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IDT54/74FCT244/A/C FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
FAST CMOS OCTAL BUFFER/LINE DRIVER
IDT54/74FCT244/A/C
FEATURES:
- - - - - - - - IDT54/74FCT244A equivalent to FASTTM speed and drive IDT54/74FCT244A 25% faster than FAST IDT54/74FCT244C up to 55% faster than FAST IOL = 64mA (commercial) and 48mA (military) CMOS power levels (1mW typ. static) Military product compliant to MIL-STD-883, Class B Meets or exceeds JEDEC Standard 18 specifications Available in the following packages: * Commercial: SOIC * Military: CERDIP, LCC, CERPACK
DESCRIPTION:
The IDT octal buffer/line drivers are built using an advanced dual metal CMOS technology. The FCT244 is designed to be employed as a memory and address driver, clock driver, and bus-oriented transmitter/receiver which provides improved board density.
FUNCTIONAL BLOCK DIAGRAM
OEA
1
19
OEB DA0
2 18
OA0
OB0 DA1
3
17
DB0
4
16
OA1 DB1
OB1 DA2
5
15
6
14
OA2
OB2
7
13
DB2
DA3
8
12
OA3
11
OB3
9
DB3
MILITARY AND COMMERCIAL TEMPERATURE RANGES
1
c 1999 Integrated Device Technology, Inc.
JUNE 2000
DSC-5420/-
IDT54/74FCT244/A/C FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN CONFIGURATION
OEA DA0 OB0 DA1 OB1 DA2 OB2 DA3 OB3 GND INDEX 2 3 4 5 6 7 8 9 10
D20-1 SO20-2 E20-1
19 18 17 16 15 14 13 12 11
OEB OA0 DB0 OA1 DB1 OA2 DB2 OA3 DA1 OB1 DA2 OB2 DA3
4 5 6 7 8 9 10 11 12 13 L20-2 3 2 1 20 19 18 17 16 15 14
VCC
1
DA 0
20
OB 0
VCC
OE A
OE B
OA0 DB0 OA1 DB1 OA2
OB 3
OA 3
DB 3
DB3
DIP/ SOIC/ CERPACK TOP VIEW
LCC TOP VIEW
ABSOLUTE MAXIMUM RATINGS(1)
Symbol VTERM(2) VTERM(3) TA TBIAS TSTG PT IOUT Rating Terminal Voltage with Respect to GND Terminal Voltage with Respect to GND Operating Temperature Temperature Under Bias Storage Temperature Power Dissipation DC Output Current Commercial -0.5 to +7 -0.5 to VCC 0 to +70 -55 to +125 -55 to +125 0.5 120 Military -0.5 to +7 -0.5 to VCC -55 to +125 -65 to +135 -65 to +150 0.5 120 Unit V V C C C W mA
8-link
FUNCTION TABLE (1)
OEA L L H Inputs OEB L L H D L H X Outputs
L
GND
DB 2
H Z
NOTE: 1. H = High Voltage Level X = Don't Care L = Low Voltage Level Z = HIGH Impedance
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 +.5V unless otherwise noted. 2. Input and VCC terminals only. 3. Outputs and I/O terminals only.
PIN DESCRIPTION
Pin Names OEA, OEB Dxx Oxx Description 3-State Output Enable Inputs (Active LOW) Inputs Outputs
CAPACITANCE (TA = +25OC, f = 1.0MHz)
Symbol CIN COUT Parameter(1) Input Capacitance Output Capacitance Conditions VIN = 0V VOUT = 0V Typ. 6 8 Max. 10 12 Unit pF pF
8-link
NOTE: 1. This parameter is measured at characterization but not tested.
