Z86L972 Datasheet, PDF (13/91 Pages) Zilog, Inc. – Low-Voltage Microcontrollers

Z86L972/Z86L973/Z86L974
Low-Voltage Microcontrollers
6
P62
P63
P25
P26
P27
V_SS
V_SS
P44
P45
P46
P47
V_DD
V_DD
V_{DD_padring}
XTAL2
XTAL1
P51/CIN1/Captive Timer Input
P52/CIN2/T1 Timer Input (TIN)
P53/CREF2
P54/COUT1
1
40
2
39
3
38
4 _{Z86L972/ 37}
5
6
Z86L973/
36
35
7 ^Z86L974 34
8
33
9
32
10
31
11
30
12
29
13
28
14
27
15
26
16
25
17
24
18
23
19
22
20
21
P61
P60
P24
P23
P22
P21
P20
P43/Combined T8 T16 Output
V_SS
P42
P41/T16 Output
P40/T8 Output
P50/CREF1
P56/T1 Timer Output
P57
P55/COUT2
P67
P66
P65
P64
Notes:
1. All V_SS pins must be connected to ground.
2. All V_DD pins must be connected to the same filtering capacitor.
3. Power must be connected to V_{DD_padring}. Current passes to V_DD through the
internal power filter.
Figure 3. 40-Pin DIP Pin Assignment
PS010504-1002
PRELIMINARY