FAST CMOS 20-BIT BUFFERS IDT54/74FCT16827AT/BT/CT/ET IDT54/74FCT162827AT/BT/CT/ET Integrated Device Technology, Inc. FEATURES: DESCRIPTION: • Common features: – 0.5 MICRON CMOS Technology – High-speed, low-power CMOS replacement for ABT functions – Typical tSK(o) (Output Skew) < 250ps – Low input and output leakage ≤1µA (max.) – ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) – Packages include 25 mil pitch SSOP, 19.6 mil pitch TSSOP, 15.7 mil pitch TVSOP and 25 mil pitch Cerpack – Extended commercial range of -40°C to +85°C – VCC = 5V ±10% • Features for FCT16827AT/BT/CT/ET: – High drive outputs (-32mA IOH, 64mA IOL) – Power off disable outputs permit “live insertion” – Typical VOLP (Output Ground Bounce) < 1.0V at VCC = 5V, TA = 25°C • Features for FCT162827AT/BT/CT/ET: – Balanced Output Drivers: ±24mA (commercial), ±16mA (military) – Reduced system switching noise – Typical VOLP (Output Ground Bounce) < 0.6V at VCC = 5V,TA = 25°C The FCT16827AT/BT/CT/ET and FCT162827AT/BT/CT/ ET 20-bit buffers are built using advanced dual metal CMOS technology. These 20-bit bus drivers provide high-performance bus interface buffering for wide data/address paths or busses carrying parity. Two pair of NAND-ed output enable controls offer maximum control flexibility and are organized to operate the device as two 10-bit buffers or one 20-bit buffer. Flow-through organization of signal pins simplifies layout. All inputs are designed with hysteresis for improved noise margin. The FCT16827AT/BT/CT/ET are ideally suited for driving high capacitance loads and low impedance backplanes. The output buffers are designed with power off disable capability to allow "live insertion" of boards when used as backplane drivers. The FCT162827AT/BT/CT/ET have balanced output drive 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 FCT162827AT/BT/CT/ET are plug-in replacements for the FCT16827AT/BT/CT/ET and ABT16827 for on-board interface applications. FUNCTIONAL BLOCK DIAGRAM 1OE1 2OE 1 1OE2 2OE2 1A1 1Y1 TO 9 OTHER CHANNELS 2A1 2Y1 TO 9 OTHER CHANNELS 2773 drw 01 2773 drw 02 The IDT logo is a registered trademark of Integrated Device Technology, Inc. MILITARY AND COMMERCIAL TEMPERATURE RANGES 1996 Integrated Device Technology, Inc. 5.17 AUGUST 1996 DSC-2773/7 1 IDT54/74FCT16827AT/BT/CT/ET, 162827AT/BT/CT/ET FAST CMOS 20-BIT BUFFERS MILITARY AND COMMERCIAL TEMPERATURE RANGES PIN CONFIGURATIONS 1OE1 1 56 1OE2 1A1 1Y1 2 55 1A1 54 1A2 1Y2 3 54 1A2 4 53 GND GND 4 53 GND 1Y3 5 52 1A3 1Y3 5 52 1A3 1Y4 6 51 1A4 1Y4 6 51 1A4 VCC 7 50 VCC VCC 7 50 VCC 1Y5 8 49 1A5 1Y5 8 49 1A5 1Y6 9 48 1A6 1Y6 9 48 1A6 1Y7 10 47 1A7 1Y7 10 47 1A7 GND 11 46 GND GND 11 46 GND 1Y8 12 45 1A8 1Y8 12 45 1A8 1Y9 13 44 1A9 1Y9 13 44 1A9 43 1A10 1OE1 1 56 1OE2 1Y1 2 55 1Y2 3 GND 1Y10 1A10 1Y10 14 2Y1 14 SO56-1 43 SO56-2 15 SO56-3 