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IDT74FCT162H244AT/CT FAST CMOS 16-BIT BUFFER/LINE DRIVER
INDUSTRIAL TEMPERATURE RANGE
FAST CMOS 16-BIT BUFFER/LINE DRIVER
IDT74FCT162H244AT/CT
FEATURES:
* * * * *
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 1A (max.) ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) * Bus-Hold retains last active bus state during 3-state * Eliminates the need for external pull up resistors * Available in TSSOP and SSOP packages
DESCRIPTION:
The FCT162H244T 16-Bit Buffer/Line Driver is for bus interface or signal buffering applications requiring high speed and low power dissipation. These devices have a flow through pin organization, and shrink packaging to simplify board layout. All inputs are designed with hysteresis for improved noise margin. The three-state controls allow independent 4-bit, 8-bit or combined 16-bit operation. These parts are plug in replacements for 74ABT16244 where higher speed, lower noise or lower power dissipation levels are desired. The FCT162H244T has "Bus-Hold" which retains the input's last state whenever the input goes to high impedance. This prevents "floating" inputs and eliminates the need for pull-up/down resistors.
FUNCTIONAL BLOCK DIAGRAM
1O E
3O E
1A 1
1Y 1
3A 1 3A 2
3Y 1 3Y 2
1A 2
1Y 2
1A 3 1A 4
1Y 3
3A 3
3Y 3 3Y 4
1Y 4
3A 4
2O E
4O E
2A 1 2A 2
2Y 1
4A 1 4A 2
4Y 1 4Y 2
2Y 2
2A 3
2Y 3 2Y 4
4A 3
4Y 3
2A 4
4A 4
4Y 4
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
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(c) 2002 Integrated Device Technology, Inc.
MAY 2002
DSC-5463/2
IDT74FCT162H244AT/CT FAST CMOS 16-BIT BUFFER/LINE DRIVER
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
ABSOLUTE MAXIMUM RATINGS(1)
Symbol VTERM(2)
2OE 1A1 1A2
Description Terminal Voltage with Respect to GND Terminal Voltage with Respect to GND Storage Temperature DC Output Current
Max -0.5 to 7 -0.5 to VCC+0.5 -65 to +150 -60 to +120
Unit V V C mA
1OE 1Y1 1Y2
VTERM(3) TSTG IOUT
GND
1Y3 1Y4
GND
1A3 1A4
VCC
2Y1 2Y2
VCC
2A1 2A2
NOTES: 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. 2. All device terminals except FCT162XXX Output and I/O terminals. 3. Output and I/O terminals for FCT162XXXT and FCT166XXXT.
CAPACITANCE (TA = +25C, f = 1.0MHz)
Symbol CIN COUT Parameter(1) Input Capacitance Output Capacitance Conditions VIN = 0V VOUT = 0V Typ. 3.5 3.5 Max. 6 8 Unit pF pF
GND
2Y3 2Y4 3Y1 3Y2
GND
2A3 2A4 3A1 3A2
NOTE: 1. This parameter is measured at characterization but not tested.
PIN DESCRIPTION
Pin Names xOE xAx xYx Description 3-State Outputs Enable Input (Active LOW) Data Inputs(1) 3-State Outputs
GND
3Y3 3Y4
GND
3A3 3A4
VCC
4Y1 4Y2
VCC
4A1 4A2
NOTE: 1. These pins have "Bus-hold". All other pins are standard inputs, outputs, or I/Os.
FUNCTION TABLE(1, 2)
Inputs xOE L L H
NOTES: 1. H = HIGH Voltage Level X = Don't Care L = LOW Voltage Level Z = High-Impedance
GND
4Y3 4Y4 4OE
GND
4A3 4A4 3OE
Output xAx L H X xYx L H Z
SSOP/ TSSOP TOP VIEW
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IDT74FCT162H244AT/CT FAST CMOS 16-BIT BUFFER/LINE DRIVER
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Industrial: TA = -40C to +85C, VCC = 5.0V 10%
Symbol VIH VIL IIH Parameter Input HIGH Level Input LOW Level Input Standard Input(5) HIGH Standard I/O(5) (4) Current Bus-hold Input Bus-hold I/O Input Standard Input(5) LOW Standard I/O(5) (4) Current Bus-hold Input Bus-hold I/O Bus-hold Sustain Bus-hold Input Current(4) High Impedance Output Current (3-State Output pins)(5, 6) Clamp Diode Voltage Short Circuit Current Input Hysteresis Quiescent Power Supply Current Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max. VI = VCC Min. 2 -- -- -- -- -- -- -- -- -- -50 50 -- -- -- -80 -- -- Typ.(2) -- -- -- -- -- -- -- -- -- -- -- -- -- -- -0.7 -140 100 5 Max. -- 0.8 1 1 100 100 1 1 100 100 -- -- 1 1 -1.2 -250 -- 500 Unit V V A
IIL
VI = GND
IBHH IBHL IOZH IOZL VIK IOS VH ICCL ICCH ICCZ
VCC = Min.
