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(R)
FAST CMOS OCTAL BUFFER/LINE DRIVER
Integrated Device Technology, Inc.
IDT54/74FCT240/A/C IDT54/74FCT241/A/C IDT54/74FCT244/A/C IDT54/74FCT540/A/C IDT54/74FCT541/A/C
FEATURES:
* IDT54/74FCT240/241/244/540/541 equivalent to FASTTM speed and drive * IDT54/74FCT240A/241A/244A/540A/541A 25% faster than FAST * IDT54/74FCT240C/241C/244C/540C/541C up to 55% faster than FAST * IOL = 64mA (commercial) and 48mA (military) * CMOS power levels (1mW typ. static) * Product available in Radiation Tolerant and Radiation Enhanced versions * Military product compliant to MIL-STD-883, Class B * Meets or exceeds JEDEC Standard 18 specifications
DESCRIPTION:
The IDT octal buffer/line drivers are built using an advanced dual metal CMOS technology. The IDT54/74FCT240/A/C, IDT54/74FCT241/A/C and IDT54/74FCT244/A/C are designed to be employed as memory and address drivers, clock drivers and bus-oriented transmitter/receivers which provide improved board density. The IDT54/74FCT540/A/C and IDT54/74FCT541/A/C are similar in function to the IDT54/74FCT240/A/C and IDT54/ 74FCT244/A/C, respectively, except that the inputs and outputs are on opposite sides of the package. This pinout arrangement makes these devices especially useful as output ports for microprocessors and as backplane drivers, allowing ease of layout and greater board density.
FUNCTIONAL BLOCK DIAGRAMS 2529 cnv* 01-03
OEA OEB DA0 OB0 DA1 OB1 DA2 OB2 DA3 OB3 IDT54/74FCT240 OA0 DB0 OA1 DB1 OA2 DB2 OA3 DB3 DA0 OB0 DA1 OB1 DA2 OB2 DA3 OB3 IDT54/74FCT241/244 *OEB for 241, OEB for 244 OEA 241 Only OEB* OA0 DB0 OA1 DB1 OA2 DB2 OA3 DB3 D0 D1 D2 D3 D4 D5 D6 D7 IDT54/74FCT540/541 *Logic diagram shown for 'FCT540. 'FCT541 is the non-inverting option.
2606 dwg 01-03
OEA
OEB
O0* O1* O2* O3* O4* O5* O6* O7*
The IDT logo is a registered trademark of Integrated Device Technology, Inc. FAST is a trademark of National Semiconductor Co.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
(c)1992 Integrated Device Technology, Inc.
MAY 1992
DSC-4610/3
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1
IDT54/74FCT240/241/244/540/541/A/C FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN CONFIGURATIONS
IDT54/74FCT240
OB 0 OEA VCC
OEA DA0 OB0 DA1 OB1 DA2 OB2 DA3 OB3 GND
1 2 3 4 5 6 7 8 9 10
20 19 18 P20-1 D20-1 16 SO20-2 15 & E20-1 14 13 12 11 17
VCC OEB OA0 DB0 OA1 DB1 OA2 DB2 OA3 DB3
32 DA1 OB1 DA2 OB2 DA3 4 5 6 7 8
DA0
INDEX
1
20 19 18 17 16 15
OEB
2529 cnv* 04-09
OA0 DB0 OA1 DB1 OA2
L20-2
14 9 10 11 12 13
OB3 GND DB3 OA3 DB2
DIP/SOIC/CERPACK TOP VIEW
LCC TOP VIEW
IDT54/74FCT241/244
OB0
OEA DA0 OB0 DA1 OB1 DA2 OB2 DA3 OB3 GND 1 2 3 4 5 6 7 8 9 10 20 19 18 P20-1 D20-1 16 SO20-2 15 & 14 E20-1 13 12 11 17 VCC OEB* OA0 DB0 OA1 DB1 OA2 DB2 OA3 DB3 32 DA1 OB1 DA2 OB2 DA3 4 5 6 7 8 9 10 11 12 13 L20-2 1 20 19 18 17 16 15 14 OA0 DB0 OA1 DB1 OA2
GND DB3
OB3
DA0
INDEX
OA3
OEA VCC
DIP/SOIC/CERPACK TOP VIEW
*OEB for 241, OEB for 244
LCC TOP VIEW
IDT54/74FCT540/541
OEA VCC
1 OEA D0 D1 D2 D3 D4 D5 D6 D7 GND
D1
2 3 4 5 6 7 8 9 10 P20-1 D20-1 SO20-2 & E20-1
19 18 17 16 15 14 13 12 11
