PCF8576CUSLASH2 datasheet(30/44 Pages) PHILIPS

30 / 44 page

1998 Jul 30

Philips Semiconductors

Product speciﬁcation

Universal LCD driver for low multiplex

rates

PCF8576C

11 AC CHARACTERISTICS

VDD = 2 to 6 V; VSS =0V; VLCD =VDD − 2VtoVDD − 6V;Tamb = −40 to + 85 °C; unless otherwise speciﬁed.

Notes

1. At fclk < 125 kHz, I2C-bus maximum transmission speed is derated.

2. All timing values are valid within the operating supply voltage and ambient temperature range and are referenced to

VIL and VIH with an input voltage swing of VSS to VDD.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

fclk

oscillator frequency

normal mode

VDD = 5 V; note 1

125

200

315

kHz

power-saving mode

VDD = 3.5 V

kHz

tclkH

CLK HIGH time

−−µs

tclkL

CLK LOW time

−−µs

tPSYNC

SYNC propagation delay time

−−

400

tSYNCL

SYNC LOW time

−−µs

tPLCD

driver delays with test loads

VLCD =VDD − 5V

−−

µs

Timing characteristics: I2C-bus; note 2

tBUF

bus free time

4.7

−−µs

tHD;STA

START condition hold time

4.0

−−µs

tSU;STA

set-up time for a repeated START condition

4.7

−−µs

tLOW

SCL LOW time

4.7

−−µs

tHIGH

SCL HIGH time

4.0

−−µs

SCL and SDA rise time

−−

µs

SCL and SDA fall time

−−

0.3

µs

capacitive bus line load

−−

400

tSU;DAT

data set-up time

250

−−

tHD;DAT

data hold time

−−

tSU;STO

set-up time for STOP condition

4.0

−−µs

Fig.20 Test loads.

MBE544

Ω

3.3 k

Ω

1.5 k

0.5VDD

VDD

SDA,

SCL

CLK

1 nF

BP0 to BP3, and

S0 to S39

(2%)

Ω

6.8

VDD

SYNC

(2%)

PCF8576CU/2 Datasheet(PDF) 30 Page - NXP Semiconductors

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