PCF8579TSLASH1 datasheet(11/41 Pages) NXP

Part #	PCF8579T/1

Description	LCD column driver for dot matrix graphic displays

PDF	41 Pages

Scroll/Zoom	100%

Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

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11 / 41 page

PCF8579_5

Product data sheet

Rev. 05 — 11 May 2009

11 of 41

NXP Semiconductors

PCF8579

LCD column driver for dot matrix graphic displays

Vstate1(t) = C1(t) − R1(t).

Vstate2(t) = C2(t) − R2(t).

Fig 7.

LCD drive mode waveforms for 1:8 multiplex rate

msa840

ROW 1

R1 (t)

ROW 2

R2 (t)

COL 1

C1 (t)

COL 2

C2 (t)

dot matrix

1:8 multiplex rate

0.261 Voper

0 V

0.261 Voper

0 V

Voper

0.478 Voper

state 1 (OFF)

state 2 (ON)

VDD

VLCD

VDD

VLCD

VDD

VLCD

VDD

VLCD

Tfr

Voper

Vstate 1(t)

Vstate 2(t)

on RMS

()

oper

-----------------------

---

–

()

------------------------

0.430

off RMS

()

oper

------------------------

–

()

()2

-------------------------------

0.297

PCF8579T/1 Datasheet(PDF) 11 Page - NXP Semiconductors

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