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參數(shù)資料
| 型號(hào)： | SAF-C517A-4R24M |
| 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, 24 MHz, MICROCONTROLLER, PQFP100 |
| 文件頁數(shù)： | 11/67頁 |
| 文件大?。?/td> | 479K |
| 代理商： | SAF-C517A-4R24M |
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Semiconductor Group
11
1997-10-01
C517A
P4.0 - P4.7
64 - 66,
68 - 72
I/O
Port 4
is an 8-bit quasi-bidirectional I/O port with internal pull-up
resistors. Port 4 pins that have 1’s written to them are
pulled high by the internal pull-up resistors, and in that
state can be used as inputs. As inputs, port 4 pins being
externally pulled low will source current (
I
IL
, in the DC
characteristics) because of the internal pull-up resistors.
PE/SWD
67
I
Power saving mode enable / Start watchdog timer
A low level at this pin allows the software to enter the power
saving modes (idle mode, slow down mode, and power
down mode). In case the low level is also seen during
reset, the watchdog timer function is off on default.
Usage of the software controlled power saving modes is
blocked, when this pin is held at high level. A high level
during reset performs an automatic start of the watchdog
timer immediately after reset.
When left unconnected this pin is pulled high by a weak
internal pull-up resistor. During hardware power down the
pullup resistor is switched off.
RESET
73
I
RESET
A low level on this pin for the duration of two machine
cycles while the oscillator is running resets the C517A. A
small internal pullup resistor permits power-on reset using
only a capacitor connected to V
SS
.
Reference voltage
for the A/D converter
V
AREF
V
AGND
P7.0 - P7.7
78
–
79
–
Reference ground
for the A/D converter
87 - 80
Port 7
is an 8-bit unidirectional input port. Port pins can be used
for digital input, if voltage levels meet the specified input
high/low voltages, and for the lower 8-bit of the multiplexed
analog inputs of the A/D converter, simultaneously.
P7.0 - P7.7
AIN0 - AIN7
analog input 8 - 14
*) I = Input
O = Output
Table 2
Pin Definitions and Functions (cont’d)
Symbol
Pin Number
I/O*)
Function
P-MQFP-100
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SAB-C517A | 8-bit CMOS MICROCONTROLLER |
| SAF-C517A-LN | 8-bit CMOS MICROCONTROLLER |
| SAH-C517A | 8-bit CMOS MICROCONTROLLER |
| SAF-C517A | 8-bit CMOS MICROCONTROLLER |
| SAF-C517A-L | 8 BIT CMOS MICROCONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAF-C517A-4RM | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| SAF-C517A-L | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8 BIT CMOS MICROCONTROLLER |
| SAF-C517A-LM | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| SAF-C517A-LN | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-bit CMOS MICROCONTROLLER |
| SAFC517ALNTR | 制造商:Infineon Technologies AG 功能描述:MCU 8-bit C500 8051 CISC ROMLess 5V 84-Pin PLCC T/R |
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