74AHCT123AD_技术文档

74AHC123A; 74AHCT123A

Dual retriggerable monostable multivibrator with reset

Rev. 5 — 17 June 2020

Product data sheet

1. General description

The 74AHC123A; 74AHCT123A is a dual retriggerable monostable multivibrator with reset. The

basic output pulse width is programmed by selection of external components (R_EXTand C_EXT).

Once triggered this basic pulse width may be extended by retriggering either of the edge triggered

inputs (nA or (nB). By repeating this process, the output pulse period (nQ = HIGH, nQ = LOW)

can be made as long as desired. Alternatively, an output delay can be terminated at any time by

a LOW-going edge on input nRD. Inputs are overvoltage tolerant. This feature allows the use of

these devices as translators in mixed voltage environments.

2. Features and benefits

•

Wide supply voltage range from 2.0 V to 5.5 V

•

DC triggered from active HIGH or active LOW inputs

Retriggerable for very long pulses up to 100 % duty factor

Direct reset terminates output pulse

Overvoltage tolerant inputs to 5.5 V

All inputs have a Schmitt-trigger action

High noise immunity

Input levels:

•

For 74AHC123A: CMOS level

For 74AHCT123A: TTL level

•

ESD protection:

•

HBM JESD22-A114E exceeds 2000 V

MM JESD22-A115-A exceeds 200 V

CDM JESD22-C101C exceeds 1000 V

•

Latch-up performance exceeds 100 mA per JESD 78 Class II Level A

Multiple package options

Specified from -40 °C to +85 °C and from -40 °C to +125 °C

3. Ordering information

Table 1. Ordering information

Type number

Package

Temperature range Name

Description

Version

74AHC123AD

-40 °C to +125 °C

SO16

plastic small outline package; 16 leads;

body width 3.9 mm

SOT109-1

74AHCT123AD

74AHC123APW

74AHCT123APW

74AHC123ABQ

74AHCT123ABQ

TSSOP16

plastic thin shrink small outline package; 16 leads;

body width 4.4 mm

SOT403-1

SOT763-1

DHVQFN16 plastic dual in-line compatible thermal enhanced

very thin quad flat package; no leads; 16 terminals;

body 2.5 × 3.5 × 0.85 mm

Nexperia

74AHC123A; 74AHCT123A

Dual retriggerable monostable multivibrator with reset

4. Functional diagram

14

CX

15

RCX

13

1

&

14 1CEXT

2CEXT

15 1REXT/CEXT

2REXT/CEXT

2

6

4

7

3

R

S

13 1Q

Q

6

5

2Q

CX

1A

2A

1

9

T

7

RCX

5

4

1Q

9

1B

2

&

12 2Q

2B 10

10

RD

1RD 3

12

2RD 11

11

R

001aae521

001aae522

Fig. 1. Logic symbol

Fig. 2. IEC logic symbol

14

1CEXT

15

1REXT/CEXT

S

13

1Q

Q

1

1A

T

4

2

3

1B

RD

1RD

6

7

2CEXT

2REXT/CEXT

S

5

2Q

Q

9

2A

T

12

10

11

2B

RD

2RD

aaa-000650

Fig. 3. Functional diagram

©

74AHC_AHCT123A

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 17 June 2020

2 / 19

Nexperia

74AHC123A; 74AHCT123A

Dual retriggerable monostable multivibrator with reset

nREXT/CEXT

V

CC

Q

RD

R

V

CL

CC

V

CC

R

A

B

CL

001aae524

R

For minimum noise generation it is recommended to ground pins 6 (2CEXT) and 14 (1CEXT)

externally to pin 8 (GND).

Fig. 4. Functional diagram

©

74AHC_AHCT123A

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 17 June 2020

3 / 19

Nexperia

74AHC123A; 74AHCT123A

Dual retriggerable monostable multivibrator with reset

5. Pinning information

5.1. Pinning

74AHC123A

74AHCT123A

terminal 1

index area

2

3

4

5

6

7

15

14

13

12

11

10

1B

1RD

1REXT/CEXT

1CEXT

1Q

74AHC123A

74AHCT123A

1Q

2Q

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

1A

V

CC

2CEXT

2REXT/CEXT

(1)

2RD

2B

GND

1B

1RD

1REXT/CEXT

1CEXT

1Q

001aah067

2Q

2CEXT

2REXT/CEXT

GND

2RD

2B

Transparent top view

(1) This is not a ground pin. There is no electrical or

mechanical requirement to solder the pad. In case

soldered, the solder land should remain floating or

connected to GND.

