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| 74VCX162601 Low Voltage 18-Bit Universal Bus Transceivers with 3.6V Tolerant Inputs and Outputs and 26 Series Resistors in the B-Port Outputs April 1998 Revised April 1999 74VCX162601 Low Voltage 18-Bit Universal Bus Transceivers with 3.6V Tolerant Inputs and Outputs and 26 Series Resistors in the B-Port Outputs General Description The VCX162601, 18-bit universal bus transceiver, combines D-type latches and D-type flip-flops to allow data flow in transparent, latched, and clocked modes. Data flow in each direction is controlled by output-enable (OEAB and OEBA), latch-enable (LEAB and LEBA), and clock (CLKAB and CLKBA) inputs. The clock can be controlled by the clock-enable (CLKENAB and CLKENBA) inputs. For A-to-B data flow, the device operates in the transparent mode when LEAB is HIGH. When LEAB is LOW, the A data is latched if CLKAB is held at a HIGH-toLOW logic level. If LEAB is LOW, the A bus data is stored in the latch/flip-flop on the LOW-to-HIGH transition of CLKAB. Output-enable OEAB is active-LOW. When OEAB is HIGH, the outputs are in the HIGH-impedance state. Data flow for B to A is similar to that of A to B but uses OEBA, LEBA, CLKBA and CLKENBA. The 74VCX162601 is designed for low voltage (1.65V to 3.6V) VCC applications with I/O compatibility up to 3.6V. The VCX162601 is also designed with 26 series resistors in the B-Port outputs. This design reduces line noise in applications such as memory address drivers, clock drivers, and bus transceivers/transmitters. Features s 1.65V-3.6V VCC supply operation s 3.6V tolerant inputs and outputs s 26 series resistors in B-Port outputs s tPD (A to B) 3.8 ns max for 3.0V to 3.6V VCC 4.6 ns max for 2.3V to 2.7V VCC 9.2 ns max for 1.65V to 1.95V VCC s Power-down high impedance inputs and outputs s Supports live insertion/withdrawal (Note 1) s Static Drive (IOH/IOL B outputs) 12 mA @ 3.0V VCC 8 mA @ 2.3V VCC 3 mA @ 1.65V VCC s Uses patented noise/EMI reduction circuitry s Latchup performance exceeds 300 mA s ESD performance: Human body model > 2000V Machine model >200V Note 1: To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pull-up resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver. Ordering Code: Order Number 74VCX162601MTD Package Number MTD56 Package Description 56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide Devices also available in Tape and Reel. Specify by appending the suffix letter "X" to the ordering code. Pin Descriptions Pin Names OEAB, OEBA LEAB, LEBA CLKAB, CLKBA CLKENAB, CLKENBA A1-A18 B1-B18 Description Output Enable Inputs (Active LOW) Latch Enable Inputs Clock Inputs Clock Enable Inputs Side A Inputs or 3-STATE Outputs Side B Inputs or 3-STATE Outputs (c) 1999 Fairchild Semiconductor Corporation DS500150.prf www.fairchildsemi.com 74VCX162601 Connection Diagram Function Table Inputs (Note 2) Outputs An X L H X X L H X X Bn Z L H B0 (Note 3) B0 (Note 3) L H B0 (Note 3) B0 (Note 4) CLKENAB OEAB LEAB