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參數(shù)資料
| 型號(hào)： | SAF-C515A-LM |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, 18 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | METRIC, PLASTIC, QFP-80 |
| 文件頁數(shù)： | 56/58頁 |
| 文件大?。?/td> | 634K |
| 代理商： | SAF-C515A-LM |
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Semiconductor Group
7
1997-10-01
C515A
Table 1
Pin Denitions and Functions
Symbol
Pin Number
(P-MQFP-80)
I/O*)
Function
P4.0-P4.7
72-74,
76-80
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.
P4 also contains the external A/D converter control pin.
The output latch corresponding to a secondary function
must be programmed to a one (1) for that function to
operate. The secondary function is assigned to port 6 as
follows:
P4.0 / ADST
external A/D converter start pin
PE/SWD
75
I
Power Saving Mode Enable / Start Watchdog Timer
A low level on this pin allows the software to enter the
power down, idle, and slow down mode. In case the low
level is also seen during reset, the watchdog timer
function is off on default.
Use of the software controlled power saving modes is
blocked when this pin is held on 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.
Note: If PE/SWD is low and VAREF is low the oscillator
watchdog is disabled (testmode)!
RESET
1I
RESET
A low level on this pin for the duration of two machine
cycles while the oscillator is running resets the C515A.
A small internal pullup resistor permits power-on reset
using only a capacitor connected to VSS .
VAREF
3
–
Reference Voltage for the A/D converter
VAGND
4
–
Reference Ground for the A/D converter
P6.0-P6.7
12-5
I
Port 6
is an 8-bit unidirectional input port to the A/D converter.
Port pins can be used for digital input, if voltage levels
simultaneously meet the specifications for high/low input
voltages and for the eight multiplexed analog inputs.
*) I = Input
O = Output
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| SAFC515C8EM | 制造商:Infineon Technologies AG 功能描述:8bit microcontrollerSAF-C515C-8EM MQFP80 |
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| SAF-C515C-8EM CA | 功能描述:8位微控制器 -MCU 8 BIT OTP RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| SAFC515C8EM-BC | 制造商:Infineon Technologies AG 功能描述:MCU 8-Bit C500 8051 CISC 64KB EPROM 5V 80-Pin MQFP |
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