PCF8576 datasheet(28/44 Pages) PHILIPS

28 / 44 page

2001 Oct 02

Philips Semiconductors

Product speciﬁcation

Universal LCD driver for low multiplex rates

PCF8576

10 DC CHARACTERISTICS

VDD = 2 to 9 V; VSS =0V; VLCD =VDD − 2VtoVDD − 9 V; Tamb = −40 to +85 °C; unless otherwise speciﬁed.

Notes

1. VLCD ≤ VDD − 3 V for 1⁄3bias.

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.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Supplies

VDD

supply voltage

−

VLCD

LCD supply voltage

note 1

VDD − 9

−

VDD − 2V

IDD

supply current

note 2

normal mode

fclk = 200 kHz

−−

180

µA

power-saving mode

fclk = 35 kHz; VDD = 3.5 V;

VLCD = 0 V; A0, A1 and A2

connected to VSS

−−

µA

Logic

VIL

LOW-level input voltage

VSS

−

0.3VDD

VIH

HIGH-level input voltage

0.7VDD

−

VDD

VOL

LOW-level output voltage

IOL =0mA

−−

0.05

VOH

HIGH-level output voltage

IOH =0mA

VDD − 0.05 −−

IOL1

LOW-level output current

CLK, SYNC

VOL =1V; VDD =5V

−−

IOH1

HIGH-level output current CLK

VOH =4V; VDD =5V

−−

IOL2

LOW-level output current

SDA and SCL

VOL = 0.4 V; VDD =5V

−−

IL1

leakage current SA0, A0 to A2,

CLK, SDA and SCL

VI =VDD or VSS

−−

µA

IL2

leakage current OSC

VI =VDD

−−

µA

Ipd

A0, A1, A2 and OSC pull-down

current

VI =1V; VDD = 5 V

150

µA

RSYNC

pull-up resistor (SYNC)

150

Ω

VPOR

Power-on reset voltage level

note 3

−

1.0

1.6

input capacitance

note 4

−−

7pF

LCD outputs

VBP

DC voltage component BP0 to BP3

CBP =35nF

−

DC voltage component S0 to S39

CS =5nF

−

RBP

output resistance BP0 to BP3

note 5; VLCD =VDD − 5V

−−

Ω

output resistance S0 to S39

note 5; VLCD =VDD − 5V

−−

7.5

Ω

PCF8576 Datasheet(PDF) 28 Page - NXP Semiconductors

PCF8576 Datasheet(HTML) 28 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44

Datasheet Download

Link URL