UPD6134 NEC, UPD6134 Datasheet - Page 7

• Manufacturer Part Number: UPD6134
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION
• Manufacturer: NEC

1.2 INPUT/OUTPUT Circuits of Pins
disable
Output
Data
Standby
The input/output circuits of the PD6133 pins are shown in partially simplified forms below.
(1) K
Note The drive capability is held low.
(2) K
release
(3) REM
Data
Pull-down flag
I/O0
I0
-K
Carrier
generator
Output
latch
-K
Output
latch
I3
I/O7
Input buffer
Input buffer
V
V
DD
P-ch
N-ch
DD
N-ch
P-ch
N-ch
Data Sheet U10454EJ6V0DS00
Note
N-ch
Internal reset signal
Standby
release
REM
output latch
other than POC
(4) S
(5) S
(6) RESET
Standby
release
disable
Output
POC circuit
1
0
Pull-down flag
/LED
Pull-down flag
OFF mode
Input buffer
Input buffer
Mask option
Input buffer
PD6133, 6134
V
V
DD
DD
P-ch
N-ch
P-ch
N-ch
N-ch
N-ch
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