Revised December 2005 NC7SZD384 1-Bit Low Power Bus Switch with Level Shifting General Description The NC7SZD384 provides 1-bit of high-speed CMOS TTL-compatible bus switch. The low on resistance of the switch allows inputs to be connected to outputs with minimal propagation delay and without generating additional ground bounce noise. The device is organized as a 1-bit switch with a bus enable (OE) signal. When OE is LOW, the switch is on and Port A is connected to Port B. When OE is HIGH, the switch is open and a high-impedance state exists between the two ports. Reduced voltage drive to the gate of the FET switch permits nominal level shifting of 5V to 3.3V through the switch. Features O Space saving SOT23 or SC70 5-lead package O Ultra small MicroPak¥ Pb-Free leadless package O 5: switch connection between two ports O Designed to be used in level-shifting applications O Minimal propagation delay through the switch O Low ICC O Zero bounce in flow-through mode O Control inputs compatible with TTL level Ordering Code: Order Number Package Product Code Number Top Mark Package Description Supplied As NC7SZD384M5X MA05B 8Z4D 5-Lead SOT23, JEDEC MO-178, 1.6mm NC7SZD384P5X MAA05A Z4D 5-Lead SC70, EIAJ SC-88a, 1.25mm Wide 3k Units on Tape and Reel 3k Units on Tape and Reel NC7SZD384L6X MAC06A A4 Pb-Free 6-Lead MicroPak, 1.0mm Wide 5k Units on Tape and Reel Pb-Free package per JEDEC J-STD-020B. MicroPak¥ is a trademark of Fairchild Semiconductor Corporation. © 2005 Fairchild Semiconductor Corporation DS500016 www.fairchildsemi.com NC7SZD384 1-Bit Low Power Bus Switch with Level Shifting June 1997 NC7SZD384 Logic Symbol Connection Diagrams Pin Assignments for SC70 and SOT23 Pin Descriptions Pin Name Description OE Bus Switch Enable A Bus A B Bus B NC No Connect (Top View) Pad Assignments for MicroPak Function Table OE BO L AO Connect H HIGH-Z State Disconnect Function (Top Through View) www.fairchildsemi.com 2 0.5V to 7.0V 0.5V to 7.0V 0.5V to 7.0V 50 mA Supply Voltage (VCC) DC Switch Voltage (VS) DC Input Voltage (VIN) (Note 2) DC Input Diode Current (IIK) VIN 0V DC Output (IOUT) Sink Current Power Supply Operating (VCC) 128 mA DC VCC/GND Current (ICC/GND) Storage Temperature Range Recommended Operating Conditions (Note 3) (TSTG) Junction Temperature under bias (TJ) Power Dissipation (PD) @ 85qC SOT23-5 200 mW SC70-5 150 mW 0V to 5.5V Switch Control Input 0 ns/V to 5 ns Switch I/O 0 ns/V to DC 40qC to 85qC Operating Temperature (TA) Thermal Resistance (TJA) 260qC (Soldering, 10 seconds) 0V to 5.5V Output Voltage (VOUT) Input Rise and Fall Time (tr, tf) r100 mA 65qC to 150qC 150qC Junction Lead Temperature (TL) 4.5V to 5.5V Input Voltage (VIN) 300qC/Watt SOT23-5 425qC/Watt SC70-5 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: The input and output negative voltage ratings may be exceeded if the input and output diode current ratings are observed. Note 3: Unused inputs must be held HIGH or LOW. They may not float. DC Electrical Characteristics VCC Symbol Parameter (V) VIK Maximum Clamp Diode Voltage VIH HIGH Level Input Voltage 4.5–5.5 VIL LOW Level Input Voltage 4.5–5.5 VOH HIGH Level Output Voltage 4.5–5.5 II Input Leakage Current IOFF “OFF” Leakage Current 5.5 RON Switch On Resistance (Note 5) 4.5 ICC 40qC to 85qC Typ (Note 4) 4.5 Max Units 1.2 V 2.0 0.8 V r1.0 r10.0 PA PA : : : See Figure 3 0–5.5 5.5 Switch Off 5.5 Increase in ICC per Input (Note 6) 5.5 Conditions IIN 18 mA