74VCXH2245

74VCXH2245 Low Voltage Bidirectional Transceiver with Bushold June 1999 Revised July 1999 74VCXH2245 Low Voltage Bidirectional Transceiver with Bushold and 26Ω Series Resistors in B Outputs General Description The VCXH2245 contains eight non-inverting bidirectional buffers with 3-STATE outputs and is intended for bus oriented applications. The T/R input determines the direction of data flow. The OE input disables both the A and B Ports by placing them in a high impedance state. The VCXH2245 data inputs include active bushold circuitry, eliminating the need for external pull-up resistors to hold unused or floating data inputs at a valid logic level. The 74VCXH2245 is designed for low voltage (1.65V to 3.6V) VCC applications. The VCXH2245 is also designed with 26Ω series resistance in the B Port outputs. This design reduces line noise in applications such as memory address drivers, clock drivers, and bus transceivers transmitters The 74VCXH2245 is fabricated with an advanced CMOS technology to achieve high-speed operation while maintaining low CMOS power dissipation. Features s 1.65V-3.6V VCC supply operation s 3.6V tolerant control inputs s Bushold on data inputs eliminates the need for external pull-up/pull-down resistors s 26Ω series resistors in B Port outputs s tPD (A to B) 4.4 ns max for 3.0V to 3.6V VCC 5.6 ns max for 2.3V to 2.7V VCC 9.8 ns max for 1.65V to 1.95V VCC 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 Quiet Series™ noise/EMI reduction circuitry s Latchup performance exceeds 300 mA s ESD performance: Human body model > 2000V Machine model > 200V Ordering Code: Order Number 74VCXH2245WM 74VCXH2245MTC Package Number M20B MTC20 Package Description 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Logic Symbol Connection Diagram Quiet Series™ is a trademark of Fairchild Semiconductor Corporation. © 1999 Fairchild Semiconductor Corporation ds500199 www.fairchildsemi.com 74VCXH2245 Pin Descriptions Pin Names OE T/R A0–A7 B0–B7 Description Output Enable Input (Active LOW) Transmit/Receive Input Side A Bushold Inputs or 3-STATE Outputs Side B Bushold Inputs or 3-STATE Outputs Truth Table Inputs Outputs OE L L H T/R 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 H = H IGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance Logic Diagram www.fairchildsemi.com 2 74VCXH2245 Absolute Maximum Ratings(Note 1) Supply Voltage (VCC) DC Input Voltage (VI) T/R, OE I/O Ports DC Output Voltage (VO)(Note 2) 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 Storage Temperature (TSTG) ±100 mA −65°C to +150°C −50 mA +50 mA ±50 mA −0.5V to 4.6 V −0.5V to VCC + 0.5V −0.5V to VCC + 0.5V −50 mA −0.5V to +4.6V Recommended Operating Conditions (Note 3) Power Supply Voltage (VCC) Operating Data Retention Only Input Voltage Output Voltage (VO) 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 Output Current in IOH/IOL - B 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 10 ns/V ± 12 mA ± 8 mA ± 3 mA −40°C to +85°C ±24 mA ±18 mA ±6 mA 1.65V to 3.6V 1.2V to 3.6V −0.3V to VCC 0V to VCC Note 1: 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. Note 2: IO Absolute Maximum Rating must be observed. Note 3: Floating or unused control inputs must be held HIGH or LOW. DC Electrical Characteristics Symbol VIH VIL VOH Parameter HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Voltage A Outputs (2.7V < VCC ≤ 3.6V) Conditions VCC (V) 2.7–3.6 2.7–3.6 Min 2.0 0.8 VCC − 0.2 2.2 2.4 2.2 VCC–0.2 2.2 2.4 2.2 0.2 0.4 0.4 0.55 0.2 0.4 0.55 0.8 ±5.0 75 −75 450 −450 ±10 20 750 µA µA µA µA µA µA V V V V Max Units V V IOH = −100 µA IOH = −12 mA IOH = −18 mA IOH = −24 mA 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 3.0 3.0 3.6 3.6 2.7–3.6 2.7–3.6 2.7–3.6 HIGH Level Output Voltage B Outputs IOH = −100 µA IOH = −6 mA IOH = −8 mA IOH = −12 mA VOL LOW Level Output Voltage A Outputs IOL = 100 µA IOL = 12 mA IOL = 18 mA IOL = 24 mA LOW Level Output Voltage B Outputs IOL = 100 µA IOL = 6 mA IOL = 8 mA IOL = 12 mA II II(HOLD) II(OD) IOZ ICC ∆ICC Input Leakage Current Bushold Input Minimum Drive Hold Current Bushold Input Over-Drive Current to Change State 3-STATE Output Leakage Quiescent Supply Current Increase in ICC per Input VIN = VCC or GND VIN = 0.8V VIN = 2.0V (Note 4) (Note 5) VO = VCC or GND VI = VIH or VIL VI = VCC or GND VIH = VCC −0.6V Note 4: An external driver must source at least the specified current to switch from LOW-to-HIGH. Note 5: An external driver must sink at least the specified current to switch from HIGH-to-LOW. 3 www.fairchildsemi.com 74VCXH2245 DC Electrical Characteristics Symbol VIH VIL VOH Parameter HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Voltage A Outputs (2.3V ≤ VCC ≤ 2.7V) Conditions VCC (V) 2.3–2.7 2.3–2.7 Min 1.6 0.7 VCC − 0.2 2.0 1.8 1.7 VCC–2 2.0 1.8 1.7 0.2 0.4 0.6 0.2 0.4 0.6 ±5.0 45 −45 300 −300 ±10 20 µA µA µA µA µA V V V V Max Units V V IOH = −100 µA IOH = −6 mA IOH = −12 mA IOH = −18 mA 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 2.3 2.7 2.7 2.3–2.7 2.3–2.7 HIGH Level Output Voltage B Outputs IOH = −100 µA IOH = −4 mA IOH = −6 mA IOH = −8mA VOL LOW Level Output Voltage A Outputs LOW Level Output Voltage B Outputs IOL = 100 µA IOL = 12 mA IOL = 18 mA IOL = 100 µA IOL = 6 mA IOL = 8 mA VIN = VCC or GND VIN = 0.7V VIN = 1.6V (Note 6) (Note 7) VO = VCC or GND VI = VIH or VIL VI = VCC or GND II II(HOLD) II(OD) IOZ ICC Input Leakage Current Bushold Input Minimum Drive Hold Current Bushold Input Over−Drive Current to Change State 3-STATE Output Leakage Quiescent Supply Current Note 6: An external driver must source at least the specified current to switch from LOW-to-HIGH. Note 7: An external driver must sink at least the specified current to switch from HIGH-to-LOW. DC Electrical Characteristics Symbol VIH VIL VOH Parameter HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Voltage A Outputs HIGH Level Output Voltage B Outputs VOL LOW Level Output Voltage A Outputs LOW Level Output Voltage B Outputs II II(HOLD) II(OD) IOZ ICC Input Leakage Current Bushold Input Minimum Drive Hold Current Bushold Input Over-Drive Current to Change State 3-STATE Output Leakage Quiescent Supply Current (1.65V ≤ VCC < 2.3V) Conditions VCC (V) 1.65–2.3 1.65–2.3 Min 0.65 x VCC 0.35 x VCC VCC − 0.2 1.25 VCC–0.2 1.25 0.2 0.3 0.2 0.3 ±5.0 25 −25 200 −200 ±10 20 Max Units V V V V V V µA µA µA µA µA IOH = −100 µA IOH = −6 mA IOH = −100 µA IOH = −3 mA IOL = 100 µA IOL = 6 mA IOL = 100µA IOL = 3 mA 0 ≤ VI ≤ 3.6V VIN = 0.57V VIN = 1.07V (Note 8) (Note 9) VO = VCC or GND VI = VCC or GND 1.65–1.95 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 1.65 1.95 1.95 1.65–2.3 1.65–2.3 Note 8: An external driver must source at least the specified current to switch from LOW-to-HIGH. Note 9: An external driver must sink at least the specified current to switch from HIGH-to-LOW. www.fairchildsemi.com 4 74VCXH2245 AC Electrical Characteristics (Note 10) TA = −40°C to +85°C, CL = 30 pF, RL = 500Ω Symbol Parameter VCC = 3.3V ± 0.3V Min tPHL tPLH tPHL tPLH tPZL tPZH tPZL tPZH tPLZ tPHZ tPLZ tPHZ tOSHL tOSLH Propagation Delay, A to B Propagation Delay, B to A Output Enable Time, A to B Output Enable Time, B to A Output Disable Time, A to B Output Disable Time, B to A Output to Output Skew (Note 11) 0.6 0.6 0.6 0.6 0.6 0.6 Max 4.4 3.5 5.0 4.5 4.2 3.6 0.5 VCC = 2.5V ± 0.2V Min 0.8 0.8 0.8 0.8 0.8 0.8 Max 5.6 4.2 6.6 5.6 4.7 4.0 0.5 VCC = 1.8V ± 0.15V Min 1.5 1.5 1.5 1.5 1.5 1.5 Max 9.8 8.4 9.8 9.8 8.5 7.2 0.75 ns ns ns ns ns ns ns Units Note 10: For CL = 50 pF, add approximately 300 ps to the AC maximum specification. Note 11: 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 Parameter Quiet Output Dynamic Peak VOL, B to A Quiet Output Dynamic Peak VOL, A to B VOLV Quiet Output Dynamic Valley VOL, B to A Quiet Output Dynamic Valley, VOL, A to B VOHV Quiet Output Dynamic Valley VOH, B to A Quiet Output Dynamic Valley VOH, A to B CL = 30 pF, VIH = VCC, V IL = 0V CL = 30 pF, VIH = VCC, V IL = 0V CL = 30 pF, VIH = VCC, V IL = 0V CL = 30 pF, VIH = VCC, V IL = 0V CL = 30 pF, VIH = VCC, VIL = 0V 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 = 25°C Typical 0.3 0.7 1.0 0.2 0.45 0.65 −0.3 −0.7 −1.0 −0.2 −0.45 −0.65 1.3 1.7 2.0 1.5 2.0 2.5 V V V V V V Units Capacitance Symbol CIN CI/O CPD Parameter Input Capacitance Input/Output Capacitance Power Dissipation Capacitance Conditions VI = 0V or VCC, VCC = 1.8V, 2.5V or 3.3V 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 = +25°C Typical 6 7 20 pF pF pF Units 5 www.fairchildsemi.com 74VCXH2245 AC Loading and Waveforms FIGURE 1. AC Test Circuit TEST tPLH, tPHL tPZL, tPLZ SWITCH Open 6V at VCC = 3.3 ± 0.3V; VCC x 2 at VCC = 2.5V ± 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 VCC Symbol Vmi Vmo Vx Vy 3.3V ± 0.3V 1.5V 1.5V VOL + 0.3V VOH − 0.3V 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 www.fairchildsemi.com 6 74VCXH2245 Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Package Number M20B 7 www.fairchildsemi.com 74VCXH2245 Low Voltage Bidirectional Transceiver with Bushold Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Package Number MTC20 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. www.fairchildsemi.com 8 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