OEB O0* O1* O2* O3* O4* O5* O6* O7* D2 D3 D4 D5 D6 4 5 6 7 8
32
D0
1
20
VCC
20 19 18 17 16 15 14
OEB
INDEX
DB2
OEB*
O0* O1* O2* O3* O4*
L20-2
9 10 11 12 13
GND O7*
O6*
D7
DIP/SOIC/CERPACK TOP VIEW
*OX for 540, OX for 541
LCC TOP VIEW
O5*
2606 cnv* 04-09
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IDT54/74FCT240/241/244/540/541/A/C FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN DESCRIPTION
Pin Names
FUNCTION TABLE
OE OEA
L L H
2606 tbl 04
OEA, OEB
OEB (1) Dxx Oxx
NOTE: 1. OEB for 241 only.
Description 3-State Output Enable Inputs (Active LOW) 3-State Output Enable Input (Active HIGH) Inputs Outputs
Inputs(1) OE OEB(2) OEB L L H H H L
D L H X
240 H L Z
Outputs(1) 241 244 540 L H Z
L H
541
L
H Z
L Z
H Z
2606 tbl 05
NOTES: 1. H = High Voltage Level X = Don't Care L = Low Voltage Level Z = High Impedance 2. OEB for 241 only.
ABSOLUTE MAXIMUM RATINGS(1)
Symbol Rating VTERM(2) Terminal Voltage with Respect to GND VTERM(3) Terminal Voltage with Respect to GND TA Operating Temperature TBIAS Temperature Under Bias TSTG Storage Temperature PT Power Dissipation IOUT DC Output Current Commercial Military -0.5 to +7.0 -0.5 to +7.0 Unit V
CAPACITANCE (TA = +25C, f = 1.0MHz)
Symbol CIN COUT Parameter Input Capacitance Output Capacitance
(1)
Conditions VIN = 0V VOUT = 0V
Typ. 6 8
Max. 10 12
Unit pF pF
2606 tbl 02
-0.5 to VCC
-0.5 to VCC
V
0 to +70 -55 to +125 -55 to +125 0.5 120
-55 to +125 -65 to +135 -65 to +150 0.5 120
C C C
W mA
NOTE: 1. This parameter is measured at characterization but not tested.
NOTES: 2606 tbl 01 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. 2. Input and VCC terminals only. 3. Outputs and I/O terminals only.
7.8
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IDT54/74FCT240/241/244/540/541/A/C FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: VLC = 0.2V; VHC = VCC - 0.2V Commercial: TA = 0C to +70C, VCC = 5.0V 5%; Military: TA = -55C to +125C, VCC = 5.0V 10%
Symbol VIH VIL II H II L IOZH IOZL VIK IOS VOH Clamp Diode Voltage Short Circuit Current Output HIGH Voltage VCC = Min., IN = -18mA VCC = Max.(3) , VO = GND IOH = -300A IOH = -12mA MIL. IOH = -15mA COM'L. VOL Output LOW Voltage VCC = 3V, VIN = VLC or VHC, IOL = 300A VCC = Min. VIN = VIH or VIL IOL = 300A IOL = 48mA MIL. IOL = 64mA COM'L. VCC = 3V, VIN = VLC or VHC, IOH = -32A VCC = Min. VIN = VIH or VIL Parameter Input HIGH Level Input LOW Level Input HIGH Current Input LOW Current Off State (High Impedance) Output Current VCC = Max. Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max. VI = VCC VI = 2.7V VI = 0.5V VI = GND VO = VCC VO = 2.7V VO = 0.5V VO = GND Min. 2.0 -- -- -- -- -- -- -- -- -- -- -60 VHC VHC 2.4 2.4 -- -- -- -- Typ.(2) -- -- -- -- -- -- -- -- -- -- -0.7 -120 VCC VCC 4.3 4.3 GND GND 0.3 0.3 Max. -- 0.8 5 5(4) -5(4) -5 10 10(4) -10(4) -10 -1.2 -- -- -- -- -- VLC VLC(4) 0.55 0.55
2606 tbl 03
Unit V V
A
A
V mA V
V
NOTES: 1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 5.0V, +25C ambient and maximum loading. 3. Not more than one output should be shorted at one time. Duration of the short circuit test should not exceed one second. 4. This parameter is guaranteed but not tested.
