MC1101A Ver la hoja de datos (PDF) - PMD
Número de pieza
componentes Descripción
Fabricante
MC1101A Datasheet PDF : 70 Pages
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IC
Pin Name
Pin #
CP
Data0
60
Data1
59
Data2
58
Data3
57
Data4
50
Data5
49
Data6
46
Data7
43
Data8
40
Data9
39
Data10
36
Data11
35
CP
DACLow0
64
DACLow1
63
DACLow2
62
DACLow3
61
CP
I/OAddr0
28
I/OAddr1
9
I/OAddr2
6
I/OAddr3
5
CP
PosSlct
31
CP
Convert
32
CP
I/OWrite
15
CP
Vcc
CP
GND
4, 22, 33
3, 34
Description/Functionality
Multi-purpose Data0-11. (Bi-directional). These pins have 3 functions:
1) Pins Data4-11 (8 bits total) are connected to the corresponding CPData4-11 pins on the
I/O chip, and are used to communicate between the CP and I/O chips
2) Pins Data0-11 hold the high 12 bits of the DAC output value when the output mode is set
to 16-bit DAC.
3) Pins Data0-11 input the high 12 bits of the parallel-word position data (-P version chipsets
only).
DACLow0-3 (output). These pins hold the lowest 4 bits of the 16 bit DAC output word when
DAC16 motor output mode is selected. In addition they input the low 4 bits of the parallel
word (-P version chipset only).
Multi-purpose Address0-3 (output). These pins are connected to the corresponding CPAddr0-
3 pins on the I/O chip. They have 2 functions; They provide addressing signals to facilitate
communication between the I/O chip and CP chip, and they are used during DAC data
decoding.
Parallel-word position-input device select (output). This pin selects the parallel word device(s)
for reading.
To read a parallel position word from an external device, the chipset loads DAC16Addr0-1
with the axis # and PosSlct is asserted low.
Note: Only valid for -P parts.
Parallel-word conversion start signal (output). This pin provides a signal which momentarily
strobes low at the end of the parallel word read sequence.
This signal is useful for starting A/D converters or for synchronizing external latch hardware
associated with the parallel-word read circuitry
Note: Only valid for -P parts.
Multi-purpose write (output). This pin is connected to CPWrite on the I/O chip. It has 2
functions:
1) It provides a control signal to the I/O chip to facilitate communication between the I/O chip
and CP chip.
2) It is used during DAC data decoding.
CP chip supply voltage pin. All of these pins must be connected to the supply voltage. Supply
voltage = 4.75 to 5,.25 V
CP chip ground pin. All of these pins must be connected to the power supply return.
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