FAST CMOS 16-BIT BUFFER/LINE DRIVER Integrated Device Technology, Inc. IDT54/74FCT16244T/AT/CT/ET IDT54/74FCT162244T/AT/CT/ET IDT54/74FCT166244T/AT/CT IDT54/74FCT162H244T/AT/CT/ET 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 • Features for FCT16244T/AT/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 FCT162244T/AT/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 • Features for FCT166244T/AT/CT: – Light Drive Balanced Output: ±8mA (commercial), ±6mA (military) – Minimal system switching noise – Typical VOLP (Output Ground Bounce) < 0.25V at VCC = 5V,TA = 25°C • Features for FCT162H244T/AT/CT/ET: – Bus-Hold retains last active bus state during 3-state – Eliminates the need for external pull up resistors The 16-Bit Buffer/Line Driver is for bus interface or signal buffering applications requiring high speed and low power dissipation. These devices have a flow through pin organization, and shrink packaging to simplify board layout. All inputs are designed with hysteresis for improved noise margin. The three-state controls allow independent 4-bit, 8-bit or combined 16-bit operation. These parts are plug in replacements for 54/74ABT16244 where higher speed, lower noise or lower power dissipation levels are desired. The FCT16244T/AT/CT/ET are ideally suited for driving high capacitance loads (>200pF) and low impedance backplanes. These "high drive" buffers are designed with power off disable capability to allow "live insertion" of boards when used in a backplane interface. The FCT162244T/AT/CT/ET have balanced output current levels and current limiting resistors. These offer low ground bounce, minimal undershoot, and controlled output fall times, reducing the need for external series terminating resistors while still providing very high speed operation for loads of less than 200pF. The FCT166244T/AT/CT are suited for very low noise, point-to-point driving where there is a single receiver, or a very light lumped load (<100pF). The buffers are designed to limit the output current to levels which will avoid noise and ringing on the signal lines without using external series terminating resistors. The FCT162H244T/AT/CT/ET have "Bus-Hold" which retains the input's last state whenever the input goes to high impedance. This prevents "floating" inputs and eliminates the need for pull-up/down resistors. FUNCTIONAL BLOCK DIAGRAM 3OE 1OE 1A1 1Y1 1A2 1Y2 1A3 1A4 3 A1 3Y1 3 A2 3Y2 1Y3 3 A3 3Y3 1Y4 3 A4 3Y4 4OE 2OE 2A1 2Y1 2A2 2Y2 2A3 2Y3 2A4 2Y4 The IDT logo is a registered trademark of Integrated Device Technology, Inc. 4Y1 4 A2 4Y2 4 A3 4Y3 4 A4 4Y4 2544 drw 02 2544 drw 01 MILITARY AND COMMERCIAL TEMPERATURE RANGES 1996 Integrated Device Technology, Inc. 4 A1 5.2 OCTOBER 1996 DSC-2544/9 15 IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES PIN CONFIGURATIONS 1OE 1 48 2OE 1OE 1 48 2OE 1Y1 2 47 1A1 1Y1 2 47 1A1 1Y2 3 46 1A2 1Y2 3 46 1A2 GND 4 45 GND GND 4 45 GND 1Y3 5 44 1A3 1Y3 5 44 1A3 1Y4 6 43 1A4 1Y4 6 43 1A4 VCC 7 42 VCC VCC 7 42 VCC 2Y1 8 41 2A1 2Y1 8 41 2A1 2Y2 9 40 2A2 2Y2 9 40 2A2 GND 10 39 GND GND 10 39 GND 2Y3 11 38 2A3 2Y3 11 38 2A3 2Y4 12 2A4 2Y4 12 37 2A4 3Y1 13 SO48-1 37 SO48-2 SO48-3 36 3A1 3Y1 13 36 3A1 3Y2 14 35 3A2 3Y2 14 35 3A2 GND 15 34 GND GND 15 34 GND 3Y3 16 33 3A3 3Y3 16 33 3A3 3Y4 17 32 3A4 3Y4 17 32 3A4 VCC 18 31 VCC VCC 18 31 VCC 4Y1 19 30 4A1 4Y1 19 30 4A1 4Y2 20 29 4A2 4Y2 20 29 4A2 GND 21 28 GND GND 21 28 GND 4Y3 22 27 4A3 4Y3 22 27 4A3 4Y4 23 26 4A4 4Y4 23 26 4A4 4OE 24 25 3OE 4OE 24 25 3OE SSOP/ TSSOP/TVSOP