CLKAB X X X H H L L L L H L L L L L L L L X H H L L L L L L X X X X X L H H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial (HIGH or LOW, inputs may not float) Z = High Impedance Note 2: A-to-B data flow is shown; B-to-A flow is similar but uses OEBA, LEBA, CLKBA, and CLKENBA. Note 3: Output level before the indicated steady-state input conditions were established. Note 4: Output level before the indicated steady-state input conditions were established, provided that CLKAB was HIGH before LEAB went LOW. Logic Diagram www.fairchildsemi.com 2 74VCX162601 Absolute Maximum Ratings(Note 5) Supply Voltage (VCC) DC Input Voltage (VI) Output Voltage (VO) Outputs 3-State Outputs Active (Note 6) DC Input Diode Current (IIK) VI < 0V DC Output Diode Current (IOK) VO < 0V VO > VCC DC Output Source/Sink Current (IOH/IOL) DC VCC or Ground Current per Supply Pin (ICC or Ground) Storage Temperature Range (TSTG) 100 mA -65C to +150C 50 mA -50 mA +50 mA -0.5V to +4.6V -0.5 to VCC + 0.5V -50 mA -0.5V to +4.6V -0.5V to +4.6V Input Voltage Output Voltage (VO) Output in Active States Output in 3-STATE Output Current in IOH/IOL B Outputs VCC = 3.0V to 3.6V VCC = 2.3V to 2.7V VCC = 1.65V to 1.95V Output Current in IOH/IOL A Outputs VCC = 3.0V to 3.6V VCC = 2.3V to 2.7V VCC = 1.65V to 2.3V Free Air Operating Temperature (TA) Minimum Input Edge Rate (t/V) VIN = 0.8V to 2.0V, VCC = 3.0V -0.3V to 3.6V 0V to VCC 0.0V to 3.6V 12 mA 8 mA 3 mA 24 mA 18 mA 6 mA -40C to +85C 10 ns/V Recommended Operating Conditions (Note 7) Power Supply Operating Data Retention Only 1.65V to 3.6V 1.2V to 3.6V Note 5: The "Absolute Maximum Ratings" are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the Absolute Maximum Ratings. The Recommended Operating Conditions tables will define the conditions for actual device operation. Note 6: IO Absolute Maximum Rating must be observed. Note 7: Floating or unused pin (inputs or I/O's) must be held HIGH or LOW. DC Electrical Characteristics (2.7V < VCC 3.6V) Symbol VIH VIL VOH Parameter HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Voltage B Outputs IOH = -100 A IOH = -6 mA IOH = -8 mA IOH = -12 mA HIGH Level Output Voltage A Outputs IOH = -100 A IOH = -12 mA IOH = -18 mA IOH = -24 mA VOL LOW Level Output Voltage B Outputs IOL = 100 A IOL = 6 mA IOL = 8 mA IOL = 12 mA LOW Level Output Voltage A Outputs IOL = 100 A IOL = 12 mA IOL = 18 mA IOL = 24 mA II IOZ IOFF ICC ICC Input Leakage Current 3-STATE Output Leakage Power Off Leakage Current Quiescent Supply Current Increase in ICC per Input 0V VI 3.6V 0V VO 3.6V VI = V IH or VIL 0V (VI, VO) 3.6V VI = V CC or GND VCC (VI, VO) 3.6V (Note 8) VIH = VCC - 0.6V Note 8: Outputs disabled or 3-STATE only. Conditions VCC (V) 2.7 - 3.6 2.7 - 3.6 2.7 - 3.6 2.7 3.0 3.0 2.7 - 3.6 2.7 3.0 3.0 2.7 - 3.6 2.7 3.0 3.0 2.7 - 3.6 2.7 3.0 3.0 2.7 - 3.6 2.7 - 3.6 0 2.7 - 3.6 2.7 - 3.6 2.7 - 3.6 Min 2.0 Max Units V 0.8 VCC - 0.2 2.2 2.4 2.2 VCC - 0.2 2.2 2.4 2.2 0.2 0.4 0.55 0.8 0.2 0.4 0.4 0.55 5.0 10 10 