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INTEGRATED CIRCUITS
74ABT162245A
74ABTH162245A
16-Bit bus transceiver with 30Ω series
termination resistors (3-State)
Product specification
Supersedes data of 1996 Nov 20
IC23 Data Handbook
1998 Feb 25
Philips Semiconductors
Product specification
16-bit bus transceiver with 30Ω series
termination resistors (3-State)
FEATURES
74ABT162245A
74ABTH162245A
DESCRIPTION
• 16-bit bidirectional bus interface
• Power-up 3-State
• Multiple VCC and GND pins minimize switching noise
• 3-State buffers
• Output capability: +12mA/–32mA
• Latch-up protection exceeds 500mA per JEDEC Std 17
• ESD protection exceeds 2000 V per MIL STD 883 Method 3015
The 74ABT162245A high-performance BiCMOS device combines
low static and dynamic power dissipation with high speed.
The 74ABT162245A device is a 16-bit transceiver featuring
non-inverting 3-State bus compatible outputs in both send and
receive directions. The control function implementation minimizes
external timing requirements. The device features two Output
Enable (1OE, 2OE) inputs for easy cascading and two Direction
(1DIR, 2DIR) inputs for direction control.
The 74ABT162245A is designed with 30 ohm series resistance in
both the upper and lower output structures on both A and B ports.
This design reduces line noise in applications such as memory
address drivers, clock drivers, and bus receiver/transmitters.
and 200V per Machine Model
• Same part as 74ABT16245A-1
• 74ABTH162245A incorporates bus hold data inputs which
The 74ABT162245A is the same as the 74ABT16245A-1. The part
number has been changed to reflect industry standards
eliminate the need for external pull-up resistors to hold unused
inputs
• Bus-hold data inputs eliminate the need for external pull-up
Two options are available, 74ABT162245A which does not have the
bus hold feature and the 74ABTH162245A which incorporates the
bus hold feature.
resistors to hold unused inputs
QUICK REFERENCE DATA
SYMBOL
CONDITIONS
Tamb = 25°C; GND = 0V
PARAMETER
TYPICAL
UNIT
2.0
3.0
ns
pF
tPLH
tPHL
Propagation delay
nAx to nBx or nBx to nAx
CL = 50pF; VCC = 5V
CIN
Input capacitance
VI = 0V or VCC
3
CI/O
I/O pin capacitance
VO = 0V or VCC; 3-State
7
pF
Outputs disabled; VCC = 5.5V
300
nA
Outputs Low; VCC = 5.5V
10
mA
ICCZ
Quiescent su
supply
ly current
ICCL
ORDERING INFORMATION
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
DWG NUMBER
48-Pin Plastic SSOP Type III
PACKAGES
–40°C to +85°C
74ABT162245A DL
BT162245A DL
SOT370-1
48-Pin Plastic TSSOP Type II
–40°C to +85°C
74ABT162245A DGG
BT162245A DGG
SOT362-1
48-Pin Plastic SSOP Type III
–40°C to +85°C
