Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
APRIL 1994
1994 Integrated Device Technology, Inc.
7.23
DSC-4620/3
HIGH-PERFORMANCE
CMOS BUS
TRANSCEIVERS
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
FAST is a trademark of National Semiconductor Co.
FEATURES:
Equivalent to AMD's Am29861-64 bipolar registers in
pinout/function, speed and output drive over full tempera-
ture and voltage supply extremes
IDT54/74FCT861A/863A equivalent to FAST
TM
speed
IDT54/74FCT861B/863B 25% faster than FAST
High-speed symmetrical bidirectional transceivers
I
OL
= 48mA (commercial) and 32mA (military)
Clamp diodes on all inputs for ringing suppression
CMOS power levels (1mW typ. static)
TTL input and output level compatible
CMOS output level compatible
Substantially lower input current levels than AMD's
bipolar Am29800 Series (5
A max.)
Product available in Radiation Tolerant and Radiation
Enhanced versions
Military product compliant to MIL-STD-883, Class B
DESCRIPTION:
The IDT54/74FCT800 series is built using an advanced
dual metal CMOS technology.
The IDT54/74FCT860 series bus transceivers provide
high-performance bus interface buffering for wide
data/address paths or buses carrying parity. The
IDT54/74FCT863 9-bit transceivers have NAND-ed output
enables for maximum control flexibility.
All of the IDT54/74FCT800 high-performance interface
family are designed for high-capacitance load drive capability
while providing low-capacitance bus loading at both inputs
and outputs. All inputs have clamp diodes and all outputs are
designed for low-capacitance bus loading in the high- im-
pedance state.
FUNCTIONAL BLOCK DIAGRAMS
IDT54/74FCT861
IDT54/74FCT863
T
0
T
1
OER
T
9
-
R
0
R
1
OET
R
9
-
IDT54/74FCT861A/B
IDT54/74FCT863A/B
1
2610 drw 01
T
0
T
1
OER
T
8
-
R
0
R
1
OET
R
8
-
OET
1
2
OER
1
2
PRODUCT SELECTOR GUIDE
Device
10-Bit
9-Bit
Non-inverting
IDT54/74FCT861
IDT54/74FCT863
IDT54/74FCT861A/B, IDT54/74FCT863A/B
HIGH-PERFORMANCE CMOS BUS TRANSCEIVERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
7.23
2
PIN CONFIGURATIONS
IDT54/74FCT861 10-BIT TRANSCEIVERS
5
6
7
8
9
10
11
12
GND
OER
R
0
R
1
1
2
3
4
24
23
22
21
20
19
18
17
Vcc
16
15
14
13
P24-1,
D24-1,
E24-1
&
SO24-2
T
0
R
2
R
3
R
4
R
5
R
6
T
1
T
2
T
3
T
4
T
5
T
6
T
7
R
7
R
8
T
8
1
OER
2
OET
2
OET
1
DIP/CERPACK/SOIC
TOP VIEW
2610 drw 02
5
6
7
8
9
10
11
L28-1
25
24
23
22
21
20
19
INDEX
R
2
R
3
R
4
R
5
R
6
R
7
NC
Vcc
T
0
T
1
NC
NC
NC
T
2
T
3
T
4
T
5
T
6
T
7
R
0
R
1
GND
R
8
T
8
OER
OER
2
OET
1
OET
2
12 13 14 15 16 17 18
4
3
2
1
28 27 26
LOGIC SYMBOLS
LCC
TOP VIEW
5
6
7
8
9
10
11
12
GND
OER
R
0
R
1
1
2
3
4
24
23
22
21
20
19
18
17
Vcc
16
15
14
13
P24-1,
D24-1,
E24-1
&
SO24-2
T
0
R
2
R
3
R
4
R
5
R
6
T
1
T
2
T
3
T
4
T
5
T
6
T
7
R
7
R
8
R
9
T
8
T
9
OET
LCC
TOP VIEW
DIP/CERPACK/SOIC
TOP VIEW
5
6
7
8
9
10
11
L28-1
25
24
23
22
21
20
19
INDEX
R
2
R
3
R
4
R
5
R
6
R
7
NC
Vcc
T
0
T
1
NC
NC
NC
T
2
T
3
T
4
T
5
T
6
T
7
R
0
R
1
GND
R
8
R
9
T
8
T
9
OET
OER
12 13 14 15 16 17 18
4
3
2
1
28 27 26
IDT54/74FCT863 9-BIT TRANSCEIVERS
IDT54/74FCT863
IDT54/74FCT861
T
R
10
10
OET
OER
OET
1
OET
2
2610 drw 03
T
R
9
9
OER
1
OER
2
IDT54/74FCT861A/B, IDT54/74FCT863A/B
HIGH-PERFORMANCE CMOS BUS TRANSCEIVERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
7.23
3
PIN DESCRIPTION
Name
I/O
Description
IDT54/74FCT861
OER
I
When LOW in conjunction with
OET
HIGH
activates the RECEIVE mode.
