SN54LV123A, SN74LV123A

DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS

WITH SCHMITT TRIGGER INPUTS

SCLS393O − APRIL 1998 − REVISED OCTOBER 2005

6

POST OFFICE BOX 655303

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

VCC

SN54LV123A

SN74LV123A

UNIT

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

MIN

TYP

MAX

UNIT

IOH = −50 µA

2 V to 5.5 V

VCC−0.1

VCC−0.1

VOH

IOH = −2 mA

2.3 V

2

2

V

VOH

IOH = −6 mA

3 V

2.48

2.48

V

IOH = −12 mA

4.5 V

3.8

3.8

IOL = 50 µA

2 V to 5.5 V

0.1

0.1

VOL

IOL = 2 mA

2.3 V

0.4

0.4

V

VOL

IOL = 6 mA

3 V

0.44

0.44

V

IOL = 12 mA

4.5 V

0.55

0.55

Rext/Cext†

VI = 5.5 V or GND

2 V to 5.5 V

±2.5

±2.5

II

A, B, and CLR

VI = 5.5 V or GND

0

±1

±1

µA

II

A, B, and CLR

VI = 5.5 V or GND

0 to 5.5 V

±1

±1

µA

ICC

Quiescent

VI = VCC or GND,

IO = 0

5.5 V

20

20

µA

2.3 V

220

220

ICC

Active state

VI = VCC or GND,

3 V

280

280

A

ICC

Active state

(per circuit)

VI = VCC or GND,

Rext/Cext = 0.5 VCC

4.5 V

650

650

µA

(per circuit)

Rext/Cext = 0.5 VCC

5.5 V

975

975

Ioff

VI or VO = 0 to 5.5 V

0

5

µA

Ci

VI = VCC or GND

3.3 V

1.9

1.9

pF

Ci

VI = VCC or GND

5 V

1.9

1.9

pF

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

(unless otherwise noted) (see Figure 1)

TEST CONDITIONS

TA = 25°C

SN54LV123A

SN74LV123A

UNIT

TEST CONDITIONS

MIN

TYP

MAX

MIN

MAX

MIN

MAX

UNIT

tw

Pulse

CLR

6

6.5

6.5

ns

tw

Pulse

duration

A or B trigger

6

6.5

6.5

ns

trr

Pulse retrigger time

Rext = 1 kΩ

Cext = 100 pF

‡

94

‡

‡

ns

trr

Pulse retrigger time

Rext = 1 kΩ

Cext = 0.01 mF

‡

2

‡

‡

ms

‡ See retriggering data in the application information section.

(unless otherwise noted) (see Figure 1)

TEST CONDITIONS

TA = 25°C

SN54LV123A

SN74LV123A

UNIT

TEST CONDITIONS

MIN

TYP

MAX

MIN

MAX

MIN

MAX

UNIT

tw

Pulse

CLR

5

5

5

ns

tw

Pulse

duration

A or B trigger

5

5

5

ns

trr

Pulse retrigger time

Rext = 1 kΩ

Cext = 100 pF

‡

76

‡

‡

ns

trr

Pulse retrigger time

Rext = 1 kΩ

Cext = 0.01 mF

‡

1.8

‡

‡

ms

‡ See retriggering data in the application information section.

PRODUCT PREVIEW information concerns products in the formative or

design phase of development. Characteristic data and other

specifications are design goals. Texas Instruments reserves the right to

change or discontinue these products without notice.