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INTEGRATED CIRCUITS
74ALVT16244
2.5V/3.3V 16-bit buffer/driver (3-State)
Product specification
Supersedes data of 1998 Feb 13
IC23 Data Handbook
1998 Oct 07
Philips Semiconductors
Product specification
2.5V/3.3V 16-bit buffer/driver (3-State)
FEATURES
74ALVT16244
DESCRIPTION
• 16-bit bus interface
• 5V I/O compatibile
• 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
The 74ALVT16244 is a high-performance BiCMOS product
designed for VCC operation at 2.5V or 3.3V with I/O compatibility up
to 5V.
This device is a 16-bit buffer and line driver featuring non-inverting
3-State bus outputs. The device can be used as four 4-bit buffers,
two 8-bit buffers, or one 16-bit buffer.
resistors to hold unused inputs
• 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
QUICK REFERENCE DATA
SYMBOL
TYPICAL
CONDITIONS
Tamb = 25°C
PARAMETER
tPLH
tPHL
Propagation delay
nAx to nYx
CL = 50pF
UNIT
2.5V
3.3V
1.8
1.9
1.5
1.5
ns
pF
CIN
Input capacitance DIR, OE
VI = 0V or VCC
3
3
COut
Output capacitance
VI/O = 0V or VCC
9
9
pF
ICCZ
Total supply current
Outputs disabled
40
70
µA
ORDERING INFORMATION
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
DWG NUMBER
48-Pin Plastic SSOP Type III
PACKAGES
–40°C to +85°C
74ALVT16244 DL
AV16244 DL
SOT370-1
48-Pin Plastic TSSOP Type II
–40°C to +85°C
74ALVT16244 DGG
AV16244 DGG
SOT362-1
LOGIC SYMBOL
47
46
44
43
1A0
1A1
LOGIC SYMBOL (IEEE/IEC)
1Y0
1Y1
1A2
1Y2
1A3
1Y3
2
3
36
35
5
33
6
32
3A0
3A1
3Y0
3Y1
3A2
3Y2
3A3
3Y3
13
14
16
1OE
1
EN1
2OE
48
EN2
3OE
25
EN3
4OE
24
EN4
1A1
17
1A2
1
41
1OE
2A0
25
2Y0
8
30
3OE
4A0
1A3
4Y0
1A4
19
2A1
40
38
37
48
2A1
2A2
2A3
2OE
2Y1
2Y2
2Y3
9
29
11
27
12
26
24
4A1
4A2
4A3
4Y1
4Y2
4Y3
20
2A2
2A3
22
2A4
3A1
23
3A2
4OE
3A3
3A4
SA00014
4A1
4A2
4A3
4A4
47
2
1Y1
46
3
1Y2
44
5
1Y3
43
6
1Y4
8
2Y1
1
41
1
1∇
2∇
40
9
38
11
2Y3
37
12
2Y4
13
3Y1
35
14
3Y2
33
16
3Y3
32
17
3Y4
19
4Y1
29
20
4Y2
27
22
4Y3
26
23
36
30
1
1
3∇
4∇
2Y2
4Y4
SA00019
1998 Oct 07
2
853-1838 20144
Philips Semiconductors
Product specification
2.5V/3.3V 16-bit buffer/driver (3-State)
74ALVT16244
PIN CONFIGURATION
PIN DESCRIPTION
1OE
1
48
2OE
1Y0
2
47
1A0
1Y1
3
46
1A1
GND
4
45
GND
1Y2
5
44
1A2
1Y3
6
43
1A3
VCC
7
42
VCC
2Y0
8
41
2A0
2Y1
9
40
2A1
GND
10
39
GND
2Y2
11
38
2A2
2Y3
12
37
2A3
3Y0
13
36
3A0
3Y1
14
35
3A1
GND
15
34
GND
3Y2
16
33
3A2
3Y4
17
32
3A3
VCC
18
31
VCC
4Y0
19
30
4A0
4Y1
20
29
4A1
GND
21
28
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
VCC
Positive supply voltage
FUNCTION TABLE
INPUTS
OUTPUTS
nOE
nAx
nYx
L
L
L
GND
L
H
H
H
X
Z
4Y2
22
27
4A2
4Y3
23
26
4A3
4OE
24
25
3OE
H
L
X
Z
SA00013
= High voltage level
= Low voltage level
= Don’t care
= High Impedance “off” state
ABSOLUTE MAXIMUM RATINGS1, 2
SYMBOL
VCC
PARAMETER
CONDITIONS
DC supply voltage
IIK
DC input diode current
VI
DC input voltage3
IOK
DC output diode current
VOUT
DC output voltage3
IOUT
DC output
out ut current
Tstg
Storage temperature range
VI < 0
RATING
UNIT
-0.5 to +4.6
V
-50
mA
-0.5 to +7.0
V
VO < 0
-50
mA
Output in Off or High state
-0.5 to +7.0
V
Output in Low state
128
Output in High state
-64
-65 to +150
mA
°C
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.