42 2A1 2Y1 15 42 2A1 2Y2 16 41 2A2 2Y2 16 41 2A2 2Y3 17 40 2A3 2Y3 17 40 2A3 GND 18 39 GND GND 18 39 GND 2Y4 19 38 2A4 2Y4 19 38 2A4 2Y5 20 37 2A5 2Y5 20 37 2A5 2Y6 21 36 2A6 2Y6 21 36 2A6 VCC 22 35 VCC VCC 22 35 VCC 2Y7 23 34 2A7 2Y7 23 34 2A7 2Y8 24 33 2A8 2Y8 24 33 2A8 GND 25 32 GND GND 25 32 GND 2Y9 26 31 2A9 2Y9 26 31 2A9 2Y10 27 30 2A10 2Y10 27 30 2A10 2OE1 28 29 2OE2 2OE1 28 29 2OE2 SSOP/ TSSOP/TVSOP TOP VIEW E56-1 CERPACK TOP VIEW 2773 drw 03 2773 drw 04 5.17 2 IDT54/74FCT16827AT/BT/CT/ET, 162827AT/BT/CT/ET FAST CMOS 20-BIT BUFFERS MILITARY AND COMMERCIAL TEMPERATURE RANGES FUNCTION TABLE(1) PIN DESCRIPTION Pin Names xOEx Description Output Enable Inputs (Active LOW) xOE1 Inputs xOE2 Outputs xYx xAx xAx Data Inputs L L L L xYx 3-State Outputs L L H H H X X Z X H X Z 2773 tbl 01 (1) NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don’t Care Z = High Impedance ABSOLUTE MAXIMUM RATINGS Symbol Description Max. VTERM(2) Terminal Voltage with Respect to –0.5 to +7.0 GND VTERM(3) Terminal Voltage with Respect to –0.5 to GND VCC +0.5 TSTG Storage Temperature –65 to +150 Unit V I OUT mA DC Output Current –60 to +120 2773 tbl 02 V °C CAPACITANCE (TA = +25°C, f = 1.0MHz) 2773 lnk 03 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. 2. All device terminals except FCT162XXXT Output and I/O terminals. 3. Output and I/O terminals for FCT162XXXT. Symbol Parameter(1) CIN Input Capacitance COUT Output Capacitance Conditions VIN = 0V Typ. 3.5 VOUT = 0V 3.5 Max. Unit 6.0 pF 8.0 NOTE: 1. This parameter is measured at characterization but not tested. 5.17 pF 2773 lnk 04 3 IDT54/74FCT16827AT/BT/CT/ET, 162827AT/BT/CT/ET FAST CMOS 20-BIT BUFFERS MILITARY AND COMMERCIAL TEMPERATURE RANGES DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Commercial: TA = –40°C to +85°C, VCC = 5.0V ± 10%; Military: TA = –55°C to +125°C, V CC = 5.0V ± 10% Parameter Input HIGH Level Test Conditions(1) Guaranteed Logic HIGH Level VIL Input LOW Level II H Input HIGH Current (Input pins)(5) Symbol VIH Min. 2.0 Typ.(2) — Max. Guaranteed Logic LOW Level — — 0.8 V VCC = Max. — — ±1 µA — — ±1 — — ±1 — — ±1 — — ±1 VI = VCC Input HIGH Current (I/O pins)(5) II L Input LOW Current (Input pins)(5) VI = GND Input LOW Current (I/O pins)(5) I OZH High Impedance Output Current VCC = Max. VO = 2.7V pins) (5) I OZL (3-State Output VIK Clamp Diode Voltage I OS Short Circuit Current VH Input Hysteresis I CCL I CCH I CCZ Quiescent Power Supply Current VO = 0.5V VCC = Min., IIN = –18mA VCC = Max., VO = GND (3) — VCC = Max., VIN = GND or VCC — Unit V µA — — ±1 — –0.7 –1.2 V –80 –140 –225 mA — 100 — mV — 5 500 µA 2773 lnk 05 OUTPUT DRIVE CHARACTERISTICS FOR FCT16827T Symbol IO Parameter Output Drive Current Test Conditions(1) VCC = Max., VO = 2.5V(3) Min. –50 Typ.