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PDF SAF-C517A-4RM Data sheet ( Hoja de datos )

Número de pieza SAF-C517A-4RM
Descripción 8-Bit CMOS Microcontroller
Fabricantes Siemens Semiconductor Group 
Logotipo Siemens Semiconductor Group Logotipo



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Microcomputer Components
8-Bit CMOS Microcontroller
C517A
Data Sheet 10.97

1 page




SAF-C517A-4RM pdf
C517A
Note: Versions for extended temperature ranges – 40 °C to 110 °C (SAH-C517A) are available on
request. The ordering number of ROM types (DXXXX extensions) is defined after program
release (verification) of the customer.
Port 7
8-bit Analog/
Digital Input
Port 8
4-bit Analog/
Digital Input
XTAL1
XTAL2
ALE
PSEN
EA
RESET
PE/SWD
OWE
RO
HWPD
VAREF
VAGND
VCC VSS
C517A
MCL03318
Port 0
8-Bit Digital I/O
Port 1
8-Bit Digital I/O
Port 2
8-Bit Digital I/O
Port 3
8-Bit Digital I/O
Port 4
8-Bit Digital I/O
Port 5
8-Bit Digital I/O
Port 6
8-Bit Digital I/O
Figure 2
Logic Symbol
Additional Literature
For further information about the C517A the following literature is available:
Title
C517A 8-Bit CMOS Microcontroller User’s Manual
C500 Microcontroller Family
Architecture and Instruction Set User’s Manual
C500 Microcontroller Family - Pocket Guide
Ordering Number
B158-H7053-X-X-7600
B158-H6987-X-X-7600
B158-H6986-X-X-7600
Semiconductor Group
5
1997-10-01

5 Page





SAF-C517A-4RM arduino
C517A
Table 2
Pin Definitions and Functions (cont’d)
Symbol
P4.0 - P4.7
Pin Number
P-MQFP-100
64 - 66,
68 - 72
PE/SWD
67
RESET
73
VAREF
VAGND
P7.0 - P7.7
78
79
87 - 80
*) I = Input
O = Output
I/O*)
I/O
I
I
Function
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.
Power saving mode enable / Start watchdog timer
A low level at this pin allows the software to enter the power
saving modes (idle mode, slow down mode, and power
down mode). In case the low level is also seen during
reset, the watchdog timer function is off on default.
Usage of the software controlled power saving modes is
blocked, when this pin is held at 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. During hardware power down the
pullup resistor is switched off.
RESET
A low level on this pin for the duration of two machine
cycles while the oscillator is running resets the C517A. A
small internal pullup resistor permits power-on reset using
only a capacitor connected to VSS .
Reference voltage for the A/D converter
Reference ground for the A/D converter
Port 7
is an 8-bit unidirectional input port. Port pins can be used
for digital input, if voltage levels meet the specified input
high/low voltages, and for the lower 8-bit of the multiplexed
analog inputs of the A/D converter, simultaneously.
P7.0 - P7.7 AIN0 - AIN7 analog input 8 - 14
Semiconductor Group
11
1997-10-01

11 Page







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