MAX7221ENG datasheet(3/15 Pages) MAXIM

部件名	MAX7221ENG

功能描述	Serially Interfaced, 8-Digit LED Display Drivers

PDF	15 Pages

Scroll/Zoom	100%

制造商	MAXIM [Maxim Integrated Products]

网页	https://www.maximintegrated.com/en.html

标志

3 / 15 page

(V+ = 5V ±10%, RSET = 9.53kΩ ±1%, TA = TMIN to TMAX, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

LOGIC INPUTS

Input Current DIN, CLK,

LOAD, CS

IIH, IIL

VIN = 0V or V+

-1

µA

Logic High Input Voltage

VIH

3.5

Logic Low Input Voltage

VIL

0.8

Output High Voltage

VOH

DOUT, ISOURCE = -1mA

V+ - 1

Output Low Voltage

VOL

DOUT, ISINK = 1.6mA

0.4

Hysteresis Voltage

ΔVI

DIN, CLK, LOAD, CS

TIMING CHARACTERISTICS

CLK Clock Period

tCP

100

CLK Pulse Width High

tCH

CLK Pulse Width Low

tCL

Fall to SCLK Rise Setup Time

(MAX7221 only)

tCSS

CLK Rise to CS or LOAD Rise

Hold Time

tCSH

DIN Setup Time

tDS

DIN Hold Time

tDH

Output Data Propagation Delay

tDO

CLOAD = 50pF

Load-Rising Edge to Next Clock

Rising Edge (MAX7219 only)

tLDCK

Minimum CS or LOAD Pulse

High

tCSW

Data-to-Segment Delay

tDSPD

2.25

Electrical Characteristics (continued)

MAX7219/MAX7221

Serially Interfaced, 8-Digit LED Display Drivers

www.maximintegrated.com

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