UPD78320GJ-5BJ NEC, UPD78320GJ-5BJ Datasheet - Page 14

• Manufacturer Part Number: UPD78320GJ-5BJ
• Description: 16/8-BIT SINGLE-CHIP MICROCONTROLLER
• Manufacturer: NEC

14
1.2
AN0 to AN7
Pin Name
RESET
AV
AV
AV
V
NON- PORT PINS (2/2)
V
NC
EA
X1
X2
DD
SS
REF
DD
SS
Input
Input
Input
Input
Input
I/O
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A/D converter analog input
A/D converter reference voltage input
A/D converter analog power supply
A/D converter GND
System reset input
Crystal connect pin for sysem clock oscillation. When an external clock is supplied,
the clock is input to X1 and the inverted clock is input to X2. (X2 can also be left open.)
Positive power supply
GND pin
Not internally connected. Connected to V
In the PD78322, EA pin is normally connected to V
ROM-less mode and accesses the external memory. In the PD78320, this pin should be
fixed to “0” (low level). The EA pin level cannot be changed during operation.
Function
SS
(GND) (can also be left open).
DD
. Connecting EA pin to V
PD78320, 78322
SS
sets the
Function Pin
Dual-
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