Datasheet IDT54FCT861A, IDT54FCT861B, IDT54FCT863A, IDT54FCT863B, IDT74FCT861A Datasheet (IDT)
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Integrated Device Technology, Inc.
HIGH-PERFORMANCE
CMOS BUS
TRANSCEIVERS
IDT54/74FCT861A/B
IDT54/74FCT863A/B
FEATURES:
• Equivalent to AMD’s Am29861-64 bipolar registers in
pinout/function, speed and output drive over full temperature and voltage supply extremes
• IDT54/74FCT861A/863A equivalent to FAST speed
• IDT54/74FCT861B/863B 25% faster than FAST
• High-speed symmetrical bidirectional transceivers
•IOL = 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 (5µA max.)
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- impedance state.
• Product available in Radiation Tolerant and Radiation
Enhanced versions
• Military product compliant to MIL-STD-883, Class B
FUNCTIONAL BLOCK DIAGRAMS
IDT54/74FCT861 IDT54/74FCT863
T
0
T
1
9
-
OERT
T
0
T
1
8
-
OERT
OER
12
R
0
R
1
OETR9-
R
0
R
1
OETR8- OET
12
2610 drw 01
PRODUCT SELECTOR GUIDE
Device
10-Bit 9-Bit
Non-inverting IDT54/74FCT861 IDT54/74FCT863
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
FAST is a trademark of National Semiconductor Co.
MILITARY AND COMMERCIAL TEMPERATURE RANGES APRIL 1994
1994 Integrated Device Technology, Inc. 7.23 DSC-4620/3
1
IDT54/74FCT861A/B, IDT54/74FCT863A/B
HIGH-PERFORMANCE CMOS BUS TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN CONFIGURATIONS
IDT54/74FCT861 10-BIT TRANSCEIVERS
OER
R
R
R
R
R
R
R
R
R
R
GND
1
2
0
3
1
2
3
4
5
6
7
8
9
4
5
6
7
8
9
10
11
12
P24-1,
D24-1,
E24-1
SO24-2
24
23
22
21
20
19
&
18
17
16
15
14
13
DIP/CERPACK/SOIC
TOP VIEW
IDT54/74FCT863 9-BIT TRANSCEIVERS
OER
OER
GND
1
1
2
0
R
3
R
1
R
2
R
3
4
R
R
5
R
6
R
7
R
8
2
4
5
6
7
8
9
10
11
12
P24-1,
D24-1,
E24-1
SO24-2
24
23
22
21
20
19
&
18
17
16
15
14
13
Vcc
0
T
T
1
T
2
T
3
T
4
T
5
T
6
T
7
T
8
T
9
OET
Vcc
T
T
T
T
T
T
T
T
T
OET
OET
INDEX
R2
R3
R4
NC
R
5
R6
R7
1
R0R
OER
432128 27 26
5
6
7
8
9
10
11
L28-1
12 13 14 15 16 17 18
8
R
R9
GND
NC
NC
Vcc
OET
0
T1
T
25
2
T
24
T3
23
T4
NC
22
21
T5
20
T6
19
T7
9
T8T
LCC
TOP VIEW
INDEX
0
1
2
3
4
5
6
7
8
2
1
R2
R3
R4
NC
R
R6
R7
5
1
OER
R0R
432128 27 26
5
6
7
8
9
10
11
L28-1
12 13 14 15 16 17 18
8
2
R
GND
OER
NC
NC
Vcc
1
OET
0T1
T
2
OET
25
2
T
24
T3
T4
23
NC
22
21
T5
T6
20
19
T7
8
T
2610 drw 02
DIP/CERPACK/SOIC
LOGIC SYMBOLS
OET
10 10
OER
TOP VIEW
LCC
TOP VIEW
IDT54/74FCT863IDT54/74FCT861
OET1
OET2
TR
99
TR
OER1
OER2
7.23 2
2610 drw 03
IDT54/74FCT861A/B, IDT54/74FCT863A/B
HIGH-PERFORMANCE CMOS BUS TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN DESCRIPTION
Name I/O Description
IDT54/74FCT861
OER
OET
I I/O 10-bit RECEIVE input/output.
R
I I/O 10-bit TRANSMIT input/output.
T
IDT54/74FCT863
OER
OET
R
I I/O 9-bit RECEIVE input/output.
I I/O 9-bit TRANSMIT input/output.
T
I When LOW in conjunction with
activates the RECEIVE mode.
I When LOW in conjunction with
activates the TRANSMIT mode.
I I When LOW in conjunction with
activates the RECEIVE mode.
I I When LOW in conjunction with
activates the TRANSMIT mode.
OET
OER
OET
OER
HIGH
HIGH
I HIGH
I HIGH
2610 tbl 01
FUNCTION TABLE
(1)
IDT54/74FCT861/863 (Non-inverting)
Inputs Outputs
OET
OER
OET
OER
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.
