upd64a Renesas Electronics Corporation., upd64a Datasheet - Page 7

• Manufacturer Part Number: upd64a
• Description: 4-bit Single-chip Microcontroller For Infrared Remote Control Transmission
• Manufacturer: Renesas Electronics Corporation.

1.2 Pin I/O Circuits
disable
Output
Pull-down flag
Standby
Data
release
The I/O circuits of the PD64A and 65 pins are shown in partially simplified forms below.
(1) K
Note The drive capability is held low.
(2) K
(3) REM
Data
I/O0
I0
to K
Output
latch
Carrier
generator
Output
latch
to K
I3
I/O7
Input buffer
Input buffer
N-ch
V
DD
V
N-ch
P-ch
DD
P-ch
N-ch
Note
Data Sheet U14380EJ3V0DS00
N-ch
REM
output latch
Standby
(4) S
(5) S
(6) S
release
Standby
release
disable
Output
STOP release
ON/OFF
Standby
release
1
0
2
/LED
Pull-down flag
Pull-down flag
OFF mode
Input buffer
Input buffer
Input buffer
PD64A, 65
N-ch
V
DD
P-ch
N-ch
N-ch
N-ch
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