參數資料
型號: UPD75004GB
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCOMPUTER
中文描述: 4位單片機
文件頁數: 12/66頁
文件大?。?/td> 542K
代理商: UPD75004GB
μ
PD75004, 75006, 75008
12
3.3
PIN INPUT/OUTPUT CIRCUITS
The following shows a simplified input/output circuit diagram for each pin of the
μ
PD75008.
TYPE A (for TYPE E–B)
TYPE D (for TYPE E
B, F
TYPE B
TYPE E–B
IN
V
DD
Input buffer of CMOS standard
data
output
disable
OUT
P–ch
N–ch
Push–pull output that can be set in a output
high–impedance state (both P–ch and N–ch are off)
IN
Schmitt trigger input with hysteresis characteristics
data
output
disable
Type D
Type A
P.U.R.
enable
V
DD
P.U.R.
P–ch
IN/OUT
P.U.R. : Pull–Up Resistor
P.U.R.
enable
V
DD
P.U.R.
P–ch
TYPE B–C
TYPE F–A
IN
data
output
disable
Type D
Type B
P.U.R.
enable
V
DD
P.U.R.
P–ch
IN/OUT
P.U.R. : Pull–Up Resistor
P.U.R. : Pull–Up Resistor
A)
V
DD
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