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參數(shù)資料
| 型號(hào)： | UPD75116GF |
| 廠商： | NEC Corp. |
| 英文描述： | 4-Bit Single Chip-Microcomputer |
| 中文描述： | 4位單片微機(jī) |
| 文件頁數(shù)： | 14/56頁 |
| 文件大?。?/td> | 499K |
| 代理商： | UPD75116GF |
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14
μ
PD75112(A), 75116(A)
Table 5-1 Functions of Digital Ports
Remarks
Share the pins with SI, SO, SCK and
INT0 to 4.
Port 2 shares the pin with PTO0,
PTO1 and PCL.
On-chip pull-up registers can be
specified bit-wise by mask option.
5. Peripheral Hardware Functions
5.1 Digital Input/Output Port
The digital input/output port has the following tree types.
CMOS input (PORT0, 1)
CMOS input/output (PORT 2 to PORT 9)
N-ch open-drain input/output (PORT 12 to PORT 14): 12
:
: 32
8
Total
52
Functions
4-bit input
4-bit input/
output
4-bit input/
output
(N-ch open-
drain, 12 V
withstand
voltage)
Port (Code)
PORT0
PORT1
PORT3
PORT6
PORT2
PORT4
PORT5
PORT7
PORT8
PORT9
PORT12
PORT13
PORT14
Operations and Features
Read or test always enable irrespectively of the operating mode
of dual-function pins.
Can be set bit-wise to the input or output mode.
Can be set in 4-bit units to the input or output mode.
Ports 4 and 5, 6 and 7, 8 and 9 can form pairs and data can be
input/output in 8-bit units.
Can be set in 4-bit units the input or output mode.
Ports 12 and 13 can form a pair and data can be input/output in 8-
bit units.
5.2 Clock Generator
The clock generator is a circuit which supplies the CPU
and peripheral hardware with various clocks and con-
trols the CPU operating mode.
The instruction execution time can be changed.
0.95
μ
s/1.91
μ
s/15.3
μ
s (at 4.19 MHz operation)
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