PCF8576CU datasheet(8/44 Pages) PHILIPS

8 / 44 page

1998 Jul 30

Philips Semiconductors

Product speciﬁcation

Universal LCD driver for low multiplex

rates

PCF8576C

FUNCTIONAL DESCRIPTION

The PCF8576C is a versatile peripheral device designed

to interface to any microprocessor/microcontroller to a

wide variety of LCDs. It can directly drive any static or

multiplexed LCD containing up to four backplanes and up

to 40 segments. The display configurations possible with

the PCF8576C depend on the number of active backplane

outputs required; a selection of display configurations is

given in Table 1.

All of the display configurations given in Table 1 can be

implemented in the typical system shown in Fig.4.

The host microprocessor/microcontroller maintains the

2-line I2C-bus communication channel with the

PCF8576C. The internal oscillator is selected by tying

OSC (pin 6) to VSS (pin 11). The appropriate biasing

voltages for the multiplexed LCD waveforms are

generated internally. The only other connections required

to complete the system are to the power supplies (VDD,

VSS and VLCD) and the LCD panel chosen for the

application.

Table 1 Selection of display conﬁgurations

NUMBER OF

7-SEGMENTS NUMERIC

14-SEGMENTS

ALPHANUMERIC

DOT MATRIX

BACKPLANES SEGMENTS

DIGITS

INDICATOR

SYMBOLS

CHARACTERS

INDICATOR

SYMBOLS

160

160 dots (4

× 40)

120

120 dots (3

× 40)

80 dots (2

× 40)

40 dots (1

× 40)

Fig.4 Typical system configuration.

handbook, full pagewidth

HOST

MICRO-

PROCESSOR/

MICRO-

CONTROLLER

2CB

SDA

SCL

OSC

17 to 56

13 to 16

512

910

40 segment drives

4 backplanes

LCD PANEL

(up to 160

elements)

PCF8576CT

SA0 V

LCD

MBE524

PCF8576CU 데이터시트(PDF) 8 Page - NXP Semiconductors

PCF8576CU 데이터시트(HTML) 8 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44

데이터시트 다운로드

링크 URL