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DS17885E-5 PDF预览

DS17885E-5

更新时间: 2024-11-17 23:16:31
品牌 Logo 应用领域
达拉斯 - DALLAS 外围集成电路光电二极管时钟
页数 文件大小 规格书
38页 408K
描述
3V/5V Real-Time Clock

DS17885E-5 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:TSOP-28Reach Compliance Code:unknown
风险等级:5.7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 BUS
中断能力:YJESD-30 代码:R-PDSO-G28
JESD-609代码:e0端子数量:28
计时器数量:1片上数据RAM宽度:8
最高工作温度:70 °C最低工作温度:
最大输出时钟频率:0.032768 MHz封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装等效代码:TSSOP28,.53,22
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
电源:5 V认证状态:Not Qualified
RAM(字数):8306子类别:Timer or RTC
最大压摆率:50 mA最大供电电压:5.5 V
最小供电电压:4.5 V标称供电电压:5 V
表面贴装:YES技术:CMOS
温度等级:COMMERCIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:GULL WING端子节距:0.55 mm
端子位置:DUAL最短时间:SECONDS
易失性:YESuPs/uCs/外围集成电路类型:TIMER, REAL TIME CLOCK
Base Number Matches:1

DS17885E-5 数据手册

 浏览型号DS17885E-5的Datasheet PDF文件第2页浏览型号DS17885E-5的Datasheet PDF文件第3页浏览型号DS17885E-5的Datasheet PDF文件第4页浏览型号DS17885E-5的Datasheet PDF文件第5页浏览型号DS17885E-5的Datasheet PDF文件第6页浏览型号DS17885E-5的Datasheet PDF文件第7页 
DS17885/DS17887  
3V/5V Real-Time Clock  
www.maxim-ic.com  
FEATURES  
PIN ASSIGNMENT  
Incorporates industry standard DS1287 PC clock  
plus enhanced features:  
1
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
VCC  
PWR  
X1  
SQW  
2
3
4
5
6
7
8
9
10  
C Y2K compliant  
VBAUX  
X2  
C +3V or +5V operation  
RCLR  
VBAT  
IRQ  
AD0  
AD1  
AD2  
AD3  
AD4  
AD5  
AD6  
AD7  
C SMI recovery stack  
C 64-bit silicon serial number  
C Power-control circuitry supports system  
power-on from date/time alarm or key  
closure  
KS  
RD  
GND  
WR  
ALE  
11  
12  
C 32kHz output on power-up  
C Crystal select bit allows RTC to operate with  
6pF or 12.5pF crystal  
CS  
GND  
DS17885 24-Pin DIP  
DS17885S 24-Pin SO  
C 114 bytes user NV RAM  
C Auxiliary battery input  
1
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
VCC  
PWR  
C 8kB additional NV RAM  
C RAM clear input  
NC  
NC  
SQW  
2
3
4
5
6
7
8
9
10  
VBAUX  
C Century register  
RCLR  
AD0  
AD1  
AD2  
AD3  
AD4  
AD5  
AD6  
AD7  
NC  
C Date alarm register  
IRQ  
KS  
C Compatible with existing BIOS for original  
DS1287 functions  
RD  
C Available as chip (DS17885) or standalone  
module with embedded battery and crystal  
(DS17887)  
NC  
WR  
ALE  
11  
12  
CS  
GND  
C Timekeeping algorithm includes leap-year  
compensation valid up to 2100  
C Underwriters Laboratory (UL) recognized  
DS17887 24-Pin  
Encapsulated Package  
TYPICAL OPERATING CIRCUIT  
IRQ  
VBAT  
RCLR  
VBAUX  
SQW  
VCC  
VCC  
PWR  
X1  
1
2
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
KS  
RD  
3
GND  
WR  
4
5
ALE  
CS  
6
7
GND  
GND  
AD7  
AD6  
NC  
8
9
X2  
10  
11  
12  
13  
14  
NC  
ADO  
AD1  
AD5  
AD4  
AD3  
AD2  
DS17885E 28-Pin TSOP  
1 of 38  
050802  

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