ROHM BU4584B Technical data

1

Standard ICs

Hex Schmitt trigger

BU4584B / BU4584BF / BU4584BFV

The BU4584B, BU4584BF, and BU4584BFV are inverter-type Schmitt trigger circuits, with six circuits mounted on a
single chip. These are ideal when enhanced noise immunity is required, and when wave form rectification circuits
with slow rise or fall input times are involved.

•

Features

1) Low power dissipation.

2) Wide range of operating power supply voltage.

3) High input impedance.

4) High fan-out.

5) Direct drive of 2 L-TTL inputs and LS-TTL input.

•

Block diagram

1

I

1

2

O

1

3

I

2

4

O

2

5

I

3

6

O

3

7

14

13

12

11

10

9

8

V

SS

VDD

I6

O6

I5

O5

I4

O4

•

Absolute maximum ratings (VSS = 0v, Ta = 25°C)

Parameter Symbol Limits Unit

V

DD V

mW

°C
°C

V

IN V

– 0.3 ~ + 18

Pd
Topr
Tstg

1000 (DIP), 450 (SOP), 350 (SSOP)

Power supply voltage
Power dissipation
Operating temperature
Storage temperature
Input voltage

– 0.3 ~ V

DD + 0.3

– 40 ~ + 85
– 55 ~ + 150

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2

Standard ICs BU4584B / BU4584BF / BU4584BFV

Parameter Symbol Min. Typ. Max. Unit Conditions

Measurement

circuit

VDD (V)

V

IH

3.5

——

V

5

—

7.0

——

10

11.0

——

15

V

IL

——

1.5
V

5

———

3.0 10

——

4.0 15

I

IH

——

0.3 µ

A15V

IH = 15V

I

IL

——

– 0.3 µ

A15V

IL = 0V

V

OH

4.95

——

V

5

I

O = 0mA

Fig.1

109.95

——

1514.95

——

V

OL

——

0.05
V

5

I

O = 0mA10

——

0.05

15

——

0.05

I

OH

– 0.44

——

mA

5VOH = 4.6V

V

OH = 9.5V

V

OH = 13.5V

10– 1.1

——

15– 3.0

——

I

OL

0.44

——

mA

5V

OL = 0.4V

V

OL = 0.5V

V

OL = 1.5V

101.1

——

153.0

——

I

DD

——

1

µ

A

5

————

210

——

45

V

H

0.15

—

0.6
V

5

—

Fig.1100.25

—

1.0

150.40

—

1.5

Input high level voltage

Input low level voltage

Input high level current
Input low level current

Output high level voltage

Output low level voltage

Output high level current

Output low level current

Static current
consumption

Hysteresis voltage

•

Electrical characteristics

DC characteristics (unless otherwise noted, V

SS = 0V, Ta = 25°C)

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

SS = 0 V, CL =50pF)

Parameter Symbol Min. Typ. Max. Unit Conditions

Measurement

circuit

VDD (V)

t

TLH

100

—

ns

5

—

Fig.250

—

10

40

—

15

t

THL

100

—

ns

5

—

Fig.250

—

10

40

—

15

t

PLH

125

—

ns

5

—

Fig.260

—

10

50

—

15

t

PHL

125

—

ns

5

—

Fig.260

—

10

50

—

—
—
—
—
—
—
—
—
—
—
—
—

15

Output rise time

Output fall time

Propagation delay time,
"L" to "H"

Propagation delay time,
"H" to "L"