SN55138, SN75138

QUADRUPLE BUS TRANSCEIVERS

SLLS079B – SEPTEMBER 1973 – REVISED MAY 1995

4

POST OFFICE BOX 655303

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

PARAMETER

TEST CONDITIONS†

SN55138

SN75138

UNIT

PARAMETER

TEST CONDITIONS†

MIN

TYP‡

MAX

MIN

TYP‡

MAX

UNIT

VIK

Input clamp

voltage

Driver or

strobe

VCC = MIN,

II = – 12 mA

–1.5

–1.5

V

VOH

High-level

output

voltage

Receiver

VCC = MIN,

VIL(R) = VIL max,

VIH(S) = 2 V,

IOH = – 400 µA

2.4

3.5

2.4

3.5

V

VOL

Low-level

output

Driver

VCC = MIN,

VIL(S) = 0.8 V,

VIH(D) = 2 V,

IOL = 100 mA

0.45

0.45

V

VOL

out ut

voltage

Receiver

VCC = MIN,

VIH(S) = 2 V,

VIH(R) = VIH min,

IOL = 16 mA

0.4

0.4

V

II(max)

Input current

at maximum

input voltage

Driver or

strobe

VCC = MAX,

VI = VCC

1

1

mA

IIH

High-level

Driver or

strobe

VCC = MAX,

VI = 2.4 V

40

40

µA

IIH

g

input current

Receiver

VCC = 5 V,

VI(R) = 4.5 V,

25

300

25

300

µA

Receiver

CC

VI(S) = 2 V

I(R)

25

300

25

300

IIL

Low-level

Driver or

strobe

VCC = MAX,

VI = 0.4 V

–1

–1.6

–1

–1.6

mA

IIL

input current

Receiver

VCC = MAX,

VI(R) = 0.45 V,

50

50

µA

Receiver

CC

VI(S) = 2 V

I(R)

– 50

– 50

µA

II( ff)

Input current

with power

Receiver

VCC =0

VI =4 5V

11

15

11

15

mA

II(off)

with ower

off

Receiver

VCC = 0,

VI = 4.5 V

1.1

1.5

1.1

1.5

mA

IOS

Short-circuit

output

Receiver

VCC = MAX

20

55

18

55

mA

IOS

out ut

current§

Receiver

VCC = MAX

– 20

– 55

– 18

– 55

mA

All driver

VCC = MAX,

VI(D) = 2 V,

50

65

50

65

Supply

outputs low

CC

VI(S) = 0.8 V

I(D)

50

65

50

65

ICC

Supply

current

All driver

outputs

VCC = MAX,

VI(R) = 3.5 V,

VI(S) =2V

42

55

42

55

mA

out uts

high

VI(S) = 2 V,

Receiver outputs open

42

55

42

55

† For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. Parenthetical letters D,

R, and S used with VI refer to the driver input, receiver input, and strobe input, respectively.

‡ All typical values are at VCC = 5 V, TA = 25°C.

§ Not more than one output should be shorted at a time.

PARAMETER¶

FROM

TO

TEST CONDITIONS

MIN

TYP

MAX

UNIT

PARAMETER¶

(INPUT)

(OUTPUT)

TEST CONDITIONS

MIN

TYP

MAX

UNIT

tPLH

Driver

Driver

15

24

ns

tPHL

Driver

Driver

CL =50 pF

RL =50 Ω

See Figure 1

14

24

ns

tPLH

Strobe

Driver

CL = 50 pF,

RL = 50 Ω,

See Figure 1

18

28

ns

tPHL

Strobe

Driver

22

32

ns

tPLH

Receiver

Receiver

CL =15 pF

RL = 400 Ω

See Figure 2

7

15

ns

tPHL

Receiver

Receiver

CL = 15 pF

RL = 400 Ω,

See Figure 2

8

15

ns

¶ tPLH = propagation delay time, low- to high-level output

tPHL = propagation delay time, high- to low-level output