Philips Semiconductors
Product specification
74ALVT162827
2.5V/3.3V 20-bit buffer/line driver, non-inverting,
with 30
termination resistors (3-State)
2
1998 Feb 13
853-1843 18961
FEATURES
Multiple V
CC
and GND pins minimize switching noise
5V I/O Compatible
Live insertion/extraction permitted
3-State output buffers
Outputs include series resistance of 30
making external
termination resistors unnecessary
Power-up 3-State
Output capability: +12mA/12mA
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
Bus hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs
DESCRIPTION
The 74ALVT162827 high-performance BiCMOS device combines
low static and dynamic power dissipation with high speed and high
output drive. It is designed for V
CC
operation at 2.5V or 3.3V with I/O
compatibility to 5V.
The 74ALVT162827 20-bit buffers provide high performance bus
interface buffering for wide data/address paths or buses carrying
parity. They have NOR Output Enables (nOE1, nOE2) for maximum
control flexibility.
The 74ALVT162827 is designed with 30
series resistance in both
the pull-up and pull-down output structures. This design reduces line
noise in applications such as memory address drivers, clock drivers
and bus receivers/transmitters.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
SYMBOL
PARAMETER
T
amb
= 25
C
2.5V
3.3V
UNIT
t
PLH
t
PHL
Propagation delay
nAx to nBx or nBx to nAx
C
L
= 50pF
2.7
2.3
2.2
2.0
ns
C
IN
Input capacitance DIR, OE
V
I
= 0V or V
CC
3
3
pF
C
Out
Output capacitance
V
I/O
= 0V or V
CC
9
9
pF
I
CCZ
Total supply current
Outputs disabled
40
70
A
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
DWG NUMBER
56-Pin Plastic SSOP Type III
40
C to +85
C
74ALVT162827 DL
AV162827 DL
SOT371-1
56-Pin Plastic TSSOP Type II
40
C to +85
C
74ALVT162827 DGG
AV162827 DGG
SOT364-1
PIN DESCRIPTION
PIN NUMBER
SYMBOL
FUNCTION
55, 54, 52, 51, 49, 48, 47, 45, 44, 43,
42, 41, 40, 38, 37, 36, 34, 33, 31, 30
1A0 - 1A9
2A0 - 2A9
Data inputs
2, 3, 5, 6, 8, 9, 10, 12, 13, 14,
15, 16, 17, 19, 20, 21, 23, 24, 26, 27
1Y0 - 1Y9
2Y0 - 2Y9
Data outputs
1, 56,
28, 29
1OE0, 1OE1
2OE0, 2OE1
Output enable inputs (active-Low)
4, 11, 18, 25, 32, 39, 46, 53
GND
Ground (0V)
7, 22, 35, 50
V
CC
Positive supply voltage
Philips Semiconductors
Product specification
74ALVT162827
2.5V/3.3V 20-bit buffer/line driver, non-inverting,
with 30
termination resistors (3-State)
1998 Feb 13
4
LOGIC DIAGRAM
nA0
nY0
nOE0
nA1
nY1
nA2
nY2
nA3
nY3
nA4
nY4
nA5
nY5
nA6
nY6
nA7
nY7
nA8
nY8
nA9
nY9
nOE1
SH00013
ABSOLUTE MAXIMUM RATINGS
1, 2
SYMBOL
PARAMETER
CONDITIONS
RATING
UNIT
V
CC
DC supply voltage
-0.5 to +7.0
V
I
IK
DC input diode current
V
I
< 0
-18
mA
V
I
DC input voltage
3
-1.2 to +7.0
V
I
OK
DC output diode current
V
O
< 0
-50
mA
V
OUT
DC output voltage
3
output in Off or High state
-0.5 to +5.5
V
I
OUT
DC output current
output in Low state
128
mA
T
stg
Storage temperature range
-65 to 150
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 voltage ratings may be exceeded if the input and output current ratings are observed.