c
1998 Integrated Device Technology, Inc.
2
DSC-123456
IDT54/74FCT244/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 VCC = 3V, VIN = VLC or VHC, IOH = -32 A VCC = Min. VIN = VIH or VIL VOL Output LOW Voltage IOH = -300 A IOH = -12mA MIL. IOH = -15mA COM'L. VCC = 3V, VIN = VLC or VHC, IOL = 300 A VCC = Min. VIN = VIH or VIL IOL = 300 A IOL = 48mA MIL. IOL = 64mA COM'L. 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 -- -- -- -- -- -- -- -- -- -- -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
8-link
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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IDT54/74FCT244/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; VIN VLC VCC = Max. VIN = 3.4V(3) VIN VHC VCC = Max. VIN VLC Outputs Open OEA = OEB = GND One Input Toggling 50% Duty Cycle VIN VHC VCC = Max. VIN VLC Outputs Open (FCT) fi = 10MHz 50% Duty Cycle VIN = 3.4V OEA = OEB = GND One Bit Toggling VIN = GND VIN VHC VCC = Max. VIN VLC Outputs Open (FCT) fi = 2.5MHz 50% Duty Cycle VIN = 3.4V OEA = OEB = GND Eight Bits Toggling VIN = GND Min. -- -- -- Typ.(2) 0.2 0.5 0.15 Max. 1.5 2 0.25 Unit mA mA mA/ MHz
IC
Total Power Supply Current (6)
--
1.7
4
mA
-- --
2 3.2
5 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.
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
54/74FCT244 Com'l. Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ Parameter Propagation Delay DN to ON Output Enable Time Output Disable Time Condition CL = 50pF RL = 500 Mil. 54/74FCT244A Com'l. Mil.
(1,2)
54/74FCT244C Com'l. Mil.
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Unit 1.5 1.5 1.5 6.5 8 7 1.5 1.5 1.5 7 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
NOTES: 1. See test circuit and wave forms. 2. Minimum limits are guaranteed but not tested on Propagation Delays.
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IDT54/74FCT244/A/C FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
TEST CIRCUITS AND WAVEFORMS TEST CIRCUITS FOR ALL OUTPUTS
V CC 7.0V 500 V IN Pulse Generator D.U.T. 50pF R
T
SWITCH POSITION
Test Open Drain Disable Low Enable Low All Other Tests Open
8-link
Switch Closed
V OUT
500 C
L
DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
O ctal lin k
SET-UP, HOLD, AND RELEASE TIMES
DATA INPUT tSU TIM ING INPUT ASYNCHRONOUS C ONTROL PRES ET CLEAR ETC. SYNCHRO NOUS CONTRO L PRES ET CLEAR CLOCK ENABLE ETC. tREM tH 3V 1.5V 0V 3V 1.5V 0V 3V 1.5V 0V 3V 1.5V 0V
O ctal lin k
PULSE WIDTH
LO W -HIGH-LOW PULSE tW HIGH-LOW -HIGH PULSE
O ctal lin k
1.5V
1.5V
tSU
tH
PROPAGATION DELAY
SAM E PHASE INPUT TRANSITION tPLH OUTPUT tPLH OPPOSITE P HASE INPUT TRANSITION tPHL tPHL 3V 1.5V 0V VOH 1.5V VOL 3V 1.5V 0V
O ctal lin k
ENABLE AND DISABLE TIMES
ENAB LE DISA BLE 3V CO NTROL INPUT tPZL OUTPUT NO RM A LLY LO W SW ITCH CLOSE D tPZH OUTPUT NO RM A LLY HIGH SW ITCH OPEN 3.5V 1.5V 0.3V tPHZ 0.3V 1.5V 0V 0V
O ctal lin k
1.5V tPLZ 0V 3.5V VOL VOH
NOTES: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH. 2. Pulse Generator for All Pulses: Rate 1.0MHz; Zo 50; tF 2.5ns; tR 2.5ns.
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IDT54/74FCT244/A/C FAST CMOS OCTAL BUFFER/LINE DRIVER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
ORDERING INFORMATION
IDT XX Temp. Range FCT XXXX Device Type XX Package X Process Blank B Commercial MIL-STD-883, Class B Commercial Options Small Outline IC (SO20-2) Military Options CERDIP (D20-1) CERPACK (E20-1) Leadless Chip Carrier (L20-2)
SO
D E L
244 244A 244C
Octal Buffer/Line Driver
54 74
- 55C to +125C 0C to +70C
CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054
for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com*
*To search for sales office near you, please click the sales button found on our home page or dial the 800# above and press 2. The IDT logo is a registered trademark of Integrated Device Technology, Inc.
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