1998 Oct 07
3
Philips Semiconductors
Product specification
2.5V/3.3V 16-bit buffer/driver (3-State)
74ALVT16244
RECOMMENDED OPERATING CONDITIONS
SYMBOL
VCC
2.5V RANGE LIMITS
PARAMETER
DC supply voltage
3.3V RANGE LIMITS
UNIT
MIN
MAX
MIN
MAX
2.3
2.7
3.0
3.6
V
0
5.5
0
5.5
V
VI
Input voltage
VIH
High-level input voltage
VIL
Input voltage
0.7
0.8
V
IOH
High-level output current
–8
–32
mA
Low-level output current
8
32
Low-level output current; current duty cycle ≤ 50%; f ≥ 1kHz
24
64
IOL
1.7
∆t/∆v
Input transition rise or fall rate; Outputs enabled
Tamb
Operating free-air temperature range
2.0
V
10
–40
+85
–40
mA
10
ns/V
+85
°C
DC ELECTRICAL CHARACTERISTICS (3.3V 0.3V RANGE)
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Temp = -40°C to +85°C
MIN
VIK
VOH
VOL
Input clamp voltage
output
High-level out
ut voltage
Low–level out
output
ut voltage
VCC = 3.0V; IIK = –18mA
VCC = 3.0 to 3.6V; IOH = –100µA
VCC = 3.0V; IOH = –32mA
Input
In
ut leakage current
IHOLD
Off current
Bus Hold current
Data inputs6
–0.85
–1.2
VCC–0.2
VCC
2.0
2.3
0.07
0.2
0.25
0.4
VCC = 3.0V; IOL = 32mA
0.3
0.5
VCC = 3.0V; IOL = 64mA
0.4
0.55
Control pins
VCC = 0 or 3.6V; VI = 5.5V
VCC = 3.6V; VI = VCC
Data pins
ins4
VCC = 0V; VI or VO = 0 to 4.5V
0.1
±1
01.
10
0.5
1
0.1
-5
0.1
±100
VCC = 3V; VI = 0.8V
75
130
VCC = 3V; VI = 2.0V
–75
–140
VCC = 0V to 3.6V; VCC = 3.6V
±500
UNIT
V
V
VCC = 3.0V; IOL = 16mA
VCC = 3.6V; VI = 0V
IOFF
MAX
VCC = 3.0V; IOL = 100µA
VCC = 3.6V; VI = VCC or GND
II
TYP1
V
µA
µA
µA
Current into an output in the
High state when VO > VCC
VO = 5.5V; VCC = 3.0V
10
125
µA
Power up/down 3-State output
current3
VCC ≤ 1.2V; VO = 0.5V to VCC; VI = GND or VCC
OE/OE = Don’t care
1
±100
µA
IOZH
3-State output High current
VCC = 3.6V; VO = 3.0V; VI = VIL or VIH
0.5
5
µA
IOZL
3-State output Low current
VCC = 3.6V; VO = 0.5V; VI = VIL or VIH
0.5
–5
µA
VCC = 3.6V; Outputs High, VI = GND or VCC, IO = 0
0.05
0.1
3.6
5
0.06
0.1
0.04
0.4
IEX
IPU/PD
ICCH
ICCL
Quiescent supply current
ICCZ
∆ICC
VCC = 3.6V; Outputs Low, VI = GND or VCC, IO = 0
VCC = 3.6V; Outputs Disabled; VI = GND or VCC, IO =
Additional supply current per
input pin2
VCC = 3V to 3.6V; One input at VCC–0.6V,
Other inputs at VCC or GND
05
mA
mA
NOTES:
1. All typical values are at VCC = 3.3V and Tamb = 25°C.
2. This is the increase in supply current for each input at the specified voltage level other than VCC or GND
3. This parameter is valid for any VCC between 0V and 1.2V with a transition time of up to 10msec. From VCC = 1.2V to VCC = 3.3V ± 0.3V a
transition time of 100µsec is permitted. This parameter is valid for Tamb = 25°C only.
