参数资料
型号: C517A
厂商: SIEMENS AG
元件分类: 8位微控制器
英文描述: 8-Bit CMOS Microcontroller
中文描述: 8位CMOS微控制器
文件页数: 14/72页
文件大小: 845K
代理商: C517A
C517A
Semiconductor Group
12
P3.0 - P3.7
90 - 97
90
91
92
93
94
95
96
97
21 - 28
21
22
23
24
25
26
27
28
I/O
Port 3
is an 8-bit quasi-bidirectional I/O port with
internal pullup resistors. Port 3 pins that
have 1’s written to them are pulled high by
the internal pullup resistors, and in that state
can be used as inputs. As inputs, port 3 pins
being externally pulled low will source
current (
I
IL
, in the DC characteristics)
because of the internal pullup resistors. Port
3 also contains the interrupt, timer, serial
port and external memory strobe pins that
are used by various options. The output
latch corresponding to a secondary function
must be programmed to a one (1) for that
function to operate. The secondary
functions are assigned to the pins of port 3,
as follows:
P3.0 / RxD0
Receiver data input
(asynch.) or data
input/output (synch.)of
serial interface 0
P3.1 / TxD0
Transmitter data output
(asynch.) or clock output
(synch.) of serial interface
0
P3.2 / INT0
External interrupt 0 input /
timer 0 gate control input
P3.3 / INT1
External interrupt 1 input /
timer 1 gate control input
P3.4 / T0
Timer 0 counter input
P3.5 / T1
Timer 1 counter input
P3.6 / WR
WR control output; latches
the data byte from port 0
into the external data
memory
P3.7 / RD
RD control output; enables
the external data memory
*) I = Input
O = Output
Table 1
Pin Definitions and Functions
(cont’d)
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相关代理商/技术参数
参数描述
C517A_99 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller
C517S-3A 制造商:未知厂家 制造商全称:未知厂家 功能描述:Fuse
C518 制造商:COOPER 制造商全称:Cooper Bussmann, Inc. 功能描述:PCB & Small Dimension Fuses
C518-.1 制造商:未知厂家 制造商全称:未知厂家 功能描述:Fuse
C518-.125 制造商:未知厂家 制造商全称:未知厂家 功能描述:Fuse