20 20 750 V V V V V A A A A A 3 www.fairchildsemi.com 74VCX162601 DC Electrical Characteristics (2.3V VCC 2.7V) Symbol VIH VIL VOH Parameter HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Voltage B Outputs IOH = -100 A IOH = -4 mA IOH = -6 mA IOH = -8 mA HIGH Level Output Voltage A Outputs IOH = - 100A IOH = -6 mA IOH = -12 mA IOH = -18 mA VOL LOW Level Output Voltage B Outputs LOW Level Output Voltage A Outputs II IOZ IOFF ICC Input Leakage Current 3-STATE Output Leakage Power Off Leakage Current Quiescent Supply Current IOL = 100 A IOL = 6 mA IOL = 8 mA IOL = 100 A IOL = 12 mA IOL = 18 mA 0 VI 3.6V 0 VO 3.6V VI = VIH or VIL 0 (VI, VO) 3.6V VI = VCC or GND VCC (VI, VO) 3.6V (Note 9) Note 9: Outputs disabled or 3-STATE only. Conditions VCC (V) 2.3 - 2.7 2.3 - 2.7 2.3 - 2.7 2.3 2.3 2.3 2.3 - 2.7 2.3 2.3 2.3 2.3 - 2.7 2.3 2.3 2.3 - 2.7 2.3 2.3 2.3 - 2.7 2.3 - 2.7 0 2.3 - 2.7 2.3 - 2.7 Min 1.6 Max Units V 0.7 VCC - 0.2 2.0 1.8 1.7 VCC - 0.2 2.0 1.8 1.7 0.2 0.4 0.6 0.2 0.4 0.6 5.0 10 10 20 20 V V V V V A A A A DC Electrical Characteristics (1.65V VCC < 2.3V) Symbol VIH VIL VOH Parameter HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Voltage B Outputs HIGH Level Output Voltage A Outputs VOL LOW Level Output Voltage B Outputs LOW Level Output Voltage A Outputs II IOZ IOFF ICC Input Leakage Current 3-STATE Output Leakage Power Off Leakage Current Quiescent Supply Current IOH = -100 A IOH = -3 mA OH Conditions VCC (V) 1.65 - 2.3 1.65 - 2.3 1.65 - 2.3 1.65 1.65 - 2.3 1.65 1.65 - 2.3 1.65 1.65 - 2.3 1.65 1.65 - 2.3 1.65 - 2.3 0 1.65 - 2.3 1.65 - 2.3 Min 0.65 x VCC Max Units V 0.35 x VCC VCC - 0.2 1.4 VCC - 0.2 1.25 0.2 0.3 0.2 0.3 5.0 10 10 20 20 V V V V V A A A A = -100 A IOH = -6 mA IOL = 100 A IOL = 3 mA IOL = 100 A IOL = 6 mA 0 VI 3.6V 0 VO 3.6V VI = VIH or VIL 0 (VI, VO) 3.6V VI = VCC or GND VCC (VI, VO) 3.6V (Note 10) Note 10: Outputs disabled or 3-STATE only. www.fairchildsemi.com 4 74VCX162601 AC Electrical Characteristics (Note 11) TA = -40C to +85C, CL = 30 pF, RL = 500 Symbol Parameter VCC = 3.3V 0.3V Min fMAX tPHL, tPLH tPHL, tPLH tPHL, tPLH tPHL, tPLH tPHL, tPLH tPHL, tPLH tPZL, tPZH tPZL, tPZH tPLZ, tPHZ tPLZ, tPHZ tS tH tW tOSHL tOSLH Maximum Clock Frequency Propagation Delay B to A Propagation Delay A to B Propagation Delay Clock to A Propagation Delay Clock to B Propagation Delay LEBA to A Propagation Delay LEAB to B Output Enable Time OEBA to A Output Enable Time OEAB to B Output Disable Time OEBA to A Output Disable Time OEAB to B Setup Time Hold Time Pulse Width Output to Output Skew (Note 12) 250 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 1.5 1.0 1.5 0.5 2.9 3.8 3.5 4.4 3.5 4.4 3.8 4.3 3.7 4.3 Max VCC = 2.5 0.2V Min 200 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.5 1.0 1.5 0.5 3.5 4.6 4.4 5.5 4.4 5.8 4.9 5.9 4.2 4.9 Max VCC = 1.8V 0.15V Min 100 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 1.0 4.0 0.75 7.0 9.2 8.8 9.8 8.8 9.8 9.8 9.8 7.6 8.8 Max MHz ns ns ns ns ns ns ns ns ns ns ns ns ns ns Units Note 11: For CL = 50pF, add approximately 300ps to the AC maximum specification. Note 12: Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The specification applies to any outputs switching in the same direction, either HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH). 