74HCT123D-Q100,115_技术文档

74HC123-Q100; 74HCT123-Q100

Dual retriggerable monostable multivibrator with reset

Rev. 1 — 1 August 2012

Product data sheet

1. General description

The 74HC123-Q100; 74HCT123-Q100 are high-speed Si-gate CMOS devices and are pin

compatible with Low-power Schottky TTL (LSTTL). They are specified in compliance with

JEDEC standard no. 7A.

The 74HC123-Q100; 74HCT123-Q100 are dual retriggerable monostable multivibrators

with output pulse width control by three methods:

1. The basic pulse is defined by the selection of the external resistor (R_EXT) and

capacitor (C_EXT).

2. Once triggered, the basic output pulse width may be extended by retriggering the

gated active LOW-going edge input (nA) or the active HIGH-going edge input (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, which also inhibits the triggering.

3. An internal connection from nRD to the input gates makes it possible to trigger the

circuit by a HIGH-going signal at input nRD as shown in Table 3.

Schmitt trigger action in the nA and nB inputs, makes the circuit highly tolerant to slower

input rise and fall times.

This product has been qualified to the Automotive Electronics Council (AEC) standard

Q100 (Grade 1) and is suitable for use in automotive applications.

2. Features and benefits

 Automotive product qualification in accordance with AEC-Q100 (Grade 1)

 Specified from 40 C to +85 C and from 40 C to +125 C

 DC triggered from active HIGH or active LOW inputs

 Retriggerable for very long pulses up to 100 % duty factor

 Direct reset terminates output pulse

 Schmitt trigger action on all inputs except for the reset input

 ESD protection:

 MIL-STD-883, method 3015 exceeds 2000 V

 HBM JESD22-A114F exceeds 2000 V

 MM JESD22-A115-A exceeds 200 V (C = 200 pf, R = 0 )

 Specified from 40 C to +85 C and from 40 C to +125 C

74HC123-Q100; 74HCT123-Q100

NXP Semiconductors

Dual retriggerable monostable multivibrator with reset

3. Ordering information

Table 1.

Ordering information

Type number

Package

Temperature range Name

Description

Version

74HC123D-Q100

74HCT123D-Q100

40 C to +125 C

SO16

plastic small outline package; 16 leads;

body width 3.9 mm

SOT109-1

74HC123PW-Q100 40 C to +125 C

TSSOP16

plastic thin shrink small outline package; 16 leads; SOT403-1

body width 4.4 mm

74HCT123PW-Q100

74HC123BQ-Q100

40 C to +125 C

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

SOT763-1

4. Functional diagram

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

001aaa610

Fig 1. Functional diagram

74HC_HCT123_Q100

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

Product data sheet

Rev. 1 — 1 August 2012

2 of 23

74HC123-Q100; 74HCT123-Q100

NXP Semiconductors

Dual retriggerable monostable multivibrator with reset

14

CX

15

13

RCX

1

&

2

1CEXT 14

2CEXT

4

6

3

R

1REXT/CEXT 15

2REXT/CEXT

7

6

7

S

CX

1Q 13

5

Q

RCX

2Q

5

1

9

1A

2A

9

T

&

10

1Q

4

2

1B

12

2Q 12

RD

10 2B

11

R

3

1RD

mna515

11

2RD

mna516

Fig 2. Logic symbol

Fig 3. IEC logic symbol

nREXT/CEXT

V

CC

nQ

nRD

R

CL

V

CC

V

CC

R

CL

nA

nB

R

mna518

Fig 4. Logic diagram

74HC_HCT123_Q100

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

Product data sheet

Rev. 1 — 1 August 2012

3 of 23

74HC123-Q100; 74HCT123-Q100

NXP Semiconductors

Dual retriggerable monostable multivibrator with reset

5. Pinning information

5.1 Pinning

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(1) The die substrate is attached to this pad using

conductive die attach material. It cannot be used as

supply pin or input.

Fig 5. Pin configuration for SO16 and TSSOP16

Fig 6. Pin configuration for DHVQFN16

5.2 Pin description

Table 2.

Symbol

1A

Pin description

1

Description

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

74HC_HCT123_Q100

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

Product data sheet

Rev. 1 — 1 August 2012

4 of 23

74HC123-Q100; 74HCT123-Q100

NXP Semiconductors

Dual retriggerable monostable multivibrator with reset

6. Functional description

Table 3.

