參數(shù)資料
型號: UPD78322GJ-XXX-5BJ
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP74
封裝: 20 X 20 MM, PLASTIC, QFP-74
文件頁數(shù): 8/90頁
文件大小: 649K
代理商: UPD78322GJ-XXX-5BJ
14
PD78320, 78322
Input
Input
––
AN0 to AN7
AVREF
AVDD
AVSS
RESET
X1
X2
VDD
VSS
NC
1.2
NON- PORT PINS (2/2)
Dual-
Function Pin
Function
Pin Name
I/O
In the
PD78322, EA pin is normally connected to VDD. Connecting EA pin to VSS sets the
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.
EA
Input
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 VSS (GND) (can also be left open).
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