I T I RI TI Function
R
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol Rating Commercial Military Unit
(2)
V
TERM
Terminal Voltage –0.5 to +7.0 –0.5 to +7.0 V
with Respect
to GND
(3)
V
TERM
Terminal Voltage –0.5 to VCC –0.5 to VCC 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
OUT DC Output Current 120 120 mA
I
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
2. Inputs and V
3. Outputs and I/O terminals only.
CC by +0.5V unless otherwise noted.
CC terminals only.
CAPACITANCE (TA = +25°C, f = 1.0MHz)
Symbol Parameter
IN Input Capacitance V IN = 0V 6 10 pF
C
I/O I/O Capacitance VOUT = 0V 8 12 pF
C
NOTE: 2610 tbl 04
1. This parameter is guaranteed by characterization but not tested.
(1)
Conditions Typ. Max. Unit
7.23 3
IDT54/74FCT861A/B, IDT54/74FCT863A/B
HIGH-PERFORMANCE CMOS BUS TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: VLC = 0.2V, VHC = VCC – 0.2V
Commercial: TA = 0°C to +70°C, VCC = 5.0V ± 5%; Military: TA = –55°C to +125°C, VCC = 5.0V ± 10%
Symbol Parameter Test Conditions
IH Input HIGH Level Guaranteed Logic HIGH Level 2.0 — — V
V
IL Input LOW Level Guaranteed Logic LOW Level — — 0.8 V
V
IH Input HIGH Current VCC = Max. VI = VCC ——5µA
I
(Except I/O pins) V
(1)
I = 2.7V — — 5
Min. Typ.
IIL Input LOW Current VI = 0.5V ——–5
(Except I/O pins) V
IH Input HIGH Current VCC = Max. VI = VCC ——15
I
(I/O pins Only) V
I = GND — — –5
I = 2.7V — — 15
IIL Input LOW Current VI = 0.5V — — –15
(I/O pins Only) VI = GND — — –15
IK Clamp Diode Voltage VCC = Min., IN = –18mA — –0.7 –1.2 V
V
OS Short Circuit Current VCC = Max.
I
OH Output HIGH Voltage VCC = 3V, VIN = VLC or VHC, IOH = –32µAVHC VCC —V
V
CC = Min. IOH = –300µAVHC VCC —
V
IN = VIH or VIL IOH = –15mA MIL. 2.4 4.3 —
V
OL Output LOW Voltage VCC = 3V, VIN = VLC or VHC, IOL = 300µA — GND VLC V
V
CC = Min. IOL = 300µA — GND VLC
V
VIN = VIH or VIL IOL = 32mA MIL.
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
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
for military. Derate I
CC = 5.0V, +25°C ambient and maximum loading.
OL values per output, for 10 outputs turned on simultaneously. Total maximum IOL (all outputs) is 480mA for commercial and 320mA
OL for number of outputs exceeding 10 turned on simultaneously.
(3)
, VO = GND –75 –120 — mA
OH = –24mA COM’L. 2.4 4.3 —
I
(5)
OL = 48mA COM’L.
I
— 0.3 0.5
(5)
— 0.3 0.5
(2)
Max. Unit
(4)
(4)
µA
(4)
(4)
(4)
7.23 4
IDT54/74FCT861A/B, IDT54/74FCT863A/B
HIGH-PERFORMANCE CMOS BUS TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
VLC = 0.2V; VHC = VCC – 0.2V
Symbol Parameter Test Conditions
I
CC Quiescent Power VCC = Max. — 0.2 1.5 mA
Supply Current V
∆ICC Quiescent Power Supply VCC = Max. — 0.5 2.0 mA
Current TTL Inputs HIGH V
ICCD Dynamic Power Supply Current
(4)
IN ≥ VHC ; VIN ≤ VLC
IN = 3.4V
(3)
VCC = Max., Outputs Open VIN ≥ VHC — 0.15 0.25 mA/
OER
or
OET
= GND V
(1)
IN ≤ VLC MHz
Min. Typ.
One Input Toggling
50% Duty Cycle
I
C Total Power Supply Current
(6)
VCC = Max., Outputs Open VIN ≥ VHC — 1.7 4.0 mA
f
i = 10MHz VIN ≤ VLC
50% Duty Cycle (FCT)
OER
or
OET
= GND V
One Bit Toggling V
V
CC = Max., Outputs Open VIN ≥ VHC — 3.2 6.5
IN = 3.4V — 2.0 5.0
IN = GND
fi = 2.5MHz VIN ≤ VLC
50% Duty Cycle (FCT)
OER
or
OET
= GND V
IN = 3.4V — 5.2 14.5
Eight Bits Toggling VIN = 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
3. Per TTL driven input (V
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
6. I
C = IQUIESCENT +IINPUTS + IDYNAMIC
IC = ICC + ∆ICCDHNT + ICCD(fCP/2 + fiNi)
CC = Quiescent Current
I
CC = Power Supply Current for a TTL High Input (VIN = 3.4V)
∆I
H = Duty Cycle for TTL Inputs High
D
N
T = Number of TTL Inputs at DH
ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
CP = Clock Frequency for Register Devices (Zero for Non-Register Devices)
f
i = Input Frequency
f
N
i = Number of Inputs at fi
All currents are in milliamps and all frequencies are in megahertz.