Function table^[1]

Input

nRD

L

Output

nA

X

nB

X

nQ

H

L

X

H

X

L^[2]

H^[2]

X

L

H

L



H



H



L

[1] 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.

[2] If the monostable was triggered before this condition was established, the pulse continues 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

V_CC

I_IK

Parameter

Conditions

Min

Max

+7

Unit

V

supply voltage

0.5

input clamping current

output clamping current

output current

V_I< 0.5 V or V_I> V_CC+ 0.5 V

V_O< 0.5 V or V_O> V_CC+ 0.5 V

-

20

25

mA

I_OK

I_O

except for pins nREXT/CEXT;

V_O= 0.5 V to (V_CC+ 0.5 V)

I_CC

supply current

-

50

mA

C

I_GND

T_stg

P_tot

ground current

-

50

+150

storage temperature

total power dissipation

SO16 package

65

[3]

[4]

[5]

-

500

mW

TSSOP16 package

DHVQFN16 package

[3] For SO16 packages: P_totderates linearly with 8 mW/K above 70 C.

[4] For TSSOP16 packages: P_totderates linearly with 5.5 mW/K above 60 C.

[5] For DHVQFN16 packages: P_totderates linearly with 4.5 mW/K above 60 C.

74HC_HCT123_Q100

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

Product data sheet

Rev. 1 — 1 August 2012

5 of 23

74HC123-Q100; 74HCT123-Q100

NXP Semiconductors

Dual retriggerable monostable multivibrator with reset

8. Recommended operating conditions

Table 5.

Recommended operating conditions

Symbol Parameter

Conditions

74HC123-Q100

74HCT123-Q100

Unit

Min

Typ

Max

Min

Typ

Max

V_CC

V_I

supply voltage

input voltage

output voltage

2.0

0

5.0

6.0

V_CC

4.5

0

5.0

5.5

V_CC

V

-

V_O

0

t/V

input transition rise and

fall rate

nRD input

V_CC= 2.0 V

V_CC= 4.5 V

V_CC= 6.0 V

-

625

139

83

-

ns/V

-

1.67

-

1.67

-

139 ns/V

ns/V

+125 C

-

T_amb

ambient temperature

40

+25

+125

40

+25

9. Static characteristics

Table 6.

Static characteristics

At recommended operating conditions; 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

74HC123-Q100

V_IH

HIGH-level

input voltage

V_CC= 2.0 V

1.5

1.2

2.4

3.2

0.8

-

1.5

-

1.5

-

V

V_CC= 4.5 V

3.15

V_CC= 6.0 V

4.2

-

4.2

-

4.2

-

V_IL

LOW-level

input voltage

V_CC= 2.0 V

-

0.5

-

0.5

1.35

1.8

-

0.5

1.35

1.8

V_CC= 4.5 V

2.1 1.35

V_CC= 6.0 V

2.8

1.8

V_OH

HIGH-level

V_I= V_IHor V_IL

output voltage

I_O= 20 A; V_CC= 2.0 V

I_O= 20 A; V_CC= 4.5 V

I_O= 20 A; V_CC= 6.0 V

I_O= 4 mA; V_CC= 4.5 V

I_O= 5.2 mA; V_CC= 6.0 V

V_I= V_IHor V_IL

1.9

4.4

5.9

2.0

4.5

6.0

-

1.9

4.4

-

1.9

4.4

5.9

3.7

5.2

-

V

5.9

3.98 4.32

5.48 5.81

3.84

5.34

V_OL

LOW-level

output voltage

I_O= 20 A; V_CC= 2.0 V

I_O= 20 A; V_CC= 4.5 V

I_O= 20 A; V_CC= 6.0 V

I_O= 4 mA; V_CC= 4.5 V

I_O= 5.2 mA; V_CC= 6.0 V

-

0

0.1

-

0.1

-

0.1

0.4

1.0

V

0.1

V

0.15 0.26

0.16 0.26

0.33

1.0

V

I_I

input leakage V_I= V_CCor GND; V_CC= 6.0 V

current

-

0.1

A

I_CC

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

V_CC= 6.0 V

-

8.0

-

80

-

160

A

74HC_HCT123_Q100

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Product data sheet

Rev. 1 — 1 August 2012

6 of 23

74HC123-Q100; 74HCT123-Q100

NXP Semiconductors

Dual retriggerable monostable multivibrator with reset

Table 6.

