Z86D99 ZILOG [Zilog, Inc.], Z86D99 Datasheet - Page 14

• Manufacturer Part Number: Z86D99
• Description: Low-Voltage Micro controllers with ADC
• Manufacturer: ZILOG [Zilog, Inc.]

PS003807-1002
Symbol
P20
P21
P22
P23
P24
P25
P26
P27
P40
P51/CIN1/Capture Timer Input
Pins Configuration
P52/CIN2/T1 Timer Input
Pin #
28
PDIP/SOIC
24
25
26
27
28
1
2
3
19
Figure 4. 28-Pin SOIC/DIP Pin Assignment—User Mode
Table 2 describes the pins.
Table 2. Pin Descriptions
P54/COUT1
P53/CREF2
P44/ADC0
P45/ADC1
P46/ADC2
P47/ADC3
XTAL2
XTAL1
V
40
PDIP
34
35
36
37
38
3
4
5
29
P25
P26
P27
DD
*
48
SSOP
40
41
44
45
46
3
4
5
34
P
R
1
2
3
4
5
6
7
8
9
10
11
12
13
14
E
Direction
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Z86D991/
Z86L991
L
Notes:
1. P43 is a controlled current output.
2. P54, P55, P56, and P57 are high drive
* V
I
DD
outputs.
M
= V
Z86D990/Z86D991 OTP and Z86L99X ROM
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
28
27
26
25
24
23
22
21
20
19
18
17
16
15
I
Low-Voltage Microcontrollers with ADC
DD_CORE
N
A
R
+ V
P24
P23
P22
P21
P20
P43/Combined T8 T16 Output
V
P42
P41/T16 Output
P40/T8 Output
P50/CREF1
P56/T1 Timer Output
P57
P55/COUT2
Y
DD_padring
SS
**
+ AV
DD
7