參數(shù)資料
型號(hào): UPD75512GFA
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCOMPUTER
中文描述: 4位單片機(jī)
文件頁(yè)數(shù): 11/64頁(yè)
文件大小: 494K
代理商: UPD75512GFA
μ
PD75512(A)
11
3.3
PIN INPUT/OUTPUT CIRCUITS
The following shows a simplified input/output circuit diagram for each pin of the
μ
PD75512(A).
TYPE A
TYPE D
TYPE B
TYPE E
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
IN/OUT
This input/output circuit consists of D-type push-pull
outputs and Type A input buffers.
P.U.R.
enable
V
DD
P.U.R.
P–ch
TYPE B–C
TYPE E
B
IN
data
output
disable
Type D
Type A
P.U.R.
enable
V
DD
P.U.R.
P–ch
IN/OUT
Schmitt trigger input with hysteresis characteristics
V
DD
P.U.R. : Pull-Up Resistor
P.U.R. : Pull-Up Resistor
P–ch
N–ch
Fig. 3-1 Pin Input/Output Circuits (1/3)
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