FAST CMOS OCTAL IDTS4/74FCT245T/AT/CT/DT - 2245T/AT/CT IDT54/74FCT640T/AT/CT dt BIDIRECTIONAL IDT54/74FCT645T/ATICT/DT TRANSCEIVERS Integrated Device Technology, Inc. FEATURES: DESCRIPTION: Common features: Low input and output leakage <1HA (max.) - CMOS power levels True TTL input and output compatibility VOH = 3.3V (typ.) VOL = 0.3V (typ.) ~ Meets or exceeds JEDEC standard 18 specifications Product available in Radiation Tolerant and Radiation Enhanced versions - Military product compliant to MIL-STD-883, Class B and DESC listed (dual marked) Available in DIP, SOIC, SSOP, QSOP, CERPACK and LCC packages * Features for FCT245T/FCT640T/FCT645T: Std., A, C and D speed grades High drive outputs (-15mA IoH, 64mA IoL) Features for FCT2245T: Std. A and C speed grades Resistor outputs (-15mA lou, 12mA lot Com.) (-12MA IOH, 12mA IoL Mil.) Reduced system switching noise The IDT octal bidirectional transceivers are built using an advanced dual metal CMOS technology. The FCT245T/ FCT2245T, FCT640T and FCT645T are designed for asyn- chronous two-way communication between data buses. The transmit/receive (T/R) input determines the direction of data flow through the bidirectional transceiver. Transmit (active HIGH) enables data from A ports to B ports, and receive (active LOW) from B ports to A ports. The output enable (OE) input, when HIGH, disables both A and B ports by placing them in HIGH Z condition. The FCT245T/FCT2245T and FCT645T transceivers have non-inverting outputs. The FCT640T has inverting outputs. The FCT2245T has balanced drive outputs with current limiting resistors. This offers low ground bounce, minimal undershoot and controlled output fall times- reducing the need for external series terminating resistors. The FCT2xxxT parts are plug-in replacements for FCTxxxT parts. FUNCTIONAL BLOCK DIAGRAM TR Ao Ba Bs A6 Be B7 FCT2451/2245T, FCT645T are non-inverting options. FCT640T is the inverting options. 2539 dw O01 The IOT logo is a registered trademark of Integrated Device Technology, Inc. MILITARY AND COMMERCIAL TEMPERATURE RANGES 101996 Integrated Device Technology, Inc 6.9 PIN CONFIGURATIONS wad: oo Voc Ao CL] 2 191] OF AiO 3 P20-1 18[) Bo Ae Ot So002 we A3 (15 $020-7* 1 Be As 6 go20.g" 5D) Bs As (7 & 410 Bs As 18 E20-1 i3 [7 Bs A7 2 1217 Be GND [] 10 117] Bz DIP/SOIC/SSOP/QSOP/CERPACK 2539 drw 02 TOP VIEW FCT245T/2245T, FCT645T only. FCT2457T/2245T, FCT640T INDEX 2539 drw 03 tcc TOP VIEW JUNE 1996 2539/7 1{DTS4/74FCT245T/AT/CTIOT - 2245T/ATICT, IDT54/74FCTE40T/AT/CT, IDT54/74FCT645T/AT/CT/DT FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES PIN DESCRIPTION FUNCTION TABLE?) Pin Names Description OE Output Enable Input (Active LOW) TR Transmit/Receive Input Ao-A7 Side A Inputs or 3-State Outputs Bo-B7 Side B Inputs or 3-State Outputs 2530tb101 ~NOTES: 2539 tbl 02 1. 640 is inverting from input to output. 