TOP VIEW E48-1 2544 drw 03 2544 drw 04 CERPACK TOP VIEW PIN DESCRIPTION Pin Names xOE Description 3–State Output Enable Inputs (Active LOW) xAx Data Inputs(1) xYx 3-State Outputs 2544 tbl 01 NOTE: 1. On FCT16xH these pins have “Bus-hold”. All other pins are standard inputs, outputs or I/Os. 5.2 2 IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER ABSOLUTE MAXIMUM RATINGS(1) FUNCTION TABLE(1) Symbol Description Max. VTERM(2) Terminal Voltage with Respect to –0.5 to +7.0 GND (3) Terminal Voltage with Respect to VTERM –0.5 to GND VCC +0.5 TSTG Storage Temperature –65 to +150 Unit V I OUT mA DC Output Current MILITARY AND COMMERCIAL TEMPERATURE RANGES –60 to +120 xOE Inputs xAx Outputs xYx L L L L H H H X Z V °C 2544 tbl 02 NOTE: 1. H = HIGH Voltage Level X = Don’t Care L = LOW Voltage Level Z = High Impedance 2544 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 and FCT166XXXT output and I/O terminals. 3. Output and I/O terminals for FCT162XXXT and FCT166XXXT. CAPACITANCE (TA = +25°C, f = 1.0MHz) 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. pF 2544 lnk 04 DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE (STANDARD PARTS) Following Conditions Apply Unless Otherwise Specified: Commercial: TA = –40°C to +85°C, VCC = 5.0V ± 10%; Military: TA = –55°C to +125°C, VCC = 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 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. 5.2 — 2544 lnk 05 3 IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE (BUS-HOLD) Following Conditions Apply Unless Otherwise Specified: Commercial: TA = –40°C to +85°C, VCC = 5.0V ± 10%; Military: TA = –55°C to +125°C, VCC = 5.0V ± 10% Symbol VIH Test Conditions(1) Guaranteed Logic HIGH Level Parameter Input HIGH Level VIL Input LOW Level II H Input Standard Input(5) HIGH Current(4) II L Input Typ.(2) — Max. — Unit V Guaranteed Logic LOW Level — — 0.8 V VCC = Max. — — ±1 µA Standard I/O(5) — — ±1 Bus-hold Input — — ±100 Bus-hold I/O — — ±100 ±1 VI = VCC Standard Input(5) — — LOW Standard I/O(5) — — ±1 Current(4) Bus-hold Input — — ±100 Bus-hold I/O — — ±100 VI = 2.0V –50 — — VI = 0.8V +50 — — VO = 2.7V — — ±1 VO = 0.5V — — ±1 — –0.7 –1.2 V –80 –140 –225 mA — 100 — mV — 5 500 µA I BHH Bus Hold I BHL Sustain Current(4) High Impedance Output Current I OZH Min. 2.0 Bus-hold Input VI = GND VCC = Min. VCC = Max. pins) (5,6) 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 VCC = Min., IIN = –18mA VCC = Max., VO = GND (3) — VCC = Max., VIN = GND or VCC 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. Pins with Bus-hold are identified in the pin description. 5. The test limit for this parameter is ± 5µA at TA = –55°C. 6. Does not include Bus-hold I/O pins. 5.2 µA µA 2544 lnk 06 4 IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES OUTPUT DRIVE CHARACTERISTICS FOR FCT16244T Symbol IO Parameter Output Drive Current Test Conditions(1) VCC = Max., VO = 2.5V(3) Min. –50 Typ.(2) — Max. –180 Unit mA VOH Output HIGH Voltage VCC = Min. 2.5 3.5 — V 2.4 3.5 — V 2.0 3.0 — V — 0.2 0.55 V — — ±1 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 µA 2544 lnk 07 OUTPUT DRIVE CHARACTERISTICS FOR FCT162244T 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. 2544 lnk 08 OUPUT DRIVE CHARACTERISTICS FOR FCT166244T Symbol I ODL Parameter Output LOW Current Test Conditions(1) VCC = 5V, VIN = VIH or VIL, VOUT = 1.5V (3) Min. 16 Typ.