MSM64169 Datasheet, PDF (6/25 Pages) OKI electronic componets – Built-in Dual-slope type A/D Converter and LCD Driver 4-Bit Microcontroller

¡ Semiconductor
MSM64169
Basic Functions (Continued)
Function
Ports
Buzzer
A/D
Converter
Pin Pad Symbol Type
Description
9
8 P0.0 I/O 4-bit I/O port (P0): each bit can be configured to be an
10 9 P0.1 I/O input/output, pull-up/pull-down resistor input/high impedance
12 10 P0.2 I/O input, or NMOS open drain output/CMOS output by port 0 control
registers 0-3 (P00CON-P03CON). An external interrupt function is
14 11 P0.3 I/O
assigned to each pin.
16 12 P1.0 I/O 4-bit I/O port (P1): each bit can be configured to be an
17 13 P1.1 I/O input/output, pull-up/pull-down resistor input/high impedance
19 14 P1.2 I/O input, or NMOS open drain output/CMOS output by port 1 control
registers 0-3 (P10CON-P13CON). An external interrupt function is
21 15 P1.3 I/O
assigned to each pin.
22 16 P2.0 I/O 4-bit I/O port (P2): each bit can be configured to be an
24 17 P2.1 I/O input/output, pull-up/pull-down resistor input/high impedance
25 18 P2.2 I/O input, or NMOS open drain output/CMOS output by port 2 control
registers 0-3 (P20CON-P23CON). An external interrupt function is
26 19 P2.3 I/O
assigned to each pin.
104 94 BD
O Output pin of buzzer driver
116 101 AIN0 I/O Analog voltage input pins. Each of these pins can be switched to
118 102 AIN1 I/O provide a constant current output by AD control register 0
119 103 AIN2 I/O (ADCON0).
120 104 AIN3 I/O
121 105 R_A — Current-adjusting resistor connection pin
122 106 R_I
— Pin for connecting resistor for integration
123 107 R_CM
Common connection pin for resistor for integration, capacitor 1
—
for offset compensation, and capacitor for integration.
124 108 C_Z1 — Pin for connecting capacitor 1 for offset compensation
125 109 C_I
— Pin for connecting capacitor for integration
126 110 C_Z2 — Pin for connecting capacitor 2 for offset compensation
127 111 V_G
—
109 99 VrA
Reference voltage for A/D conversion (internally generated
I
constant voltage)
115 100 V_OF
Pin for connecting resistor for voltage amplification circuit offset
I
adjustment
3
2 OPP0 I Analog micro-voltage input pin
6
5 OPP1 I
2
1 OPN0 I Pin for connecting resistor for voltage amplification factor
5
4 OPN1 I adjustment
1 113 OPO0 O
4
3 OPO1 O
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