參數(shù)資料
型號(hào): HD404448
廠商: Hitachi,Ltd.
英文描述: 4-bit HMCS400-Series microcomputer(4位單片微計(jì)算機(jī))
中文描述: 4位HMCS400系列微機(jī)(4位單片微計(jì)算機(jī))
文件頁數(shù): 42/123頁
文件大?。?/td> 726K
代理商: HD404448
HD404449 Series
42
Input/Output
The MCU has 64 input/output pins (D
0
–D
11
, R0
0
–RC
3
) and 2 input pins (D
12
, D
13
). The features are
described below.
10 pins (D
0
–D
9
) are high-current input/output pins.
The D
12
, D
13
, R0
0
–R0
2
, and R3
0
–R5
3
input/output pins are multiplexed with peripheral function pins
such as for the timers or serial interface. For these pins, the peripheral function setting is done prior to
the D or R port setting. Therefore, when a peripheral function is selected for a pin, the pin function and
input/output selection are automatically switched according to the setting.
Input or output selection for input/output pins and port or peripheral function selection for multiplexed
pins are set by software.
Peripheral function output pins are CMOS output pins. Only the R4
3
/SO
1
and R5
3
/SO
2
pins can be set to
NMOS open-drain output by software.
In stop mode, the MCU is reset, and therefore peripheral function selection is cancelled. Input/output
pins are in high-impedance state.
Each input/output pin has a built-in pull-up MOS, which can be individually turned on or off by
software.
I/O buffer configuration is shown in figure 28, programmable I/O circuits are listed in table 23, and I/O pin
circuit types are shown in table 24.
Table 23
Programmable I/O Circuits
MIS3 (Bit 3 of MIS)
0
1
DCD, DCR
0
1
0
1
PDR
0
1
0
1
0
1
0
1
CMOS buffer
PMOS
On
On
NMOS
On
On
Pull-up MOS
Note:
On
On
— indicates off status.
相關(guān)PDF資料
PDF描述
HD404449 4-bit HMCS400-Series microcomputer(4位單片微計(jì)算機(jī))
HD4074459 4-bit HMCS400-Series microcomputer(4位單片微計(jì)算機(jī))
HD404458 4-bit HMCS400-Series microcomputer(4位單片微計(jì)算機(jī))
HD404459 4-bit HMCS400-Series microcomputer(4位單片微計(jì)算機(jī))
HD40A4052 4-Bit Single-Chip Microcomputer(4位單片微計(jì)算機(jī))
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD404448H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:HD404449 SERIES
HD404448TF 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:HD404449 SERIES
HD404449 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:HD404449 SERIES
HD404449H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:HD404449 SERIES
HD404449SERIES 制造商:未知廠家 制造商全稱:未知廠家 功能描述: