TEXAS INSTRUMENTS SN54ABT543A Technical data

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SN54ABT543A, SN74ABT543A

OCTAL REGISTERED TRANSCEIVERS

WITH 3-STATE OUTPUTS

SCBS157F – JANUARY 1991 – REVISED MA Y 1997

D

State-of-the-Art

EPIC-ΙΙB

 BiCMOS Design

Significantly Reduces Power Dissipation

D

ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)

D

T ypical V

(Output Ground Bounce) < 1 V

OLP

at VCC = 5 V, TA = 25°C

D

High-Drive Outputs (–32-mA IOH, 64-mA IOL)

D

Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB), and Thin Shrink Small-Outline (PW) Packages, Ceramic Chip Carriers (FK), Ceramic Flat (W) Package, and Plastic (NT) and Ceramic (JT) DIPs

description

The ’ABT543A octal transceivers contain two sets of D-type latches for temporary storage of data flowing in either direction. Separate latch-enable (LEAB

or LEBA) and output-enable (OEAB or OEBA) inputs are provided for each register to permit independent control in either direction of data flow.

The A-to-B enable (CEAB) input must be low to enter data from A or to output data from B. If CEAB is low and LEAB is low, the A-to-B latches are transparent; a subsequent low-to-high transition of LEAB With CEAB and OEAB both low, the 3-state B outputs are active and reflect the data present at the output of the A latches. Data flow from B to A is similar, but requires using the CEBA and OEBA inputs.

T o ensure the high-impedance state during power up or power down, OE should be tied to V through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

puts the A latches in the storage mode.

, LEBA,

CC

SN54ABT543A . . . JT OR W PACKAGE

SN74ABT543A . . . DB, DW, NT, OR PW PACKAGE

OEBA

CEAB

SN54ABT543A . . . FK PACKAGE

A2 A3 A4

NC

A5 A6 A7

NC – No internal connection

(TOP VIEW)

LEBA

GND

1 2 3

A1 A2

4 5

A3 A4

6 7

A5

8

A6

9

A7

10

A8

11 12

(TOP VIEW)

A1

OEBA

LEBANCCEBA

3212827

426

5 6 7 8 9 10 11

12 13

14 15 16 17 18

A8

GND

CEAB

NC

24 23 22 21 20 19 18 17 16 15 14 13

CC

V

OEAB

V

CC

CEBA B1 B2 B3 B4 B5 B6 B7 B8 LEAB OEAB

B1

25 24 23 22 21 20 19

B8

LEAB

B2 B3 B4 NC B5 B6 B7

The SN54ABT543A is characterized for operation over the full military temperature range of –55°C to 125°C. The SN74ABT543A is characterized for operation from –40°C to 85°C.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

EPIC-ΙΙB is a trademark of Texas Instruments Incorporated.

PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Copyright  1997, Texas Instruments Incorporated

1

SN54ABT543A, SN74ABT543A OCTAL REGISTERED TRANSCEIVERS WITH 3-STATE OUTPUTS

SCBS157F – JANUARY 1991 – REVISED MA Y 1997

logic symbol

FUNCTION TABLE

INPUTS

CEAB LEAB OEAB A

H X X X Z X XHX Z

L HLXB L LLL L L L L H H

†

A-to-B data flow is shown; B-to-A flow control is the same except that it uses CEBA

‡

Output level before the indicated steady-state input conditions were established

†

OUTPUT

B

‡

0

, LEBA, and OEBA.

§

A1

A2 A3 A4

A5 A6

A7 A8

2 23 1 13 11 14

3

4 5 6

7 8

9 10

1EN3 G1 1C5 2EN4 G2 2C6

3

6D

1

5D

1

4

22

21 20

19 18

17 16 15

B1

B2 B3

B4 B5

B6 B7 B8

OEBA CEBA

LEBA

OEAB CEAB

LEAB

§

This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.

Pin numbers shown are for the DB, DW, JT, NT, PW, and W packages.

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

logic diagram (positive logic)

SN54ABT543A, SN74ABT543A

OCTAL REGISTERED TRANSCEIVERS

WITH 3-STATE OUTPUTS

SCBS157F – JANUARY 1991 – REVISED MA Y 1997

A1

2

23

1

13

11

14

3

C1 1D

To Seven Other Channels

OEBA

CEBA

LEBA

OEAB

CEAB

LEAB

Pin numbers shown are for the DB, DW, JT, NT, PW, and W packages.

