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| 74VCX162245 Low Voltage 16-Bit Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs and 26: Series Resistors in A Port Outputs October 1996 Revised June 2005 74VCX162245 Low Voltage 16-Bit Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs and 26: Series Resistors in A Port Outputs General Description The VCX162245 contains sixteen non-inverting bidirectional buffers with 3-STATE outputs and is intended for bus oriented applications. The device is byte controlled. Each byte has separate 3-STATE control inputs which can be shorted together for full 16-bit operation. The T/R inputs determine the direction of data flow through the device. The OE inputs disable both the A and B ports by placing them in a high impedance state. The 74VCX162245 is designed for low voltage (1.4V to 3.6V) VCC applications with I/O compatibility up to 3.6V. The 74VCX162245 is also designed with 26: series resistance in the A Port outputs. This design reduces line noise in applications such as memory address drivers, clock drivers, and bus transceivers/transmitters. The 74VCX162245 is fabricated with an advanced CMOS technology to achieve high speed operation while maintaining low CMOS power dissipation. Features s 1.4V to 3.6V VCC supply operation s 3.6V tolerant inputs and outputs s 26: series resistors in A port outputs s tPD (B to A) 3.4 ns max for 3.0V to 3.6V VCC s Power-down high impedance inputs and outputs s Supports live insertion/withdrawal (Note 1) s Static Drive (IOH/IOL A outputs) r12 mA @ 3.0V 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 74VCX162245MTD Package Number MTD48 Package Description 48-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. Logic Symbol Pin Descriptions Pin Description Names OEn T/Rn A0-A15 B0-B15 Output Enable Input Transmit/Receive Input Side A Inputs or 3-STATE Outputs Side B Inputs or 3-STATE Outputs (c) 2005 Fairchild Semiconductor Corporation DS500048 www.fairchildsemi.com 74VCX162245 Connection Diagram Truth Tables Inputs OE1 L L H Inputs OE2 L L H T/R2 L H X Bus B8-B15 Data to Bus A8-A15 Bus A8-A15 Data to Bus B8-B15 HIGH Z State on A8-A15, B8-B15 T/R1 L H X Bus B0-B7 Data to Bus A0-A7 Bus A0-A7 Data to Bus B0-B7 HIGH Z State on A0-A7, B0-B7 Outputs Outputs H HIGH Voltage Level L LOW Voltage Level X Immaterial (HIGH or LOW, inputs and I/O's may not float) Z High Impedance Logic Diagram www.fairchildsemi.com 2 74VCX162245 Absolute Maximum Ratings(Note 2) Supply Voltage (VCC) DC Input Voltage (VI) Output Voltage (VO) Outputs 3-State Outputs Active (Note 3) 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) 0.5V to 4.6V 0.5V to 4.6V 0.5V to 4.6V 0.5 to VCC 0.5V 50 mA 50 mA 50 mA r50 mA r100 mA 65qC to 150qC Recommended Operating Conditions (Note 4) Power Supply Operating Data Retention Only Input Voltage Output Voltage (VO) Output in Active States Output in 3-STATE Output Current in IOH/IOL-A Outputs VCC VCC VCC VCC VCC VCC 3.0V to 3.6V 2.3V to 2.7V 1.65V to 1.95V 3.0V to 3.6V 2.3V to 2.7V 1.65V to 2.3V 0V to VCC 0.0V to 3.6V 1.4V to 3.6V 1.2V to 3.6V 0.3V to 3.6V r12 mA r8 mA r3 mA r 24mA r 18mA r6mA 