RF5C15 View Datasheet(PDF) - RICOH Co.,Ltd.
Part Name
Description
Manufacturer
RF5C15 Datasheet PDF : 12 Pages
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RP/RF/RJ5C15
PIN CONFIGURATIONS
• RP5C15 (18pin DIP)
• RF5C15 (18pin SOP)
• RJ5C15 (28pin PLCC)
CS
1
CS
2
CLKOUT 3
A0
4
A1
5
A2
6
A3
7
RD
8
GND
9
18 VCC
17 OSCOUT
16 OSCIN CS
1
15 ALARM CS
2
14 D3
CLKOUT
3
A0
4
13 D2
A1
5
12 D1
A2
6
11 D0
A3
7
10 WR
RD
8
GND
9
18
VCC
17
OSCOUT NC
4 3 2 1 28 27 26
5
25 NC
16
OSCIN A0 6
24 ALARM
15
ALARM NC 7
A1 8
14
D3
NC 9
23 NC
22 D3
21 NC
13
D2
12
D1
A2 10
20 D2
NC 11
19 NC
12 13 14 15 16 17 18
11
D0
10
WR
PIN DESCRIPTION
Pin No.
1,2
3
4,5,6,7
8
9
10
11,12,13,14
15
16
17
18
Symbol
CS, CS
CLKOUT
A0 to A3
RD
GND
WR
D0 to D3
ALARM
OSCIN
OSCOUT
VCC
Function
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
assembly while the CS is connected to the microcomputer.
Output pin for reference clock pulse and an open drain output. Selectable from 8 modes
based on the setting of the clock select register as shown in the separate table.
Input pins 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
RP/RF/RJ5C15 to the CPU.
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
the RP/RF/RJ5C15.
Bidirectional data bus. Connected to the data bus of the CPU.
The ALARM outputs alarm signal and 16Hz and 1Hz clock pulses. This pin is an open
drain output.
The OSCIN and OSCOUT are connected to the 32.768kHz crystal oscillator.
32.768kHz
Input pin for the power supply of +5V.
*) Pin numbers shown are for the RP5C15 and the RF5C15. These are different for the RJ5C15.
For specific pin number see the “PIN CONFIGURATIONS”.
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