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MC14538BFR1

Dual Precision Retiggerable/Resettable Monostable Multivibrator

ON Semiconductor 

MC14538B

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ELECTRICAL CHARACTERISTICS (Voltages Referenced to VSS)

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ VDD

– 55_C

25_C

125_C

Characteristic

Symbol Vdc

Min

Max

Min Typ (4.) Max

Min

Max Unit

Output Voltage

Vin = VDD or 0

“0” Level VOL

5.0

10

15

—

0.05

—

—

0.05

—

—

0.05

—

0

0.05

—

0.05 Vdc

0

0.05

—

0.05

0

0.05

—

0.05

Vin = 0 or VDD

“1” Level VOH

5.0

4.95

—

4.95

5.0

10

9.95

—

9.95

10

15

14.95

—

14.95

15

—

4.95

—

Vdc

—

9.95

—

—

14.95

—

Input Voltage

“0” Level VIL

(VO = 4.5 or 0.5 Vdc)

(VO = 9.0 or 1.0 Vdc)

(VO = 13.5 or 1.5 Vdc)

“1” Level VIH

(VO = 0.5 or 4.5 Vdc)

(VO = 1.0 or 9.0 Vdc)

(VO = 1.5 or 13.5 Vdc)

Output Drive Current

(VOH = 2.5 Vdc)

(VOH = 4.6 Vdc)

(VOH = 9.5 Vdc)

(VOH = 13.5 Vdc)

IOH

Source

5.0

—

1.5

—

2.25

10

—

3.0

—

4.50

15

—

4.0

—

6.75

5.0

3.5

—

3.5

2.75

10

7.0

—

7.0

5.50

15

11

—

11

8.25

5.0 – 3.0

—

– 2.4

– 4.2

5.0 – 0.64 — – 0.51 – 0.88

10

– 1.6

—

– 1.3 – 2.25

15

– 4.2

—

– 3.4

– 8.8

Vdc

1.5

—

1.5

3.0

—

3.0

4.0

—

4.0

Vdc

—

3.5

—

—

7.0

—

—

11

—

mAdc

—

– 1.7

—

— – 0.36 —

—

– 0.9

—

—

– 2.4

—

(VOL = 0.4 Vdc)

(VOL = 0.5 Vdc)

(VOL = 1.5 Vdc)

Sink IOL

Input Current, Pin 2 or 14

Iin

Input Current, Other Inputs

Iin

Input Capacitance, Pin 2 or 14

Cin

Input Capacitance, Other Inputs

Cin

(Vin = 0)

Quiescent Current

IDD

(Per Package)

Q = Low, Q = High

5.0

0.64

—

0.51

0.88

10

1.6

—

1.3

2.25

15

4.2

—

3.4

8.8

—

0.36

— mAdc

—

0.9

—

—

2.4

—

15

—

± 0.05

— ± 0.00001 ± 0.05

—

± 0.5 µAdc

15

—

± 0.1

— ± 0.00001 ± 0.1

—

± 1.0 µAdc

—

—

—

—

25

—

—

—

pF

—

—

—

—

5.0

7.5

—

—

pF

5.0

—

5.0

—

0.005

5.0

—

150 µAdc

10

—

10

—

0.010

10

—

300

15

—

20

—

0.015

20

—

600

Quiescent Current, Active State

(Both) (Per Package)

Q = High, Q = Low

IDD

5.0

—

10

—

15

—

2.0

—

2.0

—

2.0

—

0.04

0.20

—

2.0 mAdc

0.08

0.45

—

2.0

0.13

0.70

—

2.0

Total Supply Current at an external

IT

5.0

load capacitance (CL) and at

10

external timing network (RX, CX) (5.)

IT = (3.5 x 10–2) RXCXf + 4CXf + 1 x 10–5 CLf

IT = (8.0 x 10–2) RXCXf + 9CXf + 2 x 10–5 CLf

IT = (1.25 x 10–1) RXCXf + 12CXf + 3 x 10–5 CLf

where: IT in µA (one monostable switching only),

where: CX in µF, CL in pF, RX in k ohms, and

where: f in Hz is the input frequency.

µAdc

4. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.

5. The formulas given are for the typical characteristics only at 25_C.

http://onsemi.com

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