C1 1D

22

B1

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

Supply voltage range, VCC –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage range, VI (except I/O ports) (see Note 1) –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Voltage range applied to any output in the high or power-off state, V

Current into any output in the low state, IO: SN54ABT543A 96 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SN74ABT543A 128 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input clamp current, I Output clamp current, I Package thermal impedance, θ

(V

< 0) –18 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

IK

I

(V

< 0) –50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OK

O

(see Note 2): DB package 104°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

JA

DW package 81°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

NT package 67°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PW package 120°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, T

†

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.

2. The package thermal impedance is calculated in accordance with EIA/JEDEC Std JESD51, except for through-hole packages, which use a trace length of zero.

–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

stg

–0.5 V to 5.5 V. . . . . . . . . . . . . . . . . . .

O

†

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

3

SN54ABT543A, SN74ABT543A

UNIT

PARAMETER

TEST CONDITIONS

UNIT

V

VOLV

4.5 V

V

I

V

GND

A

V

CC

OCTAL REGISTERED TRANSCEIVERS WITH 3-STATE OUTPUTS

SCBS157F – JANUARY 1991 – REVISED MA Y 1997

recommended operating conditions (see Note 3)

SN54ABT543A SN74ABT543A

MIN MAX MIN MAX

V V V V I

OH

I

OL

∆t/∆v Input transition rise or fall rate Outputs enabled 5 5 ns/V T

NOTE 3: Unused pins (input or I/O) must be held high or low to prevent them from floating.

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

V

I

OZH

I

OZL

I

off

I

CEX

I

O

I

CC

∆I C

C

* On products compliant to MIL-PRF-38535, this parameter does not apply. †

All typical values are at VCC = 5 V.

‡

The parameters I

§

This data sheet limit may vary among suppliers.

¶

Not more than one output should be tested at a time, and the duration of the test should not exceed one second.

#

This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.

Supply voltage 4.5 5.5 4.5 5.5 V

CC

High-level input voltage 2 2 V

IH

Low-level input voltage 0.8 0.8 V

IL

Input voltage 0 V

I

High-level output current –24 –32 mA Low-level output current 48 64 mA

Operating free-air temperature –55 125 –40 85 °C

A

TA = 25°C SN54ABT543A SN74ABT543A

MIN TYP†MAX MIN MAX MIN MAX

IK

OH

hys

Control inputs A or B ports

‡

¶

A or B ports

#

CC

Control inputs VI = 2.5 V or 0.5 V 4 pF

i

A or B ports VO = 2.5 V or 0.5 V 7 pF

io

OZH

VCC = 4.5 V, II = –18 mA –1.2 –1.2 –1.2 V VCC = 4.5 V, IOH = –3 mA 2.5 2.5 2.5 VCC = 5 V, IOH = –3 mA 3 3 3

= 4.5

CC

=

CC

= 5.5 V,

CC

VCC = 5.5 V, VO = 2.7 V 10 VCC = 5.5 V, VO = 0.5 V –10 VCC = 0, VI or VO ≤ 4.5 V ±100 ±100 µA VCC = 5.5 V,

VO = 5.5 V VCC = 5.5 V, VO = 2.5 V –50* –100 –180* –50 –200 –50 –180 mA

=

= 5.5 V, IO = 0, VI = VCC or GND

VCC = 5.5 V, One input at 3.4 V, Other inputs at VCC or GND

and I

include the input leakage current.

OZL

IOH = –24 mA 2 2 IOH = –32 mA 2* 2 IOL = 48 mA 0.55 0.55 IOL = 64 mA 0.55* 0.55

100 mV

=

or

I

CC

Outputs high 50 50 50 µA

Outputs high 1 250* 350 250 µA Outputs low 24 30* 34 30 mA Outputs disabled 0.5 250* 350 250 µA

±1 ±1 ±1

±100 ±100 ±100

§

1.5 1.5 1.5 mA

10

–10

CC

§

0 V

10

–10

CC

V

µ

§

µA

§

µA

4

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Data bef

LEAB

LEBA↑

tsuSetup time

ns

Data bef

CEAB

CEBA↑

thHold time

ns

Data bef

LEAB

LEBA↑

tsuSetup time

ns

Data bef

CEAB

CEBA↑

thHold time

ns

SN54ABT543A, SN74ABT543A

OCTAL REGISTERED TRANSCEIVERS

WITH 3-STATE OUTPUTS

SCBS157F – JANUARY 1991 – REVISED MA Y 1997

timing requirements over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 1)

