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| 型号： | C515C-LM |
| 厂商： | INFINEON TECHNOLOGIES AG |
| 元件分类： | 8位微控制器 |
| 英文描述： | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| 中文描述： | 8位微控制器与2/4/8K字节在系统可编程闪存 |
| 文件页数： | 11/96页 |
| 文件大小： | 1285K |
| 代理商： | C515C-LM |
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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 (
I
IL
, 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
Symbol
Pin Definitions and Functions
(cont’d)
Pin Number
I/O
1)
Function
P-MQFP-80-1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| C515-LN | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| C515-LN/1RN | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| C515S-250MA | 制造商:COOPER BUSSMANN 功能描述:Fuse 0.25A 250V Slow Blow 2-Pin Axial Through Hole |
| C515S-2A | 制造商:Cooper Bussmann 功能描述: |
| C515S-375-R | 制造商:Cooper Bussmann 功能描述: |
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