PCF8576CUSLASH2 datasheet(30/56 Pages) NXP

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PCF8576C_9

Product data sheet

Rev. 09 — 9 July 2009

30 of 56

NXP Semiconductors

PCF8576C

Universal LCD driver for low multiplex rates

11. Static characteristics

[1]

VLCD ≤ VDD − 3 V for 1⁄3 bias.

[2]

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

[3]

Resets all logic when VDD < VPOR.

[4]

Periodically sampled, not 100 % tested.

[5]

Outputs measured one at a time.

Table 19.

Static characteristics

VDD = 2.0 V to 6.0 V; VSS = 0 V; VLCD = VDD − 6.0 V; Tamb = −40 °C to +85 °C; unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Supplies

VDD

supply voltage

2.0

6.0

VLCD

LCD supply voltage

[1] VDD − 6.0

VDD − 2.0 V

IDD

supply current:

fclk = 200 kHz

[2] -

120

µA

IDD(lp)

low-power mode supply

current

VDD = 3.5 V; VLCD =0V; fclk = 35 kHz;

A0, A1 and A2 connected to VSS

µA

Logic

VIL

LOW-level input voltage

on pins CLK, SYNC, OSC,

A0 to A2 and SA0

VSS

0.3VDD

VIH

HIGH-level input voltage

on pins CLK, SYNC, OSC,

A0 to A2 and SA0

0.7VDD

-VDD

VOL

LOW-level output voltage

IOL = 0 mA

0.05

VOH

HIGH-level output voltage

IOH = 0 mA

VDD − 0.05 -

IOL

LOW-level output current

VOL = 1.0 V; VDD = 5.0 V;

on pins CLK and SYNC

leakage current

VI =VDD or VSS; on pins

CLK, SCL, SDA, A0 to A2 and SA0

−1-

µA

IL(OSC)

leakage current on pin OSC

VI =VDD

−1-

µA

Ipd

pull-down current

VI = 1.0 V; VDD = 5.0 V;

on pins A0 to A2 and OSC

150

µA

RSYNC_N

SYNC resistance

150

Ω

VPOR

power-on reset voltage

[3] -

1.0

1.6

input capacitance

[4] --

I2C-bus; pins SDA and SCL

VIL

LOW-level input voltage

VSS

0.3VDD

VIH

HIGH-level input voltage

0.7VDD

6.0

IOH(CLK)

HIGH-level output current on

pin CLK

VOH = 4.0 V; VDD = 5.0 V

−1-

IOL(SDA)

LOW-level output current on

pin SDA

VOL = 0.4 V; VDD = 5.0 V

LCD outputs

VBP

voltage on pin BP

Cbpl = 35 nF; on pins BP0 to BP3

−20

+20

voltage on pin S

Csgm = 5 nF; on pins S0 to S39

−20

+20

RBP

resistance on pin BP

VLCD =VDD − 5 V; on pins BP0 to BP3 [5] --

Ω

resistance on pin S

VLCD =VDD − 5 V; on pins S0 to S39

[5] -

7.5

Ω

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