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| 型号： | C515A |
| 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： | 7/58页 |
| 文件大小： | 634K |
| 代理商： | C515A |
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Semiconductor Group
7
1997-10-01
C515A
Table 1
Pin Definitions 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 (
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
I
IL
, in the DC
PE/SWD
75
I
Power Saving Mode
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 V
watchdog is disabled (testmode)!
Enable / Start Watchdog Timer
AREF
is low the oscillator
RESET
1
I
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 V
SS
.
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
相关PDF资料 |
PDF描述 |
|---|---|
| C515C | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| C515C-8EM | RW-D Series - Econoline Regulated DC-DC Converters; Input Voltage (Vdc): 48V; Output Voltage (Vdc): 05V; Power: 2W; DIP24 Low Profile Package; Dual Ouputs from a Single Supply; 2:1 Wide Range Voltage Input; 3kVDC Isolation; UL94V-0 Package Material; Continuous Short Circuit Protection; Low profile 7mm Height; Approved for Medical Applications; Efficiency to 85% |
| C515C-8RM | RW-S Series - Econoline Regulated DC-DC Converters; Input Voltage (Vdc): 48V; Output Voltage (Vdc): 05V; Power: 2W; DIP24 Low Profile Miniature Package; 1kVDC Isolation; Feedback Regulated Output; 2:1 Wide Range Voltage Input; Continuous Short Circuit Protection; Less than 7mm Height; SMD Pinning Option; Efficiency to 87% |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| C515A_9708 | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| C515C | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:8-Bit Single-Chip Microcontroller |
| C515C_9711 | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| C515C-8E | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
| C515C-8EM | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:8-Bit Single-Chip Microcontroller |
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