74FCT166244CTPVG8 [IDT]
SSOP-48, Reel;
| 型号： | 74FCT166244CTPVG8 |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | SSOP-48, Reel |
| 文件： | 总6页 (文件大小：75K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
IDT74FCT166244AT/CT
FAST CMOS 16-BIT
BUFFER/LINE DRIVER
DESCRIPTION:
FEATURES:
The FCT166244T 16-BitBuffer/Line Driveris forbus interface orsignal
bufferingapplicationsrequiringhighspeedandlowpowerdissipation. These
deviceshaveaflowthroughpinorganization,andshrinkpackagingtosimplify
board layout. All inputs are designed with hysteresis for improved noise
margin. Thethree-statecontrolsallowindependent4-bit,8-bitorcombined16-
bit operation. These parts are plug in replacements for ABT16244 where
higher speed, lower noise or lower power dissipation levels are desired.
The FCT166244T is suited for very low noise, point-to-point driving
wherethereis asinglereceiver,oraverylightlumpedload(<100pF). The
buffersaredesignedtolimittheoutputcurrenttolevelswhichwillavoidnoise
and ringing on the signal lines without using external series terminating
resistors.
• 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.)
• Light drive balanced output of ±8mA
• Minimal system switching noise
• Typical VOLP (Output Ground Bounce) < 0.25V at VCC = 5V,
TA = 25°C
• Power off disable outputs permit “live insertion”
• Available in SSOP package
FUNCTIONALBLOCKDIAGRAM
1OE
3OE
1
Y
1
1
1
A
1
2
3
A
1
3
Y
1
2
3A
2
3
Y
A
1
1
Y
2
3
Y
3A
3
4
1
1
A
3
4
3
3
Y
3
4
A
Y
1
Y
4
3A
2OE
4OE
2
Y
1
4
A
A
A
1
2
3
2
A
1
2
4
4
4
Y
Y
Y
1
2
3
4
4
2
2
A
2
2
2
Y
Y
Y
2
3
4
A
A
3
4
4A
4
2
4
Y
4
TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.
INDUSTRIAL TEMPERATURE RANGE
SEPTEMBER 2009
1
2009 Integrated Device Technology, Inc.
DSC-5462/6
IDT74FCT166244AT/CT
FASTCMOS16-BITBUFFER/LINEDRIVER
INDUSTRIALTEMPERATURERANGE
ABSOLUTE MAXIMUM RATINGS(1)
PINCONFIGURATION
Symbol
Description
Max
Unit
V
(2)
VTERM
Terminal Voltage with Respect to GND
–0.5 to +7
1
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1
OE
2
OE
(3)
VTERM
Terminal Voltage with Respect to GND –0.5 to VCC+0.5
V
2
1
Y
1
2
1A
1
2
TSTG
IOUT
Storage Temperature
DC Output Current
–65 to +150
–60 to +120
° C
mA
3
1
Y
1
A
NOTES:
GND
4
GND
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.
5
1
Y
3
4
1A
3
6
1
Y
1
A
4
2. All device terminals except FCT162XXX Output and I/O terminals.
3. Output and I/O terminals for FCT162XXX.
V
CC
7
V
CC
8
2
2
Y
1
2
2A
1
9
2
A
2
Y
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
GND
GND
CAPACITANCE (TA = +25°C, F = 1.0MHz)
Symbol
CIN
Parameter(1)
Conditions
VIN = 0V
Typ.
3.5
Max. Unit
2
2
3
3
A
A
A
A
3
4
1
2
2
2
3
3
Y3
Y4
Y1
Y2
Input Capacitance
Output Capacitance
6
8
pF
pF
COUT
VOUT = 0V
3.5
NOTE:
1. This parameter is measured at characterization but not tested.
GND
GND
3
3
A
3
3
3
Y
3
4
Y
A
4
PINDESCRIPTION
V
CC
V
CC
Pin Names
xOE
Description
3-StateOutputEnableInputs(ActiveLOW)
DataInputs
4A
1
4
4
Y
1
2
xAx
xYx
3-StateOutputs
4
A
2
Y
GND
GND
4
4
A
3
4
4
4
Y
3
4
A
Y
FUNCTIONTABLE(1)
4OE
3OE
Inputs
Outputs
xOE
L
xAx
L
xYx
L
SSOP
TOP VIEW
L
H
H
H
X
Z
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
Z = High-Impedance
2
IDT74FCT166244AT/CT
FASTCMOS16-BITBUFFER/LINEDRIVER
INDUSTRIALTEMPERATURERANGE
DCELECTRICALCHARACTERISTICSOVEROPERATINGRANGE
FollowingConditionsApplyUnlessOtherwiseSpecified:
Industrial: TA = –40°C to +85°C, VCC = 5.0V ±10%
Symbol
VIH
Parameter
Input HIGH Level
Test Conditions(1)
GuaranteedLogicHIGHLevel
Min.
2
Typ.(2)
—
Max.
—
Unit
V
VIL
InputLOWLevel
GuaranteedLogicLOWLevel
VCC = Max.
—
—
—
—
—
—
—
—
–80
—
—
—
0.8
±1
V
IIH
InputHIGHCurrent(Inputpins)(5)
Input HIGH Current (I/O pins)(5)
InputLOWCurrent(Inputpins)(5)
InputLOWCurrent(I/Opins)(5)
HighImpedanceOutputCurrent
VI = VCC
—
µA
—
±1
IIL
VI = GND
—
±1
—
±1
IOZH
IOZL
VIK
IOS
VCC = Max.