2A

001aah068

Fig. 5. Pin configuration SOT109-1 (SO16) and

SOT403-1 (TSSOP16)

Fig. 6. Pin configuration SOT763-1 (DHVQFN16)

5.2. Pin description

Table 2. Pin description

Symbol

1

Description

1A

negative-edge triggered input 1

positive-edge triggered input 1

direct reset LOW and positive-edge triggered input 1

active LOW output 1

1B

2

1RD

3

1Q

4

2Q

5

active HIGH output 2

2CEXT

6

external capacitor connection 2

external resistor and capacitor connection 2

ground (0 V)

2REXT/CEXT

7

GND

8

2A

9

negative-edge triggered input 2

positive-edge triggered input 2

direct reset LOW and positive-edge triggered input 2

active LOW output 2

2B

10

11

12

13

14

15

16

2RD

2Q

1Q

active HIGH output 1

1CEXT

1REXT/CEXT

V_CC

external capacitor connection 1

external resistor and capacitor connection 1

supply voltage

©

74AHC_AHCT123A

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 17 June 2020

4 / 19

Nexperia

74AHC123A; 74AHCT123A

Dual retriggerable monostable multivibrator with reset

6. Functional description

Table 3. Function table

H = HIGH voltage level; L = LOW voltage level; X = don’t care;

↑ = LOW-to-HIGH transition;

↓ = HIGH-to-LOW transition;

= one HIGH level output pulse;

= one LOW level output pulse.

Input

Output

nRD

L

nA

X

nB

X

nQ

L

nQ

H

X

H

X

L [1]

H [1]

X

L

H

L

↑

H

↑

↓

H

L

[1] If the monostable multivibrator was triggered before this condition was established, the pulse will continue as programmed.

7. Limiting values

Table 4. Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).

Symbol Parameter

Conditions

Min

-0.5

-20

-

Max

+7.0

-

Unit

V

V_CC

V_I

supply voltage

input voltage

V

I_IK

input clamping current

output clamping current

output current

V_I< -0.5 V

[1]

mA

°C

I_OK

I_O

V_O< -0.5 V or V_O> V_CC+ 0.5 V

V_O= -0.5 V to (V_CC+ 0.5 V)

±20

±25

75

-

I_CC

I_GND

T_stg

P_tot

supply current

-

ground current

-75

-65

-

storage temperature

total power dissipation

+150

500

T_amb= -40 °C to +125 °C

[2]

mW

[1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed.

[2] For SOT109-1 (SO16) package: P_totderates linearly with 12.4 mW/K above 110 °C.

For SOT403-1 (TSSOP16) package: P_totderates linearly with 8.5 mW/K above 91 °C.

For SOT763-1 (DHVQFN16) package: P_totderates linearly with 11.2 mW/K above 106 °C.

©

74AHC_AHCT123A

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 17 June 2020

5 / 19

Nexperia

74AHC123A; 74AHCT123A

Dual retriggerable monostable multivibrator with reset

8. Recommended operating conditions

Table 5. Recommended operating conditions

Voltages are referenced to GND (ground = 0 V).

Symbol Parameter

Conditions

74AHC123A

74AHCT123A

Unit

Min

2.0

0

Typ

Max

5.5

Min

4.5

0

Typ

Max

V_CC

V_I

supply voltage

input voltage

5.0

5.5

V

-

5.5

-

V_O

output voltage

ambient temperature

0

-

V_CC

+125

100

20

0

-

V_CC

T_amb

Δt/ΔV

-40

-

+25

-40

-

+25

+125 °C

input transition rise and

fall rate

V_CC= 3.3 V ± 0.3 V

V_CC= 5.0 V ± 0.5 V

-

ns/V

-

20

ns/V

9. Static characteristics

Table 6. Static characteristics

Voltages are referenced to GND (ground = 0 V).

