PCF8576CT NXP Semiconductors, PCF8576CT Datasheet - Page 37
PCF8576CT
Manufacturer Part Number
PCF8576CT
Description
Manufacturer
NXP Semiconductors
Datasheet
1.PCF8576CT.pdf
(56 pages)
Specifications of PCF8576CT
Operating Supply Voltage (typ)
2.5/3.3/5V
Number Of Digits
20
Number Of Segments
160
Package Type
VSO
Pin Count
56
Mounting
Surface Mount
Power Dissipation
400mW
Frequency (max)
315KHz
Operating Supply Voltage (min)
2V
Operating Supply Voltage (max)
6V
Lead Free Status / Rohs Status
Compliant
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NXP Semiconductors
PCF8576C_9
Product data sheet
Fig 30. Synchronization of the cascade for the various PCF8576C drive modes
Excessive capacitive coupling between SCL or CLK and SYNC will cause erroneous
synchronization. If this is a problem you can increase the capacitance of the SYNC line (e.g. by an
external capacitor between SYNC and V
can be countered by an external pull-up resistor.
(1/2 bias)
(1/3 bias)
(1/3 bias)
(1/3 bias)
BP0
SYNC
SYNC
SYNC
SYNC
BP0
BP0
BP0
BP0
Rev. 09 — 9 July 2009
(b) 1:2 multiplex drive mode.
(c) 1:3 multiplex drive mode.
(d) 1:4 multiplex drive mode.
(a) static drive mode.
DD
T
Universal LCD driver for low multiplex rates
fr
.) Degradation of the positive edge of the SYNC pulse
=
f
1
fr
PCF8576C
mgl755
© NXP B.V. 2009. All rights reserved.
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