4. Unused pins at VCC or GND.
5. ICCZ is measured with outputs pulled up to VCC or pulled down to ground.
6. This is the bus hold overdrive current required to force the input to the opposite logic state.
1998 Oct 07
4
Philips Semiconductors
Product specification
2.5V/3.3V 16-bit buffer/driver (3-State)
74ALVT16244
AC CHARACTERISTICS (3.3V 0.3V RANGE)
GND = 0V; tR = tF = 2.5ns; CL = 50pF; RL = 500Ω; Tamb = –40°C to +85°C.
LIMITS
SYMBOL
PARAMETER
VCC = 3.3V 0.3V
WAVEFORM
UNIT
MIN
TYP1
MAX
1.5
1.5
2.4
2.5
ns
tPLH
tPHL
Propagation delay
nAx to nYx
1
0.8
0.8
tPZH
tPZL
Output enable time
to High and Low level
2
1.0
0.5
2.3
1.8
3.8
2.9
ns
tPHZ
tPLZ
Output disable time
from High and Low Level
2
1.5
1.5
2.7
2.3
4.2
3.6
ns
NOTE:
1. All typical values are at VCC = 3.3V and Tamb = 25°C.
DC ELECTRICAL CHARACTERISTICS (2.5V 0.2V RANGE)
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Temp = -40°C to +85°C
MIN
VIK
Input clamp voltage
VOH
High-level out
output
ut voltage
VOL
output
Low-level out
ut voltage
VCC = 2.3V; IIK = –18mA
VCC = 2.3 to 2.7V; IOH = –100µA
VCC = 2.3V; IOH = –8mA
Input
In
ut leakage current
MAX
–0.85
–1.2
VCC–0.2
VCC
1.8
2.5
0.07
0.2
VCC = 2.3V; IOL = 24mA
0.3
0.5
0.1
±1
VCC = 0 or 2.7V; VI = 5.5V
0.1
10
VCC = 2.7V; VI = VCC
0.1
1
Control pins
Data pins
ins4
VCC = 2.7V; VI = 0
UNIT
V
V
VCC = 2.3V; IOL = 100µA
VCC = 2.7V; VI = VCC or GND
II
TYP1
µA
0.1
-5
Off current
VCC = 0V; VI or VO = 0 to 4.5V
0.1
±100
Bus Hold current
VCC = 2.3V; VI = 0.7V
115
Data inputs6
VCC = 2.3V; VI = 1.7V
–10
Current into an output in the
High state when VO > VCC
VO = 5.5V; VCC = 2.3V
10
125
µA
Power up/down 3-State output
current3
VCC ≤ 1.2V; VO = 0.5V to VCC; VI = GND or VCC;
OE/OE = Don’t care
1
±100
µA
IOZH
3-State output High current
VCC = 2.7V; VO = 2.3V; VI = VIL or VIH
0.5
5
µA
IOZL
3-State output Low current
VCC = 2.7V; VO = 0.5V; VI = VIL or VIH
0.5
–5
µA
VCC = 2.7V; Outputs High, VI = GND or VCC, IO = 0
0.04
0.1
VCC = 2.7V; Outputs Low, VI = GND or VCC, IO = 0
2.5
4.5
VCC = 2.7V; Outputs Disabled; VI = GND or VCC, IO = 05
0.04
0.1
VCC = 2.3V to 2.7V; One input at VCC–0.6V,
Other inputs at VCC or GND
0.04
0.4
IOFF
IHOLD
IEX
IPU/PD
ICCH
ICCL
Quiescent supply current
ICCZ
∆ICC
Additional supply current per
input pin2
µA
µA
mA
mA
NOTES:
1. All typical values are at VCC = 2.5V and Tamb = 25°C.
2. This is the increase in supply current for each input at the specified voltage level other than VCC or GND
3. This parameter is valid for any VCC between 0V and 1.2V with a transition time of up to 10msec. From VCC = 1.2V to VCC = 2.5V ± 0.2V a
transition time of 100µsec is permitted. This parameter is valid for Tamb = 25°C only.
4. Unused pins at VCC or GND.
5. ICCZ is measured with outputs pulled up to VCC or pulled down to ground.
6. Not guaranteed.
1998 Oct 07
5
Philips Semiconductors
Product specification
2.5V/3.3V 16-bit buffer/driver (3-State)
74ALVT16244
AC CHARACTERISTICS (2.5V "0.2V RANGE)
GND = 0V; tR = tF = 2.5ns; CL = 50pF; RL = 500Ω; Tamb = –40°C to +85°C.
