参数资料
型号: RV5C387A-F
厂商: RICOH COMPANY LTD
元件分类: 时钟/数据恢复及定时提取
英文描述: 0 TIMER(S), REAL TIME CLOCK, PDSO10
封装: 4 X 2.90 MM, 1.20 MM HEIGHT, SSOP-10
文件页数: 23/49页
文件大小: 330K
代理商: RV5C387A-F
3
RV5C387A
PIN DESCRIPTIONS
Pin No. Symbol
Item
Description
2
SCL
Serial Clock Line
This pin is used to input shift clock pulses to synchronize data input/output to and
from the SDA pin with this clock. Allows a maximum input voltage of 5.5 volts
regardless of supply voltage.
3
SDA
Serial Data Line
This pin inputs and outputs written or read data in synchronization with shift clock
pulses from the SCL pin. Allows a maximum input voltage of 5.5 volts regardless
of supply voltage.
6INTRA
Interrupt Output A
This pin outputs periodic interrupt pulses to the CPU. This pin is off when power
is activated from 0V. This pin functions as an Nch open drain output.
7
INTRB
Interrupt Output B
This pin outputs alarm interrupt (ALARM_W) to the CPU. This pin is off when
power is activated from 0V. This pin functions as an Nch open drain output.
4
INTRC
Interrupt Output C
This pin outputs alarm interrupt (ALARM_D) to the CPU. This pin is off when
power is activated from 0V. This pin functions as an Nch open drain output.
1
32KOUT
32-kHz Clock Output
The 32KOUT pin is used to output 32.768-kHz clock pulses. Enabled at power-on
from 0 volts. Nch. open drain output. The RV5C387A is designed to be disable 32-
kHz clock output in response to a command from the host computer.
The OSCIN and OSCOUT pins are used to connect the 32.768-kHz crystal
oscillator (with all other oscillation circuit components built into the RV5C387A).
The VDD pin is connected to the power supply. The VSS pin is grounded.
9
OSCIN
Oscillatory Circuit
8
OSCOUT
Input/Output
10
VDD
Positive Power Supply Input
5
VSS
Negative Power Supply Input
相关PDF资料
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RX-4571LC REAL TIME CLOCK, PDSO12
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