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参数资料
| 型号： | C540U |
| 厂商： | SIEMENS AG |
| 元件分类： | 8位微控制器 |
| 英文描述： | 8-Bit CMOS Microcontroller |
| 中文描述： | 8位CMOS微控制器 |
| 文件页数： | 8/65页 |
| 文件大小： | 427K |
| 代理商： | C540U |
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Semiconductor Group
8
1997-10-01
C540U
C541U
Table 2
Pin Definitions and Functions
Symbol
Pin Numbers
I/O*) Function
P-LCC-44
P-SDIP-52
D+
3
3
I/O
USB D+ Data Line
The pin D+ can be directly connected to USB cable
(transceiver is integrated on-chip).
D-
4
4
I/O
USB D- Data Line
The pin D- can be directly connected to USB cable
(transceiver is integrated on-chip).
P1.0 - P1.4
5 - 7,
12, 34, 44
5
6
7
12
34
44
–
–
7 - 9, 14, 41,
51, 15, 40
7
8
9
13
41
51
15
40
I/O
Port 1
is an 6-bit (P-LCC-44) or 8-bit (P-SDIP-52) quasi-
bidirectional I/O port with internal pullup resistors.
Port 1 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 1 pins
being externally pulled low will source current (
in the DC characteristics) because of the internal
pullup resistors.
Port 1 also contains two outputs with LED drive
capability as well as the four pins of the SSC
(C541U only). The output latch corresponding to a
secondary function must be programmed to a one
(1) for that function to operate (except when used
for the compare functions). The secondary
functions are assigned to the port 1 pins as follows :
P1.0 / LED0 LED0 output
P1.1 / LED1 LED1 output
P1.2 / SCLK SSC Master Clock Output /
SSC Slave Clock Input (C541U only)
P1.3 / SRI
SSC Receive Input (C541U only)
P1.4 / STO
SSC Transmit Output (C541U only)
P1.5 / SLS
SSC Slave Select Inp. (C541U only)
P1.6
(P-SDIP-52 only)
P1.7
(P-SDIP-52 only)
I
IL
,
RESET
10
12
I
RESET
A high level on this pin for the duration of two
machine cycles while the oscillator is running
resets the C540U/C541U. A small internal pulldown
resistor permits power-on reset using only a
capacitor connected to V
CC
.
*) I = Input
O = Output
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相关代理商/技术参数 |
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|---|---|
| C540U_1 | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| C541 | 制造商:POWERBOX 制造商全称:Powerbox 功能描述:250 WATTS (AC) DC/D CSINGLE OUTPUT |
| C5410 | 制造商:VECTRON 制造商全称:Vectron International, Inc 功能描述:Base Stations Test Equipment Switching |
| C54105-000 | 制造商:TE Connectivity 功能描述:VARISTOR 27V 1KA DISC 14MM 制造商:TE Connectivity 功能描述:VARISTOR 27VDC 14MM 10% LEADED 制造商:TE CONNECTIVITY RAYCHEM-POLYSWITCH 功能描述:Var MOV 17VAC 22VDC 1000A 27V Thru-Hole Bulk |
| C541-06 | 制造商:Molex 功能描述: |
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