UPD6P8 NEC [NEC], UPD6P8 Datasheet - Page 11

• Manufacturer Part Number: UPD6P8
• Description: MOS INTEGRATED CIRCUIT 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION
• Manufacturer: NEC [NEC]

1.3 Pins I/O Circuits
disable
Standby
Pull-down flag
Output
release
Data
The I/O circuits of the PD6P8, 6P8A, 6P8B pins are shown in partially simplified forms below.
(1) K
(2) K
(3) REM
Data
Notes 1. The drive capability is held low.
I/O0
I0
2.
to K
Output
latch
Carrier
generator
Output
latch
to K
I3
PD6P8B only
I/O7
Input buffer
Input buffer
V
V
DD
N-ch
DD
P-ch
P-ch
N-ch
N-ch
Note 1
Data Sheet U17848EJ3V0DS
N-ch
Standby
release
REM
output latch
Standby
STOP release
(4) S
Standby
(6) S
(5) S
release
release
disable
Output
ON/OFF
0
1
2
Pull-down flag
Pull-down flag
/LED
,
S
3
Note 2
OFF mode
Input buffer
PD6P8, 6P8A, 6P8B
Input buffer
Input buffer
V
DD
P-ch
N-ch
N-ch
N-ch
N-ch
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