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
Philips Semiconductors
Product specification
16-bit bus transceiver with 30Ω series
termination resistors (3-State)
74ABT162245A
74ABTH162245A
FEATURES
•
16-bit bidirectional bus interface
•
Power-up 3-State
•
Multiple V
CC
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
and 200V per Machine Model
DESCRIPTION
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.
The 74ABT162245A is the same as the 74ABT16245A-1. The part
number has been changed to reflect industry standards
Two options are available, 74ABT162245A which does not have the
bus hold feature and the 74ABTH162245A which incorporates the
bus hold feature.
CONDITIONS
T
amb
= 25°C; GND = 0V
•
Same part as 74ABT16245A-1
•
74ABTH162245A incorporates bus hold data inputs which
eliminate the need for external pull-up resistors to hold unused
inputs
•
Bus-hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs
QUICK REFERENCE DATA
SYMBOL
t
PLH
t
PHL
C
IN
C
I/O
I
CCZ
I
CCL
PARAMETER
Propagation delay
nAx to nBx or nBx to nAx
Input capacitance
I/O pin capacitance
Quiescent su ly current
supply
TYPICAL
2.0
3.0
3
7
300
10
UNIT
ns
pF
pF
nA
mA
C
L
= 50pF; V
CC
= 5V
V
I
= 0V or V
CC
V
O
= 0V or V
CC
; 3-State
Outputs disabled; V
CC
= 5.5V
Outputs Low; V
CC
= 5.5V
ORDERING INFORMATION
PACKAGES
48-Pin Plastic SSOP Type III
48-Pin Plastic TSSOP Type II
48-Pin Plastic SSOP Type III
48-Pin Plastic TSSOP Type II
TEMPERATURE RANGE
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
OUTSIDE NORTH AMERICA
74ABT162245A DL
74ABT162245A DGG
74ABTH162245A DL
74ABTH162245A DGG
NORTH AMERICA
BT162245A DL
BT162245A DGG
BH162245A DL
BH162245A DGG
DWG NUMBER
SOT370-1
SOT362-1
SOT370-1
SOT362-1
1998 Feb 25
2
853-1772 19018
Philips Semiconductors
Product specification
16-bit bus transceiver with 30Ω series
termination resistors (3-State)
74ABT162245A
74ABTH162245A
PIN CONFIGURATION
1DIR
1B0
1B1
GND
1B2
1B3
V
CC
1B4
1B5
1
2
3
4
5
6
7
8
9
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1OE
1A0
1A1
GND
1A2
1A3
V
CC
1A4
1A5
GND
1A6
1A7
2A0
2A1
GND
2A2
2A3
V
CC
2A4
2A5
GND
2A6
2A7
2OE
LOGIC SYMBOL
1DIR
1
48
1A0
47
2
2DIR
1OE
1B0
2A0
36
24
25
13
2OE
2B0
1A1
46
3
1B1
2A1
35
14
2B1
1A2
44
5
1B2
2A2
33
16
2B2
GND 10
1B6 11
1B7 12
2B0 13
2B1 14
GND 15
2B2 16
2B3 17
V
CC
18
2B4 19
2B5 20
GND
21
1A3
43
6
1B3
2A3
32
17
2B3
1A4
41
8
1B4
2A4
30
19
2B4
1A5
40
9
1B5
2A5
29
20
2B5
1A6
38
11
1B6
2A6
27
22
2B6
1A7
37
12
1B7
2A7
26
23
2B7
2B6 22
2B7 23
2DIR
24
SA00021
FUNCTION TABLE
INPUTS
nOE
nDIR
L
H
X
INPUTS/OUTPUTS
nAx
A=B
Inputs
Z
nBx
Inputs
B=A
Z
SA00020
PIN DESCRIPTION
SYMBOL
1DIR, 2DIR
PIN NUMBER
1, 24
47, 46, 44, 43
41, 40, 38, 37
36, 35, 33, 32
30, 29, 27, 26
2, 3, 5, 6
8, 9, 11, 12
13, 14, 16, 17
19, 20, 22, 23
48, 25
4, 10, 15, 21
28, 34, 39, 45
7, 18, 31, 42
NAME AND FUNCTION
Direction control inputs
(Active-High)
H
L
X
Z
L
L
H
1A0 – 1A7,
2A0 – 2A7
Data inputs/outputs (A side)
= HIGH voltage level
= LOW voltage level
= D0n’t care
= High impedance “off” state
1B0 – 1B7
2B0 – 2B7
1OE, 2OE
GND
V
CC
Data inputs/outputs (B side)
Output enables
Ground (0V)
Positive supply voltage
1998 Feb 25
3
Philips Semiconductors
Product specification
16-bit bus transceiver with 30Ω series
termination resistors (3-State)
74ABT162245A
74ABTH162245A
LOGIC SYMBOL (IEEE/IEC)
48
1
G3
3 EN1 (BA)
3 EN2 (AB)
25
24
G6
6 EN4 (BA)
6 EN5 (AB)
47
∇
1
2
∇
46
44
43
41
40
38
37
36
∇
4
5
∇
35
33
32
30
29
27
26
14
16
17
19
20
22
23
3
5
6
8
9
11
12
13
2
SCHEMATIC OF EACH OUTPUT
V
CC
27Ω
OUTPUT
27Ω
GND
SA00042
SA00022
1998 Feb 25
4
Philips Semiconductors
Product specification
16-bit bus transceiver with 30Ω series
termination resistors (3-State)
74ABT162245A
74ABTH162245A
ABSOLUTE MAXIMUM RATINGS
1, 2
SYMBOL
V
CC
I
IK
V
I
I
OK
V
OUT
I
O
OUT
T
stg
PARAMETER
DC supply voltage
DC input diode current
DC input voltage
3
DC output diode current
DC output voltage
3
DC output current
output in High state
Storage temperature range
–64
–65 to 150
°C
V
O
< 0
output in Off or High state
output in Low state
V
I
< 0
CONDITIONS
RATING
–0.5 to +7.0
–18
–1.2 to +7.0
–50
–0.5 to +5.5
128
mA
UNIT
V
mA
V
mA
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.
RECOMMENDED OPERATING CONDITIONS
LIMITS
SYMBOL
V
CC
V
I
V
IH
V
IL
I
OH
I
OL
∆t/∆v
T
amb
DC supply voltage
Input voltage
High-level input voltage
Low-level Input voltage
High-level output current
Low-level output current
Input transition rise or fall rate
Operating free-air temperature range
0
–40
PARAMETER
Min
4.5
0
2.0
0.8
–32
12
10
+85
Max
5.5
V
CC
V
V
V
V
mA
mA
ns/V
°C
UNIT
1998 Feb 25
5
