IDT74FCT540ATQG8 [IDT]
Bus Driver, FCT Series, 1-Func, 8-Bit, Inverted Output, CMOS, PDSO20, QSOP-20;
| 型号： | IDT74FCT540ATQG8 |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | Bus Driver, FCT Series, 1-Func, 8-Bit, Inverted Output, CMOS, PDSO20, QSOP-20 驱动 光电二极管 输出元件 逻辑集成电路 |
| 文件： | 总6页 (文件大小：67K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
FAST CMOS OCTAL
BUFFER/LINE DRIVER
IDT74FCT540AT/CT
DESCRIPTION:
FEATURES:
The IDT octal buffer/line driver is built using an advanced dual metal
CMOS technology. The FCT540T is similar in function to the FCT240T,
exceptthattheinputsandoutputsareonoppositesidesofthepackage. This
pinoutarrangementmakesthesedevicesespeciallyusefulasoutputports
formicroprocessors andas backplanedrivers,allowingeaseoflayoutand
greater board density.
• A and C grades
• Low input and output leakage ≤1µA (max.)
• CMOS power levels
• True TTL input and output compatibility:
– VOH = 3.3V (typ.)
– VOL = 0.3V (typ.)
• High Drive outputs (-15mA IOH, 64mA IOL)
• Meets or exceeds JEDEC standard 18 specifications
• Power off disable outputs permit "live insertion"
• Available in SOIC, SSOP, and QSOP packages
FUNCTIONALBLOCKDIAGRAM
OEA
OEB
D0
D1
D2
D3
D4
D5
D6
D7
O0
O1
O2
O3
O4
O5
O6
O7
TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.
INDUSTRIAL TEMPERATURE RANGE
OCTOBER 2009
1
© 2009 Integrated Device Technology, Inc.
DSC-5588/6
IDT74FCT540AT/CT
FASTCMOSOCTALBUFFER/LINEDRIVER
INDUSTRIALTEMPERATURERANGE
ABSOLUTEMAXIMUMRATINGS(1)
PINCONFIGURATION
Symbol
Description
Max
Unit
V
(2)
VTERM
Terminal Voltage with Respect to GND
–0.5 to +7
(3)
VTERM
Terminal Voltage with Respect to GND –0.5 to VCC+0.5
V
20
19
18
17
16
15
14
13
12
11
1
OE
A
V
CC
TSTG
IOUT
Storage Temperature
DC Output Current
–65 to +150
–60 to +120
° C
mA
D
0
2
3
4
OE
B
NOTES:
O
O
O
0
1
2
D
D
D
D
D
D
1
2
3
4
5
6
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
Vcc by +0.5V unless otherwise noted.
5
6
O
O
O
O
3
4
5
2. Inputs and Vcc terminals only.
3. Output and I/O terminals only.
7
8
9
6
7
D
7
CAPACITANCE (TA = +25°C, F = 1.0MHz)
GND
10
O
Symbol
CIN
Parameter(1)
Input Capacitance
Output Capacitance
Conditions
VIN = 0V
Typ.
6
Max. Unit
10
12
pF
pF
COUT
VOUT = 0V
8
SOIC/ SSOP/ QSOP
TOP VIEW
NOTE:
1. This parameter is measured at characterization but not tested.
PINDESCRIPTION
Pin Names
Description
OEA, OEB
Dx
3-State Output Enable Inputs (Active LOW)
Inputs
Ox
Outputs
FUNCTIONTABLE(1)
Inputs
OEA
L
OEB
L
D
L
Outputs
H
L
Z
L
L
H
X
H
H
NOTE:
1. H = HIGH Voltage Level
X = Don’t Care
L = LOW Voltage Level
Z = High Impedance
2
IDT74FCT540AT/CT
FASTCMOSOCTALBUFFER/LINEDRIVER
INDUSTRIALTEMPERATURERANGE
DCELECTRICALCHARACTERISTICSOVEROPERATINGRANGE
FollowingConditionsApplyUnlessOtherwiseSpecified:
Industrial: TA = –40°C to +85°C, VCC = 5.0V ±5%
Symbol
VIH
VIL
Parameter
Input HIGH Level
Test Conditions(1)
Guaranteed Logic HIGH Level
Min.
2
Typ.(2)
—
Max.
—
0.8
1
Unit
V
Input LOW Level
Guaranteed Logic LOW Level
VCC = Max.
—
—
—
—
—
—
—
—
—
—
V
IIH
Input HIGH Current(4)
Input LOW Current(4)
High Impedance Output Current(4)
VI = 2.7V
VI = 0.5V
VI = 2.7V
VI = 0.5V
—
µA
µA
µA
IIL
VCC = Max.
—
1
IOZH
IOZL
II
VCC = Max.
