UPD75238GJ NEC [NEC], UPD75238GJ Datasheet - Page 135

• Manufacturer Part Number: UPD75238GJ
• Description: 4 BIT SINGLE-CHIP MICROCOMPUTER
• Manufacturer: NEC [NEC]

INT0/P10
INT1/P11
INT2/P12
Noise
eliminator
Selector
Input buffer
Fig. 5-2 Configuration of INT0 and INT1
Input buffer
Fig. 5-3 Configuration of INT2
64
f
X
Internal bus
Internal bus
Edge detection
circuit
Edge detection
circuit
IM1
Rising edge
detection
circuit
4
IM10
IM03
IM01, IM00
IM0
4
2
INT2
IRQ2 set
signal
PD75238
INT0
INT1
IRQ0 set
signal
IRQ1 set
signal
135