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參數資料
型號: Q67127-C2036SAB-C161R1-L16M
英文描述: IC-SM-16 BIT CPU
中文描述: 集成電路的Sm - 16位CPU
文件頁數: 40/121頁
文件大小: 1000K
代理商: Q67127-C2036SAB-C161R1-L16M
Semiconductor Group
6-6
On-Chip Peripheral Components
C501
Port 0, in contrast to ports 1, 2 and 3, is considered as “true” bidirectional, because the port 0 pins
float when configured as inputs. Thus, this port differs in not having internal pullups. The pullup FET
in the P0 output driver (see
figure 6-7
) is used only when the port is emitting 1 s during the external
memory accesses. Otherwise, the pullup is always off. Consequently, P0 lines that are used as
output port lines are open drain lines. Writing a “1” to the port latch leaves both output FETs off and
the pin floats. In that condition it can be used as high-impedance input. If port 0 is configured as
general I/O port and has to emit logic high-level (1), external pullups are required.
Figure 6-7
Port 0 Circuitry
MCS02122
D
CLK
Bit
Latch
Q
Q
Control
Addr./Data
MUX
Read
Latch
to
Latch
Read
Pin
Write
V
CC
Int. Bus
&
Pin
Port
=1
相關PDF資料
PDF描述
Q67120-C2200 16-Bit Single-Chip Microcontroller Bare Die Delivery
Q67120-C1054 High Speed CMOS Logic Triple 3-Input NOR Gates 14-SOIC -55 to 125
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Q67120-C2002 High Speed CMOS Logic Octal D-Type Flip-Flops with Reset 20-SOIC -55 to 125
Q67120-C2003 8-Bit CMOS Microcontroller
相關代理商/技術參數
參數描述
Q67127-C2056 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller
Q67127-C2057 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller
Q67127-C2058 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller
Q67127-C2060 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller
Q67127-C2061 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller
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