參數(shù)資料
型號(hào)： UPD75206
廠(chǎng)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(yè)數(shù)： 14/62頁(yè)
文件大?。?/td> 489K
代理商： UPD75206
14
μ
PD75206
Port name
Function
Operation, feature
Remarks:
PORT0
Can always be read or tested regardless of operation mode of
Multiplexed with SI, SO, SCK,
multiplexed pin.
and INT4 pins.
PORT1
Can always be read or tested. P10 and P11 are provided with
Multiplexed witn INT0-2 and
noise rejection function.
TI0 pins.
PORT2
Can be set in input or output mode in 4-bit units. Ports 4 and 5
P23 is multiplexed witn BUZ
PORT4
can be usd in pairs to input/output 8-bit data.
pin.
PORT5
Ports 4 and 5 can directly drive LED.
PORT3
Can be set in input or output mode in 1-bit units. Port 6 can be
PORT6
connected to internal pull-down resistor by the mask option.
PORTH
P-ch open-drain, high-voltage, high-current output port. Can
Multiplexed with T10-T13
directly drive FIP and LED. Can be connected to internal pull-
pins.
down resistor in 1-bit units by the mask option.
5.
PERIPHERAL HARDWARE FUNCTIONS
5.1
PORTS
The following three types of I/O ports are provided:
CMOS input
CMOS I/O
P-ch open-drain, high-voltage, high-current output : 4
Total
: 8
: 20
: 32
Table 5-1 Port Function
4-bit input
4-bit I/O
4-bit output
相關(guān)PDF資料
PDF描述
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