UPD753012GC NEC, UPD753012GC Datasheet - Page 9

• Manufacturer Part Number: UPD753012GC
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER
• Manufacturer: NEC

3.1 Port Pins (2/2)
Notes 1.
Example BP0 to BP7 are connected each other internally in the PD753017 as shown below. Therefore, the
P60
P61
P62
P63
P70
P71
P72
P73
BP0
BP1
BP2
BP3
BP4
BP5
BP6
BP7
Pin Name
2.
output levels of BP0 to BP7 are determined by the levels of R
Circled characters indicate the Schmitt-trigger input.
For BP0 to BP7, V
The output levels differ depending on BP0 to BP7 and the external circuit of the V
Input/Output
Input/Output
Input/Output
Output
Output
V
LC1
R
1
Function Pin
LC1
Dual
KR0
KR1
KR2
KR3
KR4
KR5
KR6
KR7
S24
S25
S26
S27
S28
S29
S30
S31
is selected as an input source.
Programmable 4-bit input/output port
(PORT6).
This port can be specified for input/output
bit-wise.
On-chip pull-up resistors can be specified
in software in 4-bit units.
4-bit input/output port (PORT7).
On-chip pull-up resistors can be specified
in software in 4-bit units.
1-bit output port (BIT PORT)
Also used for segment output pins.
PD753017
ON
ON
Function
PD753012, 753016, 753017
BP0
BP1
V
1
, R
DD
R
R
2
2
3
, and R
8-bit
I/O
3
At Reset
Note 2
Input
Input
LC1
.
TYPE
I/O Circuit
F -A
F -A
H-A
Note 1
9