74ABTH162245A DL
BH162245A DL
SOT370-1
48-Pin Plastic TSSOP Type II
–40°C to +85°C
74ABTH162245A DGG
BH162245A DGG
SOT362-1
1998 Feb 25
2
853-1772 19018
Philips Semiconductors
Product specification
74ABT162245A
74ABTH162245A
16-bit bus transceiver with 30Ω series
termination resistors (3-State)
PIN CONFIGURATION
LOGIC SYMBOL
1DIR
1
48
1OE
1B0
2
47
1A0
1B1
3
46
1A1
GND
4
45
GND
1B2
5
44
1A2
1B3
6
43
1A3
VCC
7
42
VCC
1B4
8
41
1A4
1B5
9
40
1A5
GND 10
39
GND
1B6 11
38
1A6
1B7 12
37
1A7
2B0 13
36
2A0
2B1 14
35
2A1
GND 15
34
GND
2B2 16
33
2A2
2B3 17
32
2A3
VCC 18
31
VCC
2B4 19
30
2A4
2B5 20
29
2A5
21
28
GND
2B6 22
27
2A6
2B7 23
26
2A7
24
25
2OE
GND
2DIR
1DIR
1
2DIR
48
1A0
1A1
1A2
1A3
1A4
1A5
1A6
1A7
47
2
46
3
44
5
43
6
41
8
40
9
38
11
37
12
1DIR, 2DIR
1, 24
Direction control inputs
(Active-High)
47, 46, 44, 43
41, 40, 38, 37
36, 35, 33, 32
30, 29, 27, 26
Data inputs/outputs (A side)
1B0 – 1B7
2B0 – 2B7
2, 3, 5, 6
8, 9, 11, 12
13, 14, 16, 17
19, 20, 22, 23
Data inputs/outputs (B side)
1OE, 2OE
48, 25
GND
4, 10, 15, 21
28, 34, 39, 45
Ground (0V)
VCC
7, 18, 31, 42
Positive supply voltage
1998 Feb 25
2A0
1B1
2A1
1B2
2A2
1B3
2A3
1B4
2A4
1B5
2A5
1B6
2A6
1B7
2A7
INPUTS
NAME AND FUNCTION
1A0 – 1A7,
2A0 – 2A7
1B0
36
13
35
14
33
16
32
17
30
19
29
20
27
22
26
23
FUNCTION TABLE
PIN DESCRIPTION
PIN NUMBER
25
1OE
2OE
2B0
2B1
2B2
2B3
2B4
2B5
2B6
2B7
SA00021
SA00020
SYMBOL
24
H
L
X
Z
Output enables
3
INPUTS/OUTPUTS
nOE
nDIR
nAx
nBx
L
L
A=B
Inputs
L
H
Inputs
B=A
H
X
Z
Z
= HIGH voltage level
= LOW voltage level
= D0n’t care
= High impedance “off” state
Philips Semiconductors
Product specification
74ABT162245A
74ABTH162245A
16-bit bus transceiver with 30Ω series
termination resistors (3-State)
LOGIC SYMBOL (IEEE/IEC)
48
1
SCHEMATIC OF EACH OUTPUT
G3
VCC
3 EN1 (BA)
3 EN2 (AB)
25
G6
24
6 EN4 (BA)
27Ω
6 EN5 (AB)
47
∇1
2
2∇
46
3
44
5
43
6
41
8
40
9
38
11
37
12
36
∇4
OUTPUT
27Ω
GND
SA00042
13
5∇
35
14
33
16
32
17
30
19
29
20
27
22
26
23
SA00022
1998 Feb 25
4
Philips Semiconductors
Product specification
74ABT162245A
74ABTH162245A
16-bit bus transceiver with 30Ω series
termination resistors (3-State)
ABSOLUTE MAXIMUM RATINGS1, 2
PARAMETER
SYMBOL
VCC
IIK
CONDITIONS
RATING
UNIT
–0.5 to +7.0
V
–18
mA
–1.2 to +7.0
V
VO < 0
–50
mA
output in Off or High state
–0.5 to +5.5
V
output in Low state
128
output in High state
–64
DC supply voltage
DC input diode current
VI < 0
voltage3
VI
DC input
IOK
DC output diode current
voltage3
VOUT
DC output
IOUT
O
DC output current
Tstg
Storage temperature range
mA
–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
LIMITS
SYMBOL
VCC
PARAMETER
UNIT
DC supply voltage
Min
Max
4.5
5.5
V
0
VCC
V
VI
