Revised April 1999 74VCX162245 Low Voltage 16-Bit Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs and 26Ω Series Resistors in A Port Outputs General Description Features 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 (1.65V to 3.6V) VCC applications with I/O compatibility up to 3.6V. The 74VCX162245 is also designed with 26Ω 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. ■ 1.65V–3.6V VCC supply operation ■ 3.6V tolerant inputs and outputs ■ 26Ω series resistors in A port outputs ■ tPD (B to A) 3.4 ns max for 3.0V to 3.6V VCC 4.3 ns max for 2.3V to 2.7V VCC 8.6 ns max for 1.65V to 1.95V VCC ■ Power-down high impedance inputs and outputs ■ Supports live insertion/withdrawal (Note 1) ■ Static Drive (IOH/IOL A outputs) ±12 mA @ 3.0V VCC ±8 mA @ 2.3V VCC ±3 mA @ 1.65V VCC ■ Uses patented noise/EMI reduction circuitry ■ Latchup performance exceeds 300 mA ■ 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 Package Number Package Description 74VCX162245MTD MTD48 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 © 1999 Fairchild Semiconductor Corporation DS500048.prf OEn Output Enable Input T/Rn Transmit/Receive Input A0–A15 Side A Inputs or 3-STATE Outputs B0–B15 Side B Inputs or 3-STATE Outputs www.fairchildsemi.com 74VCX162245 Low Voltage 16-Bit Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs and 26Ω Series Resistors in A Port Outputs October 1996 74VCX162245 Connection Diagram Truth Tables Inputs T/R1 OE1 Outputs L L L H Bus B0–B7 Data to Bus A0–A7 Bus A0–A7 Data to Bus B0–B7 H X HIGH Z State on A0–A7, B0–B7 Inputs OE2 T/R2 Outputs L L Bus B8–B15 Data to Bus A8–A15 L H Bus A8–A15 Data to Bus B8–B15 H X HIGH Z State on A8–A15, B8–B15 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 Supply Voltage (VCC) −0.5V to +4.6V DC Input Voltage (VI) −0.5V to +4.6V Output Voltage (VO) Output in Active States −0.5 to VCC + 0.5V DC Input Diode Current (IIK) VI < 0V −50 mA DC Output Diode Current (IOK) VO < 0V −50 mA VO > VCC +50 mA ±8 mA VCC = 1.65V to 1.95V ±3 mA VCC = 3.0V to 3.6V ± 24mA VCC = 2.3V to 2.7V ± 18mA ±6mA Free Air Operating Temperature (TA) DC VCC or Ground Current per Storage Temperature Range (TSTG) ±12 mA VCC = 2.3V to 2.7V VCC = 1.65V to 2.3V ±50 mA −40°C to +85°C Minimum Input Edge Rate (∆t/∆V) ±100 mA Supply Pin (ICC or Ground) VCC = 3.0V to 3.6V Output Current in ± IOH/IOL-B Outputs DC Output Source/Sink Current (IOH/IOL) 0.0V to 3.6V Output Current in IOH/IOL-A Outputs −0.5V to +4.6V Outputs Active (Note 3) 0V to VCC Output in 3-STATE Output Voltage (VO) Outputs 3-State −0.3V to 3.6V Input Voltage VIN = 0.8V to 2.0V, VCC = 3.0V −65°C to +150°C 10 ns/V 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. Recommended Operating Conditions (Note 4) Power Supply Note 3: IO Absolute Maximum Rating must be observed. Operating 1.65V to 3.6V Data Retention Only Note 4: Floating or unused pins (inputs or I/O's) must be held HIGH or LOW. 1.2V to 3.6V DC Electrical Characteristics (2.7V < VCC ≤ 3.6V) Symbol Parameter Conditions VCC (V) VIH HIGH Level Input Voltage 2.7–3.6 VIL LOW Level Input Voltage 2.7–3.6 VOH HIGH Level Output Voltage A Outputs HIGH Level Output Voltage B Outputs VOL IOH = −100 µA Min Max 2.0 V 0.8 2.7–3.6 VCC − 0.2 IOH = −6 mA 2.7 2.2 IOH = −8 mA 3.0 2.4 IOH = −12 mA 3.0 2.2 IOH = −100 µA 2.7–3.6 VCC − 0.2 IOH = −12 mA 2.7 2.2 IOH = −18 mA 3.0 2.4 2.2 V V V IOH = −24 mA 3.0 LOW Level Output Voltage IOL = 100 µA 2.7–3.6 0.2 A Outputs IOL = 6 mA 2.7 0.4 IOL = 8 mA 3.0 0.55 0.8 IOL = 12 mA 3.0 LOW Level Output Voltage IOL = 100 µA 2.7–3.6 0.2 B Outputs IOL = 12 mA 2.7 0.4 IOL = 18 mA 3.0 0.4 IOL = 24 mA Units V V 3.0 0.55 II Input Leakage Current 0V ≤ VI ≤ 3.6V 2.7–3.6 ±5.0 µA IOZ 3-STATE Output Leakage 0V ≤ VO ≤ 3.6V 2.7–3.6 ±10 µA µA VI = V IH or VIL IOFF Power Off Leakage Current 0V ≤ (VI, VO) ≤ 3.6V 0 10 ICC Quiescent Supply Current VI = V CC or GND 2.7–3.6 20 VCC ≤ (VI, VO) ≤ 3.6V (Note 5) 2.7–3.6 ±20 VIH = VCC − 0.6V 2.7–3.6 750 ∆ICC Increase in ICC per Input µA µA Note 5: Outputs disabled or 3-STATE only. 3 www.fairchildsemi.com 74VCX162245 Absolute Maximum Ratings(Note 2) 74VCX162245 DC Electrical Characteristics (2.3V ≤ VCC ≤ 2.7V) Symbol Parameter VCC Conditions (V) VIH HIGH Level Input Voltage 2.3–2.7 VIL LOW Level Input Voltage 2.3–2.7 VOH HIGH Level Output Voltage IOH = −100 µA A Outputs VOL Min Max 1.6 V 0.7 2.3–2.7 VCC − 0.2 IOH = −4 mA 2.3 2.0 IOH = −6 mA 2.3 1.8 IOH = −8 mA 2.3 1.7 2.3–2.7 VCC − 0.2 HIGH Level Output Voltage IOH = −100 µA B Outputs IOH = −6 mA 2.3 2.0 IOH = −12 mA 2.3 1.8 1.7 Units V V V IOH = −18 mA 2.3 LOW Level Output Voltage IOL = 100 µA 2.3–2.7 0.2 A Outputs IOL = 6 mA 2.3 0.4 IOL = 8 mA 2.3 0.6 LOW Level Output Voltage IOL = 100 µA 2.3–2.7 0.2 B Outputs IOL = 12 mA 2.3 0.4 IOL = 18 mA 2.3 0.6 V V II Input Leakage Current 0 ≤ VI ≤ 3.6V 2.3–2.7 ±5.0 µA IOZ 3-STATE Output Leakage 0 ≤ VO ≤ 3.6V 2.3–2.7 ±10 µA µA VI = VIH or VIL IOFF Power Off Leakage Current 0 ≤ (VI, VO) ≤ 3.6V 0 10 ICC Quiescent Supply Current VI = VCC or GND 2.3–2.7 20 VCC ≤ (VI, VO) ≤ 3.6V (Note 6) 2.3–2.7 ±20 µA Note 6: Outputs disabled or 3-STATE only. DC Electrical Characteristics (1.65V ≤ VCC < 2.3V) Symbol Parameter Conditions VCC (V) VIH HIGH Level Input Voltage 1.65-2.3 VIL LOW Level Input Voltage 1.65-2.3 VOH HIGH Level Output Voltage IOH = −100 µA A Outputs IOH = −3 mA HIGH Level Output Voltage IOH = −100 µA B Outputs VOL 1.65-2.3 Min Max 0.65 × VCC V 0.35 × VCC VCC − 0.2 1.65 1.4 VCC − 0.2 IOH = −6 mA 1.65 1.25 LOW Level Output Voltage IOL = 100 µA 1.65-2.3 0.2 A Outputs IOL = 3 mA 1.65 0.3 1.65-2.3 0.2 1.65 0.3 IOL = 100 µA B Outputs IOL = 6 mA V II Input Leakage Current 0 ≤ VI ≤ 3.6V 1.65-2.3 ±5.0 IOZ 3-STATE Output Leakage 0 ≤ VO ≤ 3.6V 1.65-2.3 ±10 VI = VIH or VIL IOFF Power Off Leakage Current 0 ≤ (VI, VO) ≤ 3.6V 0 10 ICC Quiescent Supply Current VI = VCC or GND 1.65-2.3 20 VCC ≤ (VI, VO) ≤ 3.6V (Note 7) 1.65-2.3 ±20 Note 7: Outputs disabled or 3-STATE only. www.fairchildsemi.com 4 V V 1.65-2.3 LOW Level Output Voltage Units V V µA µA µA µA (Note 8) TA = −40°C to +85°C, CL = 30 pF, RL = 500Ω Symbol Parameter VCC = 3.3V ± 0.3V VCC = 2.5 ± 0.2V VCC = 1.8V ± 0.15 Min Max Min Max Min Max Units tPHL, tPLH Prop Delay, A to B 0.8 2.5 1.0 3.0 1.5 6.0 ns tPHL, tPLH Prop Delay, B to A 0.8 3.4 1.0 4.3 1.5 8.6 ns tPZL, tPZH Output Enable Time, A to B 0.8 3.8 1.0 4.9 1.5 9.3 ns tPZL, tPZH Output Enable Time, B to A 0.8 4.2 1.0 5.7 1.5 9.8 ns tPLZ, tPHZ Output Disable Time, A to B 0.8 3.7 1.0 4.2 1.5 7.6 ns tPLZ, tPHZ Output Disable Time, B to A 0.8 4.1 1.0 4.8 1.5 8.6 ns tOSHL Output to Output 0.75 ns tOSLH Skew (Note 9) 0.5 0.5 Note 8: For CL = 50pF, add approximately 300ps to the AC maximum specification. Note 9: 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). Dynamic Switching Characteristics Symbol VOLP VOLP VOLV VOLV VOHV VOHV Parameter Conditions Quiet Output Dynamic Peak VOL, A to B CL = 30 pF, VIH = VCC, VIL = 0V Quiet Output Dynamic Peak VOL, B to A CL = 30 pF, VIH = VCC, VIL = 0V Quiet Output Dynamic Valley VOL, A to B CL = 30 pF, VIH = VCC, VIL = 0V Quiet Output Dynamic Valley VOL, B to A CL = 30 pF, VIH = VCC, VIL = 0V Quiet Output Dynamic Valley VOH, A to B CL = 30 pF, VIH = VCC, VIL = 0V Quiet Output Dynamic Valley VOH, B to A CL = 30 pF, VIH = VCC, VIL = 0V VCC (V) TA = +25°C Typical Units 1.8 2.5 3.3 0.25 0.6 0.8 V 1.8 2.5 3.3 0.15 0.25 0.35 V 1.8 2.5 3.3 −0.25 −0.6 −0.8 V 1.8 2.5 3.3 0.15 −0.25 −0.35 V 1.8 2.5 3.3 1.5 1.9 2.2 V 1.8 2.5 3.3 1.55 2.05 2.65 V TA = +25°C Units Capacitance Symbol Parameter Conditions CIN Input Capacitance VCC = 1.8V, 2.5V, or 3.3V, VI = 0V or VCC 6 pF CI/O Output Capacitance VI = 0V, or VCC, VCC = 1.8V, 2.5V or 3.3V 7 pF CPD Power Dissipation Capacitance 20 pF VI = 0V or VCC, f = 10 MHz VCC = 1.8V, 2.5V or 3.3V 5 www.fairchildsemi.com 74VCX162245 AC Electrical Characteristics 74VCX162245 AC Loading and Waveforms FIGURE 1. AC Test Circuit TEST SWITCH tPLH, tPHL Open tPZL, tPLZ 6V at VCC = 3.3 ± 0.3V; VCC x 2 at VCC = 2.5 ± 0.2V; 1.8V ± 0.15V tPZH, tPHZ 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 www.fairchildsemi.com VCC 3.3V ± 0.3V 2.5V ± 0.2V 1.8V ± 0.15V Vmi 1.5V VCC/2 VCC/2 Vmo 1.5V VCC/2 VCC/2 VX VOL + 0.3V VOL + 0.15V VOL + 0.15V VY VOH − 0.3V VOH − 0.15V VOH − 0.15V 6 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide Package Number MTD48 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. 74VCX162245 Low Voltage 16-Bit Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs and 26Ω Series Resistors in A Port Outputs Physical Dimensions inches (millimeters) unless otherwise noted