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參數(shù)資料
| 型號： | S-3531A |
| 廠商： | Seiko Instruments Inc. |
| 英文描述： | CMOS Real-Time Clock IC Supporting an IIC-Bus(支持IIC-BUS的CMOS實時時鐘芯片) |
| 中文描述： | CMOS實時時鐘IC支持一個IIC總線（支持IIC總線的實時時鐘芯片的CMOS） |
| 文件頁數(shù)： | 3/31頁 |
| 文件大?。?/td> | 185K |
| 代理商： | S-3531A |
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REAL-TIME CLOCKk
S-3531A
2
Seiko Instruments Inc.
Pin Assignment
Description of Terminals
Terminal
Num.
Abbreviation
Description
Configuration
1
INT1
Alarm interrupt 1 output terminal.
Depending on the mode set by the INT1 register
and status register, it outputs low or Clock when
time is reached. It is disabled by rewriting the
status register.
N-channel open drain output
(No protective diode on the
side of VDD)
2
XIN
3
XOUT
4
VSS
Negative power supply terminal (GND)
5
F
32K
32,768 Hz clock output terminal.
This clock is always being output and cannot be
controlled by command.
N-channel open drain output
(No protective diode on the
side of VDD)
6
SCL
Serial clock input terminal.
Follow the specification with great care to the
rising/falling time of the SCL signal because the
signal is treated at its rising/falling edge.
CMOS input (No protective
diode on the side of VDD)
7
SDA
Serial data input/output terminal.
It is normally used with pulled up to VDD charge
via resistance and wired or connected to other
devices with open drain or open collector output
N-channel open drain output
(No protective diode on the
side of VDD)
CMOS input
8
VDD
Positive power supply terminal.
Figure 2
Pin assignment
8-Pin SSOP
Top view
XOUT
VSS
6
5
8
7
3
4
1
2
SDA
SCL
F
32K
VDD
INT1
XIN
Table 1 Description of terminals
Crystal oscillator connect terminal (32,768 Hz)
(Internal Cd, External Cg)
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