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IDT54/74FCT240/241/244/540/541/A/C FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
VLC = 0.2V; VHC = VCC - 0.2V
Symbol ICC ICC ICCD Parameter Quiescent Power Supply Current Quiescent Power Supply Current TTL Inputs HIGH Dynamic Power Supply Current(4) Test Conditions(1) VCC = Max. VIN VHC; V IN VLC VCC = Max. VIN = 3.4V(3) VCC = Max. Outputs Open OEA = OEB = GND or OEA = GND, OEB = VCC One Input Toggling 50% Duty Cycle VCC = Max. Outputs Open fi = 10MHz 50% Duty Cycle OEA = OEB = GND or OEA = GND, OEB = VCC One Bit Toggling VCC = Max. Outputs Open fi = 5MHz 50% Duty Cycle OEA = OEB = GND or OEA = GND, OEB = VCC Eight Bits Toggling Min. -- -- VIN VHC VIN VLC -- Typ.(2) 0.2 0.5 0.15 Max. 1.5 2.0 0.25 Unit mA mA mA/ MHz
IC
Total Power Supply Current (6)
VIN VHC VIN VLC (FCT) VIN = 3.4V VIN = GND
--
1.7
4.0
mA
--
2.0
5.0
VIN VHC VIN VLC (FCT) VIN = 3.4V VIN = GND
--
3.2
6.5 (5)
--
5.2
14.5 (5)
NOTES: 1. For conditions shown as Max. or Min., 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 (fCP/2 + fiNi) ICC = Quiescent Current 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) fi = Input Frequency Ni = Number of Inputs at fi All currents are in milliamps and all frequencies are in megahertz.
2606 tbl 06
7.8
5
IDT54/74FCT240/241/244/540/541/A/C FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT240(1,2)
54/74FCT240 Com'l. Symbol Parameter Condition Mil. 54/74FCT240A Com'l. Mil. 54/74FCT240C Com'l. Mil.
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Unit
tPLH tPHL tPZH tPZL tPHZ tPLZ
Propagation Delay DN to ON Output Enable Time Output Disable Time
CL = 50pF RL = 500
1.5
8.0
1.5
9.0
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
1.5 10.0 1.5 9.5
1.5 10.5 1.5 10.0
2606 tbl 07
SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT241 AND FCT244(1,2)
SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT241 AND FCT244(1,2)
54/74FCT241/244 Com'l. Symbol Parameter Condition Mil. 54/74FCT241A/244A Com'l. Mil. 54/74FCT241C/244C Com'l. Mil. Unit
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.
tPLH tPHL tPZH tPZL tPHZ tPLZ
Propagation Delay DN to ON Output Enable Time Output Disable Time
CL = 50pF RL = 500
1.5 1.5 1.5
6.5 8.0 7.0
1.5 1.5 1.5
7.0 8.5 7.5
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
4.1 5.8 5.2
1.5 1.5 1.5
4.6 6.5 5.7
ns ns ns
2606 tbl 08
SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT540 AND FCT541(1,2)
54/74FCT540/541 Com'l. Symbol Parameter Condition Mil. 54/74FCT540A/541A Com'l. Mil. 54/74FCT540C/541C Com'l. Mil.
