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Recommended Operating Conditions

(1)

Electrical Characteristics

SN74AHC123A-EP

DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR

SCLS703A – JULY 2006 – REVISED MARCH 2007

MIN

MAX

UNIT

VCC

Supply voltage

2

5.5

V

VCC = 2 V

1.5

VIH

High-level input voltage

VCC = 3 V

2.1

V

VCC = 5.5 V

3.85

VCC = 2 V

0.5

VIL

Low-level input voltage

VCC = 3 V

0.9

V

VCC = 5.5 V

1.65

VI

Input voltage

0

5.5

V

VO

Output voltage

0

VCC

V

VCC = 2 V

–50

µA

IOH

High-level output current

VCC = 3.3 V ± 0.3 V

–4

mA

VCC = 5 V ± 0.5 V

–8

VCC = 2 V

50

µA

IOL

Low-level output current

VCC = 3.3 V ± 0.3 V

4

mA

VCC = 5 V ± 0.5 V

8

VCC = 2 V

5

Rext

External timing resistance

k

Ω

VCC > 3 V

1

∆t/∆V

CC

Power-up ramp rate

1

ms/V

TA

Operating free-air temperature

–55

125

°C

(1)

Unused Rext/Cext terminals should be left unconnected. All remaining unused inputs of the device must be held at VCC or GND to ensure

proper device operation. See the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004.

over operating free-air temperature range (unless otherwise noted)

TA = 25°C

PARAMETER

TEST CONDITIONS

VCC

MIN

MAX

UNIT

MIN

TYP

MAX

2 V

1.9

2

1.9

IOH = –50 µA

3 V

2.9

3

2.9

VOH

4.5 V

4.4

4.5

4.4

V

IOH = –4 mA

3 V

2.58

2.48

IOH = –8 mA

4.5 V

3.94

3.8

2 V

0.1

0.1

IOL = 50 µA

3 V

0.1

0.1

VOL

4.5 V

0.1

0.1

V

IOL = 4 mA

3 V

0.36

0.44

IOL = 8 mA

4.5 V

0.36

0.44

Rext/Cext(1)

VI = VCC or GND

5.5 V

±0.25

±2.5

II

µA

A, B, and CLR

VI = VCC or GND

0 V to 5.5 V

±0.1

±1(2)

VI = VCC or GND, IO =

ICC

Quiescent

5.5 V

4

40

µA

0

3 V

160

250

280

Active state

VI = VCC or GND,

ICC

4.5 V

280

500

650

µA

(per circuit)

Rext/Cext = 0.5 VCC

5.5 V

360

750

975

Ci

VI = VCC or GND

5 V

1.9

10

10

pF

(1)

This test is performed with the terminal in the off-state condition.

(2)

On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V.

4

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