ST72101 Просмотр технического описания (PDF) - STMicroelectronics
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ST72101
STMicroelectronics
ST72101 Datasheet PDF : 85 Pages
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ST72101/ST72212/ST72213
Table 1. ST72212 Pin Configuration
Pin n° Pin n °
SDIP32 SO28
Pin Name
Type
Description
Remarks
1
1 RESET
I/O Bidirectional. Active low. Top priority non maskable interrupt.
2
2 OSCIN
3
3 OSCOUT
I Input/Output Oscillator pin. These pins connect a parallel-resonant
O crystal, or an external source to the on-chip oscillator.
4
4 PB7/SS
I/O Port B7 or SPI Slave Select (active low)
External Interrupt: EI1
5
5 PB6/SCK
I/O Port B6 or SPI Serial Clock
External Interrupt: EI1
6
6 PB5/MISO
I/O Port B5 or SPI Master In/ Slave Out Data
External Interrupt: EI1
7
7 PB4/MOSI
I/O Port B4 or SPI Master Out / Slave In Data
External Interrupt: EI1
8
NC
Not Connected
9
NC
Not Connected
10
8 PB3/OCMP2_A
I/O Port B3 or TimerA Output Compare 2
External Interrupt: EI1
11
9 PB2/ICAP2_A
I/O Port B2 or TimerA Input Capture 2
External Interrupt: EI1
12
10 PB1/OCMP1_A
I/O Port B1 or TimerA Output Compare 1
External Interrupt: EI1
13
11 PB0/ICAP1_A
I/O Port B0 or TimerA Input Capture 1
External Interrupt: EI1
14
12 PC5/EXTCLK_A/AIN5 I/O Port C5 orTimerA Input Clock or ADC Analog Input 5 External Interrupt: EI1
15
13
PC4/OCMP2_B/AIN4
I/O
PortC4orTimerB OutputCompare2or ADC Analog
Input 4
External Interrupt: EI1
16
14 PC3/ICAP2_B/AIN3
I/O
Port C3 or TimerB Input Capture 2 or ADC Analog
Input 3
External Interrupt: EI1
Port C2 or Internal Clock Frequency Output or ADC
17
15 PC2/CLKOUT/AIN2 I/O Analog Input 2. Clockout is driven by Bit 5 of the External Interrupt: EI1
miscellaneous register.
18
16
PC1/OCMP1_B/AIN1
I/O
PortC1orTimerB OutputCompare1or ADC Analog
Input 1
External Interrupt: EI1
19
17 PC0/ICAP1_B/AIN0
I/O
Port C0 or TimerB Input Capture 1 or ADC Analog
Input 0
External Interrupt: EI1
20
18 PA7
I/O Port A7, High Sink
External Interrupt: EI0
21
19 PA6
I/O Port A6, High Sink
External Interrupt: EI0
22
20 PA5
I/O Port A5, High Sink
External Interrupt: EI0
23
21 PA4
I/O Port A4, High Sink
External Interrupt: EI0
24
NC
Not Connected
25
NC
Not Connected
26
22 PA3
I/O Port A3, High Sink
External Interrupt: EI0
27
23 PA2
I/O Port A2, High Sink
External Interrupt: EI0
28
24 PA1
I/O Port A1, High Sink
External Interrupt: EI0
29
25 PA0
30
26 TEST/VPP(1)
31
27 VSS
32
28 VDD
Note 1: VPP on EPROM/OTP only
I/O Port A0, High Sink
External Interrupt: EI0
I/S
Test mode pin (should be tied low in user mode). In the EPROM program-
ming mode, this pin acts as the programming voltage input VPP.
S Ground
S Main power supply
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