PCF8801 Ver la hoja de datos (PDF) - Philips Electronics

Número de pieza

componentes Descripción

Fabricante

PCF8801

LCD driver for 140 × 2 segments

Philips Electronics 

Philips Semiconductors

LCD driver for 140 × 2 segments

Product specification

PCF8801

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

Outputs to LCD

VCOM(tol)

output voltage tolerance

on pad COM1 and

pad COM2

Ro(COM)

output resistance on

pad COM1 and

pad COM2

Ro(S)

output resistance on

pads S0 to S140

VDD = 5 V; note 3

−135

−

−

−10 to +10 +135

5

30

7

30

Notes

1. Outputs to LCD are unloaded (open-circuit); inputs are at VSS or VDD; Rext = 330 kΩ.

2. All Schmitt trigger inputs.

3. Measured one at a time; load current 30 µA.

UNIT

mV

kΩ

kΩ

AC CHARACTERISTICS

VDD = 2.7 to 5.5 V; VSS = 0 V; Tamb = −40 to +85 °C; unless otherwise specified; all timing parameter values are valid

within VDD and Tamb range, and are referenced to VIL and VIH with an input voltage swing of VSS to VDD. The serial

interface timing parameters are defined in Fig.5.

SYMBOL

Rext

fosc

tH(OSC)

tL(OSC)

fclk(CLK)

tH(CLK)(LD)

tL(CLK)(LD)

tsu(DI-CLK)

th(D)

tsep

PARAMETER

CONDITIONS

external resistor

oscillator frequency at

pad INT_OSCO and

pad OSCI

note 1

HIGH time on pad OSCI

LOW time on pad OSCI

data shift clock frequency

on pad CLKI

HIGH time on pads CLKI,

LDPI and LDNI

LOW time on pads CLKI,

LDPI and LDNI

set-up time DI to CLKI

data input hold time

DI stable after CLKI

rise

separation time between

active edges of CLKI,

LDPI and LDNI

MIN.

264

240

TYP.

330

500

MAX.

396

1 000

UNIT

kΩ

Hz

400

−

400

−

−

−

400

−

400

−

50

−

500

−

800

−

−

ns

−

ns

1 000

kHz

−

ns

−

ns

−

ns

−

ns

−

ns

Note

1. Frequency accuracy is valid within VDD, Tamb and Rext. Typical output duty cycle is 50 : 50.

2000 Feb 04

10

Share Link: