupt request output  
Reset input  
6
INT  
RST  
DS  
V
SS  
R/W  
RST  
7
SQW  
BC  
X1–X2  
Square wave output  
3V backup cell input  
Crystal inputs  
8
9
10  
11  
12  
AS  
CS  
AD  
7
NC  
No connect  
V
SS  
CEIN  
CEOUT  
VOUT  
VCC  
RAM chip enable input  
RAM chip enable output  
Supply output  
28-Pin PLCC No longer available  
24-Pin DIP or SOIC  
PN428501.eps  
+5V supply  
VSS  
Ground  
SLUS002A JUNE 1991 - REVISED MAY 2004  
1
1234567...29

中文翻译

下载PDF

与BQ4285LSNTR相关器件

型号 品牌 获取价格 描述 数据表
BQ4285LSTR TI

获取价格

 		Enhanced RTC With NVRAM Control
BQ4285P- TI

获取价格

 		Real-Time Clock RTC With NVRAM Control
BQ4285P-SB2 TI

获取价格

 		Real-Time Clock RTC With NVRAM Control
BQ4285Q TI

获取价格

 		1 TIMER(S), REAL TIME CLOCK, PQCC28
BQ4285Q- TI

获取价格

 		Real-Time Clock RTC With NVRAM Control
BQ4285S- TI

获取价格

 		Real-Time Clock RTC With NVRAM Control
BQ4285S-SB2 TI

获取价格

 		Real-Time Clock RTC With NVRAM Control
BQ4285S-SB2TR TI

获取价格

 		Real-Time Clock RTC With NVRAM Control
BQ4287 TI

获取价格

 		Real-Time Clock Module With NVRAM Control
BQ4287EMT ETC

获取价格

 		Real-Time Clock

与BQ4285LSNTR相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证