Page 1
74ABT16952
74ABTH16952
16-bit registered transceiver (3-State)
Product specification
Supersedes data of 1995 Sep 28
IC23 Data Handbook
1998 Feb 25
INTEGRATED CIRCUITS
Page 2
Philips Semiconductors Product specification
74ABT16952
74ABTH16952
16-bit registered transceiver (3-State)
2
1998 Feb 25 853-1814 19018
FEA TURES
•Two 8-bit registered transceivers
•Live insertion/extraction permitted
•Power-up 3-State
•74ABTH16952 incorporates bus-hold data inputs which eliminate
the need for external pull-up resistors to hold unused inputs
•Power-up reset
•Multiple V
CC
and GND pins minimize switching noise
•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
•Bus-hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs
DESCRIPTION
The 74ABT16952 high-performance BiCMOS device combines low
static and dynamic power dissipation with high speed and high
output drive.
The 74ABT16952 is a dual octal registered transceiver. Two 8-bit
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 (nCPXX) provided that the Clock
Enable (nCEXX
) is Low. The data is then present at the 3-State
output buffers, but is only accessible when the Output Enable
(nOEXX) is Low. Data flow from A inputs to B outputs is the same as
for B inputs to A outputs.
Two options are available, 74ABT16952 which does not have the
bus-hold feature and 74ABTH16952 which incorporates the
bus-hold feature.
QUICK REFERENCE DA TA
SYMBOL PARAMETER
CONDITIONS
T
amb
= 25°C; GND = 0V
TYPICAL UNIT
t
PLH
t
PHL
Propagation delay
nCPBA to nAx or
nCPAB to nBx
CL = 50pF; VCC = 5V
2.8
2.3
ns
C
IN
Input capacitance VI = 0V or V
CC
4 pF
C
I/O
I/O capacitance VO = 0V or VCC; 3-State 7 pF
I
CCZ
pp
Outputs disabled; VCC = 5.5V 500 µA
I
CCL
Quiescent su ly current
Outputs LOW; VCC = 5.5V 8 mA
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER
56-Pin Plastic SSOP Type III –40°C to +85°C 74ABT16952 DL BT16952 DL SOT371-1
56-Pin Plastic TSSOP Type II –40°C to +85°C 74ABT16952 DGG BT16952 DGG SOT364-1
56-Pin Plastic SSOP Type III –40°C to +85°C 74ABTH16952 DL BH16952 DL SOT371-1
56-Pin Plastic TSSOP Type II –40°C to +85°C 74ABTH16952 DGG BH16952 DGG SOT364-1
PIN DESCRIPTION
PIN NUMBER SYMBOL NAME AND FUNCTION
2, 55
18, 22
1CPAB / 1CPBA
2CPAB / 2CPBA
Clock input A to B / Clock input B to A
3, 54,
26, 31
1CEAB / 1CEBA
2CEAB / 2CEBA
Clock enable input A to B / Clock enable input B to A
52, 51, 49, 48, 47, 45, 44, 43
42, 41, 40, 38, 37, 36, 34, 33
1A0 – 1A7
2A0 – 2A7
Data inputs/outputs (A side)
1, 56
8, 29
1B0 – 1B7
2B0 – 2B7
Data inputs/outputs (B side)
4, 11, 18, 25, 32, 39, 45, 53
1OEAB / 1OEBA
2OEAB / 2OEBA
Output enable inputs
4, 17, 30, 43 GND Ground (0V)
7, 22, 35, 50 V
CC
Positive supply voltage
Page 3
Philips Semiconductors Product specification