Static characteristics …continued

At recommended operating conditions; 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

C_I

input

-

3.5

-

pF

capacitance

74HCT123-Q100

V_IH

HIGH-level

input voltage

V_CC= 4.5 V to 5.5 V

2.0

-

1.6

1.2

-

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= 20 A

4.4

4.5

-

4.4

-

4.4

3.7

-

V

I_O= 4 mA

3.98 4.32

3.84

V_OL

LOW-level

output voltage

V_I= V_IHor V_IL; V_CC= 4.5 V

I_O= 20 A

-

0

0.1

-

0.1

-

0.1

0.4

V

I_O= 4.0 mA

0.15 0.26

0.33

1.0

V

I_I

input leakage V_I= V_CCor GND; V_CC= 5.5 V

current

-

0.1

1.0

A

I_CC

I_CC

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

V_CC= 5.5 V

-

8.0

-

80

-

160

A

additional

supply current V_I= V_CC 2.1 V;

other inputs at V_CCor GND;

per input pin; I_O= 0 A;

V_CC= 4.5 V to 5.5 V

pins nA, nB

-

35

50

125

180

-

160

225

-

170

245

-

A

pF

pin nRD

C_I

input

3.5

capacitance

74HC_HCT123_Q100

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

Product data sheet

Rev. 1 — 1 August 2012

7 of 23

74HC123-Q100; 74HCT123-Q100

NXP Semiconductors

Dual retriggerable monostable multivibrator with reset

10. Dynamic characteristics

Table 7.

Dynamic characteristics

Voltages are referenced to GND (ground = 0 V); C_L= 50 pF unless otherwise specified; for test circuit see Figure 12.

Symbol Parameter Conditions

74HC123-Q100

25 C

40 C to +85 C 40 C to +125 C Unit

Min Typ Max

Min

Max

Min

Max

[1]

t_pd

propagation nRD, nA, nB to nQ or nQ;

delay

C_EXT= 0 pF; R_EXT= 5 k;

see Figure 9

V_CC= 2.0 V

-

83

30

26

24

255

51

-

320

64

-

385

77

-

ns

V_CC= 4.5 V

V_CC= 5 V; C_L= 15 pF

V_CC= 6.0 V

43

54

65

nRD (reset) to nQ or nQ;

C_EXT= 0 pF; R_EXT= 5 k;

see Figure 9

V_CC= 2.0 V

V_CC= 4.5 V

-

66

24

20

19

215

43

-

270

54

-

325

65

-

ns

V_CC= 5 V; C_L= 15 pF

V_CC= 6.0 V

37

46

55

[1]

t_t

transition

time

see Figure 9

V_CC= 2.0 V

-

19

7

75

15

13

-

95

19

16

-

110

22

ns

V_CC= 4.5 V

V_CC= 6.0 V

6

19

t_W

pulse width nA LOW; see Figure 10

V_CC= 2.0 V

100

20

8

3

2

-

125

25

-

150

30

-

ns

V_CC= 4.5 V

V_CC= 6.0 V

17

21

26

nB HIGH; see Figure 10

V_CC= 2.0 V

100

20

17

6

-

125

25

-

150

30

-

ns

V_CC= 4.5 V

V_CC= 6.0 V

17

5

21

26

nRD LOW; see Figure 11

V_CC= 2.0 V

100

20

14

5

-

125

25

-

150

30

-

ns

V_CC= 4.5 V

V_CC= 6.0 V

17

4

21

26

[2]

nQ HIGH and nQ LOW;

V_CC= 5.0 V;

see Figure 10 and Figure 11

C_EXT= 100 nF; R_EXT= 10

k

-

450

75

-

s

C_EXT= 0 pF; R_EXT= 5 k

ns

74HC_HCT123_Q100

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

Product data sheet

Rev. 1 — 1 August 2012

8 of 23

74HC123-Q100; 74HCT123-Q100

NXP Semiconductors

Dual retriggerable monostable multivibrator with reset

Table 7.

Dynamic characteristics …continued

Voltages are referenced to GND (ground = 0 V); C_L= 50 pF unless otherwise specified; for test circuit see Figure 12.

