PCF8536AT datasheet(32/51 Pages) NXP

32 / 51 page

NXP Semiconductors

PCF8551

Universal 36 × 4 LCD segment driver

VDD = 1.8 V to 5.5 V; VSS = 0 V; VLCD = 1.8 V to 5.5 V; Tamb = -40 °C to +85 °C; unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

ffr = 64 Hz; no bus activity

VDD = 3.3 V; Tamb =

25 °C

0.6

μA

IDD

supply current

VDD = 5.5 V; Tamb =

85 °C

1.2

2.7

μA

ffr = 64 Hz; no bus activity

[1]

VLCD = 5.5 V; Tamb =

85 °C; BOOST = 0;

no display load

3.2

4.5

μA

VLCD = 3.3 V; Tamb =

25 °C

BOOST = 0;

no display load

2.5

μA

BOOST = 0;

display enabled;

display load CL = 1.4 nF

4.5

μA

IDD(LCD)

LCD supply current

BOOST = 1;

display enabled;

display load CL = 1.4 nF

5.5

μA

VIL

LOW-level input voltage

VSS

0.3VDD

VIH

HIGH-level input voltage

[2] 0.7VDD

VDD

output sink current; VOL =

0.4 V; VDD = 5 V

on pin CLK

on pin SDIO

IOL

LOW-level output current

on pin SDA

IOH

HIGH-level output current

output source current;

on pins SDIO, CLK; VOH =

4.6 V; VDD = 5 V

any input pin except for RST

leakage current

after ESD event

-500

+500

Rpu(RST_n) pull-up resistance on pin

RST_N

100

kΩ

LCD outputs (pins SEG0 to SEG17 and COM0 to COM3)

ΔVo

output voltage variation

VLCD = 5 V

-100

+100

output resistance

VLCD = 5 V

[3] -

1.5

kΩ

Table 17. Electrical characteristics...continued

[1]

For typical values, also see Figure 23 to Figure 25.

[2]

I2C pins SCL and SDA have no diode to VDD and may be driven up to 5.5 V.

[3]

Outputs measured one at a time.

PCF8551

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 3.1 — 3 May 2021

32 / 51

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