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74ABT16241A
74ABTH16241A
16-bit buffer/driver (3-State)
Product specification
Supersedes data of 1997 Jun 12
IC23 Data Handbook
1998 Feb 25
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Philips Semiconductors Product specification
16-bit buffer/driver (3-State)
74ABT16241A
74ABTH16241A
FEA TURES
•16-bit bus interface
•3-State buffers
•Output capability: +64mA/-32mA
•TTL input and output switching levels
•Input and output interface capability to systems at 5V supply
•Bus-hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs
•Live insertion/extraction permitted
•Power-up 3-State
•74ABTH16241A incorporates bus hold data inputs which eliminate
the need for external pull up resistors to hold unused inputs
•Latch-up protection exceeds 500mA per JEDEC Std 17
•ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model
QUICK REFERENCE DATA
SYMBOL PARAMETER
t
PLH
t
PHL
C
IN
C
OUT
I
CCZ
I
CCL
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER
48-Pin Plastic SSOP Type III –40°C to +85°C 74ABT16241A DL BT16241A DL SOT370-1
48-Pin Plastic TSSOP Type II –40°C to +85°C 74ABT16241A DGG BT16241A DGG SOT362-1
48-Pin Plastic SSOP Type III –40°C to +85°C 74ABTH16241A DL BH16241A DL SOT370-1
48-Pin Plastic TSSOP Type II –40°C to +85°C 74ABTH16241A DGG BH16241A DGG SOT362-1
Propagation delay
nAx to nYx
CL = 50pF;
VCC =
Input capacitance nOE VI = 0V or 3.0V 4 pF
Output capacitance Outputs disabled; VO = 0V or 6 pF
pp
Outputs disabled; VCC = 500 µA
Outputs low; VCC = 5.5V 8 mA
DESCRIPTION
The 74ABT16241A is a high-performance BiCMOS device which
combines low static and dynamic power dissipation with high speed
and high output drive.
This 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, 74ABT16241A which does not have the
bus hold feature and 74ABTH16241A which incorporates the bus
hold feature.
CONDITIONS
T
= 25°C
amb
TYPICAL UNIT
1.8
1.6
ns
LOGIC SYMBOL
47
46
44
43
1
41
40
38
37
48
1998 Feb 25 853-1991 19019
1A0
1A1
1A2
1A3
1OE
2A0
2A1
2A2
2A3
2OE
1Y0
1Y1
1Y2
1Y3
2Y0
2Y1
2Y2
2Y3
3A0
2
36
3A1
3
35
3A2
5
33
3A3
6
32
3OE
25
4A0
8
30
4A1
9
29
4A2
11
27
4A3
12
26
4OE
24
3Y0
3Y1
3Y2
3Y3
4Y0
4Y1
4Y2
4Y3
SA00432
13
14
16
17
19
20
22
23
2
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Philips Semiconductors Product specification
16-bit buffer/driver (3-State)
PIN CONFIGURA TION
1
1OE
2
1Y0
1Y1
3
GND
4
1Y2
5
1Y3
6
V
7
CC
2Y0
8
2Y1
9
GND
10
2Y2
11
2Y3
12
3Y0
13
3Y1
14
GND
15
3Y2
16
3Y4
17
V
18
CC
4Y0
19
4Y1
20
GND
21
4Y2
22
4Y3
23
4OE
24
SA00434
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
1A0-1A3
2A0-2A3
3A0-3A3
4A0-4A3
1Y0-1Y3
2Y0-2Y3
3Y0-3Y3
4Y0-4Y3
1OE, 2OE,
3OE, 4OE
GND Ground (0V)
CC
2OE
48
1A0
47
1A1
46
GND
45
1A2
44
1A3
43
V
42
CC
2A0
41
2A1
40
GND
39
2A2
38
2A3
37
3A0
36
3A1
35
GND
34
3A2
33
3A3
32
V
31
CC
30
4A0
4A1
29
GND
28
27
4A2
26
4A3
25
3OE
Data inputs
Data outputs
Output enables
Positive supply voltage
74ABT16241A
74ABTH16241A
LOGIC SYMBOL (IEEE/IEC)
1
1OE
48
2OE
25
3OE
24
4OE
47
1A1
46
1A2
44
1A3
43
1A4
41
2A1
40
2A2
38
2A3
37
2A4
36
3A1
35
3A2
33
3A3
32
3A4
30
4A1
29
4A2
27
4A3
26
4A4
FUNCTION TABLE
Inputs Outputs
1OE, 4OE 1An, 4An 1Yn, 4Yn
L L L
L H H
H X Z
2OE, 3OE 2An, 3An 2Yn, 3Yn
H L L
H H H
L X Z
H = High voltage level
L = Low voltage level
X = Don’t care
Z = High Impedance “off” state
EN1
EN2
EN3
EN4
1 ∇
1
2 ∇1
3 ∇1
4 ∇1
2
1Y1
3
1Y2
5
1Y3
6
1Y4
8
2Y1
9
2Y2
11
2Y3
12
2Y4
13
3Y1
14
3Y2
16
3Y3
17
3Y4
19
4Y1
20
4Y2
22
4Y3
23
4Y4
SA00433
1998 Feb 25
3