PCF8534A datasheet(33/52 Pages) NXP

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PCF8534A

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Product data sheet

Rev. 6 — 25 July 2011

33 of 52

NXP Semiconductors

PCF8534A

Universal LCD driver for low multiplex rates

[1]

LCD outputs are open circuit; inputs at VSS or VDD; external clock with 50 % duty factor; I2C-bus inactive.

[2]

Not tested, design specification only.

[3]

The I2C-bus interface of PCF8534A is 5 V tolerant.

[4]

Cbpl = backplane capacitance.

[5]

Outputs measured individually and sequentially.

[6]

Csgm = segment capacitance.

LCD outputs

Output pins BP0, BP1, BP2 and BP3

VBP

voltage on pin BP

Cbpl = 35 nF

[4]

100

+100

RBP

resistance on pin BP

VLCD = 5 V

[5] -1.5



Output pins S0 to S59

voltage on pin S

Csgm = 35 nF

[6]

100

+100

resistance on pin S

VLCD = 5 V

[5] -

6.0

13.5



Table 19.

Static characteristics …continued

VDD = 1.8 V to 5.5 V; VSS = 0 V; VLCD = 2.5 V to 6.5 V; Tamb = 40 C to +85 C; unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

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