2. H=HIGH Voltage Level L = LOW Voltage Level X = Don't Care 1 ABSOLUTE MAXIMUM RATINGS CAPACITANCE (TA = +25C, F = 1.0MHZ) Symbol Rating _ Commercial Military _] Unit Symbol Parameter(?) Conditions | Typ. | Max. | Unit VTerm2)| Terminal Voltage | 0.5 to+7.0 | ~0.5to+7.0/ V CIN Input VIN =0V 6 10 | pF wn espect to Capacitance - Court | Output VouT = OV 8 12 | pF VTERM(3)| Terminal Voltage -0.5 to 0.5 to Vv Capacitance with Respect to Vec +0.5 Voc +0.5 _e GND . . NOTE: 2539 Ink 04 Ta Operating 010270 551021251 C 1. This parameter is measured at characterization but not tested. Temperature TBiAS Temperature -55 to +125 | -65to +135] C Under Bias TsTG Storage -55 to+125 | ~6510 +150] C Temperature PT Power Dissipation 0.5 0.5 WwW louT DC Output -60 to +120 | -60 to +120 | mA Current NOTES: 2539 Ink 03 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RAT- INGS may cause permanent damage to the device. Thisis 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 terminats only. 3. Outputs and I/O terminals only. 6.9 2IDTS4/74FCT245T/AT/CT/DT - 2245 T/ATI/CT, IDTS4/74FCTE40T/AT/CT, IDT54/74FCTE45ST/ATICTIDT MILITARY AND COMMERCIAL TEMPERATURE RANGES FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Uniess Otherwise Specified: Commercial: TA = 0C to +70C, Vcc = 5.0V + 5%; Military: TA = 55C to +125C, Voc = 5.0V + 10% Symbol Parameter Test Conditions() Min. | Typ.2)| Max. | Unit VIH Input HIGH Level Guaranteed Logic HIGH Level 2.0 _ _- Vv VIL Input LOW Levelt Guaranteed Logic LOW Level _ _ 0.8 v HH Input HIGH Current) Vcc = Max. Vis 2.7V - +1 pA Te Input LOW Current) Vi=0.5V _ +H loZH High Impedance Output Current Vec = Max. Vo=2.7V _ _- +1 pA loze (3-State Output pins) Vo = 0.5V _ +1 It input HIGH Current) Vcc = Max., Vi = Vcc (Max.) = _ +1 pA ViK Clamp Diode Vaitage Vec = Min., fin =-18mA _ 0.7 } -1.2 v VH Input Hysteresis - _ 200 _ mv lec Quiescent Power Supply Current | Vcc = Max., Vin = GND or Vcc _ 0.01 1 mA 2539 ink 05. OUTPUT DRIVE CHARACTERISTICS FOR FCT245T/640T/645T Symbol Parameter Test Conditions Min, | Typ{2)| Max. | Unit Vou Output HIGH Voltage Vcc = Min. 10H = 6mA MIL. 2.4 3.3 _ Vv VIN = VIH or VIL lOH = 8mA COM'L. lOH = 12mA MIL. 2.0 3.0 _ Vv loH = -15mA COM'L. VOL Output LOW Voltage Vcc = Min. lot = 48mA MIL. > 0.3 0.55 Vv VIN = Vin or VIL lo. = 64mA COM'L. los Short Circuit Current Vcc = Max., Vo = GND) -60 | -120 | ~225| mA 2539 Ink 06 OUTPUT DRIVE CHARACTERISTICS FOR FCT2245T Symbo! Parameter Test Conditions!) Min. | Typ.@) Max.| Unit JopL Output LOW Current Vcc = 5V, Vin= Vinor Vit, VouT= 1.5V) 16 48 - mA 1opH Output HIGH Current Vec = 5V, Vin = Vinior ViL, VouT= 1.5V&) -16 | -48 - mA VOH Output HIGH Voltage Vec = Min. loH = -12mA MIL. 2.4 3.3 _ Vv VIN = ViHor VIL IOH = 15mA COM. VoL Output LOW Voltage Vcc = Min. fo. = 12mA _ 0.3 0.50 Vv VIN = ViH or VIL NOTES: 2539 Ink 07 1, For conditions shown as Max. or Min., use appropriate value specified under Etectrical Characteristics for the applicable device type. 2. Typical values are at Voc = 5.0V, +25C ambient. 3. Not more than one output should be shorted at one time. Duration of the short circuit test should not exceed one second. 