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DS1384 PDF预览

DS1384

更新时间: 2024-11-15 22:50:47
品牌 Logo 应用领域
达拉斯 - DALLAS 计时器或实时时钟微控制器和处理器外围集成电路双倍数据速率
页数 文件大小 规格书
17页 309K
描述
Watchdog Timekeeping Controller

DS1384 技术参数

生命周期:TransferredReach Compliance Code:unknown
风险等级:5.69Is Samacsys:N
外部数据总线宽度:8信息访问方法:PARALLEL, DIRECT ADDRESS
JESD-30 代码:S-PQFP-G44端子数量:44
计时器数量:1封装主体材料:PLASTIC/EPOXY
封装形状:SQUARE封装形式:FLATPACK
认证状态:Not Qualified标称供电电压:5 V
表面贴装:YES技术:CMOS
端子形式:GULL WING端子位置:QUAD
uPs/uCs/外围集成电路类型:TIMER, REAL TIME CLOCKBase Number Matches:1

DS1384 数据手册

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DS1384  
Watchdog Timekeeping Controller  
www.dalsemi.com  
FEATURES  
PIN ASSIGNMENT  
Keeps track of hundredths of seconds,  
seconds, minutes, hours, days, date of the  
month, months, and years with leap year  
compensation valid up to 2100  
Watchdog timer restarts an out-of-control  
processor  
Alarm function schedules real-time related  
activities  
Programmable interrupts and square wave  
outputs  
Bytewide RAM-like access  
50 bytes of on board user RAM  
Greater than 10 years timekeeping and data  
retention in the absence of power with small  
lithium coin cells  
Supports up to 128k x 8 of external static RAM  
All timekeeping registers and on board RAM  
are individually addressable via the address  
and data bus  
44  
34  
1
33  
INTB/(INTB)  
A15  
VBAT1  
WE  
A13  
A8  
NC  
A14  
A12  
A7  
A6  
A5  
A4  
A9  
A11  
OE  
A3  
A2  
A1  
A10  
CE  
OER  
23  
11  
12  
22  
PIN DESCRIPTION  
ORDERING INFORMATION  
INTA  
- Interrupt Output A (open drain)  
DS 1384FP-12  
44-Pin FP  
INTB (INTB) - Interrupt Output B (open drain)  
A0-A16  
- Address Inputs  
DQ0-DQ7  
- Data Input/Output  
CE  
OE  
- Chip Enable  
- Output Enable  
WE  
- Write Enable  
VCC  
- +5V Input  
GND  
NC  
SQW  
X1, X2  
- Ground  
- No Connection  
- Square Wave Output  
- 32.768 kHz Crystal Connections  
PFO  
CEO  
- Power Fail Output  
- Chip Enable RAM  
OER  
- Output Enable RAM  
- Voltage Out  
- +3V Battery Input  
- +3V Battery Input  
VCCO  
VBAT1  
VBAT2  
1 of 17  
091300  

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