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参数资料
| 型号： | SAH-C505-L |
| 厂商： | INFINEON TECHNOLOGIES AG |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, 20 MHz, MICROCONTROLLER, PQFP44 |
| 封装： | METRIC, PLASTIC, QFP-44 |
| 文件页数： | 3/88页 |
| 文件大小： | 1224K |
| 代理商： | SAH-C505-L |
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C505/C505C/C505A/C505CA
Data Sheet
7
12.00
RESET
4
I
RESET
A high level on this pin for two machine cycle while the
oscillator is running resets the device. An internal diffused
resistor to VSS permits power-on reset using only an
external capacitor to VDD.
P3.0-P3.7
5, 7-13
5
7
8
9
10
11
12
13
I/O
Port 3
is an 8-bit quasi-bidirectional port with internal pull-up
arrangement. Port 3 pins that have 1’s written to them are
pulled high by the internal pull-up transistors and in that
state can be used as inputs. As inputs, port 3 pins being
externally pulled low will source current (IIL, in the DC
characteristics) because of the internal pullup transistors.
The output latch corresponding to a secondary function
must be programmed to a one (1) for that function to operate
(except for TxD and WR). The secondary functions are
assigned to the pins of port 3 as follows:
P3.0 / RxD
Receiver data input (asynch.) or data
input/output (synch.) of serial interface
P3.1 / TxD
Transmitter data output (asynch.) or
clock output (synch.) of serial interface
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 2
Pin Definitions and Functions (cont’d)
Symbol
Pin Number
I/O
*)
Function
相关PDF资料 |
PDF描述 |
|---|---|
| SAH-C505A-L | 8-BIT, 20 MHz, MICROCONTROLLER, PQFP44 |
| SAK-C505A-4R | 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP44 |
| SAB-C505A-4E | 8-BIT, OTPROM, 20 MHz, MICROCONTROLLER, PQFP44 |
| SAB-C505A-L | 8-BIT, 20 MHz, MICROCONTROLLER, PQFP44 |
| SAF-C505A-4R | 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP44 |
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| SAH-C517A | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:8-bit CMOS MICROCONTROLLER |
| SAHC684M50R501 | 制造商:SHARMA 制造商全称:Sharma Electro Components,Inc 功能描述:Tantalum Capacitors |
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