Symbol Parameter

Conditions

25 °C

-40 °C to

+85 °C

-40 °C to

+125 °C

Unit

Min Typ Max

Min

Max

Min

Max

74AHC123A

V_IH

HIGH-level

input voltage

V_CC= 2.0 V

V_CC= 3.0 V

V_CC= 5.5 V

V_CC= 2.0 V

V_CC= 3.0 V

V_CC= 5.5 V

V_I= V_IHor V_IL

1.5

-

1.5

-

1.5

-

V

2.1

3.85

-

3.85

-

3.85

-

V_IL

LOW-level

input voltage

-

0.5

0.9

1.65

-

0.5

0.9

1.65

-

0.5

0.9

1.65

V_OH

HIGH-level

output voltage

I_O= -50 μA; V_CC= 2.0 V

1.9

2.9

2.0

3.0

4.5

-

1.9

2.9

-

1.9

2.9

-

V

I_O= -50 μA; V_CC= 3.0 V

I_O= -50 μA; V_CC= 4.5 V

I_O= -4.0 mA; V_CC= 3.0 V

I_O= -8.0 mA; V_CC= 4.5 V

4.4

2.58

3.94

2.48

3.8

2.40

3.70

-

V_OL

LOW-level

V_I= V_IHor V_IL

output voltage

I_O= 50 μA; V_CC= 2.0 V

I_O= 50 μA; V_CC= 3.0 V

I_O= 50 μA; V_CC= 4.5 V

I_O= 4.0 mA; V_CC= 3.0 V

I_O= 8.0 mA; V_CC= 4.5 V

-

0

-

0.1

-

0.1

-

0.1

V

0.1

0.36

0.44

0.55

-

©

74AHC_AHCT123A

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 17 June 2020

6 / 19

Nexperia

74AHC123A; 74AHCT123A

Dual retriggerable monostable multivibrator with reset

Symbol Parameter

Conditions

25 °C

-40 °C to

+85 °C

-40 °C to

+125 °C

Unit

Min Typ Max

Min

Max

Min

Max

I_I

input leakage

current

V_I= 5.5 V or GND;

V_CC= 0 V to 5.5 V

nREXT/CEXT

[1]

-

±0.25

±0.1

4.0

-

±2.5

±1.0

40

-

±10.0 μA

±2.0 μA

80 μA

pins nA, nB, nRD

I_CC

supply current V_I= V_CCor GND; I_O= 0 A;

V_CC= 5.5 V

active state (per circuit);

V_I= V_CCor GND

V_CC= 3.0 V

V_CC= 4.5 V

V_CC= 5.5 V

-

160 250

380 500

560 750

-

280

650

975

10

-

280 μA

650 μA

975 μA

C_I

input

5.0

10

pF

capacitance

C_O

output

-

4.0

-

pF

capacitance

74AHCT123A

V_IH

HIGH-level

input voltage

V_CC= 4.5 V to 5.5 V

2.0

-

2.0

-

2.0

-

V

V_IL

LOW-level

0.8

input voltage

V_OH

HIGH-level

output voltage

V_I= V_IHor V_IL; V_CC= 4.5 V

I_O= -50 μA

4.4

4.5

-

4.4

3.8

-

4.4

-

V

I_O= -8.0 mA

3.94

3.70

V_OL

LOW-level

output voltage

V_I= V_IHor V_IL; V_CC= 4.5 V

I_O= 50 μA

-

0

-

0.1

0.36

±0.25

-

0.1

-

0.1

V

I_O= 8.0 mA

0.44

±2.5

0.55

I_I

input leakage

current

nREXT/CEXT;

V_I= 5.5 V or GND;

V_CC= 0 V to 5.5 V

[1]

-

±10.0 μA

pins nA, nB, nRD;

V_I= V_CCor GND; V_CC= 5.5 V

-

±0.1

4.0

-

±1.0

40

-

±2.0 μA

I_CC

supply current V_I= V_CCor GND; I_O= 0 A;

V_CC= 5.5 V

80

μA

active state (per circuit);

V_I= V_CCor GND

V_CC= 4.5 V

V_CC= 5.5 V

-

380 500

560 750

-

650

975

10

-

650 μA

975 μA

C_I

input

3

10

pF

capacitance

C_O

output

-

4.0

-

pF

capacitance

[1] Voltage on nREXT/CEXT = 0.5 × V_CCand pin nREXT/CEXT in OFF-state during test.

©

74AHC_AHCT123A

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 17 June 2020

7 / 19

Nexperia

74AHC123A; 74AHCT123A

Dual retriggerable monostable multivibrator with reset

10. Dynamic characteristics

Table 7. Dynamic characteristics

GND = 0 V; For test circuit see Fig. 12.

Symbol Parameter Conditions

25 °C

-40 °C to

+85 °C

-40 °C to

+125 °C

Unit

Min Typ[1] Max Min

Max

Min

Max

74AHC123A

t_pd

propagation nA and nB to nQ and nQ; see Fig. 7 [2]

delay

V_CC= 3.0 V to 3.6 V; C_L= 15 pF

-

7.4 20.6 1.0

10.5 24.1 1.0

5.1 12.0 1.0

7.3 14.0 1.0

24.0

27.5

14.0

16.0

1.0

26.0 ns

30.0 ns

15.5 ns

17.5 ns

V_CC= 3.0 V to 3.6 V; C_L= 50 pF

V_CC= 4.5 V to 5.5 V; C_L= 15 pF

V_CC= 4.5 V to 5.5 V; C_L= 50 pF

nRD to nQ and nQ; see Fig. 7

V_CC= 3.0 V to 3.6 V; C_L= 15 pF

V_CC= 3.0 V to 3.6 V; C_L= 50 pF

V_CC= 4.5 V to 5.5 V; C_L= 15 pF

V_CC= 4.5 V to 5.5 V; C_L= 50 pF

[2]

-

8.2 22.4 1.0

11.7 25.9 1.0

5.6 12.9 1.0

8.1 14.9 1.0

26.0

29.5

15.0

17.0

1.0

28.0 ns

32.0 ns

16.5 ns

19.0 ns

nRD to nQ and nQ (reset); see Fig. 7 [2]

