RP5C01A View Datasheet(PDF) - RICOH Co.,Ltd.
Part Name
Description
MFG CO.
RP5C01A Datasheet PDF : 10 Pages
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RP/RF5C01A
PIN CONFIGURATIONS
• RP5C01A
CS
1
CS
2
ADJ 3
A0
4
A1
5
A2
6
A3
7
RD
8
GND 9
18 Vcc
17 OSCOUT
16 OSCIN
15 ALARM
14 D3
13 D2
12 D1
11 D0
10 WR
• RF5C01A
CS
1
CS
2
ADJ
3
A0
4
A1
5
A2
6
A3
7
RD
8
GND
9
18
Vcc
17
OSCOUT
16
OSCIN
15
ALARM
14
D3
13
D2
12
D1
11
D0
10
WR
PIN DESCRIPTION
Pin No.
Symbol
Function
The CS and CS are used to interface with external devices. Enabled when CS =“H” and
1,2
CS,CS
CS=“L”. The CS is connected to the power down detector in the system power supply
while the CS is connected to the microcomputer.
The ADJ can easily correct seconds without using the CPU. When this pin is set to “H” the
3
ADJ
second digits ranging from 00 to 29 are set to 0, the second digits ranging from 30 to 59 are
set to 0 and minute digits are incremented by 1.
4,5,6,7
A0 to A3
Input pin for the address signal. These pins are connected to the CPU address bus.
Input pin for I/O control. The RD is set to “L” when data is transferred from the
8
RD
RP/RF5C01A to the CPU.
9
GND
Ground pin for the power supply of 0V.
Input pin for I/O control. The WR is set to “L” when data is transferred from the CPU to
10
WR
the RP/RF5C01A.
11,12,13,14
D0 to D3
Bidirectional data bus. Connected to the data bus of the CPU.
The ALARM pin outputs alarm signals and 16Hz and 1Hz clock pulses.
15
ALARM
This pin is an open drain output.
16,17 OSCIN,OSCOUT The OSCIN and OSCOUT are connected to the crystal oscillator of 32.768kHz
18
VCC
Input pin for the power supply of +5V.
2
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