Symbol Parameter Conditions

25 C

40 C to +85 C 40 C to +125 C Unit

Min Typ Max

Min

Max

Min

Max

[3][4]

t_rtrig

retrigger

time

nA, nB; C_EXT= 0 pF; R_EXT

5 k; V_CC= 5.0 V;

see Figure 10

=

-

110

-

ns

R_EXT

external

see Figure 7

resistance

V_CC= 2.0 V

10

2

-

1000

-

k

pF

V_CC= 5.0 V

[4]

[5]

C_EXT

C_PD

external

capacitance

V_CC= 5.0 V; see Figure 7

-

power

per monostable; V_I= GND

-

54

-

pF

dissipation to V_CC

capacitance

74HCT123-Q100

t_PHL

HIGH to

LOW

nRD, nA, nB to nQ or nQ;

C_EXT= 0 pF; R_EXT= 5 k;

propagation see Figure 9

delay

V_CC= 4.5 V

-

30

26

51

-

64

-

77

-

ns

V_CC= 5 V; C_L= 15 pF

nRD (reset) to nQ or nQ;

C_EXT= 0 pF; R_EXT= 5 k;

see Figure 9

V_CC= 4.5 V

-

27

23

46

-

58

-

69

-

ns

V_CC= 5 V; C_L= 15 pF

t_PLH

LOW to

HIGH

nRD, nA, nB to nQ or nQ;

C_EXT= 0 pF; R_EXT= 5 k;

propagation see Figure 9

delay

V_CC= 4.5 V

-

28

26

51

-

64

-

77

-

ns

V_CC= 5 V; C_L= 15 pF

nRD (reset) to nQ or nQ;

C_EXT= 0 pF; R_EXT= 5 k;

see Figure 9

V_CC= 4.5 V

-

23

7

46

-

58

-

69

-

ns

V_CC= 5 V; C_L= 15 pF

V_CC= 4.5 V; see Figure 9

[1]

t_t

transition

time

15

19

22

t_W

pulse width V_CC= 4.5 V

nA LOW; see Figure 10

20

3

5

7

-

25

-

30

-

ns

nB HIGH; see Figure 10

nRD LOW; see Figure 11

nQ HIGH and nQ LOW;

[2]

V_CC= 5.0 V; see Figure 10

and Figure 11

C_EXT= 100 nF; R_EXT= 10

k

-

450

75

-

s

C_EXT= 0 pF; R_EXT= 5 k

ns

74HC_HCT123_Q100

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

Product data sheet

Rev. 1 — 1 August 2012

9 of 23

74HC123-Q100; 74HCT123-Q100

NXP Semiconductors

Dual retriggerable monostable multivibrator with reset

Table 7.

Dynamic characteristics …continued

Voltages are referenced to GND (ground = 0 V); C_L= 50 pF unless otherwise specified; for test circuit see Figure 12.

Symbol Parameter Conditions

25 C

40 C to +85 C 40 C to +125 C Unit

Min Typ Max

Min

Max

Min

Max

[3][4]

t_rtrig

retrigger

time

nA, nB; C_EXT= 0 pF; R_EXT

5 k; V_CC= 5.0 V;

see Figure 10

=

-

2

-

110

-

ns

R_EXT

C_EXT

C_PD

external

timing

resistor

V_CC= 5.0 V; see Figure 7

per monostable; V_I= GND

-

1000

-

k

pF

[4]

[5]

external

timing

capacitor

-

power

-

56

dissipation to V_CC

capacitance

[1] t_pdis the same as t_PHLand t_PLH; t_tis the same as t_THLand t_TLH

[2] For other R_EXTand C_EXTcombinations, see Figure 7. If C_EXT> 10 nF, the following formula is valid.

t_W= K  R_EXT C_EXT, where:

t_W= typical output pulse width in ns;

R_EXT= external resistor in k;

C_EXT= external capacitor in pF;

K = constant = 0.45 for V_CC= 5.0 V and 0.55 for V_CC= 2.0 V.

The inherent test jig and pin capacitance at pins 15 and 7 (nREXT/CEXT) is approximately 7 pF.

[3] The time to retrigger the monostable multivibrator depends on the values of R_EXTand C_EXT. The output pulse width is only extended

when the time between the active-going edges of the trigger input pulses meets the minimum retrigger time. If C_EXT>10 pF, the next

formula (at V_CC= 5.0 V) for the setup time of a retrigger pulse is valid:

t_rtrig= 30 + 0.19  R_EXT C_EXT^0.9+ 13  R_EXT^1.05, where:

t_rtrig= retrigger time in ns;

C_EXT= external capacitor in pF; R_EXT= external resistor in k.

