PCF8576DT NXP Semiconductors, PCF8576DT Datasheet - Page 13

• Manufacturer Part Number: PCF8576DT
• Manufacturer: NXP Semiconductors

Specifications of PCF8576DT

• Operating Supply Voltage (typ): 2.5/3.3/5V
• Number Of Digits: 20
• Number Of Segments: 160
• Package Type: TSSOP
• Pin Count: 56
• Mounting: Surface Mount
• Power Dissipation: 400mW
• Frequency (max): 400KHz
• Operating Supply Voltage (min): 1.8V
• Operating Supply Voltage (max): 5.5V
• Lead Free Status / Rohs Status: Supplier Unconfirmed

NXP Semiconductors
PCF8576D_9
Product data sheet
Fig 8.
(1) V
(2) V
(3) V
(4) V
Waveforms for the 1:2 multiplex drive mode with
state1
on(RMS)
state2
off(RMS)
S n+1
state 1
state 2
BP0
BP1
S n
(t) = V
(t) = V
= 0.333V
= 0.745V
Sn
Sn+1
(t)
V
2V
V
V
V
2V
V
V
V
2V
V
V
V
2V
V
V
V
2V
V
V
2V
V
Rev. 09 — 25 August 2009
0 V
0 V
(t)
V
2V
V
V
2V
V
LCD
LCD
SS
LCD
LCD
SS
LCD
LCD
SS
LCD
LCD
SS
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
V
/ 3
BP0
/ 3
/ 3
/ 3
/ 3
/ 3
V
.
.
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
BP1
/ 3
/ 3
(t).
(t).
(a) Waveforms at driver.
(b) Resultant waveforms
Universal LCD driver for low multiplex rates
at LCD segment.
T
fr
1
3
bias
mgl747
state 1
state 2
LCD segments
PCF8576D
© NXP B.V. 2009. All rights reserved.
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