4. The test limit for this parameter is +5,A at Ta = -55C.IDTS4/74FCT245T/ATICT/OT - 2245T/ATICT, IDT54/74FCTE40T/AT/CT, IDTS4/74FCTB45T/AT/CTIDT MILITARY AND COMMERCIAL TEMPERATURE RANGES FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS POWER SUPPLY CHARACTERISTICS Symbol Parameter Test Conditions() Min. | Typ.) | Max. | Unit Alcc Quiescent Power Supply Current | Vcc = Max. _ 0.5 2.0 mA TTL Inputs HIGH Vin = 3.4V@) Iccp Dynamic Power Supply Vcc = Max. Vin = Vec | FCTxxxT | 0.15 | 0.25 | mA Current"4) Outputs Open Vin = GND MHz OE =T/R= GND FCT2xxT | | 0.06 | 0.12 One Input Toggling 50% Duty Cycle Ic Total Power Supply Current( Vcc = Max. VIN = Voc | FCTxxxT _ 1.5 3.5 mA Outputs Open ViN = GND| FCT2xxxT | 0.6 2.2 fi = 10MHz 50% Duty Cycle VIN=3.4 | FOTxxxT _ 1.8 45 OE = T/A = GND Vin = GND| FCT2xxxT 09 | 32 One Bit Toggling Voc = Max. Vin=Vec | FCTxxxT | | 3.0 | 6.01) Outputs Open VIN = GND} FCT20xT | 12 | 3.46 fi = 2.5MHz 50% Duty Cycle Vin=3.4 | FCTxxT | 5.0 | 14.08) OE = T/R= GND Vin = GND] FCT2xxxT |} 3.2 | 11.46) Eight Bits Toggling NOTES: 2539 th! 08 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). Ail 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 exampies of the Icc formula. These limits are guaranteed but not tested. 6. Ic = IQUIESCENT + lINPUTS + IOYNAMIC Ic = lee + Alcc DHNT + [ecb (fcpr2 + fiNi) Ice = Quiescent Current Alcc = Power Supply Current for a TTL High Input (Vin = 3.4V) DH = Duty Cycle for TTL Inputs High Nr = Number of TTL !nputs at 0H Iccb = Dynamic Current Caused by an Input Transition Pair (HLH or LHL) fop = 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. 6.9 4IDTS4/74FCT245T/AT/CTIDT - 2245T/ATICT, IDT54/74FCTE40T/ATICT, IDT54/74FCT645T/AT/CT/DT FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES SWITCHING CHARACTERISTICS OVER OPERATING RANGE FCT245T FCT245AT FCT2245T ECT2245AT Com't. Mil. Com't. Mil. Symbol Parameter Conditions _| Min.@ | Max. | Min. | Max. | Min.@)| Max. | Min.@ | Max. | Unit {PLH Propagation Delay CL = 50 pF 1.5 7.0 1.5 7.5 1.5 4.6 1.5 49 ns tPHL AtoB, BtoA Ri = 500Q tPZH Output Enable Time 1.5 9.5 1.5 10.0 1.5 6.2 1.5 6.5 | ns tez OE to AorB TPHZ Output Disable Time 1.5 75 1.5 10.0 1.5 5.0 1.5 6.0 ns tPLZ OE to AorB tPZH Output Enable Time 1.5 9.5 1.5 10.0 1.5 6.2 1.5 6.5 ns tPZL T/Rto A or BM) tPHZ Output Disable Time 1.5 7.5 1.5 10.0 1.5 5.0 1.5 6.0 | ns tpiz T/R to A or BO) 2534 tbl 09 FCT245CT Propagation Delay Ct = 50 pF . . . . : . ns Ri = 500Q Output Enable Time : . : . . . ns Output Disable Time . . . . . ns Output Enable Time . . . . : . ns BS) Output Disable Time . : . . . . ns T Be) 2534 tbl 10 SWITCHING CHARACTERISTICS OVER OPERATING RANGE FCT640T FCT640AT FCT640CT Com'l. Mil. Com'l. Mil. Com'l. Mil. Symbol Parameter Conditions |Min.| Max. |Min.)| Max. |Min.!| Max. |Min.@" Max. Min. Max. min. Max. | Unit tPLH | Propagation Delay CLr=50pF } 20] 7.0) 20]380715),50)15)]53)15] 44) 1.5] 47 | ns tpH. | AtoB, BtoA Ri = 500Q tpzH | Output Enable Time 2.0 |13.0] 20/160) 15]/62)/15]65])15]58]) 15 | 627] ns tpz._| OE to AorB tPHz | Output Disable Time 2.0}10.0] 20/120) 15/50/15] 60 ]15) 48] 1.5 | 52 | ns teiz_| OEtoAorB tPZH | Output Enable Time 2.0 |13.0} 20 |16.0] 1.5]62/)15]65)15)] 58] 1.5 | 62] ns tpz._| T/Rto Aor BO ; tPHz | Output Disable Time 20/100) 20/120] 15 ]50/)/15]/60] 15] 48] 1.5 | 52 |] ns te.z_| T/Rto Aor B) NOTES: 2534 tbl it 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. This parameter is guaranteed but not tested. 