OET
I
When LOW in conjunction with
OER
HIGH
activates the TRANSMIT mode.
R
I
I/O
10-bit RECEIVE input/output.
T
I
I/O
10-bit TRANSMIT input/output.
IDT54/74FCT863
OER
I
I
When LOW in conjunction with
OET
I
HIGH
activates the RECEIVE mode.
OET
I
I
When LOW in conjunction with
OER
I
HIGH
activates the TRANSMIT mode.
R
I
I/O
9-bit RECEIVE input/output.
T
I
I/O
9-bit TRANSMIT input/output.
2610 tbl 01
CAPACITANCE
(T
A
= +25
C, f = 1.0MHz)
Symbol
Parameter
(1)
Conditions Typ.
Max.
Unit
C
IN
Input Capacitance
V
IN
= 0V
6
10
pF
C
I/O
I/O Capacitance
V
OUT
= 0V
8
12
pF
NOTE:
2610 tbl 04
1. This parameter is guaranteed by characterization but not tested.
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol
Rating
Commercial
Military
Unit
V
TERM
(2)
Terminal Voltage
0.5 to +7.0 0.5 to +7.0
V
with Respect
to GND
V
TERM
(3)
Terminal Voltage
0.5 to V
CC
0.5 to V
CC
V
with Respect
to GND
T
A
Operating
0 to +70
55 to +125
C
Temperature
T
BIAS
Temperature
55 to +125 65 to +135
C
Under Bias
T
STG
Storage
55 to +125 65 to +150
C
Temperature
P
T
Power Dissipation
0.5
0.5
W
I
OUT
DC Output Current
120
120
mA
NOTES:
2610 tbl 03
1. Stresses greater than those listed under ABSOLUTE MAXIMUM
RATINGS may cause permanent damage to the device. This is a stress
rating only and functional operation of the device at these or any other
conditions above those indicated in the operational sections of this
specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability. No terminal voltage
may exceed V
CC
by +0.5V unless otherwise noted.
2. Inputs and V
CC
terminals only.
3. Outputs and I/O terminals only.
FUNCTION TABLE
(1)
IDT54/74FCT861/863 (Non-inverting)
Inputs
Outputs
OET
OET OER
OER
R
I
T
I
R
I
T
I
Function
L
H
L
N/A
N/A
L
Transmitting
L
H
H
N/A
N/A
H
Transmitting
H
L
N/A
L
L
N/A
Receiving
H
L
N/A
H
H
N/A
Receiving
H
H
X
X
Z
Z
High Z
NOTE:
2610 tbl 02
1. H = HIGH, L = LOW, Z = High Impedance, X = Don't Care, N/A = Not
Applicable.
IDT54/74FCT861A/B, IDT54/74FCT863A/B
HIGH-PERFORMANCE CMOS BUS TRANSCEIVERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
7.23
4
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: V
LC
= 0.2V, V
H
C
= V
CC
0.2V
Commercial: T
A
= 0
C to +70
C, V
CC
= 5.0V
5%; Military: T
A
= 55
C to +125
C, V
CC
= 5.0V
10%
Symbol
Parameter
Test Conditions
(1)
Min.
Typ.
(2)
Max.
Unit
V
IH
Input HIGH Level
Guaranteed Logic HIGH Level
2.0
--
--
V
V
IL
Input LOW Level
Guaranteed Logic LOW Level
--
--
0.8
V
I
IH
Input HIGH Current
V
CC
= Max.
V
I
= V
CC
--
--
5
A
(Except I/O pins)
V
I
= 2.7V
--
--
5
(4)
I
IL
Input LOW Current
V
I
= 0.5V
--
--
5
(4)
A
(Except I/O pins)
V
I
= GND
--
--
5
I
IH
Input HIGH Current
V
CC
= Max.
V
I
= V
CC
--
--
15
(I/O pins Only)
V
I
= 2.7V
--
--
15
(4)
I
IL
Input LOW Current
V
I
= 0.5V
--
--
15
(4)
(I/O pins Only)
V
I
= GND
--
--
15
V
IK
Clamp Diode Voltage
V
CC
= Min., I
N
= 18mA
--
0.7
1.2
V
I
OS
Short Circuit Current
V
CC
= Max.
