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| 型號： | SAF-C515C-8EMCA |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | PLASTIC, MQFP-80 |
| 文件頁數(shù)： | 3/97頁 |
| 文件大?。?/td> | 1298K |
| 代理商： | SAF-C515C-8EMCA |
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C515C
Data Sheet
7
2003-02
P3.0-P3.7
15-22
15
16
17
18
19
20
21
22
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 (
IIL, 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
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
Table 2
Pin Definitions and Functions (cont’d)
Symbol
Pin Number
I/O1) Function
P-MQFP-80-1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAFC515C8EMCAT | 制造商:Infineon Technologies AG 功能描述:MCU 8-bit C500 8051 CISC 64KB EPROM 5V 80-Pin MQFP T/R |
| SAF-C515C-8EMCATR | 制造商:Rochester Electronics LLC 功能描述: |
| SAFC515C8EMCAX | 制造商:Infineon Technologies AG 功能描述:MCU 8-Bit C500 8051 CISC 64KB EPROM 5V 80-Pin MQFP |
| SAF-C515C-8EM-CAXT | 制造商:Infineon Technologies AG 功能描述: |
| SAF-C515C-8RM | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
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