Input voltage
VIH
High-level input voltage
VIL
Low-level Input voltage
0.8
V
IOH
High-level output current
–32
mA
IOL
Low-level output current
12
mA
0
10
ns/V
–40
+85
°C
∆t/∆v
Input transition rise or fall rate
Tamb
Operating free-air temperature range
1998 Feb 25
2.0
5
V
Philips Semiconductors
Product specification
74ABT162245A
74ABTH162245A
16-bit bus transceiver with 30Ω series
termination resistors (3-State)
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Min
VIK
VOH
VOL
O
II
IHOLD
Input clamp voltage
High-level output voltage
Tamb = –40°C
to +85°C
Tamb = +25°C
VCC = 4.5V; IIK = –18mA
Typ
Max
–0.9
–1.2
Min
UNIT
Max
–1.2
V
VCC = 4.5V; IOH = –3mA; VI = VIL or VIH
2.5
2.9
2.5
V
VCC = 5.0V; IOH = –3mA; VI = VIL or VIH
3.0
3.4
3.0
V
VCC = 4.5V; IOH = –32mA; VI = VIL or VIH
2.0
2.4
2.0
V
Low-level output voltage
VCC = 4.5V; IOL = 8mA; VI = VIL or VIH
0.46
0.65
0.65
V
Low-level output voltage
VCC = 4.5V; IOL = 12mA; VI = VIL or VIH
0.50
0.80
0.80
V
Input leakage current
VCC = 5.5V; VI = GND or 5.5V
±0.01
±1.0
±1.0
µA
Bus hold current
A and B inputs4
74ABTH162245A
Control
pins
VCC = 4.5V; VI = 0.8V
50
50
VCC = 5.5V; VI = 2.0V
–75
–75
VCC = 5.5V; VI = 0 to 5.5V
±500
µA
Power-off leakage current
VCC = 0.0V; VO or VI ≤ 4.5V
±5.0
±100
±100
µA
IPU/IPD
Power-up/down 3-State
output current3
VCC = 2.0V; VO = 0.5V; VI = GND or VCC;
VOE = Don’t care
±5.0
±50
±50
µA
IIH+IOZH
3-State output High current
VCC = 5.5V; VO = 5.5V; VI = VIL or VIH
0.5
10
10
µA
IIL+IOZL
3-State output Low current
VCC = 5.5V; VO = 0.0V; VI = VIL or VIH
–0.5
–10
–10
µA
ICEX
Output high leakage current
VCC = 5.5V; VO = 5.5V; VI = GND or VCC
5.0
50
50
µA
–92
–180
–180
mA
VCC = 5.5V; Outputs High, VI = GND or VCC
0.3
0.70
0.70
mA
VCC = 5.5V; Outputs Low, VI = GND or VCC
10
19
19
mA
VCC = 5.5V; Outputs 3-State;
VI = GND or VCC
0.3
0.70
0.70
mA
Outputs enabled, one data input at 3.4V,
other inputs at VCC or GND; VCC = 5.5V
400
700
700
µA
Outputs 3-State, one data input at 3.4V, other
inputs at VCC or GND; VCC = 5.5V
74ABT162245A
1.0
50
50
µA
Outputs 3-State, one data input at 3.4V, other
inputs at VCC or GND; VCC = 5.5V
74ABTH162245A
100
250
250
µA
Control pins, outputs disabled, one enable
input at 3.4V, other inputs at VCC or GND;
VCC = 5.5V
400
700
700
µA
IOFF
IO
Output
current1
ICCH
ICCL
Quiescent supply current
ICCZ
∆ICC
Additional supply current per
input pin2
VCC = 5.5V; VO = 2.5V
–50
–50
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. This parameter is valid for any VCC between 0V and 2.1V, with a transition time of up to 10msec. From VCC = 2.1V to VCC = 5 ±10% a
transition time of up to 100 µsec is permitted.
