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參數(shù)資料
| 型號(hào)： | RP5C01A |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | XO, clock |
| 英文描述： | REAL-TIME CLOCK WITH INTERNAL RAM |
| 中文描述： | 0 TIMER(S), REAL TIME CLOCK, PDIP18 |
| 封裝： | DIP-18 |
| 文件頁(yè)數(shù)： | 2/10頁(yè) |
| 文件大小： | 124K |
| 代理商： | RP5C01A |
RP/RF5C01A
2
PIN CONFIGURATIONS
CS
CS
ADJ
A0
A
1
A
2
A
3
RD
GND
18
17
16
15
14
13
12
11
10
Vcc
OSCOUT
OSCIN
ALARM
D
3
D
2
D
1
D
0
WR
1
2
3
4
5
6
7
8
9
CS
CS
ADJ
A
0
A
1
A
2
A
3
RD
GND
18
17
16
15
14
13
12
11
10
Vcc
OSCOUT
OSCIN
ALARM
D
3
D
2
D
1
D
0
WR
1
2
3
4
5
6
7
8
9
RP5C01A
RF5C01A
PIN DESCRIPTION
Pin No.
Symbol
Function
1,2
CS,CS
The CS and CS are used to interface with external devices. Enabled when CS =“H” and
CS=“L”. The CS is connected to the power down detector in the system power supply
while the CS is connected to the microcomputer.
3
ADJ
The ADJ can easily correct seconds without using the CPU. When this pin is set to “H” the
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
A
0
to A
3
Input pin for the address signal. These pins are connected to the CPU address bus.
8
RD
Input pin for I/O control. The RD is set to “L” when data is transferred from the
RP/RF5C01A to the CPU.
9
GND
Ground pin for the power supply of 0V.
10
WR
Input pin for I/O control. The WR is set to “L” when data is transferred from the CPU to
the RP/RF5C01A.
11,12,13,14
D
0
to D
3
Bidirectional data bus. Connected to the data bus of the CPU.
15
ALARM
The ALARM pin outputs alarm signals and 16Hz and 1Hz clock pulses.
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
V
CC
Input pin for the power supply of +5V.
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