National Semiconductor MN54ABT646-X Technical data

MICROCIRCUIT DATA SHEET

MN54ABT646-X REV 0B0

OCTAL TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS

General Description

The ABT646 consists of bus tranceiver circuits wit TRI-STATE, D-type flip-flops, and
control circuitry arranged for multiplexed transmission of data directly from the input
bus or from the internal registers. Data on the A or B bus will be clocked into the
registers as the appropriate clock pin goes to a high logic level. Control OE and
direction pins are provided to control the transceiver function. In the transceiver mode,
data present at the high impedance port may be stored in either the A or the B register or
in both. The select controls can mutiplex stored and real-time (transparent mode) data.
The direction control determines which bus will receive data when the enable control OE is
Active LOW. In the isolation mode (control OE HIGH), A data may be stored in the B
register and/or B data may be stored in the A register.

Original Creation Date: 08/25/95

Last Update Date: 10/05/98

Last Major Revision Date: 03/19/97

Industry Part Number

54ABT646

Prime Die

NB646

Controlling Document

See Features Page

Processing

MIL-STD-883, Method 5004

Quality Conformance Inspection

MIL-STD-883, Method 5005

NS Part Numbers

54ABT646E-QML *
54ABT646J-QML **
54ABT646W-QML ***

Subgrp Description Temp ( C)

1 Static tests at +25
2 Static tests at +125
3 Static tests at -55
4 Dynamic tests at +25
5 Dynamic tests at +125
6 Dynamic tests at -55
7 Functional tests at +25
8A Functional tests at +125
8B Functional tests at -55
9 Switching tests at +25
10 Switching tests at +125
11 Switching tests at -55

o

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MN54ABT646-X REV 0B0

MICROCIRCUIT DATA SHEET

Features

- Independent registers for A and B buses.

- Multiplexed real-time and stored data.

- A and B output sink capability of 48 mA, source capability of 24 mA

- Guaranteed latchup protection

- High impedance glitch free bus loading during entire power up and power down cycle.

- Non-Destructive hot insertion capability.

- SMD : 5962-9457701Q3A*, QLA**, QKA***

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MN54ABT646-X REV 0B0

(Absolute Maximum Ratings)

(Note 1)

Vcc Pin Potential to Ground Potential

Input Voltage

(Note 2)

Input Current

(Note 2)

Voltage Applied To Any Output

Current Applied To Output

Junction Temperature (Tj)

Thermal Resistance

Storage Temperature

Lead Temperature

ESD Classification

Maximum Power Dissipation

MICROCIRCUIT DATA SHEET

-0.5V to +7.0V

-0.5V to +7.0V

-30mA to +5.0mA

-0.5V to 5.5VIn the Disabled or Power-Off State

-0.5V to VccIn The High State

96mAIn The Low State (Max)

+175CCeramic

See Mil-Std 1835Junction-To-Case (Theta JC)

-65C to +150C

+300C(Soldering, 10 seconds)

Class 3

500 mW

Note 1: Absolute maximum ratings are values beyond which the device may be damaged or have

Note 2: Either voltage limit or current limit is sufficient to protect inputs.

its useful life impaired. Functional operation under these conditions is not
implied.

Recommended Operating Conditions

Supply Voltage (Vcc)

Operating Temperature

Minimum Input Edge Rate (dV/dt)

Maximum Output Current

4.5V to 5.5V

-55C to +125C

50 mV/nsData Input
20 mV/nsEnable Input
100 mV/nsClock Input

-24 mAHigh Level (Ioh)
48 mALow Level (Iol)

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MN54ABT646-X REV 0B0

MICROCIRCUIT DATA SHEET

Electrical Characteristics

DC PARAMETERS

(The following conditions apply to all the following parameters, unless otherwise specified.)
DC: 4.5V to 5.5V Temp Range: -55C to 125C

