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PDF SAB-C515A-L24M Data sheet ( Hoja de datos )

Número de pieza SAB-C515A-L24M
Descripción 8-Bit CMOS Microcontroller
Fabricantes Siemens Semiconductor Group 
Logotipo Siemens Semiconductor Group Logotipo



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No Preview Available ! SAB-C515A-L24M Hoja de datos, Descripción, Manual

Microcomputer Components
8-Bit CMOS Microcontroller
C515A
Data Sheet 10.97

1 page




SAB-C515A-L24M pdf
C515A
XTAL1
XTAL2
ALE
PSEN
EA
RESET
PE / SWD
HWPD
V AREF
V AGND
V CC V SS
C515A
Port 0
8-Bit Digit. I / O
Port 1
8-Bit Digit. I / O
Port 2
8-Bit Digit. I / O
Port 3
8-Bit Digit. I / O
Port 4
8-Bit Digit. I / O
Port 5
8-Bit Digit. I / O
Port 6
8-Bit Analog /
Digital Input
MCL03240
Figure 2
Logic Symbol
Additional Literature
For further information about the C515A the following literature is available:
Title
C515A 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-H7051-X-X-7600
B158-H6987-X-X-7600
B158-H6986-X-X-7600
Semiconductor Group
5
1997-10-01

5 Page





SAB-C515A-L24M arduino
C515A
Table 1
Pin Definitions and Functions (cont’d)
Symbol
EA
P0.0-P0.7
P5.0-P5.7
HWPD
N.C.
*) I = Input
O = Output
Pin Number I/O*) Function
(P-MQFP-80)
49 I External Access Enable
When held high, the C515A executes instructions from
the internal ROM (C515A-4R) as long as the PC is less
than 8000H. When held low, the C515A fetches all
instructions from external program memory. For the
C515A-L this pin must be tied low.
52-59
I/O Port 0
is an 8-bit open-drain bidirectional I/O port. Port 0 pins
that have 1's written to them float, and in that state can
be used as high-impedance inputs.
Port 0 is also the multiplexed low-order address and
data bus during accesses to external program and data
memory. In this application it uses strong internal pullup
resistors when issuing 1's. Port 0 also outputs the code
bytes during program verification in the C515A-4R.
External pullup resistors are required during program
verification.
67-60
I/O Port 5
is an 8-bit quasi-bidirectional I/O port with internal pullup
resistors. Port 5 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 5 pins being
externally pulled low will source current (I IL, in the DC
characteristics) because of the internal pullup resistors.
69 I Hardware Power Down
A low level on this pin for the duration of one machine
cycle while the oscillator is running resets the C515A. A
low level for a longer period will force the C515A into
Hardware Power Down Mode with the pins floating.
2, 13, 14, 23, –
46, 50, 51, 68,
70, 71
Not connected
These pins of the P-MQFP-80 package need not be
connected.
Semiconductor Group
11
1997-10-01

11 Page







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