V_CC= 3.0 V to 3.6 V; C_L= 15 pF

V_CC= 3.0 V to 3.6 V; C_L= 50 pF

V_CC= 4.5 V to 5.5 V; C_L= 15 pF

V_CC= 4.5 V to 5.5 V; C_L= 50 pF

-

6.4 15.8 1.0

9.2 19.3 1.0

18.5

22.0

11.0

13.0

1.0

20.0 ns

24.5 ns

12.0 ns

14.5 ns

4.4

9.4

1.0

6.3 11.4 1.0

t_W

pulse width inputs; nA = LOW; see Fig. 7

V_CC= 3.0 V to 3.6 V

V_CC= 4.5 V to 5.5 V

5.0

-

5.0

-

5.0

-

ns

inputs; nB = HIGH; see Fig. 7

V_CC= 3.0 V to 3.6 V

5.0

-

5.0

-

5.0

-

ns

V_CC= 4.5 V to 5.5 V

inputs; nRD = LOW; see Fig. 7

V_CC= 3.0 V to 3.6 V

5.0

-

5.0

-

5.0

-

ns

V_CC= 4.5 V to 5.5 V

outputs; nQ = LOW and

[3]

nQ = HIGH; C_L= 50 pF;

see Fig. 7, Fig. 8, Fig. 9 and Fig. 10

C_EXT= 28 pF; R_EXT= 2 kΩ

V_CC= 3.0 V to 3.6 V

-

115 240

100 200

-

300

240

-

300 ns

240 ns

V_CC= 4.5 V to 5.5 V

C_EXT= 0.01 μF; R_EXT= 10 kΩ

V_CC= 3.0 V to 3.6 V

90

100 110

90

110

85

115 μs

V_CC= 4.5 V to 5.5 V

C_EXT= 0.1 μF; R_EXT= 10 kΩ;

V_CC= 3.0 V to 3.6 V

0.9

1

1.1

0.9

1.1

0.85

1.15 ms

V_CC= 4.5 V to 5.5 V

©

74AHC_AHCT123A

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 17 June 2020

8 / 19

Nexperia

74AHC123A; 74AHCT123A

Dual retriggerable monostable multivibrator with reset

Symbol Parameter Conditions

25 °C

-40 °C to

+85 °C

-40 °C to

+125 °C

Unit

Min Typ[1] Max Min

Max

Min

Max

t_rtrig

retrigger

time

nA to nB; C_EXT= 100 pF;

R_EXT= 1 kΩ; C_L= 50 pF;

see Fig. 8 and Fig. 10

V_CC= 3.0 V to 3.6 V

V_CC= 4.5 V to 5.5 V

-

60

39

-

ns

-

nA to nB; C_EXT= 0.01 μF;

R_EXT= 1 kΩ; C_L= 50 pF;

see Fig. 8 and Fig. 10

V_CC= 3.0 V to 3.6 V

V_CC= 4.5 V to 5.5 V

-

1.5

1.2

57

-

μs

pF

C_PD

power

C_L= 50 pF; f_i= 1 MHz;

V_I= GND to V_CC

[4]

dissipation

capacitance

74AHCT123A

t_pd

propagation nA and nB to nQ and nQ; see Fig. 7 [2]

delay

V_CC= 4.5 V to 5.5 V; C_L= 15 pF

-

5.0 12.0 1.0

7.1 14.0 1.0

14.0

16.0

1.0

15.5 ns

17.5 ns

V_CC= 4.5 V to 5.5 V; C_L= 50 pF

nRD to nQ and nQ; see Fig. 7

V_CC= 4.5 V to 5.5 V; C_L= 15 pF

V_CC= 4.5 V to 5.5 V; C_L= 50 pF

[2]

-

5.2 12.9 1.0

7.5 14.9 1.0

15.0

17.0

1.0

16.5 ns

18.5 ns

nRD to nQ and nQ (reset); see Fig. 7 [2]

V_CC= 4.5 V to 5.5 V; C_L= 15 pF

V_CC= 4.5 V to 5.5 V; C_L= 50 pF

-

4.7

9.4

1.0

11.0

13.0

1.0

12.0 ns

14.5 ns

6.7 11.4 1.0

t_W

pulse width inputs; nA = LOW; C_L= 50 pF;

see Fig. 7

V_CC= 4.5 V to 5.5 V

5.0

-

5.0

-

5.0

-

ns

inputs; nB = HIGH; C_L= 50 pF;

see Fig. 7

V_CC= 4.5 V to 5.5 V

inputs; nRD = LOW; C_L= 50 pF;

see Fig. 7

V_CC= 4.5 V to 5.5 V

outputs; nQ = LOW and

[3]

nQ = HIGH; C_L= 50 pF;

