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參數(shù)資料
| 型號： | SAB-C502-2R20N |
| 廠商： | SIEMENS A G |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-Bit CMOS Microcontroller |
| 中文描述： | 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PQCC44 |
| 文件頁數(shù)： | 9/46頁 |
| 文件大?。?/td> | 567K |
| 代理商： | SAB-C502-2R20N |
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Semiconductor Group
8
P3.0 – P3.7
11, 13–19
11
13
14
15
16
17
18
19
10–17
10
11
12
13
14
15
16
17
I/O
Port 3
is a bidirectional I/O port with internal pull-up
resistors. Port 3 pins that have 1s written to
them are pulled high by the internal pull-up
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 pull-up
resistors. Port 3 also contains the interrupt,
timer, serial port 0 and external memory strobe
pins that are used by various options. The out-
put latch corresponding to a secondary func-
tion 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
R
×
D
receiver data input
(asynchronous) or data input/
output (synchronous) of serial
interface 0
transmitter data output
(asynchronous) or clock output
(synchronous) of the serial
interface 0
interrupt 0 input/timer 0 gate
control
interrupt 1 input/timer 1 gate
control
counter 0 input
counter 1 input
the write control signal latches
the data byte from port 0 into the
external data memory
the read control signal enables
the external data memory to
port 0
P3.1
T
×
D
P3.2
INT0
P3.3
INT1
P3.4
P3.5
P3.6
T0
T1
WR
P3.7
RD
XTAL2
20
18
–
XTAL2
Output of the inverting oscillator amplifier
*)I = Input
O = Output
Pin Definitions and Functions
(cont’d)
Symbol
Pin Number
I/O*)
Function
P-LCC-44
P-DIP-40
C502
相關PDF資料 |
PDF描述 |
|---|---|
| SAB-C502-2R20P | 8-Bit CMOS Microcontroller |
| SAB-C502-2RN | 8-Bit CMOS Microcontroller |
| SAB-C502-2RP | 8-Bit CMOS Microcontroller |
| SAB-C502-L20N | 8-Bit CMOS Microcontroller |
| SAF-C502-2R20N | 8-Bit CMOS Microcontroller |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SAB-C502-2R20P | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| SAB-C502-2RN | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| SAB-C502-2RP | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| SAB-C502-L20N | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| SAB-C502-L20P | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
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