SYMBOL PARAMETER CONDITIONS NOTES

ICCH Supply Current VCC=5.5V, VINH=5.5V, VINL=0.0V 1, 4 VCC 250.0 uA 1, 2,

ICCL Supply Current VCC=5.5V, VINH=5.5V, VINL=0.0V 1, 4 VCC 30.0 mA 1, 2,

ICCZ Supply Current VCC=5.5V, VINH=5.5V, VINL=0.0V 1, 4 VCC 250.0 uA 1, 2,

ICCT Supply Current

per Input

IIH High Level Input

Current

IIL Low Level Input

Current

IOZH Maximum TRI-STATE

Leakage Current
HIGH

IOZL Maximum TRI-STATE

Leakage Current
LOW

ICEX Output High

Leakage Current

IOS Output Short

Circuit Current

IOS1 Output Short

Circuit Current

IBVI Input High

Current Breakdown
Test

IZZ Bus Drainage Test VCC=0.0V, VOUT=4.5V, VINL=0.0V 1, 4 IN/OUT -100 100 uA 1, 2,

VOL Low Level Output

Voltage

VOH High Level Output

Voltage

VCC=5.5V, OE=0.0V Input under
test=3.4V Other inputs=5.5V or 0.0V

VCC=5.5V, OE=3.4V Other inputs=5.5V or

0.0V
VCC=5.5V, VINH=5.5V 1, 4 IN 2.0 uA 1, 2,

VCC=5.5V, VINL=0.0V 1, 4 IN -2.0 uA 1, 2,

VCC=5.5V, VOUT=2.7V VINL=0.0V, VIH
(OE)=2.0V

VCC=5.5V, VOUT=0.5V VINH=5.5V, VIH
(OE)=2.0V

VCC=5.5V, VOUT=5.5V VINH=5.5V 1, 4 OUT 50.0 uA 1, 2,

VCC=5.5V, VOUT=0.0V VINH=5.5V 1,

VCC=5.5V, VOUT=2.5V VINH=5.5V 1,

VCC=5.5V, VINH=7.0V 1, 4 IN 7.0 uA 1, 2,

VCC=4.5V, IOL=48.0mA, VINH=4.5V,
VINL=0.0V, VIH=2.0V, VIL=0.8V

VCC=4.5V, IOH=-24.0mA, VINH=4.5V,
VINL=0.0V, VIH=2.0V, VIL=0.8V

VCC=4.5V, IOH=-3mA, VINH=4.5V,
VINL=0.0V, VIH=2.0V, VIL=0.8V

VCC=5.0V, IOH=-3mA, VINH=5.0V,
VINL=0.0V, VIH=2.0V, VIL=0.8V

1, 4 VCC 2.5 mA 1, 2,

1, 4 VCC 2.5 mA 1, 2,

1, 4 OUT 10.0 uA 1, 2,

1, 4 OUT -10.0 uA 1, 2,

4,
10

4,
10

1, 4 OUT 0.55 V 1, 2,

1, 4 OUT 2.0 V 1, 2,

1, 4 OUT 2.5 V 1, 2,

1, 4 OUT 3.0 V 1, 2,

PIN­NAME

OUT -100 -275 mA 1, 2,

OUT -50 -180 mA 1, 2,

MIN MAX UNIT

SUB-

GROUPS

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

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MN54ABT646-X REV 0B0

MICROCIRCUIT DATA SHEET

Electrical Characteristics

DC PARAMETERS(Continued)

(The following conditions apply to all the following parameters, unless otherwise specified.)
DC: 4.5V to 5.5V Temp Range: -55C to 125C

SYMBOL PARAMETER CONDITIONS NOTES

VID Input Leakage

Test

VCD Input Clamp Diode

Voltage

VOLP Low Level Ground

Bounce

VOLV Low Level Ground

Bounce

VOHP High Level VCC

Bounce

VOHV High Level VCC

Bounce
CIN Input Capacitance VCC=0.0V 7 IN 14 pF 4
C I/O Input/Output

Capacitance

VCC=0.0V, IID=1.9uA, VINL=0.0V 1, 4 IN 4.75 V 1, 2,

VCC=4.5V, IKL=-18mA, VINH=4.5V,
VINL=0.0V

VCC=5.0V, LOAD : 50pF / 500 OHMS 7, 8 OUT 1.2 V 4

VCC=5.0V, LOAD : 50pF / 500 OHMS 7, 8 OUT -1.80 V 4

VCC=5.0V, LOAD : 50pF / 500 OHMS 7, 8 OUT 1.5 V 4

VCC=5.0V, LOAD : 50pF / 500 OHMS 7, 8 OUT -1.10 V 4

VCC=5.0V 7 OUT 19.5 pF 4

1, 4 IN -1.2 V 1, 2,

PIN­NAME

MIN MAX UNIT

AC PARAMETERS

(The following conditions apply to all the following parameters, unless otherwise specified.)
AC: CL=50pF RL=500 OHMS TRISE/TFALL = 3.0nS