40qC to 85qC 10 ns/V Output Current in r IOH/IOL-B Outputs Free Air Operating Temperature (TA) Minimum Input Edge Rate ('t/'V) VIN 0.8V to 2.0V, VCC 3.0V Note 2: 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 3: IO Absolute Maximum Rating must be observed. Note 4: Floating or unused pins (inputs or I/O's) must be held HIGH or LOW. DC Electrical Characteristics Symbol VIH Parameter HIGH Level Input Voltage Conditions VCC (V) 2.7 - 3.6 2.3 - 2.7 1.65 - 2.3 1.4 - 1.6 VIL LOW Level Input Voltage 2.7 - 3.6 2.3 - 2.7 1.65 - 2.3 1.4 - 1.6 VOH HIGH Level Output Voltage A Outputs IOH IOH IOH IOH IOH IOH IOH IOH IOH IOH IOH IOH Min 2.0 1.6 0.65 x VCC 0.65 x VCC 0.8 0.7 0.35 x VCC 0.35 x VCC VCC - 0.2 2.2 2.4 2.2 VCC - 0.2 2.0 1.8 1.7 VCC - 0.2 1.4 VCC - 0.2 1.05 V V V Max Units 100 PA 6 mA 8 mA 12 mA 100 PA 4 mA 6 mA 8 mA 100 PA 3 mA 100 PA 1 mA 2.7 - 3.6 2.7 3.0 3.0 2.3 - 2.7 2.3 2.3 2.3 1.65 - 2.3 .65 1.4 - 1.6 1.4 3 www.fairchildsemi.com 74VCX162245 DC Electrical Characteristics Symbol VOH Parameter HIGH Level Output Voltage B Outputs IOH IOH IOH IOH IOH IOH IOH IOH IOH IOH IOH IOH VOL LOW Level Output Voltage A Outputs IOL IOL IOL IOL IOL IOL IOL IOL IOL IOL IOL VOL LOW Level Output Voltage B Outputs IOL IOL IOL IOL IOL IOL IOL IOL IOL IOL IOL II IOZ IOFF ICC Input Leakage Current 3-STATE Output Leakage Power Off Leakage Current Quiescent Supply Current Increase in ICC per Input (Continued) VCC (V) 2.7 - 3.6 2.7 3.0 3.0 2.7 - 3.6 2.3 2.3 2.3 1.65 - 2.3 1.65 1.4 - 1.6 1.4 2.7 - 3.6 2.7 3.0 3.0 2.3 - 2.7 2.3 2.3 1.65 - 2.3 1.65 1.4 - 1.6 1.4 2.7 - 3.6 2.7 3.0 3.0 2.3 - 2.7 2.3 2.3 1.65 - 2.3 1.65 1.4 - 1.6 1.4 2.7 - 3.6 2.7 - 3.6 0 2.7 - 3.6 2.7 - 3.6 2.7 - 3.6 Conditions Min VCC - 0.2 2.2 2.4 2.2 VCC - 0.2 2.0 1.8 1.7 VCC - 0.2 1.25 VCC - 0.2 1.05 Max Units 100 PA 12 mA 18 mA 24 mA 100 PA 6 mA 12 mA 18 mA 100 PA 6 mA 100 PA 2 mA 100 PA 6 mA 8 mA 12 mA 100 PA 6 mA 8 mA 100 PA 3 mA 100 PA 2 mA 100 PA 12 mA 18 mA 24 mA 100 PA 12 mA 18 mA 100 PA 6 mA 100 PA 2 mA V 0.2 0.4 0.55 0.8 0.2 0.4 0.6 0.2 0.3 0.2 0.35 0.2 0.4 0.4 0.55 0.2 0.4 0.6 0.2 0.3 0.2 0.35 V V 0V d VI d 3.6V 0V d VO d 3.6V VI VI VIH VIH or VIL 0V d (VI, VO) d 3.6V VCC or GND VCC 0.6V VCC d (VI, VO) d 3.6V (Note 5) r5.0 r10 10 20 PA PA PA PA PA r20 750 'ICC Note 5: Outputs disabled or 3-STATE only. www.fairchildsemi.com 4 74VCX162245 AC Electrical Characteristics Symbol tPHL, tPLH Parameter Propagation Delay B to A CL tPZL, tPZH Output Enable Time B to A CL tPLZ, tPHZ Output Disable Time B to A CL tPHL, tPLH Propagation Delay A to B CL tPZL, tPZH Output Enable Time A to B CL tPLZ, tPHZ Output Disable Time A to B CL tOSHL, tOSLH Output-to-Output Skew (Note 7) CL Note 6: For CL (Note 6) Conditions VCC (V) 3.3 r 0.3 2.5 r 0.2 1.8 r 0.15 TA 40qC to 85qC Max 3.4 4.3 8.6 17.2 4.2 5.7 9.8 19.6 4.1 4.8 8.6 17.2 2.5 3.0 6.0 12.0 3.5 4.1 8.2 16.4 3.5 3.8 6.8 13.6 0.5 0.5 0.75 1.5 Min 0.8 1.0 1.5 1.0 0.8 1.0 1.5 1.0 0.8 1.0 1.5 1.0 0.8 1.0 1.5 1.0 0.8 1.0 1.5 1.0 0.8 1.0 1.5 1.0 Units Figure Number Figures 1, 2 Figures 5, 6 Figures 1, 3, 4 Figures 5, 7, 8 Figures 1, 3, 4 Figures 5, 7, 8 Figures 1, 2 Figures 5, 6 Figures 1, 3, 4 Figures 5, 