The inherent test jig and pin capacitance at pins 15 and 7 (nREXT/CEXT) is 7 pF.

[4] When the device is powered-up, initiate the device via a reset pulse, when C_EXT< 50 pF.

[5] C_PDis used to determine the dynamic power dissipation (P_Din W).

P_D= C_PD V_CC² f_i+ (C_L V_CC² f_o) + 0.75  C_EXT V_CC² f_o+ D  16  V_CCwhere:

f_i= input frequency in MHz;

f_o= output frequency in MHz;

D = duty factor in %;

C_L= output load capacitance in pF;

V_CC= supply voltage in V;

C_EXT= timing capacitance in pF;

(C_L V_CC² f_o) sum of outputs.

74HC_HCT123_Q100

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

Product data sheet

Rev. 1 — 1 August 2012

10 of 23

74HC123-Q100; 74HCT123-Q100

NXP Semiconductors

Dual retriggerable monostable multivibrator with reset

001aaa611

001aaa612

6

10

0.8

t

W

'K' factor

(ns)

(1)

(2)

5

4

3

2

10

0.6

0.4

0.2

0

(3)

(4)

10

2

3

4

1

10

(pF)

0

2

4

6

8

C

V

(V)

CC

EXT

V_CC= 5.0 V; T_amb= 25 C.

_EXT= 100 k

C_EXT= 10 nF; R_EXT= 10 k to 100 k.

_amb= 25 C.

(1)

R

T

(2) R_EXT= 50 k

(3) R_EXT= 10 k

(4)

R_EXT= 2 k

Fig 7. Typical output pulse width as a function of the

external capacitor value

Fig 8. 74HC123-Q100 typical ‘K’ factor as function of

V_CC

74HC_HCT123_Q100

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Product data sheet

Rev. 1 — 1 August 2012

11 of 23

74HC123-Q100; 74HCT123-Q100

NXP Semiconductors

Dual retriggerable monostable multivibrator with reset

11. Waveforms

V

I

V

nB input

GND

M

t

W

V

I

V

M

nA input

GND

t

W

V

I

V

nRD input

GND

M

t

W

PLH

V

OH

V

Y

nQ output

V

M

V

X

V

OL

t

PLH

THL

PHL

t

(reset)

W

t

W

V

OH

V

Y

nQ output

V

M

V

X

V

OL

t

PHL

PLH

PHL

001aaa771

TLH

(reset)

Measurement points are given in Table 8.

V_OLand V_OHare typical voltage output levels that occur with the output load.

Fig 9. Propagation delays from inputs (nA, nB, nRD) to outputs (nQ, nQ) and output transition times

74HC_HCT123_Q100

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Product data sheet

Rev. 1 — 1 August 2012

12 of 23

74HC123-Q100; 74HCT123-Q100

NXP Semiconductors

Dual retriggerable monostable multivibrator with reset

nB input

nA input

t

W

t

rtrig

W

nQ output

t

W

t

mna521

W

nRD = HIGH

Fig 10. Output pulse control using retrigger pulse

nB input

nRD input

t

W

nQ output

t

W

mna522

nA = LOW

Fig 11. Output pulse control using reset input nRD

74HC_HCT123_Q100

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

Product data sheet

Rev. 1 — 1 August 2012

13 of 23

74HC123-Q100; 74HCT123-Q100

NXP Semiconductors

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

CC

V

O

I

R

L

S1

G

open

DUT

R

T

C

L

001aad983

Test data is given in Table 8.

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 8.

Type

Test data

Input

V_I

Load

S1 position

t_PHL, t_PLH

open

t_r, t_f

6 ns

C_L

R_L

74HC123-Q100

74HCT123-Q100

V_CC

3 V

15 pF, 50 pF

1 k

open

74HC_HCT123_Q100

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

Product data sheet

Rev. 1 — 1 August 2012

14 of 23

74HC123-Q100; 74HCT123-Q100

NXP Semiconductors

Dual retriggerable monostable multivibrator with reset

12. Application information

12.1 Timing component connections

The basic output pulse width is defined by the values of the external timing components

_EXTand C_EXT

R

.

