IC DVR LCD 32 SEG DISPLAY 44PLCC

MM5452V/NOPB

Manufacturer Part NumberMM5452V/NOPB
DescriptionIC DVR LCD 32 SEG DISPLAY 44PLCC
ManufacturerNational Semiconductor
MM5452V/NOPB datasheet
 


Specifications of MM5452V/NOPB

Display TypeLCDConfiguration7 Segment + DP, Alphanumeric & Bar Graph
InterfaceSerialDigits Or Characters4.5 Digits
Voltage - Supply3 V ~ 10 VOperating Temperature-40°C ~ 85°C
Mounting TypeSurface MountPackage / Case44-PLCC
Operating Supply Voltage (typ)3.3/5/9VNumber Of Digits4.5
Number Of Segments32Operating Temperature (min)-40C
Operating Temperature (max)85COperating Temperature ClassificationIndustrial
Package TypePLCCPin Count44
MountingSurface MountPower Dissipation350mW
Frequency (max)1MHzOperating Supply Voltage (min)3V
Operating Supply Voltage (max)10VLead Free Status / RoHS StatusLead free / RoHS Compliant
Current - Supply-Other names*MM5452V
*MM5452V/NOPB
MM5452V
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MM5452/MM5453
Liquid Crystal Display Drivers
General Description
The MM5452 is a monolithic integrated circuit utilizing CMOS
metal gate, low threshold enhancement mode devices. It is
available in a 40-pin molded package. The chip can drive up
to 32 segments of LCD and can be paralleled to increase this
number. The chip is capable of driving a 4½-digit 7-segment
display with minimal interface between the display and the
data source.
The MM5452 stores display data in latches after it is clocked
in, and holds the data until new display data is received.
Block Diagram
© 2008 National Semiconductor Corporation
Features
Serial data input
No load signal required
DATA ENABLE (MM5452)
Wide power supply operation
TTL compatibility
32 or 33 outputs
Alphanumeric and bar graph capability
Cascaded operation capability
Applications
COPS™ or microprocessor displays
Industrial control indicator
Digital clock, thermometer, counter, voltmeter
Instrumentation readouts
Remote displays
FIGURE 1.
6137
December 17, 2008
613701
www.national.com

MM5452V/NOPB Summary of contents

  • Page 1

    ... The MM5452 stores display data in latches after it is clocked in, and holds the data until new display data is received. Block Diagram © 2008 National Semiconductor Corporation Features ■ Serial data input ■ ...

  • Page 2

    ... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Voltage at Any Pin, Referenced to Gnd Storage Temperature Power Dissipation at 25°C Power Dissipation at 70°C Junction Temperature Lead Temperature (Soldering, 10s) ...

  • Page 3

    Connection Diagrams Top View Order Number MM5452N See NS Package Number N40A   Top View Order Number MM5452V See NS Package Number V44A 613702 Top View Order Number MM5453N See NS Package Number N40A 613711 Top View Order Number MM5453V ...

  • Page 4

    Functional Description The MM5452 is specifically designed to operate 4½-digit 7- segment displays with minimal interface with the display and the data source. Serial data transfer from the data source to the display driver is accomplished with 2 signals, serial ...

  • Page 5

    Consult LCD manufacturer’s data sheet for specific pinouts. FIGURE 4. Typical 4½-Digit Display Application 5 613706 www.national.com ...

  • Page 6

    R for the oscillator input is 9 kΩ time constant of approximately 4.91 × 10 between 30 Hz and 150 Hz. Figure 7 shows a four wire remote display that takes advan- tage ...

  • Page 7

    With a buffer amplifier, the same staircase waveform can be used for many displays. The digital-to-analog converter need not be linear; logarithmic or other non-linear functions can be displayed by using weighted resistors or special DACs. This Data is high ...

  • Page 8

    Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 40–Pin Molded Dual-In-Line Package (N) Order Number MM5452N or MM5453N NS Package Number N40A 44–Pin Plastic Chip Carrier (V) Order Number MM5452V or MM5453V NS Package Number V44A 8 ...

  • Page 9

    Notes 9 www.national.com ...

  • Page 10

    ... For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www ...