INTEGRATED CIRCUITS
74ABT861
10-bit bus transceiver (3-State)
Product specification
Supersedes data of 1995 Sep 06
IC23 Data Handbook
1998 Jan 16
Philips
Semiconductors
Philips Semiconductors
Product specification
10-bit bus transceiver (3-State)
74ABT861
FEATURES
•
Provides high performance bus interface buffering for wide
data/address paths or buses carrying parity
DESCRIPTION
The 74ABT861 bus transceiver provides high performance bus
interface buffering for wide data/address paths of buses carrying
parity.
The 74ABT861 10-bit bus transceiver has NOR-ed transmit and
receive output enables for maximum control flexibility.
•
Buffered control inputs for light loading, or increased fan-in as
required with MOS microprocessors
•
Output capability: +64mA/–32mA
•
Latch-up protection exceeds 500mA per Jedec Std 17
•
ESD protection exceeds 2000 V per MIL STD 883 Method 3015
•
Power-up 3-State
•
Inputs are disabled during 3-State mode
QUICK REFERENCE DATA
SYMBOL
t
PLH
t
PHL
C
IN
C
I/O
I
CCZ
PARAMETER
Propagation delay
An to Bn or Bn to An
Input capacitance
I/O capacitance
Total supply current
and 200 V per Machine Model
CONDITIONS
T
amb
= 25°C; GND = 0V
C
L
= 50pF; V
CC
= 5V
V
I
= 0V or V
CC
Outputs disabled; V
O
= 0V or V
CC
Outputs disabled; V
CC
=5.5V
TYPICAL
3.4
4
7
500
UNIT
ns
pF
pF
nA
ORDERING INFORMATION
PACKAGES
24-Pin Plastic DIP
24-Pin plastic SO
24-Pin Plastic SSOP Type II
24-Pin Plastic TSSOP Type I
TEMPERATURE RANGE
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
OUTSIDE NORTH AMERICA
74ABT861 N
74ABT861 D
74ABT861 DB
74ABT861 PW
NORTH AMERICA
74ABT861 N
74ABT861 D
74ABT861 DB
74ABT861PW DH
DWG NUMBER
SOT222-1
SOT137-1
SOT340-1
SOT355-1
PIN CONFIGURATION
OEBA
A0
A1
A2
A3
A4
A5
A6
A7
1
2
3
4
5
6
7
8
9
TOP VIEW
24
23
22
21
20
19
18
17
16
15
14
13
V
CC
B0
B1
B2
B3
B4
B5
B6
B7
B8
B9
OEAB
PIN DESCRIPTION
PIN NUMBER
13
2, 3, 4, 5, 6,
7, 8, 9, 10, 11
23, 22, 21, 20, 19,
18, 17, 16, 15, 14
1
12
24
SYMBOL
OEAB
A0-A9
B0-B9
OEBA
GND
V
CC
FUNCTION
A side to B side output enable
input (active-Low)
Data inputs/outputs (A side)
Data inputs/outputs (B side)
B side to A side output enable
input (active-Low)
Ground (0V)
Positive supply voltage
A8 10
A9 11
GND 12
SA00278
1998 Jan 16
2
853-1621 18866
Philips Semiconductors
Product specification
10-bit bus transceiver (3-State)
74ABT861
LOGIC SYMBOL
LOGIC SYMBOL (IEEE/IEC)
1
13
EN1(BA)
EN2(AB)
2
3
4
5
6
7
8
9
10
11
2
1
2
3
4
5
6
7
8
22
21
20
19
18
17
16
15
14
23
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9
1
13
OEBA
OEAB
B0 B1 B2 B3 B4 B5 B6 B7 B8 B9
23 22 21 20
19 18 17
16 15
14
9
10
11
SA00279
SA00280
LOGIC DIAGRAM
OEAB
FUNCTION TABLE
INPUTS
OEAB
L
10
10
Bn
OPERATING
OEBA
H
L
MODE
A data to B bus
B data to A bus
H
H
L
X
Z
=
=
=
=
An
OEBA
H
H
Z
High voltage level
Low voltage level
Don’t care
High impedance “off” state
SA00281
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.