C

EXT

R

EXT

(1)

V

CC

GND

8

nCEXT nREXT/CEXT

14 (6) 15 (7)

13 (5)

123

nQ

1 (9)

nA

nB

2 (10)

4 (12)

3 (11)

nRD

001aaa854

(1) For minimum noise generation, ground pins 6 (2CEXT) and 14 (1CEXT) externally to pin 8 (GND).

Fig 13. Timing component connections

12.2 Power-up considerations

When the monostable is powered-up, it may produce an output pulse, with a pulse width

defined by the values of R_EXTand C_EXT. This output pulse can be eliminated using the

circuit shown in Figure 14.

C

EXT

R

EXT

V

CC

GND

8

nCEXT

14 (6)

nREXT/CEXT

15 (7)

13 (5)

123

nQ

1 (9)

nA

nB

2 (10)

4 (12)

nQ

3 (11)

nRD

V

RESET

CC

001aaa613

Fig 14. Power-up output pulse elimination circuit

74HC_HCT123_Q100

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Product data sheet

Rev. 1 — 1 August 2012

15 of 23

74HC123-Q100; 74HCT123-Q100

NXP Semiconductors

Dual retriggerable monostable multivibrator with reset

12.3 Power-down considerations

A large capacitor C_EXTmay cause problems when powering-down the monostable due to

the energy stored in this capacitor. When a system containing this device is

powered-down or a rapid decrease of V_CCto zero occurs, the monostable may sustain

damage. The damage is due to the capacitor discharging through the input protection

diodes. To avoid this possibility, use a damping diode (D_EXT) and connect as shown in

Figure 15. D_EXTis preferably a germanium or Schottky type diode able to withstand large

current surges.

D

EXT

C

EXT

R

EXT

V

CC

GND

8

nCEXT

14 (6)

nREXT/CEXT

15 (7)

13 (5)

123

nQ

1 (9)

nA

nB

2 (10)

4 (12)

nQ

3 (11)

001aaa614

nRD

Fig 15. Power-down protection circuit

74HC_HCT123_Q100

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Product data sheet

Rev. 1 — 1 August 2012

16 of 23

74HC123-Q100; 74HCT123-Q100

NXP Semiconductors

Dual retriggerable monostable multivibrator with reset

13. 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

L

p

Q

v

w

y

Z

θ

1

2

3

p

E

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

0.01

0.25

0.1

8^o

0^o

0.010 0.057

0.004 0.049

0.019 0.0100 0.39

0.014 0.0075 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 16. Package outline SOT109-1 (SO16)

74HC_HCT123_Q100

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Product data sheet

Rev. 1 — 1 August 2012

17 of 23

74HC123-Q100; 74HCT123-Q100

NXP Semiconductors

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

0.25

1

0.2

0.13

0.1

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 17. Package outline SOT403-1 (TSSOP16)

74HC_HCT123_Q100

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

Product data sheet

Rev. 1 — 1 August 2012

18 of 23

74HC123-Q100; 74HCT123-Q100

NXP Semiconductors

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

b

c

E

e

1

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 18. Package outline SOT763-1 (DHVQFN16)

74HC_HCT123_Q100

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

Product data sheet

Rev. 1 — 1 August 2012

19 of 23

74HC123-Q100; 74HCT123-Q100

NXP Semiconductors

Dual retriggerable monostable multivibrator with reset

14. Abbreviations

Table 9.

Acronym

CMOS

DUT

Abbreviations

Abbreviation

Complementary Metal Oxide Semiconductor

Device Under Test

ESD

ElectroStatic Discharge

Human Body Model

HBM

LSTTL

MM

Low-power Schottky Transistor-Transistor Logic

Machine Model

MIL

Military

15. Revision history

Table 10. Revision history

Document ID

Release date

Data sheet status

Change notice

Supersedes

74HC_HCT123_Q100 v.1 20120801

Product data sheet

-

74HC_HCT123_Q100

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Product data sheet

Rev. 1 — 1 August 2012

20 of 23

74HC123-Q100; 74HCT123-Q100

NXP Semiconductors

Dual retriggerable monostable multivibrator with reset

16. Legal information

16.1 Data sheet status

Document status^[1][2]

Product status^[3]

Development

Definition

Objective [short] data sheet

This document contains data from the objective specification for product development.

This document contains data from the preliminary specification.

This document contains the product specification.

Preliminary [short] data sheet Qualification

Product [short] data sheet Production

[1]

[2]

[3]

Please consult the most recently issued document before initiating or completing a design.

