MAX6954 데이터 시트보기 (PDF) - Maxim Integrated

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MAX6954

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

Maxim Integrated 

4-Wire Interfaced, 2.7V to 5.5V LED Display

Driver with I/O Expander and Key Scan

DC ELECTRICAL CHARACTERISTICS (continued)

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

PARAMETER

Segment Drive Source Current

Segment Current Slew Rate

Segment Drive Current Matching

LOGIC INPUTS AND OUTPUTS

Input Leakage Current

DIN, CLK, CS, OSC, P0, P1, P2,

P3, P4

SYMBOL

CONDITIONS

ISEG

VLED = 2.2V,

V+ = 3.3V

TA = +25°C

ΔISEG/Δt TA = +25°C, V+ = 3.3V

ΔISEG TA = +25°C, V+ = 3.3V

IIH, IIL

MIN

-34.5

-1

4-Wire Logic-High Input Voltage

DIN, CLK, CS

VIHSPI

1.8

4-Wire Logic-Low Input Voltage

DIN, CLK, CS

VILSPI

Port Logic-High Input Voltage

P0, P1, P2, P3, P4

VIHP

0.7 x

V+

Port Logic-Low Input Voltage

P0, P1, P2, P3, P4

VILP

Port Hysteresis Voltage P0, P1,

P2, P3, P4

ΔVIP

Port Input Pullup Current from V+

IIPU

P0 to P3 configured as keyscan input, V+ =

3.3V

Port Output Low Voltage

VOLP ISINK = 8mA

Blink Output Low Voltage

VOLBK ISINK = 0.6mA

DOUT Output High Voltage

VOHDO ISOURCE = 1.6mA

V+ -

0.2

DOUT Output Low Voltage

VOLDO ISINK = 1.6mA

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

-46.5

10

+1

0.6

0.3 x

V+

0.5

0.3

0.2

0.4

UNITS

mA

mA/µs

%

µA

V

V

V

V

V

µA

V

V

V

V

V

V

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