MAX6955 Ver la hoja de datos (PDF) - Maxim Integrated

Número de pieza

componentes Descripción

Fabricante

MAX6955

2-Wire Interfaced, 2.7V to 5.5V LED Display Driver with I/O Expander and Key Scan

Maxim Integrated 

MAX6955

2-Wire Interfaced, 2.7V to 5.5V

LED Display Driver with I/O

Expander and Key Scan

DC Electrical Characteristics (continued)

(Typical Operating Circuit, V+ = 2.7V to 5.5V, TA = TMIN to TMAX, unless otherwise noted.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

VLED = 2.2V,

V+ = 3.3V

Segment Drive Source Current

ISEG

TA = +25°C

-32

VLED = 2.2V,

V+ = 2.7V

Segment Current Slew Rate

Segment Drive Current Matching

LOGIC INPUTS AND OUTPUTS

∆ISEG/∆t TA = +25°C, V+ = 3.3V

∆ISEG TA = +25°C, V+ = 3.3V

Input High Voltage

SDA, SCL, AD0, AD1

VIH

0.7 x

V+

Input Low Voltage

SDA, SCL, AD0, AD1

VIL

Input Leakage Current

SDA, SCL, AD0, AD1, OSC, P0,

IIH, IIL

-1

P1, P2, P3, P4/IRQ

SDA Output Low Voltage

Port Logic-High Input Voltage

P0, P1, P2, P3, P4/IRQ

VOLSDA

VIHP

ISINK = 6mA

0.7 x

V+

Port Logic-Low Input Voltage

P0, P1, P2, P3, P4/IRQ

VILP

Port Hysteresis Voltage

P0, P1, P2, P3, P4/IRQ

∆VIP

Port Input Pullup Current from V+

IIPU

P0 to P3 configured as key-scan inputs,

V+ = 3.3V

Port Output Low Voltage

Blink Output Low Voltage

VOLP

VOLBK

ISINK = 8mA

ISINK = 0.6mA

OSC_OUT Output High Voltage

VOHOSC ISOURCE = 1.6mA

V+ -

0.4

OSC_OUT Output Low Voltage

VOLOSC ISINK = 1.6mA

TYP

-40

11

5

0.03 x

V+

75

0.3

0.1

MAX

-48

0.3 x

V+

+1

0.4

0.3 x

V+

0.5

0.3

0.4

UNITS

mA

mA/µs

%

V

V

µA

V

V

V

V

µA

V

V

V

V

www.maximintegrated.com

Maxim Integrated | 3

Share Link: