SCDQ5541P/Q/R, SCDQ5542P/Q/R, SCDQ5543P/Q/R, SCDQ5544P/Q/R

2010-04-13

5

Input Circuit

The input resistor/diode network shown below is used for ESD protection and to eliminate substrate latch-up caused

by input voltage over/under shoot.

Inputs

Electrical characteristics (over operating temperature, unless otherwise specified, T

Parameter

Min.

Typ.

Max.

Units

Conditions

V

CC

4.5

—

5.5

V

—

I

—

—

5.0

µA

V

I

1)

—

100

145

mA

V

at 100% brightness at 25×C

V

IH

3.5

—

—

V

V

V

IL

—

—

1.5

V

V

I

IH

—

—

10

µA

V

I

IL

—

—

–10

µA

V

Internal Mux Frequency

375

768

1086

Hz

—

θ

ja

—

65

—

°C/W

—

Notes:

1)

I

2)

Contact manufacturer for 3.3 volt operation.

Pinout and Pin Definitions

Pin

Function

Definitions

1

LOAD

Low input enables data clocking into 8-bit

serial shift register. When LOAD goes high,

the contents of 8- bit serial Shift Register will

be decoded.

2

SDATA

Serial data input

3

SDCLK

Loads data into the 8-bit serial data register on

a low to high transition

4

V

CC

Power supply

5

GND

Power supply ground

IDCD5021

GND

1 k

Ω

Input

CC

V