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MC145004 bảng dữ liệu(PDF) 1 Page - Motorola, Inc

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Giải thích chi tiết về linh kiện  128 SEGMENT LCD DRIVERS CMOS
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nhà sản xuất  MOTOROLA [Motorola, Inc]
Trang chủ  http://www.freescale.com
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Product Preview
128 Segment LCD Drivers
CMOS
The MC145003/5004 are 128–segment, multiplexed–by–four LCD Drivers.
The two devices are functionally the same except for their data input proto-
cols. The MC145003 uses an SPI data input protocol which is directly com-
patible with that of the MC6805 family of microcomputers. Using a minimal
amount of software (see example), the device may be interfaced to the
MC68HCXX product families. The MC145004 has a IIC interface and has es-
sentially the same protocol, except that the device sends an acknowledge bit
back to the transmitter after each eight–bit byte is received. MC145004 also
has a “read mode”, whereby data sent to the device may be retrieved via the
IIC bus.
The MC145003/MC145004 drives the liquid–crystal displays in a multi-
plexed–by–four configuration. The device accepts data from a microproces-
sor or other serial data source to drive one segment per bit. The chip does not
have a decoder, allowing for the flexibility of formatting the segment data
externally.
Devices are independently addressable via a two–wire (or three–wire)
communication link which can be common with other MC145003/MC145004
and/or other peripheral devices.
• Drives 128 Segments Per Package
• Devices May Be Cascaded for Larger LCD Applications
• May Be Used with the Following LCDs: Segmented Alphanumeric,
Bar Graph, Dot Matrix, Custom
• Quiscent Supply Current: 85 µA @ 2.8 V VDD
• Operating Voltage Range: 2.8 to 5.5 V
• Operating Temperature Range: – 40 to 85°C
• Separate Access to LCD Drive Section’s Supply Voltage to Allow for
Temperature Compensation
• See Application Notes AN1066 and AN442
This document contains information on a new product under development. Motorola reserves the right to change or discontinue this product without notice.
Order this document
by MC145003/D
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
FP32
FP31
FP30
FP29
FP28
FP27
FP26
FP25
FP24
FP23
FP22
FP21
FP20
MC145003
MC145004
QFP
FU SUFFIX
CASE 848B
ORDERING INFORMATION
MC145003FU
QFP
MC145004FU
QFP
1
2
3
4
5
6
7
8
9
10
11
12
13
PIN ASSIGNMENT
14 15 16 17 18 19 20 21 22 23 24 25 26
52 51 50 49 48 47 46 45 44 43 42 41 40
39
38
37
36
35
34
33
32
31
30
29
28
27
Din
DCLK
FS
FP1
FP2
FP3
FP4
FP5
FP6
FP7
FP8
FP9
FP10
NC = NO CONNECTION
1
52
BLOCK DIAGRAM
128–BIT LATCH
FS
LCD VOLTAGE
WAVEFORM
AND TIMING
GENERATOR
FRAME
SYNC
GENERATOR
OSCILLATOR
128–BIT SHIFT REGISTER
OSC2
OSC1
POR
DRIVERS
DRIVERS
128 – 32
MULTIPLEX
A2
A0
A1
ENB
DCLK
Din
VLCD
BP1–BP4
FP1–FP32
© Motorola, Inc. 1994
REV 1
12/94


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