5 www.fairchildsemi.com 74VCX162601 Dynamic Switching Characteristics Symbol VOLP Parameter Quiet Output Dynamic Peak VOL, B to A Quiet Output Dynamic Peak VOL, A to B Quiet Output Dynamic Valley VOL, B to A Quiet Output Dynamic Valley VOL, A to B Quiet Output Dynamic Valley VOH, B to A Quiet Output Dynamic Valley VOH, A to B Conditions CL = 30 pF, VIH = VCC, VIL = 0V VCC (V) 1.8 2.5 3.3 1.8 2.5 3.3 1.8 2.5 3.3 1.8 2.5 3.3 1.8 2.5 3.3 1.8 2.5 3.3 TA = +25C Typical 0.25 0.6 0.8 0.15 0.25 0.35 -0.25 -0.6 -0.8 0.15 -0.25 -0.35 1.5 1.9 2.2 1.5 2.05 2.65 Units V VOLP CL = 30 pF, VIH = VCC, VIL = 0V V VOLV CL = 30 pF, VIH = VCC, VIL = 0V V VOLV CL = 30 pF, VIH = VCC, VIL = 0V V VOHV CL = 30 pF, VIH = VCC, VIL = 0V V VOHV CL = 30 pF, VIH = VCC, VIL = 0V V Capacitance Symbol CIN CI/O CPD Input Capacitance Output Capacitance Power Dissipation Capacitance Parameter Conditions VCC = 1.8V, 2.5V, or 3.3V, VI = 0V or VCC VI = 0V, or VCC, VCC = 1.8V, 2.5V or 3.3V VI = 0V or VCC, f = 10 MHz VCC = 1.8V, 2.5V or 3.3V TA = +25C 6 7 20 Units pF pF pF www.fairchildsemi.com 6 74VCX162601 AC Loading and Waveforms FIGURE 1. AC Test Circuit TEST tPLH, tPHL tPZL, tPLZ tPZH, tPHZ SWITCH Open 6V at VCC = 3.3 0.3V; VCC x 2 at VCC = 2.5 0.2V; 1.8V 0.15V GND FIGURE 2. Waveform for Inverting and Non-inverting Functions FIGURE 3. 3-STATE Output High Enable and Disable Times for Low Voltage Logic FIGURE 4. 3-STATE Output Low Enable and Disable Times for Low Voltage Logic FIGURE 5. Propagation Delay, Pulse Width and trec Waveforms Symbol Vmi Vmo VX VY VCC 3.3V 0.3V 1.5V 1.5V VOL + 0.3V VOH - 0.3V FIGURE 6. Setup Time, Hold Time and Recovery Time for Low Voltage Logic 2.5V 0.2V VCC /2 VCC /2 VOL + 0.15V VOH - 0.15V 1.8V 0.15V VCC /2 VCC /2 VOL + 0.15V VOH - 0.15V 7 www.fairchildsemi.com 74VCX162601 Low Voltage 18-Bit Universal Bus Transceivers with 3.6V Tolerant Inputs and Outputs and 26 Series Resistors in the B-Port Outputs Physical Dimensions inches (millimeters) unless otherwise noted 56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide Package Number MTD56 LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component in any component of a life support 1. Life support devices or systems are devices or systems device or system whose failure to perform can be reawhich, (a) are intended for surgical implant into the sonably expected to cause the failure of the life support body, or (b) support or sustain life, and (c) whose failure device or system, or to affect its safety or effectiveness. to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the www.fairchildsemi.com user. Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. |
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