(3)
, V
O
= GND
75
120
--
mA
V
OH
Output HIGH Voltage
V
CC
= 3V, V
IN
= V
LC
or V
HC
, I
OH
= 32
A
V
HC
V
CC
--
V
V
CC
= Min.
I
OH
= 300
A
V
HC
V
CC
--
V
IN
= V
IH
or V
IL
I
OH
= 15mA MIL.
2.4
4.3
--
I
OH
= 24mA COM'L.
2.4
4.3
--
V
OL
Output LOW Voltage
V
CC
= 3V, V
IN
= V
LC
or V
HC
, I
OL
= 300
A
--
GND
V
LC
V
V
CC
= Min.
I
OL
= 300
A
--
GND
V
LC
(4)
V
IN
= V
IH
or V
IL
I
OL
= 32mA MIL.
(5)
--
0.3
0.5
I
OL
= 48mA COM'L.
(5)
--
0.3
0.5
NOTES:
2610 tbl 05
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 5.0V, +25
C ambient and maximum loading.
3. Not more than one output should be shorted at one time. Duration of the short circuit test should not exceed one second.
4. This parameter is guaranteed but not tested.
5. These are maximum I
OL
values per output, for 10 outputs turned on simultaneously. Total maximum I
OL
(all outputs) is 480mA for commercial and 320mA
for military. Derate I
OL
for number of outputs exceeding 10 turned on simultaneously.
IDT54/74FCT861A/B, IDT54/74FCT863A/B
HIGH-PERFORMANCE CMOS BUS TRANSCEIVERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
7.23
5
POWER SUPPLY CHARACTERISTICS
V
LC
= 0.2V; V
HC
= V
CC
0.2V
Symbol
Parameter
Test Conditions
(1)
Min.
Typ.
(2)
Max.
Unit
I
CC
Quiescent Power
V
CC
= Max.
--
0.2
1.5
mA
Supply Current
V
IN
V
HC
; V
IN
V
LC
I
CC
Quiescent Power Supply
V
CC
= Max.
--
0.5
2.0
mA
Current TTL Inputs HIGH
V
IN
= 3.4V
(3)
I
CCD
Dynamic Power Supply Current
(4)
V
CC
= Max., Outputs Open
V
IN
V
HC
--
0.15
0.25
mA/
OER
or
OET
= GND
V
IN
V
LC
MHz
One Input Toggling
50% Duty Cycle
I
C
Total Power Supply Current
(6)
V
CC
= Max., Outputs Open
V
IN
V
HC
--
1.7
4.0
mA
f
i
= 10MHz
V
IN
V
LC
50% Duty Cycle
(FCT)
OER
or
OET
= GND
V
IN
= 3.4V
--
2.0
5.0
One Bit Toggling
V
IN
= GND
V
CC
= Max., Outputs Open
V
IN
V
HC
--
3.2
6.5
(5)
f
i
= 2.5MHz
V
IN
V
LC
50% Duty Cycle
(FCT)
OER
or
OET
= GND
V
IN
= 3.4V
--
5.2
14.5
(5)
Eight Bits Toggling
V
IN
= GND
NOTES:
2610 tbl 06
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 5.0V, +25
C ambient.
3. Per TTL driven input (V
IN
= 3.4V); all other inputs at V
CC
or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply calculations.
5. Values for these conditions are examples of the I
CC
formula. These limits are guaranteed but not tested.
6. I
C
= I
QUIESCENT
+I
INPUTS
+ I
DYNAMIC
I
C
= I
CC
+
I
CC
D
H
N
T
+ I
CCD
(f
CP
/2 + f
i
N
i
)
I
CC
= Quiescent Current
I
CC
= Power Supply Current for a TTL High Input (V
IN
= 3.4V)
D
H
= Duty Cycle for TTL Inputs High
N
T
= Number of TTL Inputs at D
H
I
CCD
= Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
f
CP
= Clock Frequency for Register Devices (Zero for Non-Register Devices)
f
i
= Input Frequency
N
i
= Number of Inputs at f
i
All currents are in milliamps and all frequencies are in megahertz.
IDT54/74FCT861A/B, IDT54/74FCT863A/B
HIGH-PERFORMANCE CMOS BUS TRANSCEIVERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
7.23
6
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
NOTES:
2610 tbl 07
1. See test circuits and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. This condition guaranteed but not tested.
FCT861A/863A
FCT861B/863B
Com'l.