—
1
(4)
(3-State Output pins)
—
1
Input HIGH Current(4)
Clamp Diode Voltage
Input Hysteresis
VCC = Max., VI = VCC (Max.)
VCC = Min., IIN = –18mA
—
1
µA
V
VIK
VH
–0.7
200
0.01
–1.2
—
1
—
mV
mA
ICC
Quiescent Power Supply Current
VCC = Max.
VIN = GND or VCC
OUTPUTDRIVECHARACTERISTICS
Symbol
Parameter
Test Conditions(1)
IOH = –8mA
Min.
2.4
2
Typ.(2)
3.3
Max.
—
Unit
VOH
OutputHIGHVoltage
VCC = Min
V
VIN = VIH or VIL
VCC = Min
IOH = –15mA
IOL = 64mA
3
—
VOL
IOS
Output LOWVoltage
Short Circuit Current
—
0.3
0.55
V
VIN = VIH or VIL
(3)
VCC = Max., VO = GND
–60
–120
–225
mA
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 tested at one time. Duration of the test should not exceed one second.
4. The test limit for this parameter is ±5µA at TA = –55°C.
3
IDT74FCT540AT/CT
FASTCMOSOCTALBUFFER/LINEDRIVER
INDUSTRIALTEMPERATURERANGE
POWERSUPPLYCHARACTERISTICS
Symbol
Parameter
Test Conditions(1)
Min.
Typ.(2)
Max.
Unit
ΔICC
Quiescent Power Supply Current
TTL Inputs HIGH
VCC = Max.
VIN = 3.4V
—
0.5
2
mA
(3)
ICCD
IC
Dynamic Power Supply
Current(4)
VCC = Max.
Outputs Open
OEA = OEB = GND
One Input Toggling
50% Duty Cycle
VIN = VCC
VIN = GND
—
0.15
0.25
mA/
MHz
Total Power Supply Current(6)
VCC = Max.
Outputs Open
fi = 10MHz
VIN = VCC
VIN = GND
—
—
—
—
1.5
1.8
3
3.5
4.5
mA
mA
50% Duty Cycle
OEA = OEB = GND
One Bit Toggling
VIN = 3.4V
VIN = GND
(5)
6
VCC = Max.
Outputs Open
fi = 2.5MHz
VIN = VCC
VIN = GND
(5)
14
50% Duty Cycle
OEA = OEB = GND
Four Bits Toggling
VIN = 3.4V
VIN = GND
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, +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 ΔICC formula. These limits are guaranteed but not tested.
6. IC = IQUIESCENT + IINPUTS + IDYNAMIC
IC = ICC + ΔICC DHNT + ICCD (fiNi)
ICC = Quiescent Current
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)
fi = Output Frequency
Ni = Number of Outputs at fO
All currents are in milliamps and all frequencies are in megahertz.
SWITCHINGCHARACTERISTICSOVEROPERATINGRANGE
FCT540AT
FCT540CT
Symbol
tPLH
Parameter
Condition(1)
CL = 50pF
RL = 500Ω
Min.(2)
Max.
Min.(2)
Max.
Unit
PropagationDelay
Dx to Ox
1.5
4.8
1.5
4.3
5.8
5.2
ns
tPHL
tPZH
OutputEnableTime
1.5
1.5
6.2
5.6
1.5
1.5
ns
ns
tPZL
tPHZ
OutputDisableTime
tPLZ
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
4
IDT74FCT540AT/CT
FASTCMOSOCTALBUFFER/LINEDRIVER
INDUSTRIALTEMPERATURERANGE
TESTCIRCUITSANDWAVEFORMS
V
CC
SWITCHPOSITION
7.0V
Test
Switch
Closed
Open
500W
Open Drain
Disable Low
Enable Low
V
OUT
V
IN
Pulse
Generator
D.U.T
.
All Other Tests
50pF
500W
T
R
DEFINITIONS:
CL = Load capacitance: includes jig and probe capacitance.
L
C
RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
Octal Link
Test Circuits for All Outputs
3V
DATA
1.5V
0V
INPUT
LOW-HIGH-LOW
t
H
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
CLOCK ENABLE
ETC.
Pulse Width
Octal Link
Octal Link
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
Octal Link
Octal Link
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
IDT74FCT540AT/CT
FASTCMOSOCTALBUFFER/LINEDRIVER
INDUSTRIALTEMPERATURERANGE
ORDERINGINFORMATION
X
X
FCT
XX
Device
Type
Package
Temperature
Range
SOG
PYG
QG
Small Outline IC - Green
Shrink Small Outline Package - Green
Quarter-size Small Outline Package - Green
540AT Fast CMOS Octal Buffer/Line Driver
540CT
74
› 40°C to +85°C
DatasheetDocumentHistory
10/10/09 Pg. 6
Updatedthe orderinginformationbyremovingthe "IDT"notationandnonRoHSpart.
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www.idt.com
6
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