tpLH1 Propagation Delay VCC=5.0V @25C, VCC=4.5V & 5.5V

@-55C/125C

tpHL1 Propagation Delay VCC=5.0V @25C, VCC=4.5V & 5.5V

@-55C/125C

tpLH2 Propagation Delay VCC=5.0V @25C, VCC=4.5V & 5.5V

@-55C/125C

tpHL2 Propagation Delay VCC=5.0V @25C, VCC=4.5V & 5.5V

@-55C/125C

tpLH3 Propagation Delay VCC=5.0V @25C, VCC=4.5V & 5.5V

@-55C/125C

2, 5 Clock

to Bus

2, 5 Clock

to Bus

2, 5 Clock

to Bus

2, 5 Clock

to Bus

2, 5 Bus to

Bus

2, 5 Bus to

Bus

2, 5 Bus to

Bus

2, 5 Bus to

Bus

2, 5 SAB/BA

to
Bn/An

2, 5 SAB/BA

to
Bn/An

1.7 6.8 ns 9

2.2 8.8 ns 10, 11

1.7 7.4 ns 9

1.7 8.8 ns 10, 11

1.5 5.9 ns 9

1.5 7.9 ns 10, 11

1.5 5.9 ns 9

1.5 7.9 ns 10, 11

1.5 6.1 ns 9

1.2 8.1 ns 10, 11

SUB-

GROUPS

3

3

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MN54ABT646-X REV 0B0

MICROCIRCUIT DATA SHEET

Electrical Characteristics

AC PARAMETERS(Continued)

(The following conditions apply to all the following parameters, unless otherwise specified.)
AC: CL=50pF RL=500 OHMS TRISE/TFALL = 3.0nS

