Standard ics bu4538b – Rainbow Electronics BU4538B User Manual

Page 3

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3

Standard ICs

BU4538B

Parameter

Symbol

Min.

Typ.

Max.

Unit

Conditions

t

TLH

—

100

—

ns

5

—

—

50

—

10

—

40

—

15

t

THL

—

100

—

ns

5

—

—

50

—

10

—

40

—

15

t

PLH

t

PHL

—

300

—

ns

5

—

—

150

—

10

—

100

—

15

t

PLH

t

PHL

—

250

—

ns

5

—

—

125

—

10

—

95

—

15

t

WIN

—

50

—

ns

5

—

—

30

—

10

—

25

—

15

t

WOUT1

185

200

215

µ

s

5

185

200

215

10

185

200

215

15

t

WOUT2

8.8

9.4

10.0

ms

5

8.8

9.4

10.0

10

8.8

9.4

10.0

15

t

rr

—

0

—

ns

5

—

—

0

—

10

—

0

—

15

C

IN

—

5

—

pF

—

—

C

X

= 2000pF, R

X

= 100k

Ω

C

X

= 0.1

µ

F, R

X

= 100k

Ω

V

DD

(V)

Output rise time

Output fall time

Propagation delay
time A, B to Q, Q

Propagation delay
time C

D

to Q, Q

Minimum input
pulse width

Output pulse width 1

Output pulse width 2

Minimum retrigger
time

Input capacitance

Switching characteristics (unless otherwise noted, Ta = 25°C, C

L

= 50pF, V

SS

= 0V)

•

Recommended operating conditions

Parameter

Symbol

Min.

Typ.

Max.

Unit

Conditions

R

X

5

—

1000

k

Ω

—

C

X

No Limit

pF

—

External timing resistance

External timing capacitance

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