SCE5743 datasheet(4/16 Pages) OSRAM

4 / 16 page

SCE5740, SCE5741, SCE5742, SCE5743, SCE5744, SCE5745

2006-03-30

Input/Output Circuits

Figures „Inputs“ and „Clock I/O“ show the input and output resis-

tor/diode networks used for ESD protection and to eliminate sub-

strate latch-up caused by input voltage over/under shoot.

Inputs

Clock I/O (SCE574X only)

Electrical Characteristics (over operating temperature)

Parameter

Min.

Typ.

Max.

Units

Conditions

4.5

5.0

5.5

—

ICC (Power Down)

1) 2)

—

µA

VCC=5.0 V, all inputs=0 V or VCC

ICC 4 digits 20 dots/character

115

130

VCC=5.0 V, “#” displayed in all 4 digits

at 100% brightness at 25

°C

IIL Input current

—

–10

µA

VCC=5.0 V, VIN=0 (all inputs)

IIH Input current

—

µA

VCC=VIN=5.0 V (all inputs)

3.5

—

CC=4.5 V to 5.5 V

VIL

—

1.5

VCC=4.5 V to 5.5 V

Row Multiplex Rate

375

768

1086

—

JC-pin

—

°C/W

—

Notes:

Unused inputs must be tied high.

External oscillator must be stopped.

Peak current

3 x ICC.

Electrical Characteristics for SCE574x only

Parameter

Min.

Typ.

Max.

Units

Conditions

IOH (CLK I/O)

—

–28

—

VCC=4.5 V, VOH=2.4 V

IOL (CLK I/O)

—

VCC=4.5 V, VOL=0.4 V

ext External Clock Input

Frequency

120

—

MHz

VCC=5.0 V, CLKSEL=0

osc Internal Clock Input

Frequency

120

—

347

kHz

VCC=5.0 V, CLKSEL=1

Clock I/O Bus Loading

—

240

—

Clock Out Rise Time

—

500

VCC=4.5 V, VOH=2.4 V

Clock Out Fall Time

—

500

VCC=4.5 V, VOH=0.4 V

IDCD5021

GND

1 k

Ω

Input

VCC

1 K

Ω

GND

input/output

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