VI = 2.0V VI = 0.8V VCC = Max. VO = 2.7V VO = 0.5V VCC = Min., IIN = -18mA VCC = Max., VO = GND(3) -- VCC = Max. VIN = GND or VCC
A A V mA mV A
OUTPUT DRIVE CHARACTERISTICS
Symbol IODL IODH VOH VOL Parameter Output LOW Current Output HIGH Current Output HIGH Voltage Output LOW Voltage Test Conditions(1) VCC = 5V, VIN = VIH or VIL, VO = 1.5V(3) VCC = 5V, VIN = VIH or VIL, VCC = Min. VIN = VIH or VIL VCC = Min. VIN = VIH or VIL
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, +25C 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. This test limit for this parameter is 5A at TA = -55C. 6. Does not include Bus-hold I/O pins.
Min. 60 -60
Typ.(2) 115 -115 3.3 0.3
Max. 200 -200 -- 0.55
Unit mA mA V V
VO = 1.5V(3) IOH = -24mA IOH = 24mA
2.4 --
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IDT74FCT162H244AT/CT FAST CMOS 16-BIT BUFFER/LINE DRIVER
INDUSTRIAL TEMPERATURE RANGE
POWER SUPPLY CHARACTERISTICS
Symbol ICC ICCD Parameter Quiescent Power Supply Current TTL Inputs HIGH Dynamic Power Supply Current(4) Test Conditions(1) VCC = Max. VIN = 3.4V(3) VCC = Max. Outputs Open xOE = GND One Input Toggling 50% Duty Cycle VCC = Max. Outputs Open fi = 10MHz 50% Duty Cycle xOE = GND One Bit Toggling VCC = Max. Outputs Open fi = 2.5MHz 50% Duty Cycle xOE = GND Sixteen Bits Toggling Min. -- -- Typ.(2) 0.5 60 Max. 1.5 100 Unit mA A/ MHz
VIN = VCC VIN = GND
IC
Total Power Supply Current(6)
VIN = VCC VIN = GND VIN = 3.4V VIN = GND VIN = VCC VIN = GND VIN = 3.4V VIN = GND
--
0.6
1.5
mA
--
0.9
2.3
--
2.4
4.5(5)
--
6.4
16.5(5)
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, +25C ambient. 3. Per TTL driven input (VIN = 3.4V). All other inputs at VCC 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 ICC formula. These limits are guaranteed but not tested. 6. IC = IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC + ICC DHNT + ICCD (fCPNCP/2 + fiNi) ICC = Quiescent Current (ICCL, ICCH and ICCZ) ICC = Power Supply Current for a TTL High Input (VIN = 3.4V) DH = Duty Cycle for TTL Inputs High NT = Number of TTL Inputs at DH ICCD = Dynamic Current caused by an Input Transition Pair (HLH or LHL) fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices) NCP = Number of Clock Inputs at fCP fi = Input Frequency Ni = Number of Inputs at fi
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ tSK(o) Parameter Propagation Delay xAx to xYx Output Enable Time Output Disable Time Output Skew(3) Condition(1) CL = 50pF RL = 500 FCT162H244AT Min.(2) Max. 1.5 4.8 1.5 1.5 -- 6.2 5.6 0.5 FCT162H244CT Min.(2) Max. 1.5 3.6 1.5 1.5 -- 4.4 4.1 0.5 Unit ns ns ns ns
NOTES: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.
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IDT74FCT162H244AT/CT FAST CMOS 16-BIT BUFFER/LINE DRIVER
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS AND WAVEFORMS
V CC 7.0V 500 V IN Pulse Generator D.U.T. 50pF RT 500 CL V O UT
SWITCH POSITION
Test Open Drain Disable Low Enable Low All Other Tests Switch Closed Open
DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
Test Circuits for All Outputs
3V 1.5V 0V 3V 1.5V 0V 3V 1.5V 0V 3V 1.5V 0V
DATA INPUT tSU TIMING INPUT ASYNCHRONOUS CONTROL PRESET CLEAR ETC. SYNCHRONOUS CONTROL PRESET CLEAR CLOCK ENABLE ETC. tREM
tH
LOW -HIGH-LOW PULSE tW HIGH-LOW -HIGH PULSE
1.5V
1.5V
tSU
tH
Pulse Width
Set-up, Hold, and Release Times
ENAB LE SAM E PHASE INPUT TRANSITION tPLH OUTPUT tPLH OPPOSITE PHASE INPUT TRANSITION tPHL tPHL 3V 1.5V 0V VOH 1.5V VOL 3V 1.5V 0V DISABLE 3V CONTROL INPUT tPZL OUTPUT NORM ALLY LOW SW ITCH CLOSED tPZH OUTPUT NORM ALLY HIGH SW ITCH OPEN 3.5V 1.5V 0.3V tPHZ 0.3V 1.5V 0V 0V VOH tPLZ 1.5V 0V 3.5V VOL
Propagation Delay
Enable and Disable Times
NOTES: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH. 2. Pulse Generator for All Pulses: Rate 1.0MHz; tF 2.5ns; tR 2.5ns.
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IDT74FCT162H244AT/CT FAST CMOS 16-BIT BUFFER/LINE DRIVER
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
IDT FCT XX Temp. Range XXX Family XXXX X Bus Hold Device Type XX Package
PV PA
Shrink Small Outline Package Thin Shrink Small Outline Package
244AT 244CT
16-Bit Buffer/Line Driver
H
Bus-hold
162
Double-Density, 5 Volt, Balanced Drive
74
- 40C to +85C
DATA SHEET DOCUMENT HISTORY 4/11/2002 Removed blank speed option 5/21/2002 Removed TVSOP package
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for Tech Support: logichelp@idt.com (408) 654-6459
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