Z86L972 Datasheet, PDF (14/91 Pages) Zilog, Inc. – Low-Voltage Microcontrollers

Z86L972/Z86L973/Z86L974
Low-Voltage Microcontrollers
7
Pins Configuration
Table 2 describes the pins.
Table 2. Pin Descriptions
Pin #
Symbol
40 48
PDIP SSOP
P20
34 40
P21
35 41
P22
36 44
P23
37 45
P24
38 46
P25
3
3
P26
4
4
P27
5
5
P40
29 34
P41
30 35
P42
31 36
P43
33 39
P44
8
9
P45
9
10
P46
10 11
P47
11 12
P50, CREF1 28 33
P51, CIN1 17 20
P52, CIN2 18 21
P53, CREF2 19 22
P54
20 23
P55
25 28
P56
27 32
P57
26 29
P60
39 47
P61
40 48
P62
1
1
P63
2
2
P64
21 24
P65
22 25
P66
23 26
P67
24 27
XTAL1
16 18
Direction
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Output
I/O
I/O
I/O
I/O
I/O
I/O
Input
Input
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Input
Description
Port 2 Bit 0
Port 2 Bit 1
Port 2 Bit 2
Port 2 Bit 3
Port 2 Bit 4
Port 2 Bit 5
Port 2 Bit 6
Port 2 Bit 7
Port 4 Bit 0, T8 Output
Port 4 Bit 1, T16 Output
Port 4 Bit 2
T8/T16 Output, Controlled current output
Port 4 Bit 4
Port 4 Bit 5
Port 4 Bit 6
Port 4 Bit 7
Port 5 Bit 0, Comparator 1 reference
Port 5 Bit 1, Capture timer input, IRQ₂
Port 5 Bit 2, Timer 1 timer input, IRQ₀
Port 5 Bit 3, Comparator 2 reference, IRQ₁
Port 5 Bit 4, High drive output
Port 5 Bit 5, High drive output
Port 5 Bit 6, Timer 1 output, High drive output
Port 5 Bit 7, High drive output
Port 6 Bit 0
Port 6 Bit 1
Port 6 Bit 2
Port 6 Bit 3
Port 6 Bit 4
Port 6 Bit 5
Port 6 Bit 6
Port 6 Bit 7
Crystal, Oscillator clock
PS010504-1002
PRELIMINARY