7, 8 Figures 1, 3, 4 Figures 5, 7, 8 CL 30 pF, RL 500: ns 15 pF, RL 30 pF, RL 2k: 500: 1.5 r 0.1 3.3 r 0.3 2.5 r 0.2 1.8 r 0.15 CL ns 15 pF, RL 30 pF, RL 2k: 500: 1.5 r 0.1 3.3 r 0.3 2.5 r 0.2 1.8 r 0.15 CL ns 15 pF, RL 30 pF, RL 2k: 500: 1.5 r 0.1 3.3 r 0.3 2.5 r 0.2 1.8 r 0.15 CL ns 15 pF, RL 30 pF, RL 2k: 500: 1.5 r 0.1 3.3 r 0.3 2.5 r 0.2 1.8 r 0.15 CL ns 15 pF, RL 30 pF, RL 2k: 500: 1.5 r 0.1 3.3 r 0.3 2.5 r 0.2 1.8 r 0.15 CL ns 15 pF, RL 30 pF, RL 2k: 500: 1.5 r 0.1 3.3 r 0.3 2.5 r 0.2 1.8 r 0.15 CL ns 15 pF, RL 2k: 1.5 r 0.1 50pF, add approximately 300ps to the AC maximum specification. Note 7: 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 74VCX162245 Dynamic Switching Characteristics Symbol VOLP Parameter Quiet Output Dynamic Peak VOL, A to B VOLP Quiet Output Dynamic Peak VOL, B to A VOLV Quiet Output Dynamic Valley VOL, A to B VOLV Quiet Output Dynamic Valley VOL, B to A VOHV Quiet Output Dynamic Valley VOH, A to B VOHV Quiet Output Dynamic Valley VOH, B to A CL 30 pF, VIH VCC, VIL 0V CL 30 pF, VIH VCC, VIL 0V CL 30 pF, VIH VCC, VIL 0V CL 30 pF, VIH VCC, VIL 0V CL 30 pF, VIH VCC, VIL 0V CL 30 pF, VIH Conditions 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 25qC 0.25 0.6 0.8 0.15 0.25 0.35 Typical Units V V 0.25 0.6 0.8 0.15 0.25 0.35 1.5 1.9 2.2 1.55 2.05 2.65 V V V V Capacitance Symbol CIN CI/O CPD Input Capacitance Output Capacitance Power Dissipation Capacitance Parameter VCC VI VI VCC Conditions 1.8V, 2.5V, or 3.3V, VI 0V, or VCC, VCC 0V or VCC, f 10 MHz 0V or VCC TA 25qC 6 7 20 Units pF pF pF 1.8V, 2.5V or 3.3V 1.8V, 2.5V or 3.3V www.fairchildsemi.com 6 74VCX162245 AC Loading and Waveforms (VCC 3.3V r 0.3V to 1.8V r 0.15V) FIGURE 1. AC Test Circuit TEST tPLH, tPHL tPZL, tPLZ tPZH, tPHZ SWITCH Open 6V at VCC 3.3 r 0.3V; VCC x 2 at VCC 2.5 r 0.2V; 1.8V r 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 Symbol Vmi Vmo VX VY VCC 3.3V r 0.3V 1.5V 1.5V VOL 0.3V VOH 0.3V 2.5V r 0.2V VCC/2 VCC/2 VOL 0.15V VOH 0.15V 1.8V r 0.15V VCC/2 VCC/2 VOL 0.15V VOH 0.15V 7 www.fairchildsemi.com 74VCX162245 AC Loading and Waveforms (VCC 1.5V r 0.1V) FIGURE 5. AC Test Circuit TEST tPLH, tPHL tPZL, tPLZ tPZH, tPHZ SWITCH Open VCC x 2 at VCC GND 1.5V r 0.1V FIGURE 6. Waveform for Inverting and Non-inverting Functions FIGURE 7. 3-STATE Output HIGH Enable and Disable Times for LOW Voltage Logic FIGURE 8. 3-STATE Output LOW Enable and Disable Times for LOW Voltage Logic Symbol Vmi Vmo VX VY VCC 1.5V r 0.1V VCC/2 VCC/2 VOL 0.1V VOH 0.1V www.fairchildsemi.com 8 74VCX162245 Low Voltage 16-Bit Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs and 26: Series Resistors in A Port Outputs Physical Dimensions inches (millimeters) unless otherwise noted 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide Package Number MTD48 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. 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: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure 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 user. 9 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com www.fairchildsemi.com |
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