INTEGRATED CIRCUITS
74ALVT162241
2.5V/3.3V 16-bit buffer/driver with 30W
termination resistors (3-State)
Product specification
Supersedes data of 1997 Dec 16
IC23 Data Handbook
1998 Feb 13
Philips
Semiconductors
Philips Semiconductors
Product specification
2.5V/3.3V 16-bit buffer/driver with
30W termination resistors (3-State)
74ALVT162241
FEATURES
•
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
•
Outputs include series resistance of 30W making external
•
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
termination resistors unnecessary
resistors to hold unused inputs
DESCRIPTION
The 74ALVT162241 is a high-performance BiCMOS product designed
for V
CC
operation at 2.5V or 3.3V with I/O compatibility up to 5V.
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.
The 74ALVT162241 is designed with 30W 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.
QUICK REFERENCE DATA
SYMBOL
t
PLH
t
PHL
C
IN
C
Out
I
CCZ
PARAMETER
Propagation delay
nAx to nYx
Input capacitance nOE
Output pin capacitance
Total supply current
C
L
= 50pF
V
I
= 0V or V
CC
V
I/O
= 0V or V
CC
Outputs disabled
CONDITIONS
T
amb
= 25°C
TYPICAL
2.5V
3.1
2.3
3
9
40
3.3V
2.2
2.0
3
9
70
UNIT
ns
pF
pF
µA
ORDERING INFORMATION
PACKAGES
48-Pin Plastic SSOP Type III
48-Pin Plastic TSSOP Type II
TEMPERATURE RANGE
–40°C to +85°C
–40°C to +85°C
OUTSIDE NORTH AMERICA
74ALVT162241 DL
74ALVT162241 DGG
NORTH AMERICA
AV162241 DL
AV162241 DGG
DWG NUMBER
SOT370-1
SOT362-1
LOGIC SYMBOL
47
46
44
43
1
41
40
38
37
48
1A0
1A1
1A2
1A3
1OE
2A0
2A1
2A2
2A3
2OE
2Y0
2Y1
2Y2
2Y3
1Y0
1Y1
1Y2
1Y3
2
3
5
6
36
35
33
32
25
8
9
11
12
30
29
27
26
24
3A0
3A1
3A2
3A3
3OE
3Y0
3Y1
3Y2
3Y3
13
SCHEMATIC OF EACH OUTPUT
V
CC
V
CC
14
16
17
27Ω
OUTPUT
27Ω
4A0
4A1
4A2
4A3
4OE
4Y0
4Y1
4Y2
4Y3
19
20
22
SW00007
23
SA00405
1998 Feb 13
2
853-2042 18960
Philips Semiconductors
Product specification
2.5V/3.3V 16-bit buffer/driver with
30W termination resistors (3-State)
74ALVT162241
PIN CONFIGURATION
1OE
1Y0
1Y1
GND
1Y2
1Y3
V
CC
2Y0
2Y1
GND
2Y2
2Y3
3Y0
3Y1
GND
3Y2
3Y4
V
CC
4Y0
4Y1
GND
4Y2
4Y3
4OE
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
2OE
1A0
1A1
GND
1A2
1A3
V
CC
2A0
2A1
GND
2A2
2A3
3A0
3A1
GND
3A2
3A3
V
CC
4A0
4A1
GND
4A2
4A3
3OE
PIN DESCRIPTION
PIN NUMBER
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
SYMBOL
1A0-1A3
2A0-2A3
3A0-3A3
4A0-4A3
1Y0-1Y3
2Y0-2Y3
3Y0-3Y3
4Y0-4Y3
1OE, 2OE,
3OE, 4OE
GND
V
CC
NAME AND FUNCTION
Data inputs
Data outputs
Output enables
Ground (0V)
Positive supply voltage
FUNCTION TABLE
Inputs
1OE, 4OE
1Ax, 4Ax
L
H
L
L
H
X
Inputs
2OE, 3OE
2Ax, 3Ax
H
H
H
L
L
X
H = High voltage level
L = Low voltage level
X = Don’t care
Z = High Impedance “off ” state
Outputs
1Yx, 4Yx
H
L
Z
Outputs
2Yx, 3Yx
H
L
Z
SA00407
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
1
40
38
37
36
35
33
32
30
29
27
26
1
4
∇
1
3
∇
2
∇
EN1
EN2
EN3
EN4
1
1
∇
2
3
5
6
8
9
11
12
13
14
16
17
19
20
22
23
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
3Y1
3Y2
3Y3
3Y4
4Y1
4Y2
4Y3
4Y4
SA00406
1998 Feb 13
3
Philips Semiconductors
Product specification
2.5V/3.3V 16-bit buffer/driver with
30W termination resistors (3-State)
74ALVT162241
ABSOLUTE MAXIMUM RATINGS
1, 2
SYMBOL
V
CC
I
IK
V
I
I
OK
V
OUT
I
OUT
T
stg
PARAMETER
DC supply voltage
DC input diode current
DC input
voltage
3
V
O
< 0
Output in Off or High state
Output in Low state
Output in High state
voltage
3
DC output diode current
DC output
V
I
< 0
CONDITIONS
RATING
-0.5 to +4.6
-50
-0.5 to +7.0
-50
-0.5 to +7.0
128
-64
-65 to +150
UNIT
V
mA
V
mA
V
mA
°C
DC output current
out ut
Storage temperature range
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 negative voltage ratings may be exceeded if the input and output clamp current ratings are observed.
