
Z8PE002
ZiLOG
Z8Plus OTP Microcontroller
DS008700-Z8X0799 P R E L I M I N A R Y 7
Figure 6. 20-Pin SSOP Pin Identification/EPROM Programming Mode
Table 4. EPROM Programming Mode
Pin # Symbol Function Direction
1 PGM Program Mode Input
2–4 GND Ground
5 ADCLR/V
PP
Clear Clock/Program Voltage Input
6 NC No Connection
7–10 D7–D4 Data 7,6,5,4 Input/Output
11–14 D3–D0 Data 3,2,1,0 Input/Output
15 NC No Connection
16 V
DD
Power Supply
17 GND Ground
18 NC No Connection
19 XTAL1 1-MHz Clock Input
20 ADCLK Address Clock Input
PGM
GND
GND
GND
ADCLR/V
PP
NC
D7
D6
D5
D4
ADCLK
XTAL1
NC
GND
V
DD
NC
D0
D1
D2
D3
20
20-Pin
SSOP
1
10 11
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