74ABT16952
74ABTH16952
16-bit registered transceiver (3-State)
1998 Feb 25
3
PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
1OEAB
1CPAB
1CEAB
GND
1A0
1A1
1A2
1A3
1A4
GND
1A5
1A6
1A7
2A0
2A2
GND
2A3
V
CC
2A1
2A4
2A5
2A6
V
CC
1OEBA
1CPBA
1CEBA
GND
1B0
1B1
1B2
1B3
1B4
GND
1B5
1B6
1B7
2B0
2B2
GND
2B3
V
CC
2B1
2B4
2B5
2B6
2B7
V
CC
2A7
25
26
27
28
32
31
30
29
GND
2CPAB
2CEAB
GND
2CPBA
2OEBA
2CEBA
2OEAB
SH00070
LOGIC SYMBOL
1A0 1A1 1A2 1A3 1A4 1A5 1A6 1A7
2
3
1CPAB
1CEAB
55
54
1CPBA
1CEBA
568910121314
1B0 1B1 1B2 1B3 1B4 1B5 1B6 1B7
52 51 49 48 47 45 44 43
2A0 2A1 2A2 2A3 2A4 2A5 2A6 2A7
27
26
2CPAB
2CEAB
30
31
2CPBA
2CEBA
15 16 17 19 20 21 23 24
2B0 2B1 2B2 2B3 2B4 2B5 2B6 2B7
42 41 40 38 37 36 34 33
561OEBA
11OEAB
292OEBA
282OEAB
SH00071
Page 4
Philips Semiconductors Product specification
74ABT16952
74ABTH16952
16-bit registered transceiver (3-State)
1998 Feb 25
4
LOGIC SYMBOL (IEEE/IEC)
SH00086
5
6
8
9
10
12
13
14
16
17
19
20
21
23
24
56
1EN3
∇3
5D
1A0
1A1
1A2
1A3
1A4
1A5
1A6
1A7
2A0
2A1
2A2
2A3
2A4
2A5
2A6
2A7
15
52
51
49
48
47
45
44
43
42
41
40
38
37
36
34
33
1B0
1B1
1B2
1B3
1B4
1B5
1B6
1B7
2B0
2B1
2B2
2B3
2B4
2B5
2B6
2B7
6D 4 ∇
∇911D
12D
10 ∇
54
55
1
3
2
29
31
30
28
26
27
1OEBA
1CEBA
1LPBA
1OEAB
1LEAB
1CPAB
2OEBA
2CEBA
2CPBA
2OEAB
2LEAB
2CPAB
G1
1C5
EN4
G2
2C6
EN9
G7
7C11
EN10
G8
8C12
FUNCTION TABLE for Register nAx or nBx
INPUTS INTERNAL OPERATING
nAx or
nBx
nCPXX nCEXX Q MODE
X X H NC Hold data
L
H
↑
↑
L
L
L
H
Load data
H =High voltage level
L =Low voltage level
↑ =Low-to-High transition
X = Don’t care
XX=AB or BA
NC=No change
FUNCTION TABLE for Output Enable
INPUTS INTERNAL nAx or nBx OPERATING
nOEXX Q OUTPUTS MODE
H X Z Disable outputs
L
L
L
H
L
H
Enable outputs
H =High voltage level
L =Low voltage level
X = Don’t care
XX=AB or BA
Z =High impedance ”off” state
Page 5
Philips Semiconductors Product specification
74ABT16952
74ABTH16952
16-bit registered transceiver (3-State)
1998 Feb 25
5
LOGIC DIAGRAM
nCEAB
CE
Q
CP
D
CE
Q
CP
D
DETAIL A
DETAIL A X 7
nCPAB
nOEAB
nA0
nA2
nCPBA
nOEBA
nB0
nA3
nA4
nA5
nA6
nA7
nCEBA
nB1
nB2
nB3
nB4
nB5
nB6
nB7
nA1
SH00072
Page 6
Philips Semiconductors Product specification
74ABT16952
74ABTH16952
16-bit registered transceiver (3-State)
1998 Feb 25
6
ABSOLUTE MAXIMUM RATINGS
1, 2
SYMBOL
PARAMETER CONDITIONS RATING UNIT
V
CC
DC supply voltage –0.5 to +7.0 V
I
IK
DC input diode current VI < 0 –18 mA
V
I
DC input voltage
3
–1.2 to +7.0 V
I
OK
DC output diode current VO < 0 –50 mA
V
OUT
DC output voltage
3
Output in Off or High state –0.5 to +5.5 V
p
Output in Low state 128
I
OUT
DC out ut current
Output in High state –64
mA
T
stg
Storage temperature range –65 to 150 °C
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.