Mil.
Com'l.
Mil.
Symbol
Parameter
Condition
(1)
Min
.
(2)
Max.
Min
.
(2)
Max.
Min
.
(2)
Max.
Min
.
(2)
Max.
Unit
t
PLH
t
PHL
Propagation Delay
R
I
to T
I
or T
I
to R
I
C
L
= 50pF
R
L
= 500
1.5
8.0
1.5
9.0
1.5
6.0
1.5
6.5
ns
FCT861/863
C
L
= 300pF
(3)
R
L
= 500
1.5
15.0
1.5
17.0
1.5
13.0
1.5
14.0
t
PZH
t
PZL
Output Enable Time
OET
to T
I
or
OER
to R
I
C
L
= 50pF
R
L
= 500
1.5
12.0
1.5
13.0
1.5
8.0
1.5
9.0
ns
C
L
= 300pF
(3)
R
L
= 500
1.5
20.0
1.5
22.0
1.5
15.0
1.5
16.0
t
PHZ
t
PLZ
Output Disable Time
OET
to T
I
or
OER
to R
I
C
L
= 5pF
(3)
R
L
= 500
1.5
9.0
1.5
9.0
1.5
6.0
1.5
7.0
ns
C
L
= 50pF
R
L
= 500
1.5
10.0
1.5
10.0
1.5
7.0
1.5
8.0
IDT54/74FCT861A/B, IDT54/74FCT863A/B
HIGH-PERFORMANCE CMOS BUS TRANSCEIVERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
7.23
7
Pulse
Generator
R
T
D.U.T.
V
CC
V
IN
C
L
V
OUT
50pF
500
500
7.0V
3V
1.5V
0V
3V
1.5V
0V
3V
1.5V
0V
3V
1.5V
0V
DATA
INPUT
TIMING
INPUT
ASYNCHRONOUS CONTROL
PRESET
CLEAR
ETC.
SYNCHRONOUS CONTROL
t
SU
t
H
t
REM
t
SU
t
H
HIGH-LOW-HIGH
PULSE
LOW-HIGH-LOW
PULSE
t
W
1.5V
1.5V
SAME PHASE
INPUT TRANSITION
3V
1.5V
0V
1.5V
V
OH
t
PLH
OUTPUT
OPPOSITE PHASE
INPUT TRANSITION
3V
1.5V
0V
t
PLH
t
PHL
t
PHL
V
OL
CONTROL
INPUT
3V
1.5V
0V
3.5V
0V
OUTPUT
NORMALLY
LOW
OUTPUT
NORMALLY
HIGH
SWITCH
CLOSED
SWITCH
OPEN
V
OL
0.3V
0.3V
t
PLZ
t
PZL
t
PZH
t
PHZ
3.5V
0V
1.5V
1.5V
ENABLE
DISABLE
V
OH
PRESET
CLEAR
CLOCK ENABLE
ETC.
TEST CIRCUITS AND WAVEFORMS
TEST CIRCUITS FOR ALL OUTPUTS
SET-UP, HOLD AND RELEASE TIMES
PULSE WIDTH
SWITCH POSITION
Test
Switch
Open Drain
Disable Low
Closed
Enable Low
All Other Tests
Open
DEFINITIONS:
2610 tbl 08
C
L
= Load capacitance: includes jig and probe capacitance.
R
T
= Termination resistance: should be equal to Z
OUT
of the Pulse
Generator.
ENABLE AND DISABLE TIMES
PROPAGATION DELAY
2610 drw 03
NOTES:
1. Diagram shown for input Control Enable-LOW and input Control Disable-
HIGH
2. Pulse Generator for All Pulses: Rate
1.0MHz; t
F
2.5ns; t
R
2.5ns
IDT54/74FCT861A/B, IDT54/74FCT863A/B
HIGH-PERFORMANCE CMOS BUS TRANSCEIVERS
MILITARY AND COMMERCIAL TEMPERATURE RANGES
7.23
8
ORDERING INFORMATION
XX
Temperature
Range
XXXX
Device
Type
X
Package
X
Process
Blank
B
Commercial
MIL-STD-883, Class B
P
D
E
L
SO
Plastic DIP
CERDIP
CERPACK
Leadless Chip Carrier
Small Outline IC
-55
C to +125
C
0
to +70
C
2610 drw 04
54
74
FCT
IDT
861A
863A
861B
863B
10-Bit Non-inverting Transceiver
9-Bit Non-inverting Transceiver
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