Philips Semiconductors
Product specification
2.5V/3.3V 20-bit buffer/line driver, non-inverting,
with 30Ω termination resistors (3-State)
74ALVT162827
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 30Ω making external
•
•
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
termination resistors unnecessary
Power-up 3-State
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 30Ω 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.
•
Bus hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs
QUICK REFERENCE DATA
SYMBOL
t
PLH
t
PHL
C
IN
C
Out
I
CCZ
PARAMETER
Propagation delay
nAx to nBx or nBx to nAx
Input capacitance DIR, OE
Output capacitance
Total supply current
CONDITIONS
T
amb
= 25°C
C
L
= 50pF
V
I
= 0V or V
CC
V
I/O
= 0V or V
CC
Outputs disabled
TYPICAL
UNIT
2.5V
2.7
2.3
3
9
40
3.3V
2.2
2.0
3
9
70
ns
pF
pF
µA
ORDERING INFORMATION
PACKAGES
56-Pin Plastic SSOP Type III
56-Pin Plastic TSSOP Type II
TEMPERATURE RANGE
–40°C to +85°C
–40°C to +85°C
OUTSIDE NORTH AMERICA
74ALVT162827 DL
74ALVT162827 DGG
NORTH AMERICA
AV162827 DL
AV162827 DGG
DWG NUMBER
SOT371-1
SOT364-1
PIN DESCRIPTION
PIN NUMBER
55, 54, 52, 51, 49, 48, 47, 45, 44, 43,
42, 41, 40, 38, 37, 36, 34, 33, 31, 30
2, 3, 5, 6, 8, 9, 10, 12, 13, 14,
15, 16, 17, 19, 20, 21, 23, 24, 26, 27
1, 56,
28, 29
4, 11, 18, 25, 32, 39, 46, 53
7, 22, 35, 50
SYMBOL
1A0 - 1A9
2A0 - 2A9
1Y0 - 1Y9
2Y0 - 2Y9
1OE0, 1OE1
2OE0, 2OE1
GND
V
CC
Data inputs
Data outputs
Output enable inputs (active-Low)
Ground (0V)
Positive supply voltage
FUNCTION
1998 Feb 13
2
853-1843 18961
Philips Semiconductors
Product specification
2.5V/3.3V 20-bit buffer/line driver, non-inverting,
with 30Ω termination resistors (3-State)
74ALVT162827
LOGIC DIAGRAM
nA0
nA1
nA2
nA3
nA4
nA5
nA6
nA7
nA8
nA9
nOE0
nOE1
nY0
nY1
nY2
nY3
nY4
nY5
nY6
nY7
nY8
nY9
SH00013
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
DC output diode current
DC output voltage
3
DC output current
Storage temperature range
V
O
< 0
output in Off or High state
output in Low state
V
I
< 0
CONDITIONS
RATING
-0.5 to +7.0
-18
-1.2 to +7.0
-50
-0.5 to +5.5
128
-65 to 150
UNIT
V
mA
V
mA
V
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 voltage ratings may be exceeded if the input and output current ratings are observed.
RECOMMENDED OPERATING CONDITIONS
2.5V RANGE LIMITS
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 output current
Input transition rise or fall rate; Outputs enabled
Operating free-air temperature range
–40
PARAMETER
MIN
2.3
0
1.7
0.7
–8
12
10
+85
–40
MAX
2.7
5.5
MIN
3.0
0
2.0
0.8
–12
12
10
+85
MAX
3.6
5.5
V
V
V
V
mA
mA
ns/V
°C
3.3V RANGE LIMITS
UNIT
1998 Feb 13
4
Philips Semiconductors
Product specification
2.5V/3.3V 20-bit buffer/line driver, non-inverting,
with 30Ω termination resistors (3-State)
DC ELECTRICAL CHARACTERISTICS (3.3V
"0.3V
RANGE)
74ALVT162827
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Temp = -40°C to +85°C
MIN
V
IK
V
OH
V
OL
Input clamp voltage
High-level output voltage
Low–level output voltage
V
CC
= 3.0V; I
IK
= –18mA
V
CC
= 3.0V; I
OH
= –12mA
V
CC
= 3.0V; I
OL
= 12mA
V
CC
= 3.6V; V
I
= V
CC
or GND
I
I
Input leakage current
In ut
V
CC
= 0 or 3.6V; V
I
= 5 5V
3 6V;
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 in uts
6
inputs
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
V
CC
= 0V; V
I
or V
O
= 0 to 4.5V
V
CC
= 3V; V
I
= 0.8V
V
CC
= 3V; V
I
= 2.0V
V
CC
= 0V to 3.6V; V
CC
= 3.6V
I
EX
I
PU/PD
I
OZH
I
OZL
I
CCH
I
CCL
I
CCZ
∆I
CC
Additional supply current per
input pin
2
Quiescent supply current
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
3.9
0.07
0.04
125
±100
5
–5
0.1
5.5
0.1
0.4
mA
mA
Data pins
4
ins
Control pins
2.0
TYP
1
–0.85
2.3
0.5
0.1
0.1
01
0.5
05
0.1
0.1
130
–140
0.8
±1
10
1
-5
±100
µA
µA
µA
µA
µA
µA
µA
µA
µA
MAX
–1.2
V
V
V
UNIT
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
LIMITS
SYMBOL
PARAMETER
WAVEFORM
MIN
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Propagation delay
nAx to nYx
Output enable time
to High and Low level
Output disable time
from High and Low level
1
2
2
1.0
1.0
1.5
1.0
1.5
1.0
T
amb
= -40 to +85
o
C
V
CC
= +3.3V
±0.3V
TYP
2.2
2.0
3.4
2.4
3.4
2.7
MAX
3.3
3.0
5.6
3.7
5.2
4.5
ns
ns
ns
UNIT
1998 Feb 13
5
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