參數(shù)資料
型號(hào): μPD784031(A)
廠商: NEC Corp.
英文描述: 8/16 Bit Single Chip Microcontrollers(8/16 位單片微控制器)
中文描述: 8 / 16位單片機(jī)微控制器(8 / 16位單片微控制器)
文件頁(yè)數(shù): 14/86頁(yè)
文件大?。?/td> 540K
代理商: ΜPD784031(A)
μ
PD784031(A)
14
Table 5-1. Types of I/O Circuits for Pins and Handling of Unused Pins (2/2)
Pin
I/O circuit type
I/O
Recommended connection method for unused pins
RESET
2
Input
-
TEST
1-A
Connect this pin to V
SS0
directly.
AV
REF1
-AV
REF3
-
Connect these pins to V
SS0
.
AV
SS
AV
DD
Connect this pin to V
DD0
.
Caution When I/O mode of an I/O dual-function pin is unpredictable, connect the pin to V
DD0
through a
resistor of 10 to 100 kilohms (particularly when the voltage of the reset input pin becomes higher
than that of the low level input at power-on or when I/O is switched by software).
Remark
Since type numbers are consistent in the 78K series, those numbers are not always serial in each product.
(Some circuits are not included.)
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