Z86E30/E31/E40
Z8 4K OTP Microcontroller
Zilog
33
23
22
P21
P22
P23
P24
/DS
NC
R//W
P25
P26
P27
P04
34
P30
P36
P37
P35
/RESET
R//RL
/AS
P34
P33
44-Pin QFP
P32
P31
12
11
44
1
Figure 5. 44-Pin QFP Pin Configuration
Standard Mode
Table 3. 44-Pin QFP Pin Identification
Pin # Symbol Function Direction
Table 3. 44-Pin QFP Pin Identification
Pin # Symbol Function Direction
1-2
3-4
5
P05-P06 Port 0, Pins 5,6
P14-P15 Port 1, Pins 4,5
In/Output
In/Output
In/Output
27
P02
Port 0, Pin 2
Ground
In/Output
28-29 GND
P07
Port 0, Pin 7
30-31 P12-P13 Port 1, Pins 2,3
32 P03 Port 0, Pin 3
33-37 P20-4
In/Output
In/Output
6-7
8-9
10
11
VCC
Power Supply
P16-P17 Port 1, Pins 6,7
XTAL2 Crystal Oscillator
XTAL1 Crystal Oscillator
In/Output
Output
Input
Port 2, Pins 0,1,2,3,4 In/Output
38
39
40
/DS
NC
Data Strobe
No Connection
Read/Write
Output
12-14 P31-P13 Port 3, Pins 1,2,3
Input
R//W
Output
15
16
17
18
19
20
21
22
P34
Port 3, Pin 4
Output
Output
41-43 P25-P27 Port 2, Pins 5,6,7
44 P04 Port 0, Pin 4
In/Output
In/Output
/AS
Address Strobe
R//RL
ROM/ROMless select Input
/RESET Reset
Input
P35
P37
P36
P30
Port 3, Pin 5
Output
Output
Output
Input
Port 3, Pin 7
Port 3, Pin 6
Port 3, Pin 0
23-24 P00-P01 Port 0, Pin 0,1
25-26 P10-P11 Port 1, Pins 0,1
In/Output
In/Output
6
P R E L I M I N A R Y
DS97Z8X0500
ZILOG [ ZILOG, INC. ]
