Philips 74alvt162241 DATASHEETS
INTEGRATED CIRCUITS
74ALVT162241
2.5V/3.3V 16-bit buffer/driver with 30
termination resistors (3-State)
Product specification
Supersedes data of 1997 Dec 16
IC23 Data Handbook
1998 Feb 13
Philips Semiconductors Product specification
SYMBOL
PARAMETER
UNIT
2.5V/3.3V 16-bit buffer/driver with
30 termination resistors (3-State)
FEA TURES
•16-bit bus interface
•5V I/O Compatible
•3-State buffers
•Output capability: +12mA/-12mA
•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
•Outputs include series resistance of 30 making external
termination resistors unnecessary
•Live insertion/extraction permitted
•Power-up 3-State
•No bus current loading when output is tied to 5V bus
•Latch-up protection exceeds 500mA per JEDEC Std 17
•ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model
74AL VT162241
DESCRIPTION
The 74ALVT162241 is a high-performance BiCMOS product designed
for V
operation at 2.5V or 3.3V with I/O compatibility up to 5V.
CC
This device is a 16-bit buffer that is ideal for driving bus lines. The
device features four Output Enables (1OE
controlling four of the 3-State outputs.
The 74ALVT162241 is designed with 30 series resistance in both
High and Low output stages. This design reduces the line noise in
applications such as memory address drivers, clock drivers and bus
receivers/transmitters. The series termination resistors reduce
overshoot and undershoot and are ideal for driving memory arrays.
, 2OE, 3OE, 4OE), each
QUICK REFERENCE DATA
TYPICAL
2.5V 3.3V
3.1
2.3
2.2
2.0
3 3 pF
9 9 pF
t
PLH
t
PHL
C
C
I
CCZ
IN
Out
CONDITIONS
T
= 25°C
amb
Propagation delay
nAx to nYx
Input capacitance nOE VI = 0V or V
Output pin capacitance V
CL = 50pF
= 0V or V
I/O
CC
CC
Total supply current Outputs disabled 40 70 µA
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER
48-Pin Plastic SSOP Type III –40°C to +85°C 74ALVT162241 DL AV162241 DL SOT370-1
48-Pin Plastic TSSOP Type II –40°C to +85°C 74ALVT162241 DGG AV162241 DGG SOT362-1
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
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
3Y0
3Y1
3Y2
3Y3
4Y0
4Y1
4Y2
4Y3
13
14
16
17
19
20
22
23
SCHEMATIC OF EACH OUTPUT
V
V
CC
CC
27Ω
27Ω
OUTPUT
SW00007
ns
SA00405
1998 Feb 13 853-2042 18960
2
Philips Semiconductors Product specification
2.5V/3.3V 16-bit buffer/driver with
30 termination resistors (3-State)
PIN CONFIGURA TION
1OE
1
1Y0
2
1Y1
3
GND
4
1Y2
5
1Y3
6
V
CC
7
2Y0
8
2Y1
9
GND
10
2Y2
11
2Y3
12
3Y0
13
3Y1
14
GND
15
3Y2
16
3Y4
17
V
CC
18
4Y0
19
4Y1
20
GND
21
4Y2
22
4Y3
23
4OE
24
LOGIC SYMBOL (IEEE/IEC)
1OE
2OE
3OE
4OE
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
3A1
3A2
3A3
3A4
4A1
4A2
4A3
4A4
1
48
25
24
47
46
44
43
41
40
38
37
36
35
33
32
30
29
27
26
EN1
EN2
EN3
EN4
SA00407
1
1 ∇
2 ∇1
3 ∇1
4 ∇1
2OE
48
1A0
47
1A1
46
GND
45
1A2
44
1A3
43
V
CC
42
2A0
41
2A1
40
GND
39
2A2
38
2A3
37
3A0
36
3A1
35
GND
34
3A2
33
3A3
32
V
CC
31
4A0
30
4A1
29
GND
28
4A2
27
4A3
26
3OE
25
2
3
5
6
8
9
11
12
13
14
16
17
19
20
22
23
SA00406
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
3Y1
3Y2
3Y3
3Y4
4Y1
4Y2
4Y3
4Y4
74ALVT162241
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
FUNCTION TABLE
Inputs Outputs
1OE, 4OE 1Ax, 4Ax 1Yx, 4Yx
L H H
L L L
H X Z
Inputs Outputs
2OE, 3OE 2Ax, 3Ax 2Yx, 3Yx
H H H
H L L
L X Z
H = High voltage level
L = Low voltage level
X = Don’t care
Z = High Impedance “off” state
1A0-1A3
2A0-2A3
3A0-3A3
Data inputs
4A0-4A3
1Y0-1Y3
2Y
0-2Y3
3Y0-3Y3
Data outputs
4Y0-4Y3
1OE, 2OE,
3OE, 4OE
Output enables
GND Ground (0V)
CC
Positive supply voltage
1998 Feb 13
3
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