DDM 4

4 Digit LCD Data Display
LED Backlighting
Only Three Control Lines
CMOS/TTL Compatible
Low Power

The DDM 4 is a low power 4 digit data display module with 12.5mm (0.5") digit height. Inputs are CMOS and TTL compatible. Using three inputs Clock, Data In and Load, it is possible to display 0 to 9 and A to F or any other combination of the segments. The display can be panel mounted using the bezel and window. Connection to the meter is via solder pads. Visit www.mdm1.info, the unofficial developers site for software downloads and hardware advice. This is a popular part, normally stocked in high quantity and suitable for new designs.

Specification	Min.	Typ.	Max.	Unit
Supply voltage	3.0	5	8.5	V d.c.
Supply Current		40	60	uA
Backlight supply voltage		5	5.5	V d.c.
Backlight supply current		50	75	mA
Operating temperature range	0		50	°C
Input High level	0.5Vdd		Vdd	V
Input Low level	0		0.1Vdd	V
Input leakage current		0.01	±10	uA
Input capacitance			5.0	pF