UPD75004 データシートの表示（PDF） - NEC => Renesas Technology

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UPD75004

4-BIT SINGLE-CHIP MICROCOMPUTER

NEC => Renesas Technology 

µPD75004, 75006, 75008

3.3 PIN INPUT/OUTPUT CIRCUITS

The following shows a simplified input/output circuit diagram for each pin of the µPD75008.

TYPE A (for TYPE E–B)

VDD

P–ch

IN

N–ch

TYPE D (for TYPE E–B, F–A)

data

VDD

OUT

output

disable

Input buffer of CMOS standard

TYPE B

IN

Push–pull output that can be set in a output

high–impedance state (both P–ch and N–ch are off)

TYPE E–B

data

output

disable

P.U.R.

enable

Type D

VDD

P.U.R.

P–ch

IN/OUT

Schmitt trigger input with hysteresis characteristics

Type A

P.U.R. : Pull–Up Resistor

TYPE B–C

VDD

P.U.R.

P–ch

IN

P.U.R.

enable

TYPE F–A

data

output

disable

P.U.R.

enable

Type D

VDD

P.U.R.

P–ch

IN/OUT

P.U.R. : Pull–Up Resistor

Type B

P.U.R. : Pull–Up Resistor

12

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