54FCT240CTDB [IDT]
CDIP-20, Tube;
| 型号： | 54FCT240CTDB |
| 厂家： | 
INTEGRATED DEVICE TECHNOLOGY |
| 描述： | CDIP-20, Tube 驱动 CD 逻辑集成电路 |
| 文件： | 总7页 (文件大小：204K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
FAST CMOS OCTAL
BUFFER/LINE DRIVER
IDT54/74FCT240AT/CT
FEATURES:
DESCRIPTION:
• A and C grades
• Low input and output leakage ≤1µA (max.)
• CMOS power levels
• True TTL input and output compatibility:
– VOH = 3.3V (typ.)
The IDT octal buffer/line driver is built using an advanced dual metal
CMOStechnology. TheFCT240Tisdesignedtobeemployedasamemory
and address driver, clock driver, and bus-oriented transmitter/ receiver
which provides improved board density.
– VOL = 0.3V (typ.)
• High Drive outputs (-15mA IOH, 64mA IOL)
• Meets or exceeds JEDEC standard 18 specifications
• Military product compliant to MIL-STD-883, Class B and DESC
listed (dual marked)
• Power off disable outputs permit "live insertion"
• Available in the following packages:
– Industrial: SOIC, SSOP, QSOP
– Military: CERDIP, LCC
FUNCTIONALBLOCKDIAGRAM
OEA
OE
OA
DB
OA
DB
OA
DB
OA
DB
B
0
DA
OB
DA
OB
DA
OB
DA
OB
0
0
0
1
1
1
1
2
2
2
2
3
3
3
3
TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
SEPTEMBER 2009
1
DSC-5584/8
IDT54/74FCT240AT/CT
FASTCMOSOCTALBUFFER/LINEDRIVER
MILITARYANDINDUSTRIALTEMPERATURERANGES
PINCONFIGURATION
INDEX
20
19
18
17
16
15
14
13
12
11
1
OE
A
V
CC
DA
0
2
3
4
OE
OA
DB
OA
DB
OA
DB
OA
DB
B
0
OB
DA
OB
DA
OB
DA
0
1
1
2
2
3
3 2
20 19
18
OA
DB
OA
DB
OA
0
0
DA
OB
DA
OB
DA
1
4
5
6
7
8
1
17
16
15
14
0
1
5
1
2
2
3
1
6
1
1
7
2
2
8
2
9 10 11 12
1
9
3
OB
3
3
GND
10
3
LCC
TOP VIEW
CERDIP/ SOIC/ SSOP/ QSOP
TOP VIEW
ABSOLUTEMAXIMUMRATINGS(1)
PINDESCRIPTION
Symbol
Description
Max
Unit
V
Pin Names
Description
(2)
VTERM
Terminal Voltage with Respect to GND
–0.5 to +7
OEA, OEB
Dxx
3-State Output Enable Inputs (Active LOW)
(3)
VTERM
Terminal Voltage with Respect to GND –0.5 to VCC+0.5
V
Inputs
TSTG
IOUT
Storage Temperature
DC Output Current
–65 to +150
–60 to +120
° C
mA
Oxx
Outputs
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. No terminal voltage may exceed
Vcc by +0.5V unless otherwise noted.
FUNCTIONTABLE(1)
Inputs
2. Inputs and Vcc terminals only.
3. Output and I/O terminals only.
OEA
L
OEB
L
D
L
Outputs
H
L
Z
L
L
H
X
H
H
CAPACITANCE (TA = +25°C, F = 1.0MHz)
NOTE:
1. H = HIGH Voltage Level
X = Don’t Care
L = LOW Voltage Level
Z = High Impedance
Symbol
CIN
Parameter(1)
Input Capacitance
Output Capacitance
Conditions
VIN = 0V
Typ.
6
Max. Unit
10
12
pF
pF
COUT
VOUT = 0V
8
NOTE:
1. This parameter is measured at characterization but not tested.
2
IDT54/74FCT240AT/CT
FASTCMOSOCTALBUFFER/LINEDRIVER
MILITARYANDINDUSTRIALTEMPERATURERANGES
DCELECTRICALCHARACTERISTICSOVEROPERATINGRANGE
FollowingConditionsApplyUnlessOtherwiseSpecified:
Industrial: TA = –40°C to +85°C, VCC = 5.0V ±5%; Military: TA = –55°C to +125°C, VCC = 5.0V ±10%
Symbol
VIH
Parameter
Input HIGH Level
Test Conditions(1)
Guaranteed Logic HIGH Level
Min.
