參數(shù)資料
型號(hào)： UPD784907
廠商： NEC Corp.
英文描述： 16-BIT SINGLE-CHIP MICROCONTROLLER
中文描述： 16位單片機(jī)
文件頁(yè)數(shù)： 19/98頁(yè)
文件大?。?/td> 657K
代理商： UPD784907
μ
PD784907, 784908
19
Data Sheet U11680EJ2V0DS00
Table 6-1. Types of Pin I/O Circuits and Recommended Connections of Unused Pins (2/2)
Pin Name
I/O Circuit Type
I/O
Recommended Connections of Unused Pins
RESET
2
Input
—
TEST
1
Connect directly to V
SS
XT2
—
—
Leave open
XT1
—
Input
Connect to V
SS
PWM0, PWM1
3
Output
Leave open
RX
1
Input
Connect to V
DD
or V
SS
TX
3
Output
Leave open
AV
REF1
—
—
Connect to V
SS
AV
SS
AV
DD
Connect to V
DD
Caution
Connect an I/O pin, whose input/output mode is undefined, to V
DD
via a resistor of several
10 k
(especially if the voltage on the reset input pin rises higher than the low level input at power
on or when the mode is being switched between input and output by software).
Remark
Since type numbers are commonly used in the 78K Series, these numbers are not always serial in each
product (some circuits are not included).
相關(guān)PDF資料
PDF描述
UPD784907GF 16-BIT SINGLE-CHIP MICROCONTROLLER
UPD784908 16-BIT SINGLE-CHIP MICROCONTROLLER
UPD784908GF 16-BIT SINGLE-CHIP MICROCONTROLLER
UPD784908GF-XXX-3BA 16-Bit Microcontroller
UPD784907GF-XXX-3BA 16-Bit Microcontroller
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