SYMBOL PARAMETER CONDITIONS NOTES

tpHL3 Propagation Delay VCC=5.0V @25C, VCC=4.5V & 5.5V

tpZL1 Output Enable

Time

tpZL2 Output Enable

Time

tpZH1 Output Enable

Time

tpZH2 Output Enable

Time

tpHZ1 Output Disable

Time

tpHZ2 Output Disable

Time

tpLZ1 Output Disable

Time

tpLZ2 Output Disable

Time

@-55C/125C

VCC=5.0V @25C, VCC=4.5V & 5.5V
@-55C/125C

VCC=5.0V @25C, VCC=4.5V & 5.5V
@-55C/125C

VCC=5.0V @25C, VCC=4.5V & 5.5V
@-55C/125C

VCC=5.0V @25C, VCC=4.5V & 5.5V
@-55C/125C

VCC=5.0V @25C, VCC=4.5V & 5.5V
@-55C/125C

VCC=5.0V @25C, VCC=4.5V & 5.5V
@-55C/125C

VCC=5.0V @25C, VCC=4.5V & 5.5V
@-55C/125C

VCC=5.0V @25C, VCC=4.5V & 5.5V
@-55C/125C

PIN­NAME

2, 5 SAB/BA

to
Bn/An

2, 5 SAB/BA

to
Bn/An

2, 5 OE to

An/Bn

2, 5 OE to

An/Bn

2, 5 DIR to

An/Bn

2, 5 DIR to

An/Bn

2, 5 OE to

An/Bn

2, 5 OE to

An/Bn

2, 5 DIR to

An/Bn

2, 5 DIR to

An/Bn

2, 5 OE to

An/Bn

2, 5 OE to

An/Bn

2, 5 DIR to

An/Bn

2, 5 DIR to

An/Bn

2, 5 OE to

An/Bn

2, 5 OE to

An/Bn

2, 5 DIR to

An/Bn

2, 5 DIR to

An/Bn

MIN MAX UNIT

1.5 6.9 ns 9

1.5 8.9 ns 10, 11

2.1 7.4 ns 9

1.9 8.8 ns 10, 11

2.2 9.0 ns 9

2.2 9.5 ns 10, 11

1.0 6.0 ns 9

1.0 7.3 ns 10, 11

1.2 6.0 ns 9

1.0 7.7 ns 10, 11

1.5 7.3 ns 9

1.5 9.3 ns 10, 11

1.5 6.7 ns 9

1.5 8.7 ns 10, 11

1.5 7.0 ns 9

1.5 9.3 ns 10, 11

1.5 7.2 ns 9

1.5 9.2 ns 10, 11

SUB-

GROUPS

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MN54ABT646-X REV 0B0

MICROCIRCUIT DATA SHEET

Electrical Characteristics

AC PARAMETERS(Continued)

(The following conditions apply to all the following parameters, unless otherwise specified.)
AC: CL=50pF RL=500 OHMS TRISE/TFALL = 3.0nS

SYMBOL PARAMETER CONDITIONS NOTES

ts (H/L) Setup Time HIGH

or LOW

th (H/L) Hold Time HIGH or

LOW

tw (L) Pulse Width VCC=5.0V @25C, VCC=4.5V & 5.5V

Fmax Max Clock

Frequency

Note 1: Screen tested 100% on each device at -55C, +25C & +125C Temp., Subgroups 1,2,3,7 & 8.
Note 2: Screen tested 100% on each device at -55C, +25C, and +125C temp., subgroups A9, A10,

and A11.
Note 3: Screen tested 100% on each device at +25C temp. only, subgroup A9.
Note 4: Sample tested (Method 5005, Table 1) on each mfg. lot at +25C, +125C, & -55C temp.

subgroups A1, 2, 3, 7 & 8.
Note 5: Sample tested (Method 5005, Table 1) on each mfg. Lot at +25C, +125C & -55C temp.,

subgroups A9, 10 & 11.
Note 6: Sample tested (Method 5005, Table 1) on each mfg. Lot at 25C temp only, subgroup A9.
Note 7: Not tested (Guaranteed by Design Characterization Data).
Note 8: Max number of outputs defines as (N). N-1 data inputs are driven 0V to 3V. one

output @Vol or @Voh.
Note 9: Max number of data inputs (N) switching. (N-1) inputs switching 0V to 3V.

Input-under-test switching : 3V to threshold (Vild), 0V to threshold (Vihd), Freq= 1

MHZ
Note 10: Maximum test duration not to exceed one second, not more than one output shorted at

one time.

VCC=5.0V @25C, VCC=4.5V & 5.5V
@-55C/125C

VCC=5.0V @25C, VCC=4.5V & 5.5V
@-55C/125C

@-55C/125C
VCC=5.0V @25C, VCC=4.5V & 5.5V

@-55C/125C

PIN­NAME

7 BUS to

Clock

7 BUS to

Clock

7 BUS to

Clock

7 BUS to

Clock

7 CPAB/CPBA4.0 ns 9, 10,

7 CPAB/CP

BA

MIN MAX UNIT

3.0 ns 9

3.5 ns 10, 11

1.0 ns 9

1.0 ns 10, 11

125 MHz 9, 10,

SUB-

GROUPS

11

11

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MN54ABT646-X REV 0B0

Graphics and Diagrams

GRAPHICS# DESCRIPTION

E28ARD LCC (E), TYPE C, 28 TERMINAL(P/P DWG)
J24FRG CERDIP (J), 24LD, .300 CENTERS (P/P DWG)
W24CRE CERPACK (W), 24 LEAD (P/P DWG)

See attached graphics following this page.

MICROCIRCUIT DATA SHEET

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MN54ABT646-X REV 0B0

MICROCIRCUIT DATA SHEET

Revision History

Rev ECN # Rel Date Originator Changes

0B0 M0002947 10/05/98 Bill Petcher Changed MDS MN54ABT646-X REV 0A0 to MN54ABT646-X REV

0B0

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