PCF8562TT NXP Semiconductors, PCF8562TT Datasheet - Page 11

• Manufacturer Part Number: PCF8562TT
• Manufacturer: NXP Semiconductors

Specifications of PCF8562TT

• Operating Supply Voltage (typ): 2.5/3.3/5V
• Number Of Digits: 16
• Number Of Segments: 128
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Package Type: TSSOP
• Pin Count: 48
• 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: Compliant

NXP Semiconductors
PCF8562_2
Product data sheet
6.4.3 1 : 3 multiplex drive mode
When three backplanes are provided in the LCD, the 1 : 3 multiplex drive mode applies
(see
Fig 7. Waveforms for the 1 : 3 multiplex drive mode
Figure
a. Waveforms at driver
b. Resultant waveforms at LCD segment
V
V
state1
off(rms)
Sn 1
Sn 2
BP0
BP1
BP2
7).
Sn
(t) = V
= 0.333V
2V
2V
2V
2V
2V
2V
V
V
V
V
V
V
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
state 1
state 2
Sn
V
V
V
V
V
V
V
V
V
V
V
V
LCD
LCD
LCD
LCD
LCD
LCD
(t)
SS
SS
SS
SS
SS
SS
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
Rev. 02 — 22 January 2007
LCD
V
2V
2V
2V
2V
BP0
V
V
V
V
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
V
V
V
V
(t); V
LCD
LCD
LCD
LCD
0 V
0 V
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
/ 3
on(rms)
= 0.638V
T
frame
Universal LCD driver for low multiplex rates
LCD
; V
state2
(t) = V
Sn
(t)
state 1
state 2
V
001aac319
BP1
LCD segments
(t);
PCF8562
© NXP B.V. 2007. All rights reserved.
001aac318
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