Datasheet 74abt2952 DATASHEETS (Philips)

INTEGRATED CIRCUITS

74ABT2952

Octal registered transceiver (3-State)

Product specification
Supersedes data of 1995 Jun 15

IC23 Data Handbook

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1998 Feb 11

Philips Semiconductors Product specification

74ABT2952Octal registered transceiver (3-State)

FEA TURES

•8-bit registered transceiver

•Independent registers for A and B buses

•Output capability: +64mA/–32mA

•Latch-up protection exceeds 500mA per JEDEC Std 17

•ESD protection exceeds 2000V per MIL STD 883 Method 3015

and 200V per Machine Model

•Power-up 3-State

•Power-up reset

DESCRIPTION

The 74ABT2952 high-performance BiCMOS device combines low
static and dynamic power dissipation with high speed and high
output drive.

The 74ABT2952 device is an 8-bit registered transceiver. Two 8-bit
back-to-back registers store data flowing in both directions between
two bidirectional buses. Data applied to the inputs is entered and
stored on the rising edge of the Clock (CPXX) provided that the
Clock Enable (CEXX
output buffers, but is only accessible when the Output Enable
(OEXX) is Low. Data flow from A inputs to B outputs is the same as
for B inputs to A outputs.

) is Low. The data is then present at the 3-State

•Live insertion/extraction permitted

QUICK REFERENCE DATA

SYMBOL PARAMETER

t

PLH

t

PHL

C
C
I

CCZ

IN

I/O

Propagation delay
CPBA to An or

CL = 50pF; VCC = 5V 5.7 ns

CPAB to Bn
Input capacitance VI = 0V or V
I/O capacitance Outputs disabled; VO = 0V or V
Total supply current Outputs disabled; VCC =5.5V 110 µA

ORDERING INFORMATION

PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER

24-Pin Plastic DIP –40°C to +85°C 74ABT2952 N 74ABT2952 N SOT222-1
24-Pin plastic SO –40°C to +85°C 74ABT2952 D 74ABT2952 D SOT137-1
24-Pin Plastic SSOP Type II –40°C to +85°C 74ABT2952 DB 74ABT2952 DB SOT340-1
24-Pin Plastic TSSOP Type I –40°C to +85°C 74ABT2952 PW 7ABT2952PW DH SOT355-1

CONDITIONS

T

= 25°C; GND = 0V

amb

CC

CC

TYPICAL UNIT

4 pF
7 pF

PIN CONFIGURATION

V

1

B7

2

B6

3

B5

4

B4

5

B3

6

B2

7

B1

8

B0

9

OEAB

10 15

CPAB

11 14CEAB
12 13GND

1998 Feb 1 1 853-1554 18949

24
23
22
21
20
19
18
17
16

SA00114

CC

A7
A6
A5
A4
A3
A2
A1
A0
OEBA
CPBA
CEBA

PIN DESCRIPTION

PIN

NUMBER

10, 14

11, 13

16, 17, 18,
19, 20, 21,

22, 23

1, 2, 3, 4, 5,

6, 7, 8

9, 15

12 GND Ground (0V)
24 V

2

SYMBOL NAME AND FUNCTION

CPAB /

CPBA

CEAB /

CEBA

Clock input A to B / Clock input B to A
Clock enable input A to B / Clock

enable input B to A

A0 – A7 Data inputs/outputs (A side)

B0 – B7 Data outputs/outputs (B side)

OEAB /

OEBA

Output enable inputs

Positive supply voltage

CC

Philips Semiconductors Product specification

74ABT2952Octal registered transceiver (3-State)

LOGIC SYMBOL

16 17 18 19 20 21 22 23

A0 A1 A2 A3 A4 A5 A6 A7

10

CPAB

11

CEAB

14

CPBA

13

CEBA

B0 B1 B2 B3 B4 B5 B6 B7

87654321

LOGIC SYMBOL (IEEE/IEC)

