Z86L972 Datasheet, PDF (12/91 Pages) Zilog, Inc. – Low-Voltage Microcontrollers

Z86L972/Z86L973/Z86L974
Low-Voltage Microcontrollers
5
Pin Descriptions
Figure 2 and Figure 3 show the pin names and locations.
P62
1
48
P61
P63
2
47
P60
P25
3
P26
4
P27
5
NC
6
V_SS
7
46
P24
45
P23
44
P22
43
NC
42
NC
V_SS
8
41
P21
P44
9 ^Z86L972/ 40
P20
P45
10 _{Z86L973/ 39}
P43
P46
11 _{Z86L974 38}
VSS
P47
12
37
VSS
V_DD
13
36
P42
V_DD
14
35
P41
V_DD
15
34
P40
V_{DD_padring}
16
XTAL2
17
33
P50
32
P56
XTAL1
18
31
NC
NC
19
30
NC
P51
20
29
P57
P52
21
281
P55
P53
22
27
P67
P54
23
26
P66
P64
24
25
P65
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. NC is no connection to the die.
4. Power must be connected to V_{DD_padring}. Current passes to V_DD through the
internal power filter.
Figure 2. 48-Pin SSOP Pin Assignments
PS010504-1002
PRELIMINARY