1998 Jan 16
3
Philips Semiconductors
Product specification
10-bit bus transceiver (3-State)
74ABT861
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
Min
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
Low-level input voltage
High-level output current
Low-level output current
Input transition rise or fall rate
Operating free-air temperature range
0
–40
4.5
0
2.0
0.8
–32
64
5
+85
LIMITS
Max
5.5
V
CC
V
V
V
V
mA
mA
ns/V
°C
UNIT
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
T
amb
= +25°C
Min
V
IK
Input clamp voltage
V
CC
= 4.5V; I
IK
= –18mA
V
CC
= 4.5V; I
OH
= –3mA; V
I
= V
IL
or V
IH
V
OH
High–level output voltage
V
CC
= 5.0V; I
OH
= –3mA; V
I
= V
IL
or V
IH
V
CC
= 4.5V; I
OH
= –32mA; V
I
= V
IL
or V
IH
V
OL
I
I
I
OFF
I
PU/PD
I
IH
+ I
OZH
I
IL
+ I
OZL
I
CEX
I
O
I
CCH
I
CCL
I
CCZ
Quiescent supply current
Low–level output voltage
Input leakage
current
Control pins
Data pins
V
CC
= 4.5V; I
OL
= 64mA; V
I
= V
IL
or V
IH
V
CC
= 5.5V; V
I
= GND or 5.5V
V
CC
= 5.5V; V
I
= GND or 5.5V
V
CC
= 0.0V; V
O
or V
I
≤
4.5V
V
CC
= 2.1V; V
O
= 0.5V; V
I
= GND or V
CC
;
V
OE
= V
CC
V
CC
= 5.5V; V
O
= 2.7V; V
I
= V
IL
or V
IH
V
CC
= 5.5V; V
O
= 0.5V; V
I
= V
IL
or V
IH
V
CC
= 5.5V; V
O
= 5.5V; V
I
= GND or V
CC
V
CC
= 5.5V; V
O
= 2.5V
V
CC
= 5.5V; Outputs High, V
I
= GND or V
CC
V
CC
= 5.5V; Outputs Low, V
I
= GND or V
CC
V
CC
= 5.5V; Outputs 3-State;
V
I
= GND or V
CC
Outputs enabled, one input at 3.4V,
other inputs at V
CC
or GND; V
CC
= 5.5V
∆I
CC
Additional supply current per
input pin
2
Outputs 3-State, one data input at 3.4V,
other inputs at V
CC
or GND; V
CC
= 5.5V
Outputs 3-State, one enable input at 3.4V,
other inputs at V
CC
or GND; V
CC
= 5.5V
–50
2.5
3.0
2.0
Typ
–0.9
3.5
4.0
2.6
0.42
±0.01
±5.0
±5.0
±5.0
5.0
–5.0
5.0
–100
0.5
25
0.5
0.5
0.01
0.5
0.55
±1.0
±100
±100
±50
50
–50
50
–180
250
38
50
1.5
50
1.5
–50
Max
–1.2
2.5
3.0
2.0
0.55
±1.0
±100
±100
±50
50
–50
50
–180
250
38
50
1.5
50
1.5
T
amb
= –40°C
to +85°C
Min
Max
–1.2
V
V
V
V
V
µA
µA
µA
µA
µA
µA
µA
mA
µA
mA
µA
mA
µA
mA
UNIT
Power-off leakage current
Power–up/down 3-State
output current
3
3-State output High current
3-State output Low current
Output high leakage current
Output current
1
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. For V
CC
= 2.1V to V
CC
= 5V
"
10%, a
transition time of up to 100µsec is permitted.
1998 Jan 16
4
Philips Semiconductors
Product specification
10-bit bus transceiver (3-State)
74ABT861
AC CHARACTERISTICS
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
An to Bn or Bn to An
Output enable time
to High and Low level
Output disable time
from High and Low level
1
2
2
1.1
1.0
1.2
2.4
3.1
3.7
T
amb
= +25
o
C
V
CC
= +5.0V
Typ
3.4
3.2
3.5
4.6
5.3
5.3
Max
4.9
4.9
5.0
6.0
6.5
6.6
T
amb
= -40 to
+85
o
C
V
CC
= +5.0V
±0.5V
Min
1.1
1.0
1.2
2.4
3.1
3.7
Max
5.2
5.2
5.9
6.9
7.5
7.1
ns
ns
ns
UNIT
AC WAVEFORMS
V
M
= 1.5V, V
IN
= GND to 3.0V
INPUT
V
M
V
M
OEXX
INPUT
V
M
V
M
t
PZL
t
PLH
t
PHL
OUTPUT
OUTPUT
V
M
V
M
t
PZH
V
M
t
PLZ
3.5V
V
OL
+ 0.3V
t
PHZ
V
OL
V
OH
SA00023
Waveform 1. Input to Output Propagation Delays
OUTPUT
V
OH
– 0.3V
V
M
0V
SA00282
Waveform 2. 3-State Output Enable and Disable Times
TEST CIRCUIT AND WAVEFORM
7V
From Output
Under Test
C
L
= 50 pF
500
Ω
S1
Open
GND
500
Ω
Load Circuit
TEST
t
pd
t
PLZ
/t
PZL
t
PHZ
/t
PZH
S1
open
7V
open
DEFINITIONS
Load capacitance includes jig and probe capacitance;
C
L
=
see AC CHARACTERISTICS for value.
SA00012
1998 Jan 16
5
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