2
Typ.(2)
—
Max.
—
0.8
1
Unit
V
VIL
Input LOW Level
Guaranteed Logic LOW Level
VCC = Max.
—
—
—
—
—
—
—
—
—
—
V
IIH
Input HIGH Current(4)
Input LOW Current(4)
High Impedance Output Current
VI = 2.7V
VI = 0.5V
VO = 2.7V
VO = 0.5V
—
µA
µA
µA
IIL
VCC = Max.
—
1
IOZH
IOZL
VCC = Max
—
1
(4)
(3-State output pins)
—
1
II
Input HIGH Current(4)
VCC = Max., VI = VCC (Max.)
VCC = Min, IIN = -18mA
—
1
µA
V
VIK
VH
ICC
ClampDiodeVoltage
–0.7
200
0.01
–1.2
—
1
Input Hysteresis
—
mV
mA
Quiescent Power Supply Current
VCC = Max., VIN = GND or VCC
OUTPUTDRIVECHARACTERISTICS
Symbol
Parameter
Test Conditions(1)
Min.
Typ.(2)
Max.
Unit
VOH
OutputHIGHVoltage
VCC = Min
IOH = –6mA MIL
IOH = –8mA IND
IOH = –12mA MIL
IOH = –15mA IND
IOL = 48mA MIL
IOL = 64mA IND
2.4
3.3
—
VIN = VIH or VIL
V
2
3
—
VOL
IOS
Output LOWVoltage
Short Circuit Current
VCC = Min
—
–60
0.3
0.55
–225
V
VIN = VIH or VIL
(3)
VCC = Max., VO = GND
–120
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
IDT54/74FCT240AT/CT
FASTCMOSOCTALBUFFER/LINEDRIVER
MILITARYANDINDUSTRIALTEMPERATURERANGES
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
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
Eight 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 (fCP/2+ 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 fi
All currents are in milliamps and all frequencies are in megahertz.
SWITCHINGCHARACTERISTICSOVEROPERATINGRANGE
FCT240AT
FCT240CT
Ind.
Mil.
Ind.
Mil.
Symbol
tPLH
Parameter
PropagationDelay
Dx to Ox
Condition(1)
CL = 50pF
RL = 500Ω
Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Unit
1.5
1.5
1.5
4.8
6.2
5.6
1.5
1.5
1.5
5.1
6.5
5.9
1.5
1.5
1.5
4.3
5.8
5.2
1.5
1.5
1.5
4.7
6.5
5.7
ns
ns
ns
tPHL
tPZH
OutputEnableTime
tPZL
tPHZ
OutputDisableTime
tPLZ
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
4
IDT54/74FCT240AT/CT
FASTCMOSOCTALBUFFER/LINEDRIVER
MILITARYANDINDUSTRIALTEMPERATURERANGES
TESTCIRCUITSANDWAVEFORMS
V
CC
7.0V
SWITCHPOSITION
500W
Test
Switch
Closed
Open
V
OUT
V
IN
Open Drain
Disable Low
Enable Low
Pulse
Generator
D.U.T
.
50pF
500W
All Other Tests
T
R
L
C
DEFINITIONS:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
Octal Link
Test Circuits for All Outputs
3V
DATA
1.5V
INPUT
0V
LOW-HIGH-LOW
PULSE
tH
tSU
1.5V
1.5V
3V
1.5V
0V
TIMING
INPUT
tW
ASYNCHRONOUS CONTROL
tREM
PRESET
3V
1.5V
0V
CLEAR
HIGH-LOW-HIGH
PULSE
ETC.
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
Propagation Delay
Octal Link
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
IDT54/74FCT240AT/CT
FASTCMOSOCTALBUFFER/LINEDRIVER
MILITARYANDINDUSTRIALTEMPERATURERANGES
ORDERINGINFORMATION
XXXX
XX
X
XX
FCT
Package
Process
Device Type
Temp. Range
Blank
B
Industrial
MIL-STD-883, Class B
Industrial Options
Small Outline IC - Green
Shrink Small Outline Package - Green
Quarter-size Small Outline Package - Green
SOG
PYG
QG
Military Options
CERDIP
Leadless Chip Carrier
D
L
Fast CMOS Octal Buffer/Line Driver
240AT
240CT
54
74
– 55°C to +125°C
– 40°C to +85°C
DatasheetDocumentHistory
09/29/09 Pg. 6
Updatedthe orderinginformationbyremovingthe "IDT"notationandnonRoHSpart.
6
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