VO = 2.7V
VO = 0.5V
—
±1
µ A
(5)
(3-StateOutputpins)
—
±1
ClampDiodeVoltage
ShortCircuitCurrent
VCC = Min., IIN = –18mA
–0.7
–140
100
5
–1.2
–250
—
V
(3)
VCC = Max., VO = GND
mA
mV
µ A
VH
InputHysteresis
—
ICCL
ICCH
ICCZ
QuiescentPowerSupplyCurrent
VCC = Max.
VIN = GND or VCC
500
OUTPUTDRIVECHARACTERISTICS
Symbol
IODL
Parameter
OutputLOWCurrent
Output HIGH Current
OutputHIGHVoltage
Test Conditions(1)
Min.
Typ.(2) Max.
Unit
(3)
VCC = 5V, VIN = VIH or VIL, VO = 1.5V
16
–16
2.4
48
–48
3.3
96
–96
—
mA
mA
V
(3)
IODL
VCC = 5V, VIN = VIH or VIL, VO = 1.5V
VOH
VCC = Min.
IOH = –8mA
VIN = VIH or VIL
VCC = Min.
VOH
OutputLOWVoltage
IOL = 8mA
—
0.3
0.55
V
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, +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.
3
IDT74FCT166244AT/CT
FASTCMOS16-BITBUFFER/LINEDRIVER
INDUSTRIALTEMPERATURERANGE
POWERSUPPLYCHARACTERISTICS
Symbol
Parameter
Quiescent Power Supply
CurrentTTLInputs HIGH
DynamicPowerSupplyCurrent(4)
TestConditions(1)
Min.
Typ.(2)
Max.
Unit
ΔICC
VCC = Max.
VIN = 3.4V
—
0.5
1.5
mA
(3)
ICCD
VCC = Max.,
VIN = VCC
—
60
100
µ A /
OutputsOpen
VIN = GND
MHz
xOE = GND
OneInputToggling
50% Duty Cycle
VCC = Max.,
IC
TotalPowerSupplyCurrent(6)
VIN = VCC
VIN = GND
—
—
—
—
0.6
0.9
2.4
6.4
1.5
2.3
mA
OutputsOpen
fCP = 10MHz (CLKBA)
50% Duty Cycle
xOE = GND
VIN = 3.4V
VIN = GND
OneBitToggling
VCC = Max.,
OutputsOpen
fi = 2.5MHz
50% Duty Cycle
xOE = GND
VIN = VCC
VIN = GND
4.5(5)
(5)
VIN = 3.4V
VIN = GND
16.5
SixteenBitsToggling
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. 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 + ΔICC DHNT + ICCD (fCPNCP/2 + fiNi)
ICC = Quiescent Current (ICCL, ICCH and ICCZ)
ΔICC = 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
SWITCHINGCHARACTERISTICSOVEROPERATINGRANGE
74FCT166244AT
74FCT166422CT
Symbol
tPLH
Parameter
PropagationDelay
Condition(1)
CL = 50pF
RL = 500Ω
Min.(2)
Max.
Min.(2)
Max.
Unit
1.5
4.8
1.5
1.5
1.5
—
4.1
ns
ns
ns
ns
tPHL
xAx to xYx
tPZH
OutputEnableTime
1.5
1.5
—
6.2
5.6
0.5
5.8
5.2
0.5
tPZL
tPHZ
OutputDisableTime
tPLZ
(3)
tSK(o)
OutputSkew
NOTES:
1. See test circuits 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.
4
IDT74FCT166244AT/CT
FASTCMOS16-BITBUFFER/LINEDRIVER
INDUSTRIALTEMPERATURERANGE
TESTCIRCUITSANDWAVEFORMS
V
CC
SWITCHPOSITION
7.0V
Test
Switch
Closed
Open
500Ω
500Ω
Open Drain
Disable Low
Enable Low
V
OUT
V
IN
Pulse
Generator
D.U.T.
50pF
All Other Tests
RT
DEFINITIONS:
CL
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
DATA
1.5V
INPUT
0V
LOW-HIGH-LOW
tH
tSU
1.5V
PULSE
3V
1.5V
0V
TIMING
INPUT
ASYNCHRONOUS CONTROL
tW
tREM
PRESET
CLEAR
ETC.
3V
1.5V
0V
HIGH-LOW-HIGH
PULSE
1.5V
SYNCHRONOUS CONTROL
PRESET
3V
1.5V
0V
CLEAR
tSU
t
H
Pulse Width
CLOCK ENABLE
ETC.
Set-up, Hold, and Release Times
ENABLE
DISABLE
3V
1.5V
0V
3V
SAME PHASE
CONTROL
INPUT
1.5V
0V
INPUT TRANSITION
t
PLH
t
PHL
PHL
t
PZL
tPLZ
VOH
OUTPUT
3.5V
1.5V
3.5V
1.5V
OUTPUT
NORMALLY
LOW
SWITCH
CLOSED
VOL
tPLH
t
0.3V
0.3V
VOL
3V
1.5V
0V
tPZH
tPHZ
OPPOSITE PHASE
INPUT TRANSITION
VOH
OUTPUT
NORMALLY
HIGH
SWITCH
OPEN
1.5V
0V
0V
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.
5
IDT74FCT166244AT/CT
FASTCMOS16-BITBUFFER/LINEDRIVER
INDUSTRIALTEMPERATURERANGE
ORDERINGINFORMATION
XX
FCT
XXXX
XXX
XX
Temp. Range
Family
Package
Device Type
PVG
Shrink Small Outline Package - Green
16-Bit Buffer/Line Driver
244AT
244CT
166
74
16-Bit, 5 Volt, Light Drive
40 C to +85 C
DatasheetDocumentHistory
09/06/09 Pg.6
Updatedthe orderinginformationbyremovingthe "IDT"notationandnonRoHSpart.
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www.idt.com
6
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