COP472WM-3 National Semiconductor, COP472WM-3 Datasheet - Page 4

• Manufacturer Part Number: COP472WM-3
• Description: IC, LCD CONTROLLER, 36SEG, 5.5V, SOIC-20
• Manufacturer: National Semiconductor

Specifications of COP472WM-3

• Supply Current: 250µA
• No. Of Digits / Alpha: 4.5
• No. Of Segments: 36
• Meter Display Type: LCD
• Interface Type: Triplexed
• Supply Voltage Range: 3V To 5.5V
• Driver Case Style: SOIC
• No. Of Pins: 20
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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Order Number COP472MW-3 or COP472N-3
See NS Package Number M20A or N20A
Dual-In-Line Package
Top View
FIGURE 5 Typical Display Internal Connections
FIGURE 4 Backplane and Segment Waveforms
FIGURE 3 Serial Load Timing Diagram
FIGURE 2 Connection Diagram
TL DD 6932– 2
Epson LD-370
4
CS
V
GND
DI
SK
BP
BP
BP
SA1 E SC4
DD
A
B
C
Pin
Chip select
Power supply (display voltage)
Ground
Serial data input
Serial clock input
Display backplane A (or oscillator in)
Display backplane B
Display backplane C (or oscillator out)
12 multiplexed outputs
TL DD 6932 – 3
TL DD 6932– 5
TL DD 6932– 4
Description