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
2.5V RANGE LIMITS
3.3V RANGE LIMITS
UNIT
SYMBOL
PARAMETER
MIN
MAX
MIN
MAX
UNIT
V
CC
DC supply voltage
2.3
2.7
3.0
3.6
V
V
I
Input voltage
0
5.5
0
5.5
V
V
IH
High-level input voltage
1.7
2.0
V
V
IL
Input voltage
0.7
0.8
V
I
OH
High-level output current
8
12
mA
I
OL
Low-level output current
12
12
mA
t/
v
Input transition rise or fall rate; Outputs enabled
10
10
ns/V
T
amb
Operating free-air temperature range
40
+85
40
+85
C
Philips Semiconductors
Product specification
74ALVT162827
2.5V/3.3V 20-bit buffer/line driver, non-inverting,
with 30
termination resistors (3-State)
1998 Feb 13
5
DC ELECTRICAL CHARACTERISTICS (3.3V
"
0.3V RANGE)
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Temp = -40
C to +85
C
UNIT
MIN
TYP
1
MAX
V
IK
Input clamp voltage
V
CC
= 3.0V; I
IK
= 18mA
0.85
1.2
V
V
OH
High-level output voltage
V
CC
= 3.0V; I
OH
= 12mA
2.0
2.3
V
V
OL
Lowlevel output voltage
V
CC
= 3.0V; I
OL
= 12mA
0.5
0.8
V
V
CC
= 3.6V; V
I
= V
CC
or GND
Control pins
0.1
1
V
CC
= 0 or 3 6V; V
I
= 5 5V
0 1
10
I
I
Input leakage current
V
CC
= 0 or 3.6V; V
I
= 5.5V
0.1
10
A
I
I
In ut leakage current
V
CC
= 3 6V; V
I
= V
CC
4
0 5
1
A
V
CC
= 3.6V; V
I
= V
CC
Data pins
4
0.5
1
V
CC
= 3.6V; V
I
= 0
Data ins
4
0.1
-5
I
OFF
Off current
V
CC
= 0V; V
I
or V
O
= 0 to 4.5V
0.1
100
A
Bus Hold current
V
CC
= 3V; V
I
= 0.8V
75
130
A
I
HOLD
Bus Hold current
Data inputs
6
V
CC
= 3V; V
I
= 2.0V
75
140
A
Data in uts
V
CC
= 0V to 3.6V; V
CC
= 3.6V
500
A
I
EX
Current into an output in the
High state when V
O
> V
CC
V
O
= 5.5V; V
CC
= 3.0V
10
125
A
I
PU/PD
Power up/down 3-State output
current
3
V
CC
1.2V; V
O
= 0.5V to V
CC
; V
I
= GND or V
CC
OE/OE = Don't care
1
100
A
I
OZH
3-State output High current
V
CC
= 3.6V; V
O
= 3.0V; V
I
= V
IL
or V
IH
0.5
5
A
I
OZL
3-State output Low current
V
CC
= 3.6V; V
O
= 0.5V; V
I
= V
IL
or V
IH
0.5
5
A
I
CCH
V
CC
= 3.6V; Outputs High, V
I
= GND or V
CC,
I
O =
0
0.07
0.1
I
CCL
Quiescent supply current
V
CC
= 3.6V; Outputs Low, V
I
= GND or V
CC,
I
O =
0
3.9
5.5
mA
I
CCZ
V
CC
= 3.6V; Outputs Disabled; V
I
= GND or V
CC,
I
O =
0
5
0.07
0.1
I
CC
Additional supply current per
input pin
2
V
CC
= 3V to 3.6V; One input at V
CC
0.6V,
Other inputs at V
CC
or GND
0.04
0.4
mA
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 100
sec 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
= 500
LIMITS
SYMBOL
PARAMETER
WAVEFORM
T
amb
= -40 to +85
o
C
V
CC
= +3.3V
0.3V
UNIT
MIN
TYP
MAX
t
PLH
t
PHL
Propagation delay
nAx to nYx
1
1.0
1.0
2.2
2.0
3.3
3.0
ns
t
PZH
t
PZL
Output enable time
to High and Low level
2
1.5
1.0
3.4
2.4
5.6
3.7
ns
t
PHZ
t
PLZ
Output disable time
from High and Low level
2
1.5
1.0
3.4
2.7
5.2
4.5
ns
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