C_EXT= 28 pF; R_EXT= 2 kΩ;

see Fig. 7, Fig. 8, Fig. 9 and Fig. 10

V_CC= 4.5 V to 5.5 V

C_EXT= 0.01 μF; R_EXT= 10 kΩ

V_CC= 4.5 V to 5.5 V

-

100 200

100 110

-

240

110

1.1

-

240 ns

115 μs

1.15 ms

90

0.9

90

0.9

85

C_EXT= 0.1 μF; R_EXT= 10 kΩ

V_CC= 4.5 V to 5.5 V

1

1.1

0.85

©

74AHC_AHCT123A

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 17 June 2020

9 / 19

Nexperia

74AHC123A; 74AHCT123A

Dual retriggerable monostable multivibrator with reset

Symbol Parameter Conditions

25 °C

-40 °C to

+85 °C

-40 °C to

+125 °C

Unit

Min Typ[1] Max Min

Max

Min

Max

t_rtrig

retrigger

time

nA to nB; C_EXT= 100 pF;

R_EXT= 1 kΩ; C_L= 50 pF;

see Fig. 8 and Fig. 10

V_CC= 4.5 V to 5.5 V

-

60

-

ns

nA to nB; C_EXT= 0.01 μF;

R_EXT= 1 kΩ; C_L= 50 pF;

see Fig. 8 and Fig. 10

V_CC= 4.5 V to 5.5 V

-

1.5

58

-

μs

pF

C_PD

power

C_L= 50 pF; f_i= 1 MHz;

V_I= GND to V_CC

[4]

dissipation

capacitance

External components

R_EXT

external

resistance

V_CC= 2.0 V

V_CC> 3.0 V

V_CC= 2.0 V

V_CC> 3.0 V

5

1

-

kΩ

pF

C_EXT

external

capacitance

[5]

-

[1] Typical values are measured at nominal supply voltage (V_CC= 3.3 V and V_CC= 5.0 V).

[2] t_pdis the same as t_PLHand t_PHL; C_EXT= 0 pF; R_EXT= 5 kΩ.

[3] For C_EXT≥ 10 nF the typical value of the pulse width t_W(μs) = C_EXT(nF) × R_EXT(kΩ).

[4] C_PDis used to determine the dynamic power dissipation P_D(μW).

P_D= C_PD× V_CC²× f_i+ Σ(C_L× V_CC²× f_o) where:

f_i= input frequency in MHz;

f_o= output frequency in MHz;

C_L= output load capacitance in pF;

V_CC= supply voltage in V.

[5] C_EXThas no limits.

©

74AHC_AHCT123A

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 17 June 2020

10 / 19

Nexperia

74AHC123A; 74AHCT123A

Dual retriggerable monostable multivibrator with reset

10.1. Waveforms

V

nB input

M

(nA LOW)

t

W

V

M

nA input

(nB HIGH)

t

RESET

W

V

M

nRD input

nQ output

t

PLH

W

V

M

t

PHL

PLH

t

W

nQ output

V

M

t

PLH

PHL

001aae528

Measurement points are given in Table 8.

Fig. 7. Propagation delay input (nA, nB, nRD) to output (nQ, nQ)

Table 8. Measurement points

Type

Input

V_M

Output

V_M

74AHC123A

0.5V_CC

1.5 V

0.5V_CC

74AHCT123A

nB input

t

W

nA input

t

rtrig

t

W

nQ output

t

W

001aae526

W

nRD = HIGH

Fig. 8. Output pulse control using retrigger pulse

©

74AHC_AHCT123A

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 17 June 2020

11 / 19

Nexperia

74AHC123A; 74AHCT123A

Dual retriggerable monostable multivibrator with reset

nB input

nRD input

nQ output

t

W

001aae527

nA = LOW

Fig. 9. Output pulse control using reset input nRD

t

rt

nA input

nB input

nRD input

nREXT/CEXT

nQ output

t

W

t

+ t

W rt

W

001aah086

Fig. 10. Input and output timing

V

CC

R

EXT

C

EXT

to nCEXT

(pin 14 or 6)

to nREXT/CEXT

(pin 15 or 7)

mna519

Fig. 11. Timing component connections

©

74AHC_AHCT123A

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 17 June 2020

12 / 19

Nexperia

74AHC123A; 74AHCT123A

Dual retriggerable monostable multivibrator with reset

t

W

V

I

90 %

negative

pulse

V

M

10 %

0 V

t

r

f

t

f

r

V

I

90 %

positive

pulse

V

M

10 %

0 V

t

W

V

CC

V

I

V

O

R

L

S1

G

open

DUT

R

T

C

L

001aad983

Test data is given in Table 9.

