參數(shù)資料
型號(hào)： UPD75306BGF
廠商： NEC Corp.
英文描述： 4-BIT SINGLE-CHIP MICROCOMPUTER
中文描述： 4位單片機(jī)
文件頁數(shù)： 10/76頁
文件大?。?/td> 572K
代理商： UPD75306BGF
10
μ
PD75304B,75306B,75308B
3.1
PORT PINS (2/2)
Dual-
Function Pin
KR0
KR1
KR2
KR3
KR4
KR5
KR6
KR7
S24
S25
S26
S27
S28
S29
S30
S31
*
1.
: Schmitt trigger input
2.
BP0 to BP7 select V
LC1
as the input source.
However, the output level depends on BP0 to BP7 and V
LC1
external circuit.
Example
BP0 to BP7 are connected mutually within the
μ
PD75308B. Therefore, the output level of BP0 to BP7
is determined by the value of R
1
, R
2
and R
3
.
μ
PD75308B
ON
ON
V
LC1
R
1
R
3
BP0
BP1
R
2
V
DD
Pin Name
P60
P61
P62
P63
P70
P71
P72
P73
BP0
BP1
BP2
BP3
BP4
BP5
BP6
BP7
Input/Output
Input/output
Input/output
Output
Output
Function
Programmable 4-bit input/output port (PORT 6)
Input/output can be specified bit-wise.
On-chip pull-up resistor can be specified as a
4-bit unit by software.
4-bit input/output port (PORT 7)
On-chip pull-up resistor can be specified as a
4-bit unit by software.
1-bit output port (BIT PORT)
Also used as segment output pin.
8-bit I/O
×
Input
Input
* 2
I/O Circuit
Type
*1
F - A
F - A
G - C
After
Reset
相關(guān)PDF資料
PDF描述
UPD75306BGK 4-BIT SINGLE-CHIP MICROCOMPUTER
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