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PDF SAB-C541U-1EN Data sheet ( Hoja de datos )
| Número de pieza | SAB-C541U-1EN | |
| Descripción | 8-Bit CMOS Microcontroller | |
| Fabricantes | Siemens Semiconductor Group | |
| Logotipo |  |
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Microcomputer Components
8-Bit CMOS Microcontroller
C540U / C541U
Data Sheet 10.97
1 page  
C540U
C541U
XTAL2
XTAL1
ALE
PSEN
EA
RESET
D+
D-
V CC V SS
C540U
C541U
Port 0
8-Bit Digital I / O
Port 1
P-LCC-44 : 6-Bit Digital I / O
P-SDIP-52 : 8-Bit Digital I / O
Port 2
8-Bit Digital I / O
Port 3
8-Bit Digital I / O
MCL03374
Figure 2
Logic Symbol
Additional Literature
For further information about the C540U/C541U the following literature is available :
Title
C540U/C541U 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-H????-X-X-7600
B158-H6987-X-X-7600
B158-H6986-X-X-7600
Semiconductor Group
5
1997-10-01
5 Page 
C540U
C541U
Table 2
Pin Definitions and Functions (cont’d)
Symbol
Pin Numbers
I/O*) Function
P-LCC-44 P-SDIP-52
P0.0 - P0.7 44 - 36 50 - 43
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.
VCCU
1
1
– Supply voltage
for the on-chip USB transceiver circuitry.
VSSU
2
2
– Ground (0V)
for the on-chip USB transceiver circuitry.
VCC
8, 23
10, 26
– Supply voltage
for ports and internal logic circuitry during normal,
idle, and power down mode.
VSS
9, 22
11, 25
– Ground (0V)
for ports and internal logic circuitry during normal,
idle, and power down mode.
*) I = Input
O = Output
Semiconductor Group
11
1997-10-01
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet SAB-C541U-1EN.PDF ] | |
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