Definitions test circuit:

R_T= Termination resistance should be equal to output impedance Z_oof the pulse generator

C_L= Load capacitance including jig and probe capacitance

R_L= Load resistance

S1 = Test selection switch

Fig. 12. Test circuit for measuring switching times

Table 9. Test data

Type

Input

V_I

Load

S1 position

t_PHL, t_PLH

open

t_r, t_f

C_L

R_L

t_PZH, t_PHZ

GND

t_PZL, t_PLZ

V_CC

74AHC123A

V_CC

3.0 V

3.0 ns

15 pF, 50 pF

1 kΩ

74AHCT123A

open

GND

V_CC

©

74AHC_AHCT123A

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 17 June 2020

13 / 19

Nexperia

74AHC123A; 74AHCT123A

Dual retriggerable monostable multivibrator with reset

11. Package outline

SO16: plastic small outline package; 16 leads; body width 3.9 mm

SOT109-1

D

E

A

X

v

c

y

H

M

A

E

Z

16

9

Q

A

2

A

(A )

3

A

1

pin 1 index

θ

L

p

L

1

8

e

w

M

detail X

b

p

0

2.5

scale

5 mm

DIMENSIONS (inch dimensions are derived from the original mm dimensions)

A

(1)

UNIT

A

b

c

D

E

e

H

E

L

p

Q

v

w

y

Z

θ

1

2

3

p

max.

0.25

0.10

1.45

1.25

0.49

0.36

0.25

0.19

10.0

9.8

4.0

3.8

6.2

5.8

1.0

0.4

0.7

0.6

0.7

0.3

mm

1.27

0.05

1.05

0.041

1.75

0.25

0.01

0.25

0.1

0.25

0.01

8^o

0^o

0.0100

0.0075

0.010 0.057

0.004 0.049

0.019

0.014

0.39

0.38

0.16

0.15

0.244

0.228

0.039 0.028

0.016 0.020

0.028

0.012

inches

0.069

0.01 0.004

Note

1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included.

REFERENCES

OUTLINE

EUROPEAN

PROJECTION

ISSUE DATE

VERSION

IEC

JEDEC

JEITA

99-12-27

03-02-19

SOT109-1

076E07

MS-012

Fig. 13. Package outline SOT109-1 (SO16)

©

74AHC_AHCT123A

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 17 June 2020

14 / 19

Nexperia

74AHC123A; 74AHCT123A

Dual retriggerable monostable multivibrator with reset

TSSOP16: plastic thin shrink small outline package; 16 leads; body width 4.4 mm

SOT403-1

D

E

A

X

c

y

H

v

M

A

E

Z

9

16

Q

(A )

3

A

2

A

1

pin 1 index

θ

L

p

L

1

8

detail X

w

M

b

p

e

0

2.5

5 mm

scale

DIMENSIONS (mm are the original dimensions)

A

(1)

(2)

(1)

UNIT

A

b

c

D

E

e

H

L

Q

v

w

y

Z

θ

1

2

3

p

E

p

max.

8^o

0^o

0.15

0.05

0.95

0.80

0.30

0.19

0.2

0.1

5.1

4.9

4.5

4.3

6.6

6.2

0.75

0.50

0.4

0.3

0.40

0.06

mm

1.1

0.65

1

0.2

0.13

0.1

0.25

Notes

1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.

2. Plastic interlead protrusions of 0.25 mm maximum per side are not included.

REFERENCES

OUTLINE

EUROPEAN

PROJECTION

ISSUE DATE

VERSION

IEC

JEDEC

JEITA

99-12-27

03-02-18

SOT403-1

MO-153

Fig. 14. Package outline SOT403-1 (TSSOP16)

©

74AHC_AHCT123A

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 17 June 2020

15 / 19

Nexperia

74AHC123A; 74AHCT123A

Dual retriggerable monostable multivibrator with reset

DHVQFN16: plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads;

16 terminals; body 2.5 x 3.5 x 0.85 mm

SOT763-1

B

A

D

A

1

E

c

detail X

terminal 1

index area

C

terminal 1

index area

e

1

y

e

b

v

M

C

A

B

C

1

w

M

2

7

L

1

8

9

E

h

e

16

15

10

D

h

X

0

2.5

scale

5 mm

DIMENSIONS (mm are the original dimensions)

(1)

A

(1)

UNIT

A

1

b

c

E

h

e

y

D

E

L

v

w

y

1

h

max.

