参数资料
型号: DS1687-3IND
厂商: Maxim Integrated Products
文件页数: 1/34页
文件大小: 0K
描述: IC RTC 3V 64-BIT Y2K 24-EDIP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 14
类型: 时钟/日历
特点: 警报器,NVSRAM,方波输出,Y2K
存储容量: 242B
时间格式: HH:MM:SS(12/24 小时)
数据格式: YY-MM-DD-dd
接口: 并联
电源电压: 2.7 V ~ 3.7 V
电压 - 电源,电池: 2.5 V ~ 3.7 V
工作温度: -40°C ~ 85°C
安装类型: 通孔
封装/外壳: 24-DIP 模块(0.600",15.24mm)
供应商设备封装: 24-EDIP
包装: 管件
1 of 34
19-5215; Rev 10/12
FEATURES
Incorporates Industry-Standard DS1287 PC
Clock plus Enhanced Features Such as Y2K
Compliant
+3V or +5V Operation
64-Bit Silicon Serial Number
Power-Control Circuitry Supports System
Power-On from Date/Time Alarm or Key
Closure
32kHz Output for Power Management
Crystal-Select Bit Allows RTC to Operate with
6pF or 12.5pF Crystal
SMI Recovery Stack
242 Bytes Battery-Backed NV RAM
Auxiliary Battery Input
RAM Clear Input
Century Register
Date Alarm Register
Compatible with Existing BIOS for Original
DS1287 Functions
Available as Chip (DS1685) or Stand-Alone
Encapsulated DIP (EDIP) with Embedded
Battery and Crystal (DS1687)
Timekeeping Algorithm Includes Leap-Year
Compensation Valid Through 2099
Underwriters Laboratory (UL) Recognized
APPLICATIONS
Embedded Systems
Utility Meters
Security Systems
Network Hubs, Bridges, and Routers
PIN CONFIGURATIONS
PLCC
AD0
AD1
AD2
AD3
AD4
AD5
RCLR
VBAT
IRQ
KS
RD
GND
WR
25
24
23
22
21
20
19
5
6
7
8
9
10
11
4
3
2
1 28 27 26
12 13 14 15 16 17 18
N.C.
X1
X2
PWR N.C. V
CC
V
BAU
X
S
Q
W
A
D6 N.C. AD7 GN
D
CS ALE N.C.
DS1685Q
PDIP (0.600″)/
SO (0.300″)/
TSSOP (0.173″)
1
2
3
4
5
6
7
8
9
10
24
23
22
21
20
19
18
17
16
15
VCC
SQW
VBAUX
RCLR
VBAT
IRQ
KS
RD
GND
WR
PWR
X1
X2
AD0
AD1
AD2
AD3
AD4
AD5
AD6
11
12
14
13
AD7
GND
ALE
CS
DS1685/
DS1685S/
DS1685E
EDIP (0.740″)
1
2
3
4
5
6
7
8
9
10
24
23
22
21
20
19
18
17
16
15
VCC
SQW
VBAUX
RCLR
N.C.
IRQ
KS
RD
N.C.
WR
PWR
N.C.
AD0
AD1
AD2
AD3
AD4
AD5
AD6
11
12
14
13
AD7
GND
ALE
CS
DS1687
TOP VIEW
DS1685/DS1687
3V/5V Real-Time Clocks
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