UPSD3212C Datasheet, PDF (15/152 Pages) STMicroelectronics – Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM

UPSD3212C, UPSD3212CV
Port Pin
P4.4
P4.5
P4.6
P4.7
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
Signal
Name
Pin No. In/Out
Basic
Function
Alternate
PWM1
25
I/O General I/O port pin
8-bit Pulse Width Modulation
output 1
PWM2
23
I/O General I/O port pin
8-bit Pulse Width Modulation
output 2
PWM3
19
I/O General I/O port pin
8-bit Pulse Width Modulation
output 3
PWM4
18
I/O General I/O port pin
Programmable 8-bit Pulse Width
modulation output 4
PUP
8
I/O
Pull-up resistor required (2kΩ for 3V
devices, 7.5kΩ for 5V devices)
AVREF 70
O Reference Voltage input for ADC
RD_
65
O READ signal, external bus
WR_
62
O WRITE signal, external bus
PSEN_ 63
O PSEN signal, external bus
ALE
4
O Address Latch signal, external bus
RESET_ 68
I
Active low RESET input
XTAL1
48
I Oscillator input pin for system clock
XTAL2
49
O Oscillator output pin for system clock
35
I/O General I/O port pin
34
I/O General I/O port pin
32
I/O General I/O port pin
28
I/O General I/O port pin
26
I/O General I/O port pin
24
I/O General I/O port pin
1. PLD Macro-cell outputs
2. PLD inputs
3. Latched Address Out (A0-A7)
4. Peripheral I/O Mode
22
I/O General I/O port pin
21
I/O General I/O port pin
80
I/O General I/O port pin
78
I/O General I/O port pin
76
I/O General I/O port pin
74
I/O General I/O port pin
73
I/O General I/O port pin
72
I/O General I/O port pin
1. PLD Macro-cell outputs
2. PLD inputs
3. Latched Address Out (A0-A7)
67
I/O General I/O port pin
66
I/O General I/O port pin
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