RECOMMENDED OPERATING CONDITIONS
SYMBOL PARAMETER LIMITS UNIT
MIN MAX
V
CC
DC supply voltage 4.5 5.5 V
V
I
Input voltage 0 V
CC
V
V
IH
High-level input voltage 2.0 V
V
IL
Low-level Input voltage 0.8 V
I
OH
High-level output current –32 mA
I
OL
Low-level output current 64 mA
∆t/∆v Input transition rise or fall rate 0 10 ns/V
T
amb
Operating free-air temperature range –40 +85 °C
Page 7
Philips Semiconductors Product specification
74ABT16952
74ABTH16952
16-bit registered transceiver (3-State)
1998 Feb 25
7
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL PARAMETER TEST CONDITIONS
T
amb
= +25°C
T
amb
= –40°C
to +85°C
UNIT
MIN TYP MAX MIN MAX
V
IK
Input clamp voltage VCC = 4.5V; IIK = –18mA –0.9 –1.2 –1.2 V
VCC = 4.5V; IOH = –3mA; VI = VIL or V
IH
2.5 2.9 2.5 V
V
OH
High-level output voltage
VCC = 5.0V; IOH = –3mA; VI = VIL or V
IH
3.0 3.4 3.0 V
VCC = 4.5V; IOH = –32mA; VI = VIL or V
IH
2.0 2.4 2.0 V
V
OL
Low-level output voltage VCC = 4.5V; IOL = 64mA; VI = VIL or V
IH
0.42 0.55 0.55 V
V
RST
Power-up output low voltage3VCC = 5.5V; IOL = 1mA; VI = GND or V
CC
0.13 0.55 0.55 V
I
I
Input leakage
current
Control pins VCC = 5.5V; VI = GND or 5.5V ±0.01 ±1.0 ±1.0 µA
VCC = 4.5V, VI = 0.8V 50 50
I
HOLD
B
us Hold current A inputs
6
VCC = 4.5V; VI = 2.0V –75 –75
µA
74ABTH16952
VCC = 5.5V; VI = 0 to 5.5V ±500
I
OFF
Power-off leakage current VCC = 0V; VO or VI ≤ 4.5V ±5.0 ±100 ±100 µA
I
PU/PD
Power-up/down 3-State
output current
4
VCC = 2.1V; VO = 0.0V; VI = GND or VCC;
VOE = Don’t care
±5.0 ±50 ±50 µA
IIH + I
OZH
3-State output High current VCC = 5.5V; VO = 5.5V; VI = VIL or V
IH
5.0 50 50 µA
IIL + I
OZL
3-State output Low current VCC = 5.5V; VO = 0.0V; VI = VIL or V
IH
–5.0 –50 –50 µA
I
CEX
Output High leakage current VCC = 5.5V; VO = 5.5V; VI = GND or V
cc
5.0 50 50 µA
I
O
Output current
1
VCC = 5.5V; VO = 2.5V –50 –70 –180 –50 –180 mA
I
CCH
VCC = 5.5V; Outputs High, VI = GND or V
CC
0.5 1.5 1.5 mA
I
CCL
pp
VCC = 5.5V; Outputs Low , VI = GND or V
CC
8 19 19 mA
I
CCZ
Quiescent su ly current
VCC = 5.5V; Outputs 3-State;
VI = GND or V
CC
0.5 1.5 1.5 mA
∆I
CC
Additional supply current per
input pin2 74ABT16952
VCC = 5.5V; one input at 3.4V,
other inputs at VCC or GND
5 100 100 µA
∆I
CC
Additional supply current per
input pin2 74ABTH16952
VCC = 5.5V; one input at 3.4V,
other inputs at VCC or GND
100 500 500 µA
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
CC
between 0V and 2.1V with a transition time of up to 10msec. From VCC = 2.1V to VCC = 5V ± 10% a
transition time of up to 100µsec is permitted.
5. Unused pins at V
CC
or GND.