SN54ABT543A

VCC = 5 V,

TA = 25°C MIN MAX

t

w

Pulse duration, LEAB or LEBA low 3.5 3.5 ns

ore

p

ore

Data after LEAB or LEBA↑ 1 1 Data after CEAB or CEBA↑ 1 1

or

High 2.5 2.5 Low 3 3 High 2.5 2.5 Low 3 3

MIN MAX

timing requirements over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 1)

SN74ABT543A

VCC = 5 V,

TA = 25°C MIN MAX

t

w

Pulse duration, LEAB or LEBA low 3.5 3.5 ns

ore

p

ore

Data after LEAB or LEBA↑ 0.5 0.5 Data after CEAB or CEBA↑ 0.5 0.5

or

High 3.5 3.5 Low 3 3 High 3.5 3.5 Low 3 3

MIN MAX

UNIT

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

5

SN54ABT543A, SN74ABT543A

A or B

B or A

ns

LEBA

LEAB

A or B

ns

OEBA

OEAB

A or B

ns

OEBA

OEAB

A or B

ns

CEBA

CEAB

A or B

ns

CEBA or CEAB

A or B

ns

A or B

B or A

ns

LEBA

LEAB

A or B

ns

OEBA

OEAB

A or B

ns

OEBA

OEAB

A or B

ns

CEBA

CEAB

A or B

ns

CEBA or CEAB

A or B

ns

OCTAL REGISTERED TRANSCEIVERS WITH 3-STATE OUTPUTS

SCBS157F – JANUARY 1991 – REVISED MA Y 1997

switching characteristics over recommended ranges of supply voltage and operating free-air temperature, C

PARAMETER

t

PLH

t

PHL

t

PLH

t

PHL

t

PZH

t

PZL

t

PHZ

t

PLZ

t

PZH

t

PZL

t

PHZ

t

†

This data sheet limit may vary among suppliers.

PLZ

= 50 pF (unless otherwise noted) (see Figure 1)

L

FROM

(INPUT)

or

TO

(OUTPUT)

SN54ABT543A

VCC = 5 V,

TA = 25°C

MIN TYP MAX

†

1.6

2.5

3.2†

2.5

4.4 4.4 1.6

1.6 4.4 5.1 1.6 6.2 †

4.1 5.1 1.6

1.6 4.6 5.4 1.6 6.4

1.4 3.9 4.1 1.4 5.1 2 5 4.9 2 5.8

†

5.9 5.8 2.5

†

5.5 6.1 2.5

1.4 3.9 4.7 1.4 5.6 2 5 5.7 2 6.2

5.9 6.5

†

5.5 6.7 2.5

MIN MAX

†

† †

3.2† †

UNIT

5.5

6.6

6.9

7.6

7.3

7.8

switching characteristics over recommended ranges of supply voltage and operating free-air temperature, C

PARAMETER

t

PLH

t

PHL

t

PLH

t

PHL

t

PZH

t

PZL

t

PHZ

t

PLZ

t

PZH

t

PZL

t

PHZ

t

†

This data sheet limit may vary among suppliers.

PLZ

= 50 pF (unless otherwise noted) (see Figure 1)

L

FROM

(INPUT)

or

TO

(OUTPUT)

SN74ABT543A

VCC = 5 V,

TA = 25°C

MIN TYP MAX

†

1.8

1.5

2.5

2.9†

2.4

4.4 5.9 1.8

1.9 4.4 5.9 1.9 6.9 †

4.1 5.6 1.5

2.1 4.6 6.1 2.1 7.1

1.4 3.9 5.4 1.4 6.4

2.5 5 6.5 2.5 7.5 †

5.9 7.4 2.5

†

5.5 7 2.5

1.4 3.9 5.4 1.4 6.4

2.5 5 6.5 2.5 7.5

5.9 7.4

†

5.5 7 2.4

MIN MAX

†

† †

2.9† †

UNIT

6.9

6.6

8.4 8

6

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