MM5452V National Semiconductor, MM5452V Datasheet - Page 7

• Manufacturer Part Number: MM5452V
• Description: LCD DISPLAY DRIVER, 5452, PLCC44
• Manufacturer: National Semiconductor

Specifications of MM5452V

• Module Configuration: CMOS
• Supply Current: 40µA
• No. Of Segments: 32
• Meter Display Type: LCD
• Supply Voltage Range: 3V To 10V
• Driver Case Style: LCC
• No. Of Pins: 44
• Operating Temperature Range: -40°C To
• No. Of Digits / Alpha: 4.1/2
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Functional Description
converter or resistor array. The result of this comparison is
clocked into the MM5452, MM5453. The next clock pulse
increments the staircase and clocks the new data in.
With a buffer amplifier, the same staircase waveform can be
used for many displays. The digital-to-analog converter need
Data is high until staircase
>
input
(Continued)
FIGURE 9. Four Wire Remote Display
FIGURE 10. Analog Display
7
not be linear; logarithmic or other non-linear functions can be
displayed by using weighted resistors or special DACs. This
system can be used for status indicators, spectrum analyz-
ers, audio level and power meters, tuning indicators, and
other applications.
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