0.05 0.30

0.00 0.18

3.6

3.4

2.15

1.85

2.6

2.4

1.15

0.85

0.5

0.3

mm

0.05

0.1

1

0.2

0.5

2.5

0.1

0.05

Note

1. Plastic or metal protrusions of 0.075 mm maximum per side are not included.

REFERENCES

OUTLINE

EUROPEAN

PROJECTION

ISSUE DATE

VERSION

IEC

JEDEC

JEITA

02-10-17

03-01-27

SOT763-1

- - -

MO-241

- - -

Fig. 15. Package outline SOT763-1 (DHVQFN16)

©

74AHC_AHCT123A

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 17 June 2020

16 / 19

Nexperia

74AHC123A; 74AHCT123A

Dual retriggerable monostable multivibrator with reset

12. Abbreviations

Table 10. Abbreviations

Acronym

Description

CDM

CMOS

DUT

ESD

HBM

MM

Charged-Device Model

Complementary Metal Oxide Semiconductor

Device Under Test

ElectroStatic Discharge

Human Body Model

Machine Model

TTL

Transistor-Transistor Logic

13. Revision history

Table 11. Revision history

Document ID

Release date Data sheet status

20200617 Product data sheet

Change notice Supersedes

- 74AHC_AHCT123A v.4

74AHC_AHCT123A v.5

Modifications:

•

The format of this data sheet has been redesigned to comply with the identity

guidelines of Nexperia.

•

Legal texts have been adapted to the new company name where appropriate.

Section 1 and Section 2 updated.

Table 4: Derating values for P_tottotal power dissipation updated.

74AHC_AHCT123A v.4

Modifications:

20111108

Product data sheet

-

74AHC_AHCT123A v.3

•

Legal pages updated.

74AHC_AHCT123A v.3

74AHC_AHCT123A v.2

74AHC_AHCT123A v.1

20110908

20080118

20000315

Product data sheet

Product specification

-

74AHC_AHCT123A v.2

74AHC_AHCT123A v.1

-

©

74AHC_AHCT123A

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 17 June 2020

17 / 19

Nexperia

74AHC123A; 74AHCT123A

Dual retriggerable monostable multivibrator with reset

injury, death or severe property or environmental damage. Nexperia and its

suppliers accept no liability for inclusion and/or use of Nexperia products in

such equipment or applications and therefore such inclusion and/or use is at

the customer’s own risk.

14. Legal information

Quick reference data — The Quick reference data is an extract of the

product data given in the Limiting values and Characteristics sections of this

document, and as such is not complete, exhaustive or legally binding.

Data sheet status

Document status Product

Definition

Applications — Applications that are described herein for any of these

products are for illustrative purposes only. Nexperia makes no representation

or warranty that such applications will be suitable for the specified use

without further testing or modification.

[1][2]

status [3]

Objective [short]

data sheet

Development

This document contains data from

the objective specification for

product development.

Customers are responsible for the design and operation of their applications

and products using Nexperia products, and Nexperia accepts no liability for

any assistance with applications or customer product design. It is customer’s

sole responsibility to determine whether the Nexperia product is suitable

and fit for the customer’s applications and products planned, as well as

for the planned application and use of customer’s third party customer(s).

Customers should provide appropriate design and operating safeguards to

minimize the risks associated with their applications and products.

Preliminary [short]

data sheet

Qualification

Production

This document contains data from

the preliminary specification.

Product [short]

data sheet

This document contains the product

specification.

[1] Please consult the most recently issued document before initiating or

completing a design.

Nexperia does not accept any liability related to any default, damage, costs

or problem which is based on any weakness or default in the customer’s

applications or products, or the application or use by customer’s third party

customer(s). Customer is responsible for doing all necessary testing for the

customer’s applications and products using Nexperia products in order to

avoid a default of the applications and the products or of the application or

use by customer’s third party customer(s). Nexperia does not accept any

liability in this respect.

[2] The term 'short data sheet' is explained in section "Definitions".

[3] The product status of device(s) described in this document may have

changed since this document was published and may differ in case of

multiple devices. The latest product status information is available on

the internet at https://www.nexperia.com.

Definitions

Limiting values — Stress above one or more limiting values (as defined in

the Absolute Maximum Ratings System of IEC 60134) will cause permanent

damage to the device. Limiting values are stress ratings only and (proper)

operation of the device at these or any other conditions above those

given in the Recommended operating conditions section (if present) or the

Characteristics sections of this document is not warranted. Constant or

repeated exposure to limiting values will permanently and irreversibly affect

the quality and reliability of the device.

Draft — The document is a draft version only. The content is still under

internal review and subject to formal approval, which may result in

modifications or additions. Nexperia does not give any representations or

warranties as to the accuracy or completeness of information included herein

and shall have no liability for the consequences of use of such information.

Short data sheet — A short data sheet is an extract from a full data sheet

with the same product type number(s) and title. A short data sheet is

intended for quick reference only and should not be relied upon to contain

detailed and full information. For detailed and full information see the relevant

full data sheet, which is available on request via the local Nexperia sales

office. In case of any inconsistency or conflict with the short data sheet, the

full data sheet shall prevail.