11
13
15

9
10
14

EN1
EN2
EN3

EN4

C5
C6

OEBA
OEAB

SA00115

FUNCTION TABLE for Register An or Bn

INPUTS

An or Bn CPXX CEXX

X X H NC Hold data
L

15

9

H

H = High voltage level

↑
↑

L =Low voltage level
↑ =Low–to–High transition
X = Don’t care
XX= AB or BA
NC=No change

INTERNAL OPERATING

Q MODE

L
L

L

H

Load data

FUNCTION TABLE for Output Enable

INPUTS

OEXX

H X Z Disable outputs
L

L

H = High voltage level
L =Low voltage level
X = Don’t care
XX= AB or BA
Z =High impedance “off” state

INTERNAL An or Bn OPERATING

Q OUTPUTS MODE

L

H

L

H

Enable outputs

16
17
18
19
20
21
22
23

1, 4, 52, 3, 6

ABSOLUTE MAXIMUM RATINGS

SYMBOL

V

CC

I

IK

V

I

I

OK

V

OUT

I

OUT

T

stg

DC supply voltage –0.5 to +7.0 V
DC input diode current VI < 0 –18 mA
DC input voltage
DC output diode current VO < 0 –50 mA
DC output voltage
DC output current output in Low state 128 mA
Storage temperature range –65 to 150 °C

PARAMETER CONDITIONS RATING UNIT

3

3

1, 2

8
7
6
5
4
3
2
1

SA00116

–1.2 to +7.0 V

output in Off or High state –0.5 to +5.5 V

NOTES:

1. Stresses beyond those listed 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 .

2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C.

3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.

1998 Feb 1 1

3

Philips Semiconductors Product specification

SYMBOL

PARAMETER

UNIT

74ABT2952Octal registered transceiver (3-State)

LOGIC DIAGRAM

11

CEAB

10

CPAB

9

OEAB

DETAIL A

CE

CP

Q

CE

Q

D

CP

8

B0

16

A0

D

17

A1

18

A2

19

A3

CEBA

CPBA

OEBA

20

A4

21

A5

22

A6

23

A7

13

14

15

DETAIL A X 7

RECOMMENDED OPERATING CONDITIONS

LIMITS

Min Max

V

CC

V
V
V
I

OH

I

OL

∆t/∆v Input transition rise or fall rate 0 10 ns/V
T

amb

DC supply voltage 4.5 5.5 V
Input voltage 0 V

I

High-level input voltage 2.0 V

IH

Low-level Input voltage 0.8 V

IL

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

Operating free-air temperature range –40 +85 °C

CC

7

B1

6

B2

5

B3

4

B4

3

B5

2

B6

1

B7

SA00117

V

1998 Feb 1 1

4

Philips Semiconductors Product specification

74ABT2952Octal registered transceiver (3-State)

DC ELECTRICAL CHARACTERISTICS

LIMITS

T

= –40°C

SYMBOL PARAMETER TEST CONDITIONS T

amb

= +25°C

Min Typ Max Min Max

V

V

V

V

RST

Input clamp voltage VCC = 4.5V; IIK = –18mA –0.9 –1.2 –1.2 V

IK

VCC = 4.5V; IOH = –3mA; VI = VIL or V

High-level output voltage VCC = 5.0V; IOH = –3mA; VI = VIL or V

OH

VCC = 4.5V; IOH = –32mA; VI = VIL or V

Low-level output voltage VCC = 4.5V; IOL = 64mA; VI = VIL or V

OL

Power-up output low

3

voltage

I

Input leakage Control pins VCC = 5.5V; VI = GND or 5.5V ±0.01 ±1.0 ±1.0 µA

I

VCC = 5.5V; IO = 1mA; VI = GND or V

IH

IH

IH

IH

CC

2.5 3.5 2.5 V

3.0 4.0 3.0 V

2.0 2.6 2.0 V

0.42 0.55 0.55 V

0.13 0.55 0.55 V

current Data pins VCC = 5.5V; VI = GND or 5.5V 5 100 100 µA

I

OFF

IPU/I

I

OZH

I

OZL

I

CEX

I

CCH

I

CCL

I

CCZ

∆I

Power-off leakage current VCC = 0.0V; VO = 4.5V; VI = 0.0V or 5.5V ±5.0 ±100 ±100 µA
Power-up/down 3-State