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Unit
tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ
Propagation Delay DN to ON IDT54/74FCT540 Propagation Delay DN to ON IDT54/74FCT541 Output Enable Time Output Disable Time
CL = 50pF RL = 500
1.5
8.5
1.5
9.5
1.5
4.8
1.5
5.1
1.5
4.3
1.5
4.7
ns
1.5
8.0
1.5
9.0
1.5
4.8
1.5
5.1
1.5
4.1
1.5
4.6
ns
1.5 10.0 1.5 9.5
1.5 10.5 1.5 10.0
1.5 1.5
6.2 5.6
1.5 1.5
6.5 5.9
1.5 1.5
5.8 5.2
1.5 1.5
6.5 5.7
ns ns
NOTES: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays.
2606 tbl 09
7.8
6
IDT54/74FCT240/241/244/540/541/A/C FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
TEST CIRCUITS AND WAVEFORMS TEST CIRCUITS FOR ALL OUTPUTS
VCC 500 VIN Pulse Generator RT D.U.T. 50pF CL 500 V OUT 7.0V
SWITCH POSITION
Test Open Drain Disable Low Enable Low All Other Tests Switch Closed Open
DEFINITIONS: 2606 tbl 10 CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
SET-UP, HOLD AND RELEASE TIMES
DATA INPUT t SU TIMING INPUT ASYNCHRONOUS CONTROL PRESET CLEAR ETC. SYNCHRONOUS CONTROL PRESET CLEAR CLOCK ENABLE ETC. t REM 3V 1.5V 0V 3V 1.5V 0V tH 3V 1.5V 0V 3V 1.5V 0V
PULSE WIDTH
LOW-HIGH-LOW PULSE tW HIGH-LOW-HIGH PULSE
1.5V
1.5V
t SU
tH
PROPAGATION DELAY
3V 1.5V tPLH OUTPUT t PLH OPPOSITE PHASE INPUT TRANSITION tPHL 3V 1.5V 0V t PHL 0V VOH 1.5V VOL
ENABLE AND DISABLE TIMES
ENABLE CONTROL INPUT t PZL OUTPUT NORMALLY SWITCH LOW CLOSED t PZH OUTPUT SWITCH NORMALLY OPEN HIGH 3.5V 1.5V 0.3V t PHZ 0.3V 1.5V 0V V OH 0V t PLZ DISABLE 3V 1.5V 0V 3.5V V OL
SAME PHASE INPUT TRANSITION
NOTES 2606 drw 10 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH. 2. Pulse Generator for All Pulses: Rate 1.0 MHz; ZO 50; tF 2.5ns; tR 2.5ns.
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IDT54/74FCT240/241/244/540/541/A/C FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
ORDERING INFORMATION
IDT XXXX XX FCT Temp. Range Device Type X Package X Process Blank B P D SO L E Commercial MIL-STD-883, Class B Plastic DIP CERDIP Small Outline IC Leadless Chip Carrier CERPACK
240 241 244 540 541 240A 241A 244A 540A 541A 240C 241C 244C 540C 541C 54 74
Inverting Octal Buffer/Line Driver Non-Inverting Octal Buffer/Line Driver Non-Inverting Octal Buffer/Line Driver Inverting Octal Buffer/Line Driver Non-Inverting Octal Buffer/Line Driver Fast Inverting Octal Buffer/Line Driver Fast Non-Inverting Octal Buffer/Line Driver Fast Non-Inverting Octal Buffer/Line Driver Fast Inverting Octal Buffer/Line Driver Fast Non-Inverting Octal Buffer/Line Driver Super Fast Inverting Octal Buffer/Line Driver Super Fast Non-Inverting Octal Buffer/Line Driver Super Fast Non-Inverting Octal Buffer/Line Driver Super Fast Inverting Octal Buffer/Line Driver Super Fast Non-Inverting Octal Buffer/Line Driver -55C to +125C 0C to +70C
2606 cnv* 15
7.8
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