Revised November 2001 74ALVC162245 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 ALVC162245 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. ■ 1.65V–3.6V VCC supply operation The 74ALVC162245 is designed for low voltage (1.65V to 3.6V) VCC applications with I/O compatibility up to 3.6V. The 74ALVC162245 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 74ALVC162245 is fabricated with an advanced CMOS technology to achieve high speed operation while maintaining low CMOS power dissipation. ■ 3.6V tolerant inputs and outputs ■ 26Ω series resistors in A Port outputs ■ tPD 3.9 ns max for 3.0V to 3.6V VCC 4.8 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) ■ Uses patented noise/EMI reduction circuitry ■ Latchup conforms to JEDEC JED78 ■ 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 74ALVC162245T Package Number Package Description 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. © 2001 Fairchild Semiconductor Corporation DS500679 www.fairchildsemi.com 74ALVC162245 Low Voltage 16-Bit Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs and 26Ω Series Resistors in A Port Outputs October 2001 74ALVC162245 Connection Diagram Logic Symbol Pin Descriptions Pin Names Description OEn Output Enable Input (Active LOW) T/Rn Transmit/Receive Input A0–A15 Side A Inputs or 3-STATE Outputs B0–B15 Side B Inputs or 3-STATE Outputs 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 L H Bus B8–B15 Data to Bus A8–A15 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 Recommended Operating Conditions (Note 4) −0.5V to +4.6V Supply Voltage (VCC) −0.5V to 4.6V DC Input Voltage (VI) Output Voltage (VO) (Note 3) Power Supply −0.5V to VCC +0.5V Operating DC Input Diode Current (IIK) VI < 0V −50 mA 0V to VCC Output Voltage (VO) DC Output Diode Current (IOK) 0V to VCC Free Air Operating Temperature (TA) VO < 0V −50 mA −40°C to +85°C Minimum Input Edge Rate (∆t/∆V) VIN = 0.8V to 2.0V, VCC = 3.0V DC Output Source/Sink Current ±50 mA (IOH/IOL) ±100 mA Supply Pin (ICC or GND) 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” table will define the conditions for actual device operation. DC VCC or GND Current per Storage Temperature Range (TSTG) 1.65V to 3.6V Input Voltage −65°C to +150°C Note 3: IO Absolute Maximum Rating must be observed. Note 4: Floating or unused control inputs must be held HIGH or LOW. DC Electrical Characteristics Symbol VIH VIL VOH VOL Parameter Conditions HIGH Level Input Voltage LOW Level Input Voltage VCC (V) Min 1.65 - 1.95 0.65 x VCC 2.3 - 2.7 1.7 2.7 - 3.6 2.0 Max V 1.65 - 1.95 0.35 x VCC 2.3 - 2.7 0.7 2.7 - 3.6 0.8 HIGH Level Output Voltage IOH = −100 µA A Outputs IOH = −2 mA 1.65 1.2 IOH = −4 mA 2.3 1.9 IOH = −6 mA 2.3 1.7 3.0 2.4 IOH = −8 mA 2.7 2 IOH = −12 mA 3.0 2 HIGH Level Output Voltage IOH = −100 µA 1.65 - 3.6 VCC - 0.2 B Outputs IOH = −4 mA 1.65 1.2 IOH = −6 mA 2.3 2.0 IOH = −12 mA 2.3 1.7 2.7 2.2 3.0 2.4 IOH = −24 mA 3.0 2 LOW Level Output Voltage IOL = 100 µA 1.65 - 3.6 0.2 A Outputs IOL = 2 mA 1.65 0.45 IOL = 4 mA 2.3 0.4 IOL = 6 mA 2.3 0.55 3.0 0.55 IOL = 8 mA 2.7 0.6 IOL = 12 mA 3.0 0.8 LOW Level Output Voltage IOL = 100 µA 1.65 - 3.6 0.2 B Outputs IOL = 4 mA 1.65 0.45 IOL = 6 mA 2.3 0.4 IOL = 12 mA 2.3 0.7 2.7 0.4 IOL = 24 mA 3.0 0.55 1.65 - 3.6 Units V VCC - 0.2 V V II Input Leakage Current 0 ≤ VI ≤ 3.6V 1.65 - 3.6 ±5.0 µA IOZ 3-STATE Output Leakage 0 ≤ VO ≤ 3.6V, V I = VIH or VIL 1.65 - 3.6 ±10 µA 3 www.fairchildsemi.com 74ALVC162245 Absolute Maximum Ratings(Note 2) 74ALVC162245 DC Electrical Characteristics Symbol (Continued) Parameter VCC Conditions Min Max Units (V) IOFF Power Off Leakage Current 0V ≤ (VI, VO) ≤ 3.6V ICC Quiescent Supply Current VI = VCC or GND, IO = 0 ∆ICC Increase in ICC per Input VIH = VCC − 0.6V 0 10 mA 3.6 40 µA 2.7 - 3.6 750 µA AC Electrical Characteristics TA = −40°C to +85°C, RL = 500Ω Symbol tPHL, tPLH Parameter CL = 50 pF VCC = 3.3V ± 0.3V CL = 30 pF VCC = 2.7V VCC = 2.5 ± 0.2V VCC = 1.8V ± 0.15V Min Max Min Max Min Max Min Max 1.3 3.0 1.5 3.5 1 3.0 1.5 6.0 1.3 3.9 1.5 4.8 1 4.3 1.5 8.6 1.3 4.3 1.5 5.4 1.0 4.9 1.5 9.3 1.3 4.7 1.5 6.2 1.0 5.7 1.5 9.8 1.3 4.2 1.5 4.7 1.0 4.2 1.5 7.6 1.3 4.6 1.5 5.3 1.0 4.8 1.5 8.6 Units Propagation Delay A to B ns Propagation Delay B to A tPZL, tPZH Output Enable Time A to B ns Output Enable Time B to A tPLZ, tPHZ Output Disable Time A to B ns Output Disable Time B to A Capacitance Symbol Parameter Conditions TA = +25°C VCC Typical Units CIN Input Capacitance VI = 0V or VCC 3.3 6 pF CIO Input, Output Capacitance VO = 0V or VCC 3.3 7 pF CPD Power Dissipation Capacitance 3.3 20 2.5 20 www.fairchildsemi.com Outputs Enabled f = 10 MHz, CL = 50 pF 4 pF TABLE 1. Values for Figure 1 TEST SWITCH tPLH, tPHL Open tPZL, tPLZ VL tPZH, tPHZ GND FIGURE 1. AC Test Circuit TABLE 2. Variable Matrix (Input Characteristics: f = 1MHz; tr = tf = 2ns; ZO = 50Ω) Symbol VCC 3.3V ± 0.3V 2.7V 2.5 ± 0.2V 1.8V ± 0.15V Vmi 1.5V 1.5V VCC/2 VCC/2 Vmo 1.5V 1.5V VCC/2 VCC/2 VX VOL + 0.3V VOL + 0.3V VOL + 0.15V VOL + 0.15V VY VOH − 0.3V VOH − 0.3V VOH − 0.15V VOH − 0.15V VL 6V 6V VCC*2 VCC*2 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 5 www.fairchildsemi.com 74ALVC162245 AC Loading and Waveforms 74ALVC162245 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 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. 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