IDT54/74FCT16245T/AT/CT/ET
FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
FAST CMOS 16-BIT
BIDIRECTIONAL
TRANSCEIVER
DESCRIPTION:
FEATURES:
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IDT54/74FCT16245T/AT/CT/ET
The FCT16245T 16-bit transceiver is built using advanced dual metal CMOS
technology. These high-speed, low-power transceivers are ideal for
synchronous communication between two busses (A and B). The Direction and
Output Enable controls operate these devices as either two independent 8-bit
transceivers or one 16-bit transceiver. The direction control pin (xDIR) controls
the direction of data flow. The output enable pin (xOE) overrides the direction
control and disables both ports. All inputs are designed with hysteresis for
improved noise margin.
The FCT16245T is ideally suited for driving high-capacitance loads and lowimpedance backplanes. The output buffers are designed with power off disable
capability to allow "live insertion" of boards when used as backplane drivers.
0.5 MICRON CMOS Technology
High-speed, low-power CMOS replacement for ABT functions
Typical tSK(o) (Output Skew) < 250ps
Low input and output leakage ≤ 1µA (max.)
ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
High drive outputs (–32mA IOH, 64mA IOL)
Power off disable outputs permit “live insertion”
Typical VOLP (Output Ground Bounce) < 1.0V at VCC = 5V,
TA = 25°C
Available in the following packages:
– Industrial: SSOP, TSSOP, TVSOP
– Military: CERPACK
FUNCTIONAL BLOCK DIAGRAM
1 DIR
2 DIR
1OE
2OE
1A1
2A1
1B1
2B1
1A2
2A2
1B2
2B2
1A3
2A3
1B3
2B3
1A4
2A4
1B4
2B4
1A5
2A5
1B5
2B5
1A6
2A6
1B6
2B6
1A7
2A7
1B7
2B7
1A8
2A8
1B8
2B8
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
OCTOBER 2003
1
© 2003 Integrated Device Technology, Inc.
DSC-5456/5
IDT54/74FCT16245T/AT/CT/ET
FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVER
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: TA = –40°C to +85°C, VCC = 5.0V ±10%; Military: TA = –55°C to +125°C, VCC = 5.0V ±10%
Symbol
Test Conditions(1)
Parameter
Min.
Typ.(2)
Max.
Unit
VIH
Input HIGH Level
Guaranteed Logic HIGH Level
2
—
—
V
VIL
Input LOW Level
Guaranteed Logic LOW Level
—
—
0.8
V
IIH
Input HIGH Current (Input pins)(5)
VCC = Max.
—
—
±1
µA
—
—
±1
—
—
±1
—
—
±1
VO = 2.7V
—
—
±1
VO = 0.5V
—
—
±1
VI = VCC
Input HIGH Current (I/O pins)(5)
IIL
Input LOW Current (Input pins)(5)
VI = GND
Input LOW Current (I/O pins)(5)
IOZH
High Impedance Output Current
IOZL
(3-State Output pins)(5)
VIK
Clamp Diode Voltage
VCC = Min., IIN = –18mA
—
–0.7
–1.2
V
IOS
Short Circuit Current
VCC = Max., VO = GND(3)
–80
–140
–250
mA
VH
Input Hysteresis
—
100
—
mV
ICCL
ICCH
ICCZ
Quiescent Power Supply Current
—
5
500
µA
VCC = Max.
—
VCC = Max.
VIN = GND or VCC
µA
OUTPUT DRIVE CHARACTERISTICS
Symbol
IO
VOH
Parameter
Output Drive Current
Output HIGH Voltage
VOL
Output LOW Voltage
IOFF
Input/Output Power Off Leakage(5)
Test Conditions(1)
VCC = Max., VO = 2.5V(3)
VCC = Min.
IOH = –3mA,
IOH = –12mA MIL
VIN = VIH or VIL
IOH = –15mA IND
IOH = –24mA MIL
IOH = –32mA IND(4)
VCC = Min.
IOL = 48mA MIL
VIN = VIH or VIL
IOL = 64mA IND
VCC = 0V, VIN or VO ≤ 4.5V
Min.
–50
–2.5
2.4
Typ.(2)
—
3.5
3.5
Max.
–180
—
—
Unit
mA
V
V
2
3
—
V
—
0.2
0.55
V
—
—
±1
µA
NOTES:
1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 5.0V, +25°C ambient.
3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
4. Duration of the condition can not exceed one second.
5. The test limit for this parameter is ±5µA at TA = –55°C.
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