(2) 48 Max. 96 Unit mA I ODH Output HIGH Current VCC = 5V, VIN = VIH or V IL, VOUT = 1.5V (3) –16 –48 –96 mA VOH Output HIGH Voltage 2.4 3.3 — V VOL Output LOW Voltage VCC = Min. VIN = VIH or VIL VCC = Min. VIN = VIH or V IL — 0.3 0.55 V I OH = –6mA MIL. I OH = –8mA COM'L. I OL = 6mA MIL. I OL = 8mA 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. 5.2 2544 lnk 09 5 IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES POWER SUPPLY CHARACTERISTICS Test Conditions(1) Min. Typ.(2) Max. Unit — 0.5 1.5 mA VIN = VCC VIN = GND — 60 100 µA/ MHz VCC = Max. Outputs Open fi = 10MHz 50% Duty Cycle xOE = GND One Bit Toggling VIN = VCC VIN = GND — 0.6 1.5 mA VIN = 3.4V VIN = GND — 0.9 2.3 VCC = Max. Outputs Open fi = 2.5MHz 50% Duty Cycle xOE = GND Sixteen Bits Toggling VIN = VCC VIN = GND — 2.4 4.5 (5) VIN = 3.4V VIN = GND — 6.4 16.5 (5) Symbol Parameter ∆ICC Quiescent Power Supply Current TTL Inputs HIGH VCC = Max. VIN = 3.4V(3) ICCD Dynamic Power Supply Current(4) VCC = Max. Outputs Open xOE = GND One Input Toggling 50% Duty Cycle IC Total Power Supply Current (6) 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 5.2 2544 tbl 10 6 IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT16244T/FCT162244T FCT16244T/162244T/166244T Com'l. FCT16244AT/162244AT/166244AT Mil. Com'l. Mil. Symbol Parameter Condition(1) Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Unit tPLH tPHL tPZH tPZL tPHZ tPLZ tSK(o) Propagation Delay xAx to xYx Output Enable Time CL = 50pF RL = 500Ω 1.5 6.5 1.5 7.0 1.5 4.8 1.5 5.1 ns 1.5 8.0 1.5 8.5 1.5 6.2 1.5 6.5 ns Output Disable Time 1.5 7.0 1.5 7.5 1.5 5.6 1.5 5.9 ns Output Skew (3) — 0.5 — 0.5 — 0.5 — 0.5 ns 2544 tbl 11 FCT16244CT/162244CT/166244CT Com'l. Symbol Parameter Condition(1) tPLH tPHL tPZH tPZL tPHZ tPLZ tSK(o) Propagation Delay xAx to xYx Output Enable Time CL = 50pF RL = 500Ω Min.(2) 1.5 FCT16244ET/162244ET Mil. Max. Min.(2) 4.1 1.5 1.5 5.8 Output Disable Time 1.5 Output Skew (3) — Com'l. Max. Min.(2) 4.6 1.5 1.5 6.5 5.2 1.5 0.5 — Mil. Max. Min.(2) Max. Unit 3.2 — — ns 1.5 4.4 — — ns 5.7 1.5 3.6 — — ns 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. 5.2 ns 2544 tbl 12 7 IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES TEST CIRCUITS AND WAVEFORMS SWITCH POSITION TEST CIRCUITS FOR ALL OUTPUTS V CC 500Ω V OUT VIN Pulse Generator Test Switch Open Drain Disable Low Closed 7.0V Enable Low D.U.T. Open All Other Tests 50pF RT 2544 lnk 13 DEFINITIONS: CL= Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. 500Ω CL 2544 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 3V 1.5V 0V LOW-HIGH-LOW PULSE 1.5V tW HIGH-LOW-HIGH PULSE 1.5V 3V 1.5V 0V tH 2544 drw 07 2544 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 VOH 1.5V VOL DISABLE 3V 1.5V 0V CONTROL INPUT tPLZ tPZL OUTPUT NORMALLY LOW 3V 1.5V 0V SWITCH CLOSED tPZH OUTPUT NORMALLY HIGH 2544 drw 08 SWITCH OPEN 3.5V 3.5V 1.5V 0.3V VOL tPHZ 0.3V 1.5V 0V VOH 0V 2544 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 5.2 8 IDT54/74FCT16244T/AT/CT/ET, 162244T/AT/CT/ET, 166244T/AT/CT, 162H244T/AT/CT/ET FAST CMOS 16-BIT BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES ORDERING INFORMATION IDT XX FCT Temp. Range X Drive XXXX X Bus Hold Device Type X Package X Process Blank B Commercial MIL-STD-883, Class B PV PA PF E Shrink Small Outline Package (SO48-1) Thin Shrink Small Outline Package (SO48-2) Thin Very Small Outline Package (SO48-3) CERPACK (E48-1) 244T 244AT 244CT 244ET Non-Inverting 16-Bit Buffer/Line Driver Blank H Standard Bus-hold 16 162 166 16-Bit High Drive 16-Bit Balanced Drive 16-Bit Light Drive 54 74 –55°C to +125°C –40°C to +85°C 2544 drw 10 5.2 9