Terms and conditions of commercial sale — Nexperia products are

sold subject to the general terms and conditions of commercial sale, as

published at http://www.nexperia.com/profile/terms, unless otherwise agreed

in a valid written individual agreement. In case an individual agreement is

concluded only the terms and conditions of the respective agreement shall

apply. Nexperia hereby expressly objects to applying the customer’s general

terms and conditions with regard to the purchase of Nexperia products by

customer.

Product specification — The information and data provided in a Product

data sheet shall define the specification of the product as agreed between

Nexperia and its customer, unless Nexperia and customer have explicitly

agreed otherwise in writing. In no event however, shall an agreement be

valid in which the Nexperia product is deemed to offer functions and qualities

beyond those described in the Product data sheet.

No offer to sell or license — Nothing in this document may be interpreted

or construed as an offer to sell products that is open for acceptance or the

grant, conveyance or implication of any license under any copyrights, patents

or other industrial or intellectual property rights.

Export control — This document as well as the item(s) described herein

may be subject to export control regulations. Export might require a prior

authorization from competent authorities.

Disclaimers

Limited warranty and liability — Information in this document is believed

to be accurate and reliable. However, Nexperia does not give any

representations or warranties, expressed or implied, as to the accuracy

or completeness of such information and shall have no liability for the

consequences of use of such information. Nexperia takes no responsibility

for the content in this document if provided by an information source outside

of Nexperia.

Non-automotive qualified products — Unless this data sheet expressly

states that this specific Nexperia product is automotive qualified, the

product is not suitable for automotive use. It is neither qualified nor tested in

accordance with automotive testing or application requirements. Nexperia

accepts no liability for inclusion and/or use of non-automotive qualified

products in automotive equipment or applications.

In no event shall Nexperia be liable for any indirect, incidental, punitive,

special or consequential damages (including - without limitation - lost

profits, lost savings, business interruption, costs related to the removal

or replacement of any products or rework charges) whether or not such

damages are based on tort (including negligence), warranty, breach of

contract or any other legal theory.

In the event that customer uses the product for design-in and use in

automotive applications to automotive specifications and standards,

customer (a) shall use the product without Nexperia’s warranty of the

product for such automotive applications, use and specifications, and (b)

whenever customer uses the product for automotive applications beyond

Nexperia’s specifications such use shall be solely at customer’s own risk,

and (c) customer fully indemnifies Nexperia for any liability, damages or failed

product claims resulting from customer design and use of the product for

automotive applications beyond Nexperia’s standard warranty and Nexperia’s

product specifications.

Notwithstanding any damages that customer might incur for any reason

whatsoever, Nexperia’s aggregate and cumulative liability towards customer

for the products described herein shall be limited in accordance with the

Terms and conditions of commercial sale of Nexperia.

Translations — A non-English (translated) version of a document is for

reference only. The English version shall prevail in case of any discrepancy

between the translated and English versions.

Right to make changes — Nexperia reserves the right to make changes

to information published in this document, including without limitation

specifications and product descriptions, at any time and without notice. This

document supersedes and replaces all information supplied prior to the

publication hereof.

Trademarks

Suitability for use — Nexperia products are not designed, authorized or

warranted to be suitable for use in life support, life-critical or safety-critical

systems or equipment, nor in applications where failure or malfunction

of an Nexperia product can reasonably be expected to result in personal

Notice: All referenced brands, product names, service names and

trademarks are the property of their respective owners.

©

74AHC_AHCT123A

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 17 June 2020

18 / 19

Nexperia

74AHC123A; 74AHCT123A

Dual retriggerable monostable multivibrator with reset

Contents

1. General description......................................................1

2. Features and benefits.................................................. 1

3. Ordering information....................................................1

4. Functional diagram.......................................................2

5. Pinning information......................................................4

5.1. Pinning.........................................................................4

5.2. Pin description.............................................................4

6. Functional description................................................. 5

7. Limiting values............................................................. 5

8. Recommended operating conditions..........................6

9. Static characteristics....................................................6

10. Dynamic characteristics............................................ 8

10.1. Waveforms...............................................................11

11. Package outline........................................................ 14

12. Abbreviations............................................................17

13. Revision history........................................................17

14. Legal information......................................................18

For more information, please visit: http://www.nexperia.com

For sales office addresses, please send an email to: salesaddresses@nexperia.com

Date of release: 17 June 2020

©

74AHC_AHCT123A

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 17 June 2020

19 / 19


型号：	74AHCT123AD
厂家：	Nexperia
描述：	Dual retriggerable monostable multivibrator with resetProduction 时钟光电二极管逻辑集成电路
文件：	总19页 (文件大小：297K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

74AHCT123AD [NEXPERIA]

相关型号：

SI9130DB

SI9135LG-T1

SI9135LG-T1-E3

SI9135_11

SI9136_11

SI9130CG-T1-E3

SI9130LG-T1-E3

SI9130_11

SI9137

SI9137DB

SI9137LG

SI9122E