Features Direct interface to TRIPLEX LCD Low power dissipation (100 µW typ.) Low cost Compatible with all COPS processors Needs no refresh from processor On-chip oscillator and latches Expandable to longer displays Operates from display voltage MICROWIRE™ compatible serial I/O 20-pin Dual-In-Line package and 20-pin SO Description The COP472-3 Liquid Crystal Display (LCD) Controller is a peripheral member of the COPS™ family, fabricated using CMOS technology. The COP472-3 drives a multiplexed liquid crystal display directly. Data is loaded serially and is held in internal latches. The COP472-3 contains an on-chip oscillator and generates all the multi-level waveforms for backplanes and segment outputs on a triplex display. One COP472-3 can drive 36 segments multiplexed as 3 x 12 (4½ digit display). Two COP472-3 devices can be used together to drive 72 segments (3 x 24) which could be an 8½ digit display.

Datasheets

Title		Size	Date	Other Language
	COP472-3 COP472-3 Liquid Crystal Display Controller	143 Kbytes	26-Apr-96

Application Notes

Title		Size	Date	Other Language
	AN-749: Application Note 749	180 Kbytes	8-Mar-96

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
COP472N-3/NOPB COP472N-3 RoHS Status	MDIP	Full production Lead Time: 16 weeks	Distributor Region Qty ARROW Worldwide 12 DIGI-KEY Worldwide 0 MOUSER Worldwide 94 TAYLOR Americas 12	$2.00 each at 1K+ pcs	rail of 18
COP472WM-3/NOPB COP472WM-3 RoHS Status	SOIC WIDE	Full production Lead Time: 16 weeks	Distributor Region Qty ARROW Worldwide 98 AVNET-EM Worldwide 80 DIGI-KEY Worldwide 0 MOUSER Worldwide 216 TAYLOR Americas 98	$2.00 each at 1K+ pcs	rail of 36

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for COP472-3.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for COP472-3 is located at RoHS Status.

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
COP472N-3/NOPB COP472N-3	1424.65 1429.999	MDIP	20	1 1	NA NA	Detail	N/A	N/A	NSUZXYYTTE# COP472N-3
COP472WM-3/NOPB COP472WM-3	518.972 520.002	SOIC WIDE	20	3 2A	260 220	Detail	N/A	N/A	NSUZXYTTE# COP472WM-3

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for COP472-3.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for COP472-3 is located at RoHS Status.

CAD Symbols and Models N/A

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
COP472N-3	CMOS	0	20300	0	0	2785000	2	790251354
COP472WM-3	CMOS	0	20300	0	0	2785000	2	790251354

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for COP472-3.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for COP472-3 is located at RoHS Status.