CC = 5.0V, +25°C ambient.
IN = 3.4V); all other inputs at VCC or GND.
CC formula. These limits are guaranteed but not tested.
(2)
Max. Unit
(5)
(5)
7.23 5
IDT54/74FCT861A/B, IDT54/74FCT863A/B
HIGH-PERFORMANCE CMOS BUS TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
FCT861A/863A FCT861B/863B
Com'l. Mil. Com'l. Mil.
Symbol Parameter Condition
tPLH
tPHL
Propagation Delay
I to TI or TI to RI
R
C
L = 500Ω
R
FCT861/863 CL = 300pF
(1)
L = 50pF
(3)
RL = 500Ω
tPZH
tPZL
Output Enable Time
I or
OER
OET
to T
to RI
C
L = 50pF
L = 500Ω
R
CL = 300pF
(3)
RL = 500Ω
tPHZ
tPLZ
Output Disable Time
I or
OER
OET
to T
to RI
C
RL = 500Ω
L = 5pF
(3)
CL = 50pF
L = 500Ω
R
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.
Min.
(2)
Max. Min.
(2)
Max. Min.
(2)
Max. Min.
(2)
Max. Unit
1.5 8.0 1.5 9.0 1.5 6.0 1.5 6.5 ns
1.5 15.0 1.5 17.0 1.5 13.0 1.5 14.0
1.5 12.0 1.5 13.0 1.5 8.0 1.5 9.0 ns
1.5 20.0 1.5 22.0 1.5 15.0 1.5 16.0
1.5 9.0 1.5 9.0 1.5 6.0 1.5 7.0 ns
1.5 10.0 1.5 10.0 1.5 7.0 1.5 8.0
7.23 6
IDT54/74FCT861A/B, IDT54/74FCT863A/B
HIGH-PERFORMANCE CMOS BUS TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES
TEST CIRCUITS AND WAVEFORMS
TEST CIRCUITS FOR ALL OUTPUTS
V
CC
V
OUT
50pF
CL
Pulse
Generator
V
IN
D.U.T.
T
R
500Ω
500Ω
SWITCH POSITION
7.0V
DEFINITIONS: 2610 tbl 08
CL = Load capacitance: includes jig and probe capacitance.
T = Termination resistance: should be equal to ZOUT of the Pulse
R
Generator.
Test Switch
Open Drain
Disable Low Closed
Enable Low
All Other Tests Open
SET-UP, HOLD AND RELEASE TIMES PULSE WIDTH
DATA
INPUT
TIMING
INPUT
ASYNCHRONOUS CONTROL
PRESET
CLEAR
ETC.
SYNCHRONOUS CONTROL
PRESET
CLEAR
CLOCK ENABLE
ETC.
tSU
tSU
tH
tREM
tH
3V
1.5V
0V
3V
1.5V
0V
3V
1.5V
0V
3V
1.5V
0V
LOW-HIGH-LOW
PULSE
HIGH-LOW-HIGH
PULSE
1.5V
tW
1.5V
SAME PHASE
INPUT TRANSITION
OUTPUT
OPPOSITE PHASE
INPUT TRANSITION
tPLH
tPHL
tPLH tPHL
3V
1.5V
0V
OH
V
1.5V
VOL
3V
1.5V
0V
ENABLE AND DISABLE TIMESPROPAGATION DELAY
ENABLE DISABLE
3V
CONTROL
INPUT
t
PLZtPZL
OUTPUT
NORMALLY
LOW
SWITCH
CLOSED
3.5V
1.5V
tPZH tPHZ
OUTPUT
NORMALLY
HIGH
NOTES:
1. Diagram shown for input Control Enable-LOW and input Control DisableHIGH
2. Pulse Generator for All Pulses: Rate ≤ 1.0MHz; t
SWITCH
OPEN
1.5V
0V
F ≤ 2.5ns; tR ≤ 2.5ns
0.3V
0.3V
1.5V
0V
3.5V
VOL
VOH
0V
2610 drw 03
7.23 7
IDT54/74FCT861A/B, IDT54/74FCT863A/B
HIGH-PERFORMANCE CMOS BUS TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES
ORDERING INFORMATION
XX
Temperature
Range
FCTIDT
XXXX
Device
X
PackageXProcess
Type
Blank
B
P
D
E
L
SO
861A
863A
Commercial
MIL-STD-883, Class B
Plastic DIP
CERDIP
CERPACK
Leadless Chip Carrier
Small Outline IC
10-Bit Non-inverting Transceiver
9-Bit Non-inverting Transceiver
861B
863B
54
74
-55°C to +125°C
° to +70°C
0
2610 drw 04
7.23 8
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