6.9 5IDT54/74FCT245T/ATICTIOT - 2245T/ATI/CT, IDT5S4/74FCTE40T/AT/CT, IOTS4/74FCTG45 T/A T/CT/DT FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES SWITCHING CHARACTERISTICS OVER OPERATING RANGE FCT645T FCT645AT Com't. Mil. Com'l. Mil. Symbol Parameter Conditions Min. | Max. | Min.@ | Max. | Min.) | Max. | Min.) | Max. Unit| {PLH Propagation Delay Ci = 50 pF 1.5 9.5 1.5 11.0 1.5 4.6 1.5 4.9 ns tPHi AtoB, BtoA Re = 500Q tPZH Output Enable Time 1.5 11.0 1.5 12.0 1.5 6.2 1.5 6.5 | ns tPZL OEtoAorB tPHZ Output Disable Time 1.5 12.0 1.5 13.0 1.5 5.0 1.5 6.0 ns IPLZ OE to AorB tPZH Output Enable Time 1.5 11.0 15 12.0 1.5 6.2 1.5 6.5 ns tPZL T/Rto A or BO) tPHZ Output Disable Time 1.5 12.0 1.5 13.0 1.5 5.0 1.5 6.0 ns tPLz T/Rto Aor B) 2534 tb! 12 FCT645CT FCT645DT tPLH Propagation Delay Ct = 50 pF RL = 500Q {PZH Output Enable Time tPHz Output Disable Time to tezH Output Enable Time (3) tPH2 Output Disable Time . - . . . . ns (3) NOTES: 2534 tbl 13 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. This parameter is guaranteed but not tested. 6.9 6IDT54/74FCT245T/AT/CTIDT - 2245T/AT/CT, IDT54/74FCTE640T/AT/CT, IDTS4/74FCT645T/AT/CT/DT FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS TEST CIRCUITS AND WAVEFORMS TEST CIRCUITS FOR ALL OUTPUTS Voc O-* 7.0V i 00Q VIN Pulse Generator D.U.T. 5002 2534 drw 04 SET-UP, HOLD AND RELEASE TIMES DATA 3V 1.5V INPUT is TIMING 3Vv INPUT 1.5V ASYNCHRONOUS CONTROL ov PRESET 3V CLEAR 1.5V ETC. OV SYNCHRONOUS CONTROL PRESET Ny CLEAR is CLOCK ENABLE ETC. 2534 drw 05 PROPAGATION DELAY 3V SAME PHASE 1.5V INPUT TRANSITION ov VOH OUTPUT 15V VoL 3Vv OPPOSITE PHASE sv INPUT TRANSITION ov 2534 drw 07 MILITARY AND COMMERCIAL TEMPERATURE RANGES SWITCH POSITION Test Switch Open Drain Disable Low Closed Enable Low All Other Tests Open DEFINITIONS: 2534 Ink 14 Ci= Load capacitance: includes jig and probe capacitance. RAt= Termination resistance: should be equal to Zout of the Pulse Generator. PULSE WIDTH LOW-HIGH-LOW PULSE 1.5 tw HIGH-LOW-HIGH 1.5V PULSE 2534 drw 06 ENABLE AND DISABLE TIMES ENABLE DISABLE = av CONTROL 1.5V INPUT ov {PLZ | OUTPUT 3.5V 3.5V NORMALLY 1.5V Va 1 Low 03V Vo. tPZH tPHZ a OUTPUT gwitcH j|shav vou NORMALLY 1.5V 4 HIGH _OPEN Ny A gy ov NOTES: 2534 drw 08 1. Diagram shown for input Control Enable-LOW and input Control Disable- HIGH 2. Pulse Generator for All Pulses: Rate < 1.0MHz; tr < 2.5ns; tR < 2.5ns 6.9IDTS4/74FCT245T/AT/CTIDT - 2245T/ATICT, IDTS4/74FCTE40T/ATICT, IDT54/74FCTE45T/AT/CT/DT FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES ORDERING INFORMATION IDT XX FCT xX x x x Temperature Family Device Package Process Range Type Blank Commercial B MIL-STD-883, Class B Pp Plastic DIP D CERDIP so Small Cutline IC L Leadiess Chip Carrier E CERPACK PY Shrink Small Outline Package Q Quarter-size Small Outline Package 245T Non-inverting Octal Bidirectional Transceiver 640T _Inverting Octal Bidirectional Transceiver 645T__Non-Inverting Octal Bidirectional Transceiver 245AT 245DT 645DT | Blank High Drive 12 Bajanced Drive | 54 -55C to +125C | 74 0C to +70C 2539 drw 09 6.9 8