Matrix-orbital LCD2041 Manual de usuario descargar pdf (Pagina 14)

WARNING Do not apply voltage through pin 9 of the DB-9 connector

AND through the Power/Data Connector at the same time.

2.2 Power/Data Connector

The Power/Data Connector provides a standard connector for powering the display module. The LCD2041

requires ﬁve volts for the standard display module, between nine to ﬁfteen for the wide voltage (V) and be-

tween nine to thirty-ﬁve volts for the wide voltage with efﬁcient power supply module (VPT). The voltage is

applied through pins one and four of the four pin Power/Data connector. Pins two and three are reserved for

serial transmission, using either the RS-232/TTL or the I

C protocol, depending on what has been selected

by the Protocol Select Jumpers. Pins two and three may be reversed by changing the Legacy Connector

Jumpers in order to be compatible with previous PCB revisions.

Pin 1 PWR (See table 1)

2 Rx \ SCL (I

C clock)

3 Tx \ SDA (I

C data)

4 GND

Figure 15: Power Connector and Pin out

Table 1: Power Requirements

Standard -V -VPT

Supply Voltage +5Vdc ±0.25V +9V to +15V +9V to +35V

Supply Current 11 mA typical

Supply Backlight Current 160 mA typical

WARNINGS

• Do not apply any power with reversed polarization.

• Do not apply any voltage other than the speciﬁed voltage.

Matrix Orbital LCD2041 10

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 54 55

Sin comentarios

Matrix-orbital LCD2041 Manual de usuario Pagina 14