Texas Instruments ABT16244A

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74ABT16244A
74ABTH16244A
16-bit buffer/line driver (3-State)
Product specification
Supersedes data of 1998 Feb 25
IC23 Data Handbook
1998 Oct 07
INTEGRATED CIRCUITS
Philips Semiconductors Product specification
74ABT16244A
74ABTH16244A
16-bit buffer/line driver (3-State)
2
1998 Oct 07 853-1769 20143
FEATURES
16-bit bus interface
Multiple V
CC
and GND pins minimize switching noise
Power-up 3-State
3-State buffers
Output capability: +64 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
74ABTH16244A 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 74ABT16244A high-performance BiCMOS device combines
low static and dynamic power dissipation with high speed and high
output drive.
The 74ABT16244A device is a 16-bit buffer that is ideal for driving
bus lines. The device features four Output Enables (1OE
, 2OE,
3OE
, 4OE), each controlling four of the 3-State outputs.
Two options are available, 74ABT16244A which does not have the
bus hold feature and 74ABTH16244A which incorporates the bus
hold feature.
QUICK REFERENCE DATA
SYMBOL PARAMETER
CONDITIONS
T
amb
= 25°C; GND = 0V
TYPICAL UNIT
t
PLH
t
PHL
Propagation delay
nAx to nYx
C
L
= 50pF; V
CC
= 5V
1.7
2.1
ns
C
IN
Input capacitance V
I
= 0V or V
CC
4 pF
C
OUT
Output capacitance V
O
= 0V or V
CC
; 3-State 7 pF
I
CCZ
Quiescent su
pp
ly current
Outputs disabled; V
CC
= 5.5V 450 µA
I
CCL
Quiescent
su ly
current
Outputs low; V
CC
= 5.5V 10 mA
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER
48-Pin Plastic SSOP Type III –40°C to +85°C 74ABT16244A DL BT16244A DL SOT370-1
48-Pin Plastic TSSOP Type II –40°C to +85°C 74ABT16244A DGG BT16244A DGG SOT362-1
48-Pin Plastic SSOP Type III –40°C to +85°C 74ABH16244A DL BH16244A DL SOT370-1
48-Pin Plastic TSSOP Type II –40°C to +85°C 74ABH16244A DGG BH16244A DGG SOT362-1
LOGIC SYMBOL
1OE
1
1A0
47
1A1
46
1A2
44
1A3
43
2OE
48
2A0
41
2A1
2
40
2A2
38
3
2A3
37
5
6
1Y0
1Y1
1Y2
1Y3
2Y0
2Y1
2Y2
2Y3
8
9
11
12
3OE
25
3A0
36
3A1
35
3A2
33
3A3
32
4OE
24
4A0
30
4A1
13
29
4A2
27
14
4A3
26
16
17
3Y0
3Y1
3Y2
3Y3
4Y0
4Y1
4Y2
4Y3
19
20
22
23
SA00014
Philips Semiconductors Product specification
74ABT16244A
74ABTH16244A
16-bit buffer/line driver (3-State)
1998 Oct 07
3
LOGIC SYMBOL (IEEE/IEC)
48
EN1
1
46
44
43
41
40
38
37
36
EN2
EN3
EN4
1
2 1
3 1
4 1
1
25
24
47
35
33
32
30
29
27
26
3
2
5
6
8
9
11
12
13
14
16
17
19
20
22
23
SH00088
1OE
2OE
3OE
4OE
1A0
1A1
1A2
1A3
2A0
2A1
2A2
3A0
3A1
3A2
3A3
4A0
4A1
4A2
4A3
1Y0
1Y1
1Y2
1Y3
2Y0
2Y1
2Y2
2Y3
3Y0
3Y1
3Y2
3Y3
4Y0
4Y3
2A3
4Y1
4Y2
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
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
1Y0
1Y1
GND
1Y2
1Y3
2Y0
2Y1
GND
2Y2
2Y3
3Y0
3Y1
GND
3Y4
V
CC
4Y0
V
CC
3Y2
4Y1
GND
4Y3
4OE
4Y2
2OE
1A0
1A1
GND
1A2
1A3
2A0
2A1
GND
2A2
2A3
3A0
3A1
GND
3A3
V
CC
4A0
V
CC
3A2
4A1
GND
4A3
3OE
4A2
SA00013
PIN DESCRIPTION
PIN NUMBER SYMBOL NAME AND FUNCTION
47, 46, 44, 43
41, 40, 38, 37
36, 35, 33, 32
30, 29, 27, 26
1A0 – 1A3,
2A0 – 2A3,
3A0 – 3A3,
4A0 – 4A3
Data inputs
2, 3, 5, 6
8, 9, 11, 12
13, 14, 16, 17
19, 20, 22, 23
1Y0 – 1Y3,
2Y0 – 2Y3,
3Y0 – 3Y3,
4Y0 – 4Y3
Data outputs
1, 48
25, 24
1OE, 2OE,
3OE, 4OE
Output enables
4, 10, 15, 21
28, 34, 39, 45
GND Ground (0V)
7, 18, 31, 42 V
CC
Positive supply voltage
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
1234NEXT

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