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74ABT162244
74ABTH162244
16-bit buffer/line driver with 30Ω series
termination resistors (3-State)
Product specification
Supersedes data of 1998 Feb 25
IC23 Data Handbook
1998 Oct 22
Philips Semiconductors Product specification
16-bit buffer/line driver with 30Ω series
termination resistors (3-State)
FEA TURES
•16-bit bus interface
•Multiple V
•Power-up 3-State
•3-State buffers
•Output capability: +12 mA/–32mA
•Live insertion/extraction permitted
•Latch-up protection exceeds 500mA per JEDEC Std 17
•ESD protection exceeds 2000 V per MIL STD 883 Method 3015
and 200 V per Machine Model
•Same part as 74ABT162244-1
•74ABTH162244 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
DESCRIPTION
The 74ABT162244 high-performance BiCMOS device combines
low static and dynamic power dissipation with high speed.
The 74ABT162244 device is a 16-bit buffer that is ideal for driving
bus lines. The device features four Output Enables (1OE
3OE
, 4OE), each controlling four of the 3-State outputs.
The 74ABT162244 is designed with 30Ω series resistance in both
the upper and lower output structures. This design reduces line
noise in applications such as memory address drivers, clock drivers
and bus receivers/transmitters.
The 74ABT162244 is the same as the 74ABT16244-1. The part
number has been changed to reflect industry standards.
Two options are available, 74ABT162244 which does not have the
bus hold feature and the 74ABTH162244 which incorporates the bus
hold feature.
and GND pins minimize switching noise
CC
, 2OE,
PIN CONFIGURATION
1
1OE
2
1Y0
3
1Y1
4
GND
5
1Y2
6
1Y3
7
V
CC
8
2Y0
9
2Y1
10
GND
11
2Y2
12
2Y3
13
3Y0
14
3Y1
15
GND
16
3Y2
17
3Y4
18
V
CC
19
4Y0
20
4Y1
21
GND
22
4Y2
23
4Y3
24
4OE
74ABT162244
74ABTH162244
48
2OE
47
1A0
46
1A1
45
GND
44
1A2
43
1A3
42
V
CC
41
2A0
40
2A1
39
GND
38
2A2
37
2A3
36
3A0
35
3A1
34
GND
33
3A2
32
3A3
V
31
CC
30
4A0
29
4A1
28
GND
27
4A2
26
4A3
25
3OE
SA00013
QUICK REFERENCE DA TA
SYMBOL PARAMETER
t
PLH
t
PHL
C
IN
C
OUT
I
CCZ
I
CCL
ORDERING INFORMATION
48-Pin Plastic SSOP Type III –40°C to +85°C 74ABT162244 DL BT162244 DL SOT370-1
48-Pin Plastic TSSOP Type II –40°C to +85°C 74ABT162244 DGG BT162244 DGG SOT362-1
48-Pin Plastic SSOP Type III –40°C to +85°C 74ABTH162244 DL BH162244 DL SOT370-1
48-Pin Plastic TSSOP Type II –40°C to +85°C 74ABTH162244 DGG BH162244 DGG SOT362-1
1998 Oct 22 853-1773 20224
T
amb
Propagation delay
nAx to nYx
CL = 50pF; VCC = 5V
Input capacitance VI = 0V or V
CONDITIONS
= 25°C; GND = 0V
CC
TYPICAL UNIT
1.8
3.2
ns
3 pF
Output capacitance VO = 0V or VCC; 3-State 7 pF
pp
Outputs disabled; VCC = 5.5V 500 µA
Outputs Low; VCC = 5.5V 10 mA
PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER
2
Philips Semiconductors Product specification
16-bit buffer/line driver with 30Ω series
termination resistors (3-State)
LOGIC SYMBOL
1A0
47
1A1
46
1A2
44
1A3
43
1OE
1
2A0
41
2A1
40
2A2
38
2A3
37
2OE
48
1Y0
1Y1
1Y2
1Y3
2Y0
2Y1
2Y2
2Y3
FUNCTION TABLE
INPUTS OUTPUTS
nOE nAx nYx
L L L
L H H
H X Z
H = High voltage level
L = Low voltage level
X = Don’t care
Z = High impedance “off” state
SCHEMATIC OF Y OUTPUTS
V
CC
3A0
2
36
3A1
3
35
3A2
5
33
3A3
6
32
3OE
25
4A0
8
30
4A1
29
9
4A2
27
11
4A3
26
12
4OE
24
27Ω
3Y0
3Y1
3Y2
3Y3
4Y0
4Y1
4Y2
4Y3
SA00014
13
14
16
17
19
20
22
23
74ABT162244
74ABTH162244
LOGIC SYMBOL (IEEE/IEC)
1
1OE
48
2OE
25
3OE
24
4OE
47
1A0
46
1A1
44
1A2
43
1A3
41
2A0
40
2A1
38
2A2
37
2A3
36
3A0
35
3A1
33
3A2
32
3A3
30
4A0
29
4A1
27
4A2
26
4A3
PIN DESCRIPTION
PIN NUMBER SYMBOL NAME AND FUNCTION
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
1, 48
25, 24
4, 10, 15, 21
28, 34, 39, 45
7, 18, 31, 42 V
EN1
EN2
EN3
EN4
1 ∇
1
2 ∇1
3 ∇1
4 ∇1
1A0 – 1A3,
2A0 – 2A3,
3A0 – 3A3,
Data inputs
4A0 – 4A3
1Y0 – 1Y3,
2Y0 – 2Y3,
3Y0 – 3Y3,
Data outputs
4Y0 – 4Y3
1OE, 2OE,
3OE, 4OE
Output enables
GND Ground (0V)
CC
Positive supply voltage
2
1Y0
3
1Y1
5
1Y2
6
1Y3
8
2Y0
9
2Y1
11
2Y2
12
2Y3
13
3Y0
14
3Y1
16
3Y2
17
3Y3
19
4Y0
20
4Y1
22
4Y2
23
4Y3
SH00089
1998 Oct 22
OUTPUT
27Ω
GND
SA00042
3