Philips Semiconductors
Product specification
74ABT162827A
74ABTH162827A
20-bit buffer/line driver, non-inverting,
with 30
W
termination resistors (3-State)
2
1998 Feb 27
853-1928 19025
FEATURES
Multiple V
CC
and GND pins minimize switching noise
Live insertion/extraction permitted
3-State output buffers
Power-up 3-State
74ABTH162827A incorporates bus-hold data inputs which
eliminate the need for external pull-up resistors to hold unused
inputs
Output capability: +64mA/-32mA
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
DESCRIPTION
The 74ABT162827A high-performance BiCMOS device combines
low static and dynamic power dissipation with high speed and high
output drive.
The 74ABT162827A 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 74ABT162827A is designed with 30
W
series resistance in both
the pullup and pulldown output structures. This design reduces
line noise in applications such as memory address drivers, clock
drivers and bus receivers/transmitters.
Two options are available, 74ABT162827A which does not have the
bus-hold feature and 74ABTH162827A which incorporates the
bus-hold feature.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
T
amb
= 25
C; GND = 0V
TYPICAL
UNIT
t
PLH
t
PHL
Propagation delay
nAx to nYx
C
L
= 50pF; V
CC
= 5V
1.8
1.9
ns
C
IN
Input capacitance
V
I
= 0V or V
CC
4
pF
C
OUT
Output capacitance
V
O
= 0V or V
CC
; 3-State
6
pF
I
CCZ
Quiescent supply current
Outputs disabled; V
CC
= 5.5V
500
A
I
CCL
Quiescent su
ly current
Outputs Low; V
CC
= 5.5V
9
mA
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
DWG NUMBER
56-Pin Plastic SSOP Type III
40
C to +85
C
74ABT162827A DL
BT162827A DL
SOT371-1
56-Pin Plastic TSSOP Type II
40
C to +85
C
74ABT162827A DGG
BT162827A DGG
SOT364-1
56-Pin Plastic SSOP Type III
40
C to +85
C
74ABTH162827A DL
BH162827A DL
SOT371-1
56-Pin Plastic TSSOP Type II
40
C to +85
C
74ABTH162827A DGG
BH162827A 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
74ABT162827A
74ABTH162827A
20-bit buffer/line driver, non-inverting,
with 30
W
termination resistors (3-State)
1998 Feb 27
4
SCHEMATIC OF Y OUTPUTS
V
CC
GND
OUTPUT
SA00042
27
27
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
O
DC output current
Output in Low state
128
mA
I
OUT
DC output current
Output in High state
64
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.
Philips Semiconductors
Product specification
74ABT162827A
74ABTH162827A
20-bit buffer/line driver, non-inverting,
with 30
W
termination resistors (3-State)
1998 Feb 27
5
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
LIMITS
UNIT
SYMBOL
PARAMETER
MIN
MAX
UNIT
V
CC
DC supply voltage
4.5
5.5
V
V
I
Input voltage
0
V
CC
V
V
IH
High-level input voltage
2.0
V
V
IL
Low-level Input voltage
0.8
V
I
OH
High-level output current
32
mA
I
OL
Low-level output current
12
mA
t/
v
Input transition rise or fall rate
0
10
ns/V
T
amb
Operating free-air temperature range
40
+85
C
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
T
amb
= +25
C
T
amb
= -40
C
to +85
C
UNIT
MIN
TYP
MAX
MIN
MAX
V
IK
Input clamp voltage
V
CC
= 4.5V; I
IK
= -18mA
0.9
1.2
1.2
V
V
CC
= 4.5V; I
OH
= -3mA; V
I
= V
IL
or V
IH
2.5
3.1
2.5
V
V
OH
High-level output voltage
V
CC
= 5.0V; I
OH
= -3mA; V
I
= V
IL
or V
IH
3.0
3.6
3.0
V
V
CC
= 4.5V; I
OH
= -32mA; V
I
= V
IL
or V
IH
2.0
2.7
2.0
V
V
O
Low level output voltage
V
CC
= 4.5V; I
OH
= 8mA; V
l
= V
IL
or V
IN
0.65
0.65
V
V
OL
Low-level output voltage
V
CC
= 4.5V; I
OL
= 12mA; V
I
= V
IL
0.80
0.80
V
I
I
Input leakage current
V
CC
= 5.5V; V
I
= GND or 5.5V
0.01
1.0
1.0
A
V
CC
= 5.5V; V
I
= 5.5V
0.01
1
1
A
I
I
Input leakage current
74ABTH162827A
V
CC
= 5.5V; V
I
= V
CC
or GND
Control
pins
0.01
1
1
A
I
74ABTH162827A
V
CC
= 5.5V; V
I
= V
CC
Data pins
4
0.01
1
1
A
V
CC
= 5.5V; V
I
= 0
Data pins
4
1
3
5
A
B
H ld
t A i
t
5
V
CC
= 4.5V; V
I
= 0.8V
35
35
I
HOLD
Bus Hold current A inputs
5
74ABTH162827A
V
CC
= 4.5V; V
I
= 2.0V
75
75
A
74ABTH162827A
V
CC
= 5.5V; V
I
= 0 to 5.5V
800
I
OFF
Power-off leakage current
V
CC
= 0.0V; V
O
= 4.5V; V
I
= 0V or 5.5V
5.0
100
100
A
I
PU
/I
PD
Power-up/down 3-State
output current
3
V
CC
= 2.1V; V
O
= 0.5V; V
I
= GND or V
CC
;
V
OE
= Don't care
5.0
50
50
A
I
OZH
3-State output High current
V
CC
= 5.5V; V
O
= 2.7V; V
I
= V
IL
or V
IH
1.0
10
10
A
I
OZL
3-State output Low current
V
CC
= 5.5V; V
O
= 0.5V; V
I
= V
IL
or V
IH
1.0
10
10
A
I
CEX
Output High leakage
current
V
CC
= 5.5V; V
O
= 5.5V; V
I
= GND or V
CC
1.0
50
50
A
I
O
Output current
1
V
CC
= 5.5V; V
O
= 2.5V
50
70
180
50
180
mA
I
CCH
V
CC
= 5.5V; Outputs High, V
I
= GND or
V
CC
0.5
1
1
mA
I
CCL
Quiescent supply current
V
CC
= 5.5V; Outputs Low, V
I
= GND or V
CC
9
19
19
mA
I
CCZ
V
CC
= 5.5V; Outputs 3-State;
V
I
= GND or V
CC
0.5
1
1
mA
I
CC
Additional supply current
per input pin
2
V
CC
= 5.5V; one input at 3.4V,
other inputs at V
CC
or GND
0.2
1
1
mA
NOTES:
1. Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
2. This is the increase in supply current for each input at 3.4V.
3. This parameter is valid for any V
CC
between 0V and 2.1V with a transition time of up to 10msec. From V
CC
= 2.1V to V
CC
= 5V
10% a
transition time of up to 100
sec is permitted.
4. Unused pins at V
CC
or GND.
5. This is the bus hold overdrive current required to force the input to the opposite logic state.