PD

output current

4

3-State output High current VCC = 5.5V; VO = 2.7V; VI = VIL or V
3-State output Low current VCC = 5.5V; VO = 0.5V; VI = VIL or V
Output High leakage current VCC = 5.5V; VO = 5.5V; VI = GND or V

I

O

Output current

1

Quiescent supply current VCC = 5.5V; Outputs Low, VI = GND or V

Additional supply current per

CC

input pin

2

VCC = 2.1V; VO = 0.5V; VI = GND or VCC;
VOE = Don’t care

IH

IH

CC

±5.0 ±50 ±50 µA

5.0 50 50 µA

–5.0 –50 –50 µA

5.0 50 50 µA
VCC = 5.5V; VO = 2.5V –50 –80 –180 –50 –180 mA
VCC = 5.5V; Outputs High, VI = GND or V

VCC = 5.5V; Outputs 3-State;
VI = GND or V

CC

VCC = 5.5V; one input at 3.4V,
other inputs at VCC or GND

CC

CC

110 250 250 µA

20 30 30 mA

110 250 250 µA

0.3 1.5 1.5 mA

NOTES:

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

2. This is the increase in supply current for each input at 3.4V .

3. For valid test results, data must not be loaded into the flip-flops (or latches) after applying the power.

4. This parameter is valid for any V
transition time of up to 100µsec is permitted.

between 0V and 2.1V , with a transition time of up to 10msec. From VCC = 2.1V to VCC = 5V ± 10% a

CC

amb

to +85°C

UNIT

AC CHARACTERISTICS

GND = 0V; tR = tF = 2.5ns; CL = 50pF, RL = 500Ω

SYMBOL PARAMETER WAVEFORM

f

MAX

t

PLH

t

PHL

t

PZH

t

PZL

t

PHZ

t

PLZ

1998 Feb 1 1

Maximum clock frequency 1 150 250 150 MHz
Propagation delay

CPBA to An, CPAB to Bn
Output enable time

OEBA to An, OEAB to Bn
Output disable time

OEBA to An, OEAB to Bn

1

3
4

3
4

LIMITS

T

amb

V

CC

= +25°C

= +5.0V

T

= –40°C to +85°C

amb

V

= +5.0V ±0.5V

CC

Min Typ Max Min Max

2.0

2.5

1.0

2.2

2.0

1.5

3.2

3.8

3.2

4.4

3.6

2.8

6.6

7.2

4.8

6.2

7.6

7.1

2.0

2.5

1.0

2.2

2.0

1.5

5

7.6

8.2

5.8

7.5

8.1

7.6

UNIT

ns

ns

ns

Philips Semiconductors Product specification

74ABT2952Octal registered transceiver (3-State)

AC SETUP REQUIREMENTS

LIMITS

T

SYMBOL PARAMETER WAVEFORM

tS(H)

ts(L)

th(H)

t

(L)

h

ts(H)

ts(L)

th(H)

th(L)

tw(H)

tw(L)

Setup time
An to CPAB or Bn to CPBA

Hold time
An to CPAB or Bn to CPBA

Setup time
CEAB to CPAB, CEBA to CPBA

Hold time
CEAB to CPAB, CEBA to CPBA

CPAB or CPBA pulse width,
High or Low

2

2

2

2

1

= +25°C

amb

V

= +5.0V

CC

Min Typ Min

4.5

3.5

0.0

0.0

4.0

3.0

0.0

0.0

3.0

3.5

2.2

1.6

–0.8
–1.4

0.8

0.8

–0.7
–0.7

0.8

0.9

T

= –40°C to +85°C

amb

V

= +5.0V ±0.5V

CC

4.5

3.5

0.0

0.0

4.0

3.0

0.0

0.0

3.0

3.5

UNIT

ns

ns

ns

ns

ns

AC WAVEFORMS

VM = 1.5V, VIN = GND to 3.0V

1/f

MAX

CPBA or

CPAB

An or Bn

Waveform 1. Propagation Delay, Clock Input to Output, Clock

Pulse Width, and Maximum Clock Frequency

An, Bn
CEAB,

CEBA

t

CPAB,

CPBA

Waveform 2. Data Setup and Hold Times

V

M

tw(H) tw(L)