6. This is the bus hold overdrive current required to force the input to the opposite logic state.
AC CHARACTERISTICS
GND = 0V; tR = tF = 2.5ns; CL = 50pF, RL = 500Ω
LIMITS
SYMBOL PARAMETER WAVEFORM
T
amb
= +25°C
VCC = +5.0V
T
amb
= –40°C to +85°C
VCC = +5.0V ±0.5V
UNIT
MIN TYP MAX MIN MAX
f
MAX
Maximum clock frequency 1 150 150 MHz
t
PLH
t
PHL
Propagation delay
nCPBA to nAx, nCPAB to nBx
1
1.0
1.0
2.8
2.3
3.9
3.9
1.0
1.0
4.3
4.3
ns
t
PZH
t
PZL
Output enable time
nOEBA to nAx, nOEAB to nBx
3
4
1.0
1.0
2.5
2.2
3.8
3.8
1.0
1.0
4.6
4.6
ns
t
PHZ
t
PLZ
Output disable time
nOEBA to nAx, nOEAB to nBx
3
4
1.7
1.3
3.4
2.6
4.4
3.9
1.7
1.3
5.2
4.2
ns
Page 8
Philips Semiconductors Product specification
74ABT16952
74ABTH16952
16-bit registered transceiver (3-State)
1998 Feb 25
8
AC SETUP REQUIREMENTS
LIMITS
SYMBOL PARAMETER WA VEFORM
T
amb
= +25°C
V
CC
= +5.0V
T
amb
= –40°C to +85°C
V
CC
= +5.0V ±0.5V
UNIT
MIN TYP MIN
tS(H)
ts(L)
Setup time
nAx to nCPAB or nBx to nCPBA
2
1.2
1.5
0.9
1.2
1.2
1.5
ns
th(H)
t
h
(L)
Hold time
nAx to nCPAB or nBx to nCPBA
2
0.0
0.0
–1.2
–0.9
0.0
0.0
ns
ts(H)
ts(L)
Setup time
nCEAB to nCPAB, nCEBA to nCPBA
2
1.2
1.6
0.9
1.1
1.2
1.6
ns
th(H)
th(L)
Hold time
nCEAB to nCPAB, nCEBA to nCPBA
2
0.0
0.0
–1.1
–0.9
0.0
0.0
ns
tw(H)
tw(L)
nCPAB or nCPBA pulse width,
High or Low
1
3.3
2.5
2.6
1.0
3.3
2.5
ns
AC WAVEFORMS
VM = 1.5V, VIN = GND to 3.0V
V
M
V
M
V
M
V
M
V
M
1/f
MAX
tw(H) tw(L)
t
PHL
t
PLH
nCPBA or
nCPAB
nAx or nBx
SH00073
Waveform 1. Propagation Delay, Clock Input to Output, Clock
Pulse Width, and Maximum Clock Frequency
nAx, nBx
nCEAB,
nCEBA
nCPAB,
nCPBA
ts(H) th(H) ts(L) th(L)
SH00074
VMV
M
VMV
M
V
M
V
M
Waveform 2. Data Setup and Hold Times
nOEAB,
nOEBA
V
M
t
PZH
t
PHZ
0V
V
OH
–0.3V
nAx, nBx
V
M
V
M
SH00075
V
OH
Waveform 3. 3-State Output Enable Time to High Level and
Output Disable Time from High Level
nOEAB,
nOEBA
t
PZL
t
PLZ
VOL +0.3V
nAx, nBx
V
M
V
M
V
M
SH00076
VOL
Waveform 4. 3-State Output Enable Time to Low Level and
Output Disable Time from Low Level
Page 9
Philips Semiconductors Product specification
74ABT16952
74ABTH16952
16-bit registered transceiver (3-State)
1998 Feb 25
9
TEST CIRCUIT AND WAVEFORMS
PULSE
GENERATOR
R
T
V
IN
D.U.T.
V
OUT
R
L
V
CC
R
L
7.0V
Test Circuit for 3-State Outputs
V
M
V
M
t
W
AMP (V)
NEGATIVE
PULSE
10% 10%
90%
90%
0V
V
M
V
M
t
W
AMP (V)
POSITIVE
PULSE
90% 90%
10%
10%
0V
t
THL
(tF)
t
TLH
(tR)t
THL
(tF)
t
TLH
(tR)
VM = 1.5V
Input Pulse Definition
DEFINITIONS
RL = Load resistor; see AC CHARACTERISTICS for value.
C
L
= Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
R
T
= Termination resistance should be equal to Z
OUT
of
pulse generators.
INPUT PULSE REQUIREMENTS
FAMILY
Amplitude Rep. Rate t
W
t
R
t
F
74ABT/H16 3.0V 1MHz 500ns 2.5ns 2.5ns
SWITCH POSITION
TEST SWITCH
t
PLZ
closed
t
PZL
closed
All other open
SA00018
C
L
Page 10
Philips Semiconductors Product specification
74ABT16952
74ABTH16952
16-bit registered transceiver (3-State)
1998 Feb 25
10
SSOP56: plastic shrink small outline package; 56 leads; body width 7.5 mm SOT371-1
Page 11
Philips Semiconductors Product specification
74ABT16952
74ABTH16952
16-bit registered transceiver (3-State)
1998 Feb 25
11
TSSOP56: plastic thin shrink small outline package; 56 leads; body width 6.1mm SOT364-1
Page 12
Philips Semiconductors Product specification
74ABT16952
74ABTH16952
16-bit registered transceiver (3-State)
yyyy mmm dd
12
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 800-234-7381
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: 9397-750-03508
Data sheet
status
Objective
specification
Preliminary
specification
Product
specification
Product
status
Development
Qualification
Production
Definition
[1]
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.
Data sheet status
[1] Please consult the most recently issued datasheet before initiating or completing a design.
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