LIMITS
SYMBOL
PARAMETER
VCC = 2.5V "0.2V
WAVEFORM
UNIT
MIN
TYP1
MAX
tPLH
tPHL
Propagation delay
nAx to nYx
1
1.0
1.0
1.8
1.9
3.0
3.5
ns
tPZH
tPZL
Output enable time
to High and Low level
2
2.0
1.5
3.1
2.5
5.9
4.7
ns
tPHZ
tPLZ
Output disable time
from High and Low Level
2
1.5
1.0
2.7
2.0
4.4
3.4
ns
NOTE:
1. All typical values are at VCC = 2.5V and Tamb = 25°C.
AC WAVEFORMS
VM = 1.5V at VCC w 3.0V; VM = VCC/2 at VCC v 2.7V
VX = VOL + 0.3V at VCC w 3.0V; VX = VOL + 0.15V at VCC v 2.7V
VY = VOH – 0.3V at VCC w 3.0V; VY = VOH – 0.15V at VCC v 2.7V
nOE
INPUT
3.0V or VCC,
whichever is less
nAx INPUT
VM
3.0V or VCC
whichever is
less
VM
VM
0V
tPZL
VM
tPLZ
3.0V or
VCC
0V
VM
nYx
OUTPUT
tPHL
tPLH
VX
VOH
tPHZ
tPZH
nYx OUTPUT
VM
VOL
VOH
VM
nYx
OUTPUT
VOL
VM
VY
0V
SW00204
SW00160
Waveform 1.
1998 Oct 07
Waveform 2. 3-State Output Enable and Disable Times
Input (nAx) to Output (nYx) Propagation Delays
6
Philips Semiconductors
Product specification
2.5V/3.3V 16-bit buffer/driver (3-State)
74ALVT16244
TEST CIRCUIT AND WAVEFORMS
6V or
VCC x 2
VCC
OPEN
VIN
VOUT
PULSE
GENERATOR
RL
GND
tW
90%
CL
10%
10%
0V
RL
tTHL (tF)
tTLH (tR)
tTLH (tR)
tTHL (tF)
90%
POSITIVE
PULSE
Test Circuit for 3-State Outputs
VM
GND
tPLZ/tPZL
6V or VCC x 2
tPLH/tPHL
open
10%
0V
VM = 1.5V or VCC / 2, whichever is less
Input Pulse Definition
INPUT PULSE REQUIREMENTS
DEFINITIONS
FAMILY
RL = Load resistor; see AC CHARACTERISTICS for value.
CL = Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
VM
tW
SWITCH
tPHZ/tPZH
AMP (V)
90%
10%
SWITCH POSITION
TEST
AMP (V)
VM
VM
NEGATIVE
PULSE
D.U.T.
RT
90%
74ALVT16
RT = Termination resistance should be equal to ZOUT of
pulse generators.
Amplitude
Rep. Rate
tW
tR
3.0V or VCC
whichever
is less
≤10MHz
500ns
≤2.5ns
tF
≤2.5ns
SW00162
1998 Oct 07
7
Philips Semiconductors
Product specification
2.5V/3.3V 16-bit buffer/driver (3-State)
74ALVT16244
SSOP48: plastic shrink small outline package; 48 leads; body width 7.5 mm
1998 Oct 07
8
SOT370-1
Philips Semiconductors
Product specification
2.5V/3.3V 16-bit buffer/driver (3-State)
74ALVT16244
TSSOP48: plastic thin shrink small outline package; 48 leads; body width 6.1mm
1998 Oct 07
9
SOT362-1
Philips Semiconductors
Product specification
2.5V/3.3V 16-bit buffer/driver (3-State)
74ALVT16244
Data sheet status
Data sheet
status
Product
status
Definition [1]
Objective
specification
Development
This data sheet contains the design target or goal specifications for product development.
Specification may change in any manner without notice.
Preliminary
specification
Qualification
This data sheet contains preliminary data, and supplementary data will be published at a later date.
Philips Semiconductors reserves the right to make chages at any time without notice in order to
improve design and supply the best possible product.
Product
specification
Production
This data sheet contains final specifications. Philips Semiconductors reserves the right to make
changes at any time without notice in order to improve design and supply the best possible product.
[1] Please consult the most recently issued datasheet before initiating or completing a design.
Definitions
Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For
detailed information see the relevant data sheet or data handbook.
Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one
or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or
at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended
periods may affect device reliability.
Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips
Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or
modification.
Disclaimers
Life support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications
do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.
Right to make changes — Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard
cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no
responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless
otherwise specified.
Copyright Philips Electronics North America Corporation 1998
All rights reserved. Printed in U.S.A.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
print code
Document order number:
yyyy mmm dd
10
Date of release: 05-96
9397-750-04711
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