4. This is the bus hold overdrive current required to force the input to the opposite logic state.
1998 Feb 25
6
Philips Semiconductors
Product specification
74ABT162245A
74ABTH162245A
16-bit bus transceiver with 30Ω series
termination resistors (3-State)
AC CHARACTERISTICS
GND = 0V; tR = tF = 2.5ns; CL = 50pF, RL = 500Ω
LIMITS
SYMBOL
PARAMETER
Tamb = +25°C
VCC = +5.0V
WAVEFORM
Tamb = –40°C to +85°C
VCC = +5.0V ±0.5V
Min
Typ
Max
Min
Max
UNIT
tPLH
tPHL
Propagation delay
nAx to nBx or nBx to nAx
1
1.0
1.5
2.0
3.0
3.3
4.5
1.0
1.5
3.5
4.9
ns
tPZH
tPZL
Output enable time
to High and Low level
2
1.5
2.0
3.1
5.0
4.3
6.1
1.5
2.0
5.0
7.0
ns
tPHZ
tPLZ
Output disable time
from High and Low level
2
1.7
1.5
3.5
3.2
4.8
4.5
1.7
1.5
5.4
4.9
ns
AC WAVEFORMS
VM = 1.5V, VIN = GND to 3.0V
3V
nOE INPUT
1.5V
1.5V
VM
VM
INPUT
0V
tPLH
tPZL
tPHL
VOH
1.5V
tPLZ
3.5V
OUTPUT
VM
1.5V
VOL + 0.3V
VOL
OUTPUT
VOL
tPHZ
tPZH
SA00028
VOH
VOH – 0.3V
VM
Waveform 1. Input to Output Propagation Delays
OUTPUT
0V
SA00024
Waveform 2. 3-State Output Enable and Disable Times
1998 Feb 25
7
Philips Semiconductors
Product specification
74ABT162245A
74ABTH162245A
16-bit bus transceiver with 30Ω series
termination resistors (3-State)
TEST CIRCUIT AND WAVEFORMS
VCC
7.0V
PULSE
GENERATOR
VOUT
VIN
tW
90%
VM
NEGATIVE
PULSE
10%
0V
tTLH (tR)
tTHL (tF)
CL
tTLH (tR)
RL
tTHL (tF)
90%
POSITIVE
PULSE
Test Circuit for 3-State Outputs
AMP (V)
90%
VM
VM
10%
10%
tW
SWITCH POSITION
TEST
SWITCH
tPLZ
closed
tPZL
closed
All other
open
0V
VM = 1.5V
Input Pulse Definition
INPUT PULSE REQUIREMENTS
DEFINITIONS
RL = Load resistor; see AC CHARACTERISTICS for value.
CL = Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
RT = Termination resistance should be equal to ZOUT of
pulse generators.
AMP (V)
VM
10%
RL
D.U.T.
RT
90%
FAMILY
74ABT/H16
Amplitude
Rep. Rate
tW
tR
tF
3.0V
1MHz
500ns
2.5ns
2.5ns
SA00018
1998 Feb 25
8
Philips Semiconductors
Product specification
16-Bit bus transceiver with 30Ω series termination
resistors (3-State)
SSOP48: plastic shrink small outline package; 48 leads; body width 7.5 mm
1998 Feb 25
9
74ABT162245A
74ABTH162245A
SOT370-1
Philips Semiconductors
Product specification
16-Bit bus transceiver with 30Ω series termination
resistors (3-State)
74ABT162245A
74ABTH162245A
TSSOP48: plastic thin shrink small outline package; 48 leads; body width 6.1mm
1998 Feb 25
10
SOT362-1
Philips Semiconductors
Product specification
16-Bit bus transceiver with 30Ω series termination
resistors (3-State)
NOTES
1998 Feb 25
11
74ABT162245A
74ABTH162245A
Philips Semiconductors
Product specification
16-Bit bus transceiver with 30Ω series termination
resistors (3-State)
74ABT162245A
74ABTH162245A
Data sheet status
Data sheet
status
Product
status
Definition [1]
Objective
specification
Development
This data sheet contains the design target or goal specifications for product development.
Specification may change in any manner without notice.
Preliminary
specification
Qualification
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.
Product
specification
Production
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] 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.
Copyright Philips Electronics North America Corporation 1998
All rights reserved. Printed in U.S.A.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
print code
Document order number:
yyyy mmm dd
12
Date of release: 05-96
9397-750-03487
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