The term ‘short data sheet’ is explained in section “Definitions”.

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 URL http://www.nxp.com.

Suitability for use in automotive applications — This NXP

16.2 Definitions

Semiconductors product has been qualified for use in automotive

applications. Unless otherwise agreed in writing, the product is 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 NXP Semiconductors product can reasonably be expected

to result in personal injury, death or severe property or environmental

damage. NXP Semiconductors and its suppliers accept no liability for

inclusion and/or use of NXP Semiconductors products in such equipment or

applications and therefore such inclusion and/or use is at the customer's own

risk.

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. NXP Semiconductors 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 NXP Semiconductors sales

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

full data sheet shall prevail.

Applications — Applications that are described herein for any of these

products are for illustrative purposes only. NXP Semiconductors makes no

representation or warranty that such applications will be suitable for the

specified use without further testing or modification.

Customers are responsible for the design and operation of their applications

and products using NXP Semiconductors products, and NXP Semiconductors

accepts no liability for any assistance with applications or customer product

design. It is customer’s sole responsibility to determine whether the NXP

Semiconductors 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.

Product specification — The information and data provided in a Product

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

NXP Semiconductors and its customer, unless NXP Semiconductors and

customer have explicitly agreed otherwise in writing. In no event however,

shall an agreement be valid in which the NXP Semiconductors product is

deemed to offer functions and qualities beyond those described in the

Product data sheet.

NXP Semiconductors 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 NXP

Semiconductors 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). NXP does not accept any liability in this respect.

16.3 Disclaimers

Limited warranty and liability — Information in this document is believed to

be accurate and reliable. However, NXP Semiconductors 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. NXP Semiconductors takes no

responsibility for the content in this document if provided by an information

source outside of NXP Semiconductors.

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.

In no event shall NXP Semiconductors 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.

Notwithstanding any damages that customer might incur for any reason

whatsoever, NXP Semiconductors’ 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 NXP Semiconductors.

Terms and conditions of commercial sale — NXP Semiconductors

products are sold subject to the general terms and conditions of commercial

sale, as published at http://www.nxp.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. NXP Semiconductors hereby expressly objects to

applying the customer’s general terms and conditions with regard to the

purchase of NXP Semiconductors products by customer.

Right to make changes — NXP Semiconductors 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.

74HC_HCT123_Q100

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

Product data sheet

Rev. 1 — 1 August 2012

21 of 23

74HC123-Q100; 74HCT123-Q100

NXP Semiconductors

Dual retriggerable monostable multivibrator with reset

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.

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.

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.

16.4 Trademarks

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

are the property of their respective owners.

17. Contact information

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

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

74HC_HCT123_Q100

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

Product data sheet

Rev. 1 — 1 August 2012

22 of 23

74HC123-Q100; 74HCT123-Q100

NXP Semiconductors

Dual retriggerable monostable multivibrator with reset

18. Contents

1

2

3

4

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

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

Ordering information. . . . . . . . . . . . . . . . . . . . . 2

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

5

5.1

5.2

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

Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

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

6

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

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

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

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

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

Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

7

8

9

10

11

12

Application information. . . . . . . . . . . . . . . . . . 15

Timing component connections . . . . . . . . . . . 15

Power-up considerations . . . . . . . . . . . . . . . . 15

Power-down considerations . . . . . . . . . . . . . . 16

12.1

12.2

12.3

13

14

15

Package outline . . . . . . . . . . . . . . . . . . . . . . . . 17

Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . 20

Revision history. . . . . . . . . . . . . . . . . . . . . . . . 20

16

Legal information. . . . . . . . . . . . . . . . . . . . . . . 21

Data sheet status . . . . . . . . . . . . . . . . . . . . . . 21

Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 22

16.1

16.2

16.3

16.4

17

18

Contact information. . . . . . . . . . . . . . . . . . . . . 22

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Please be aware that important notices concerning this document and the product(s)

described herein, have been included in section ‘Legal information’.

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

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

Date of release: 1 August 2012

Document identifier: 74HC_HCT123_Q100


型号：	74HCT123D-Q100,115
厂家：	NXP
描述：	74HC(T)123-Q100 - Dual retriggerable monostable multivibrator with reset SOP 16-Pin 时钟光电二极管逻辑集成电路
文件：	总23页 (文件大小：296K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

74HCT123D-Q100,115 [NXP]

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