Z86C34 Datasheet, PDF (4/70 Pages) Zilog, Inc. – CMOS Z8 MCUs WITH ASCI UART OFFER EFFICIENT, COST-EFFECTIVE DESIGN FLEXIBILITY

Z86C34/C35/C36/C44/C45/C46
CMOS Z8® MCUs with ASCI UART
PIN DESCRIPTION (Continued)
R/W
P25
P26
P27
P04
P05
P06
P14
P15
P07
V_CC
P16
P17
XTAL2
XTAL1
P31
P32
P33
P34
AS
1
40
Z86C44/C45/C46
20
21
DS
P24
P23
P22
P21
P20
P03
P13
P12
GND
P02
P11
P10
P01
P00
P30
P36
P37
P35
RESET
Figure 4. 40-Pin DIP Configuration
ZiLOG
Table 2. 40-Pin Dual-In-Line Package Pin Identification
Pin # Symbol
1
2–4
5–7
8–9
10
11
12–13
14
15
16–18
19
20
R/W
P25–27
P04–06
P14–15
P07
V_CC
P16–17
XTAL2
XTAL1
P31–33
P34
AS
Function
READ/WRITE
Port 2, Bits 5,6,7
Port 0, Bits 4,5,6
Port 1, Bits 4,5
Port 0, Bit 7
Power Supply
Port 1, Bits 6,7
Crystal Oscillator
Crystal Oscillator
Port 3, Bits 1,2,3
Port 3, Bit 4
Address Strobe
Direction
Output
In/Output
In/Output
In/Output
In/Output
In/Output
Output
Input
Input
Output
Output
Table 2. 40-Pin Dual-In-Line Package Pin Identification
Pin # Symbol
21
22
23
24
25
26–27
28–29
30
31
32–33
34
35–39
40
RESET
P35
P37
P36
P30
P00–01
P10–11
P02
GND
P12–13
P03
P20–24
DS
Function
Reset
Port 3, Bit 5
Port 3, Bit 7
Port 3, Bit 6
Port 3, Bit 0
Port 0, Bit 0,1
Port 1, Bit 0,1
Port 0, Bit 2
Ground
Port 1, Bit 2,3
Port 0, Bit 3
Port 2, Bit 0,1,2,3,4
Data Strobe
Direction
Input
Output
Output
Output
Input
In/Output
In/Output
In/Output
In/Output
In/Output
In/Output
Output
4
PRELIMINARY
DS007601-Z8X0499