t

PHL

V

M

(H) th(H) ts(L) th(L)

s

V

M

V

M

V

M

V

M

V

t

M

PLH

V

M

SA00087

V

V

M

M

V

M

SA00118

OEAB,
OEBA

An, Bn

V

M

t

PZH

V

M

t

PHZ

V

OH

V

M

VOH –0.3V

0V

SA00119

Waveform 3. 3-State Output Enable Time to High Level and

Output Disable Time from High Level

OEAB,
OEBA

An, Bn

V

M

t

PZL

V

M

t

PLZ

V

M

VOL +0.3V

V

OL

SA00120

Waveform 4. 3–State Output Enable Time to Low Level and

Output Disable Time from Low Level

TEST CIRCUIT AND WAVEFORMS

1998 Feb 1 1

6

Philips Semiconductors Product specification

74ABT2952Octal registered transceiver (3-State)

From Output
Under Test

C

= 50 pF

L

t

DEFINITIONS

= Load capacitance includes jig and probe capacitance;

C

L

see AC CHARACTERISTICS for value.

500 Ω

500 Ω

Load Circuit

TEST S1

t

pd

t

PLZ/tPZL

PHZ/tPZH

S1

open

7 V

open

7 V

Open

GND

SA00012

1998 Feb 1 1

7

Philips Semiconductors Product specification

74ABT2952Octal registered transceiver (3-State)

DIP24: plastic dual in-line package; 24 leads (300 mil) SOT222-1

1998 Feb 1 1

8

Philips Semiconductors Product specification

74ABT2952Octal registered transceiver (3-State)

SO24: plastic small outline package; 24 leads; body width 7.5 mm SOT137-1

1998 Feb 1 1

9

Philips Semiconductors Product specification

74ABT2952Octal registered transceiver (3-State)

SSOP24: plastic shrink small outline package; 24 leads; body width 5.3 mm SOT340-1

1998 Feb 1 1

10

Philips Semiconductors Product specification

74ABT2952Octal registered transceiver (3-State)

TSSOP24: plastic thin shrink small outline package; 24 leads; body width 4.4 mm SOT355-1

1998 Feb 1 1

11

Philips Semiconductors Product specification

74ABT2952Octal registered transceiver (3-State)

Data sheet status

Data sheet
status

Objective
specification

Preliminary
specification

Product
specification

Product
status

Development

Qualification

Production

Definition

This data sheet contains the design target or goal specifications for product development.
Specification may change in any manner without notice.

This data sheet contains preliminary data, and supplementary data will be published at a later date.
Philips Semiconductors reserves the right to make chages at any time without notice in order to
improve design and supply the best possible product.

This data sheet contains final specifications. Philips Semiconductors reserves the right to make
changes at any time without notice in order to improve design and supply the best possible product.

[1]

[1] Please consult the most recently issued datasheet before initiating or completing a design.

Definitions

Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For

detailed information see the relevant data sheet or data handbook.
Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one

or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or
at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended
periods may affect device reliability.

Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips
Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or
modification.

Disclaimers

Life support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products can

reasonably be expected to result in personal injury . Philips Semiconductors customers using or selling these products for use in such applications
do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.

Right to make changes — Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard
cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no
responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless
otherwise specified.

Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone [phone]

 Copyright Philips Electronics North America Corporation 1998

All rights reserved. Printed in U.S.A.

print code Date of release: 05-96
Document order number: 9397-750-03479

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