(2) VOH Output HIGH Voltage VCC = Min. 2.5 I OH = –3mA VIN = VIH or V IL VOL Output LOW Voltage I OFF Input/Output Power Off Leakage(5) VCC = Min. VIN = VIH or V IL VCC = 0V, VIN or V O I OH = –12mA MIL. I OH = –15mA COM'L. I OH = –24mA MIL. I OH = –32mA COM'L.(4) I OL = 48mA MIL. I OL = 64mA COM'L. ≤ 4.5V — Max. –180 Unit mA 3.5 — V 2.4 3.5 — V 2.0 3.0 — V — 0.2 0.55 V — — ±1 µA 2773 lnk 06 OUTPUT DRIVE CHARACTERISTICS FOR FCT162827T Symbol I ODL Parameter Output LOW Current Test Conditions(1) VCC = 5V, VIN = VIH or VIL, VOUT = 1.5V (3) Min. 60 Typ.(2) 115 Max. 200 Unit mA I ODH Output HIGH Current VCC = 5V, VIN = VIH or VIL, VOUT = 1.5V(3) –60 –115 –200 mA VOH Output HIGH Voltage 2.4 3.3 — V VOL Output LOW Voltage VCC = Min. VIN = VIH or V IL VCC = Min. VIN = VIH or V IL — 0.3 0.55 V I OH = –16mA MIL. I OH = –24mA COM'L. I OL = 16mA MIL. I OL = 24mA COM'L. 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, +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. Duration of the condition can not exceed one second. 5. The test limit for this parameter is ± 5µA at TA = –55°C. 5.17 2773 lnk 07 4 IDT54/74FCT16827AT/BT/CT/ET, 162827AT/BT/CT/ET FAST CMOS 20-BIT BUFFERS MILITARY AND COMMERCIAL TEMPERATURE RANGES POWER SUPPLY CHARACTERISTICS Symbol ∆ICC ICCD Parameter Quiescent Power Supply Current TTL Inputs HIGH Dynamic Power Supply Current (4) IC Total Power Supply Current (6) Test Conditions(1) VCC = Max. VIN = 3.4V(3) VCC = Max. Outputs Open xOE1 = xOE2 = GND One Input Toggling 50% Duty Cycle VCC = Max. Outputs Open fi = 10MHz 50% Duty Cycle xOE1 = xOE2 = GND One Bit Toggling VCC = Max. Outputs Open fi = 2.5MHz 50% Duty Cycle xOE1 = xOE2 = GND Twenty Bits Toggling Min. — Typ.(2) 0.5 Max. 1.5 Unit mA VIN = VCC VIN = GND — 60 100 µA/ MHz VIN = VCC VIN = GND — 0.6 1.5 mA VIN = 3.4V VIN = GND — 0.9 2.3 VIN = VCC VIN = GND — 3.0 5.5 (5) VIN = 3.4V VIN = GND — 8.0 20.5 (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, +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 the ICC formula. These limits are guaranteed but not tested. 6. IC = IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC + ∆ICC DHNT + ICCD (fCPNCP/2 + fiNi) ICC = Quiescent Current (ICCL, ICCH and ICCZ) ∆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) NCP = Number of Clock Inputs at fCP fi = Input Frequency Ni = Number of Inputs at fi 5.17 2773 tbl 08 5 IDT54/74FCT16827AT/BT/CT/ET, 162827AT/BT/CT/ET FAST CMOS 20-BIT BUFFERS MILITARY AND COMMERCIAL TEMPERATURE RANGES SWITCHING CHARACTERISTICS OVER OPERATING RANGE FCT16827AT/162827AT Com'l. Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ Parameter Propagation Delay xAx to xYx Output Enable Time xOEx to xYx Output Disable Time xOEx to xYx FCT16827BT/162827BT Mil. Com'l. Mil. Condition(1) Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Unit CL = 50pF RL = 500Ω CL = 300pF(4) RL = 500Ω CL = 50pF RL = 500Ω CL = 300pF(4) RL = 500Ω CL = 5pF(4) RL = 500Ω CL = 50pF RL = 500Ω 1.5 8.0 1.5 9.0 1.5 5.0 1.5 6.5 ns 1.5 15.0 1.5 17.0 1.5 13.0 1.5 14.0 1.5 12.0 1.5 13.0 1.5 8.0 1.5 9.0 1.5 23.0 1.5 25.0 1.5 15.0 1.5 16.0 1.5 9.0 1.5 9.0 1.5 6.0 1.5 7.0 1.5 10.0 1.5 10.0 1.5 7.0 1.5 8.0 — 0.5 — 0.5 — 0.5 — 0.5 tSK(o) Output Skew (3) ns ns ns 2773 tbl 09 FCT16827CT/162827CT Com'l. Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ Parameter Propagation Delay xAx to xYx Output Enable Time xOEx to xYx Output Disable Time xOEx to xYx tSK(o) Output Skew (3) Condition(1) Min.(2) CL = 50pF RL = 500Ω CL = 300pF(4) RL = 500Ω CL = 50pF RL = 500Ω CL = 300pF(4) RL = 500Ω CL = 5pF(4) RL = 500Ω CL = 50pF RL = 500Ω 1.5 FCT16827ET/162827ET Mil. Max. Min.(2) 4.4 1.5 1.5 10.0 1.5 Com'l. Max. Min.(2) 5.0 1.5 1.5 11.0 7.0 1.5 1.5 14.0 1.5 Mil. Max. Min.(2) Max. Unit 3.2 — — ns 1.5 7.0 — — 8.0 1.5 4.8 — — 1.5 15.0 1.5 9.0 — — 5.7 1.5 6.7 1.5 4.0 — — 1.5 6.0 1.5 7.0 1.5 4.0 — — — 0.5 — 0.5 — 0.5 — — NOTES: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design. 4. This condition is guaranteed but not tested. 5.17 ns ns ns 2773 tbl 10 6 IDT54/74FCT16827AT/BT/CT/ET, 162827AT/BT/CT/ET FAST CMOS 20-BIT BUFFERS MILITARY AND COMMERCIAL TEMPERATURE RANGES TEST CIRCUITS AND WAVEFORMS SWITCH POSITION TEST CIRCUITS FOR ALL OUTPUTS V CC 7.0V 500Ω VIN Open Drain Disable Low Closed Open All Other Tests D.U.T. 50pF RT Switch Enable Low V OUT Pulse Generator Test 2773 lnk 11 DEFINITIONS: CL= Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. 500Ω CL 2773 drw 05 SET-UP, HOLD AND RELEASE TIMES DATA INPUT TIMING INPUT ASYNCHRONOUS CONTROL PRESET CLEAR ETC. SYNCHRONOUS CONTROL PRESET CLEAR CLOCK ENABLE ETC. tH tSU tREM tSU PULSE WIDTH 3V 1.5V 0V 3V 1.5V 0V LOW-HIGH-LOW PULSE 1.5V tW 3V 1.5V 0V HIGH-LOW-HIGH PULSE 1.5V 2773 drw 07 3V 1.5V 0V tH 2773 drw 06 PROPAGATION DELAY ENABLE AND DISABLE TIMES ENABLE SAME PHASE INPUT TRANSITION tPLH tPHL OUTPUT tPLH OPPOSITE PHASE INPUT TRANSITION tPHL 3V 1.5V 0V DISABLE 3V 1.5V CONTROL INPUT tPZL VOH 1.5V VOL OUTPUT NORMALLY LOW 3V 1.5V 0V SWITCH CLOSED 3.5V 1.5V tPZH OUTPUT NORMALLY HIGH 2773 drw 08 SWITCH OPEN 0V tPLZ 3.5V 0.3V VOL tPHZ 0.3V 1.5V 0V VOH 0V 2773 drw 09 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 5.17 7 IDT54/74FCT16827AT/BT/CT/ET, 162827AT/BT/CT/ET FAST CMOS 20-BIT BUFFERS MILITARY AND COMMERCIAL TEMPERATURE RANGES ORDERING INFORMATION IDT XX XXXX FCT Temp. Range Device Type X Package X Process Blank B Commercial MIL-STD-883, Class B PV PA PF E Shrink Small Outline Package (SO56-1) Thin Shrink Small Outline Package (SO56-2) Thin Very Small Outline Package (SO56-3) CERPACK (E56-1) 16827AT Non-Inverting 20-Bit Buffers 16827BT 16827CT 16827ET 162827AT 162827BT 162827CT 162827ET 54 74 –55°C to +125°C –40°C to +85°C 2773 drw 10 5.17 8