RECOMMENDED OPERATING CONDITIONS
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
Input voltage
High-level output current
Low-level out ut current
output
Input transition rise or fall rate; Outputs enabled
Operating free-air temperature range
–40
PARAMETER
2.5V RANGE LIMITS
MIN
2.3
0
1.7
0.7
–8
12
10
+85
–40
MAX
2.7
5.5
3.3V RANGE LIMITS
MIN
3.0
0
2.0
0.8
–12
12
10
+85
MAX
3.6
5.5
UNIT
V
V
V
V
mA
mA
ns/V
°C
1998 Feb 13
4
Philips Semiconductors
Product specification
2.5V/3.3V 16-bit buffer/driver with
30W termination resistors (3-State)
DC ELECTRICAL CHARACTERISTICS (3.3V
"0.3V
RANGE)
74ALVT162241
LIMITS
SYMBOL
V
IK
V
OH
V
OL
PARAMETER
Input clamp voltage
High-level out ut voltage
output
Low–level out ut voltage
output
g
TEST CONDITIONS
V
CC
= 3.0V; I
IK
= –18mA
V
CC
= 3 0V; I
OH
= –12mA
3.0V;
V
CC
= 3 0V; I
OL
= 12mA
3.0V;
V
CC
= 3.6V; V
I
= V
CC
or GND
I
I
Input leakage current
V
CC
= 0 or 3.6V; V
I
= 5.5V
V
CC
= 3 6V; V
I
= V
CC
3.6V;
V
CC
= 3.6V; V
I
= 0
I
OFF
I
HOLD
Off current
Bus Hold current
Data inputs
6
Current into an output in the
High state when V
O
> V
CC
Power up/down 3-State output
current
3
3-State output High current
3-State output Low current
Quiescent supply current
Additional supply current per
input pin
2
V
CC
= 0V; V
I
or V
O
= 0 to 4.5V
V
CC
= 3.0V; V
I
= 0.8V
V
CC
= 3.0V; V
I
= 2.0V
V
CC
= 0V to 3.6V; V
CC
= 3.6V
V
O
= 5.5V; V
CC
= 3.0V
V
CC
≤
1.2V; V
O
= 0.5V to V
CC
; V
I
= GND or V
CC
OE/OE = Don’t care
V
CC
= 3.6V; V
O
= 3.0V; V
I
= V
IL
or V
IH
V
CC
= 3.6V; V
O
= 0.5V; V
I
= V
IL
or V
IH
V
CC
= 3.6V; Outputs High, V
I
= GND or V
CC,
I
O =
0
V
CC
= 3.6V; Outputs Low, V
I
= GND or V
CC,
I
O =
0
V
CC
= 3.6V; Outputs Disabled; V
I
= GND or V
CC,
I
O =
0
5
V
CC
= 3V to 3.6V; One input at V
CC
–0.6V,
Other inputs at V
CC
or GND
75
–75
±500
10
1
0.5
0.5
0.07
3.5
0.07
0.04
125
±100
5
–5
0.1
7
0.1
0.4
mA
mA
µA
µA
µA
µA
Data pins
4
ins
Control pins
20
2.0
Temp = -40°C to +85°C
MIN
TYP
1
–0.85
23
2.3
05
0.5
0.1
0.1
0.5
05
0.1
0.1
130
200
µA
08
0.8
±1
10
1
-5
±100
MAX
–1.2
V
V
V
µA
µA
µA
µA
UNIT
I
EX
I
PU/PD
I
OZH
I
OZL
I
CCH
I
CCL
I
CCZ
∆I
CC
NOTES:
1. All typical values are at V
CC
= 3.3V and T
amb
= 25°C.
2. This is the increase in supply current for each input at the specified voltage level other than V
CC
or GND
3. This parameter is valid for any V
CC
between 0V and 1.2V with a transition time of up to 10msec. From V
CC
= 1.2V to V
CC
= 3.3V
±
0.3V a
transition time of 100µsec is permitted. This parameter is valid for T
amb
= 25°C only.
4. Unused pins at V
CC
or GND.
5. I
CCZ
is measured with outputs pulled up to V
CC
or pulled down to ground.
6. This is the bus hold overdrive current required to force the input to the opposite logic state.
AC CHARACTERISTICS (3.3V
"0.3V
RANGE)
GND = 0V; t
R
= t
F
= 2.5ns; C
L
= 50pF; R
L
= 500Ω; T
amb
= –40°C to +85°C.
LIMITS
SYMBOL
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
PARAMETER
Propagation delay
nAx to nYx
Output enable time
to High and Low level
Output disable time
from High and Low Level
WAVEFORM
MIN
1
2
2
0.5
0.5
1.0
0.5
1.5
1.0
V
CC
= 3.3V
"0.3V
TYP
1
2.2
2.0
3.9
2.6
4.1
2.9
MAX
3.6
3.0
5.8
4.0
6.6
5.3
ns
ns
ns
UNIT
NOTE:
1. All typical values are at V
CC
= 3.3V and T
amb
= 25°C.
1998 Feb 13
5
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