V V 5.0 7.0 5.0 7.0 35.0 50.0 Quiescent Supply Current Switch On 'ICC TA Min 0.8 0.8 1.5 mA VIN VCC 0 d VIN d 5.5V 0 d A, B, d VCC VIN 0V, II 64 mA VIN 0V, II 30 mA VIN 2.4V, II VIN VCC or GND, IO OE GND 10.0 PA OE VCC 2.5 mA OE 3.4V, IO 15 mA 0 0, Control Input only. Note 4: All typical values are at VCC 5.0V, TA 25qC. Note 5: Measured by the voltage drop between A and B pins at the indicated current through the switch. On Resistance is determined by the lower of the voltages on the two (A or B) pins. Note 6: Per TTL driven input (VIN 3.4V, control input only). A and B pins do not contribute to ICC. 3 www.fairchildsemi.com NC7SZD384 Absolute Maximum Ratings(Note 1) NC7SZD384 AC Electrical Characteristics TA Symbol Parameter tPHL, Propagation Delay Bus-to-Bus tPLH (Note 8) tPZL, Output Enable Time VCC CL (V) Min 40qC to 85qC 50 pF, RU RD Typ (Note 7) 4.5–5.5 4.5–5.5 1.5 500: Units Output Disable Time 4.5–5.5 1.0 0.25 ns VI OPEN Figures 1, 2 7.5 ns VI 7V for tPZL VI OPEN for tPZH Figures 1, 2 VI 7V for tPLZ VI OPEN for tPHZ 6.0 ns tPHZ Note 7: All typical values are VCC 5.0V, TA Figure Number tPZH tPLZ, Conditions Max Figures 1, 2 25qC. Note 8: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On Resistance of the switch and the 50 pF load capacitance, when driven by an ideal voltage source (zero output impedance). Capacitance (Note 9) Symbol Parameter CIN Control Pin Input Capacitance CI/O Input/Output Capacitance Note 9: TA 25qC f Typ Max Units 2 5 pF VCC 5.0V 4.5 10 pF VCC 5.0V 1MHz AC Loading and Waveforms FIGURE 1. AC Test Circuit Note: Input driven by 50: source terminated in 50:. CL includes load and stray capacitance. Input PRR 1.0 MHz tw 500 ns. FIGURE 2. AC Waveforms www.fairchildsemi.com 4 Conditions NC7SZD384 DC Characteristics FIGURE 3. Typical High Level Output Voltage vs. Supply Voltage 5 www.fairchildsemi.com NC7SZD384 Tape and Reel Specification TAPE FORMAT for SC70 and SOT23 Package Designator Tape Section Number Cavities Cavity Status Cover Tape Status Leader (Start End) 125 (typ) Empty Sealed Carrier 3000 Filled Sealed Trailer (Hub End) 75 (typ) Empty Sealed M5X, P5X TAPE DIMENSIONS inches (millimeters) Package SC70-5 SOT23-5 www.fairchildsemi.com Tape Size 8 mm 8 mm DIM A DIM B 0.093 0.096 (2.35) (2.45) 0.130 0.130 (3.3) (3.3) DIM F 0.053 r 0.004 0.138 r 0.002 0.055 r 0.004 (3.5 r 0.10) (3.5 r 0.05) 6 DIM Ko 0.138 r 0.004 (1.35 r 0.10) (1.4 r 0.11) DIM P1 0.157 (4) 0.157 (4) DIM W 0.315 r 0.004 (8 r 0.1) 0.315 r 0.012 (8 r 0.3) Package Designator Tape Section Number Cavities Cavity Status Leader (Start End) 125 (typ) Empty Sealed Carrier 5000 Filled Sealed Trailer (Hub End) 75 (typ) Empty Sealed L6X Cover Tape Status REEL DIMENSIONS inches (millimeters) Tape Size 8 mm A B C D N 7.0 0.059 0.512 0.795 2.165 (177.8) (1.50) (13.00) (20.20) (55.00) 7 W1 W2 (8.40 1.50/0.00) (14.40) 0.331 0.059/0.000 0.567 W3 W1 0.078/0.039 (W1 2.00/1.00) www.fairchildsemi.com NC7SZD384 TAPE FORMAT for MicroPak NC7SZD384 Physical Dimensions inches (millimeters) unless otherwise noted 5-Lead SOT23, JEDEC MO-178, 1.6mm Package Number MA05B www.fairchildsemi.com 8 NC7SZD384 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 5-Lead SC70, EIAJ SC-88a, 1.25mm Wide Package Number MAA05A 9 www.fairchildsemi.com NC7SZD384 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Pb-Free 6-Lead MicroPak, 1.0mm Wide Package Number MAC06A www.fairchildsemi.com 10 NC7SZD384 1-Bit Low Power Bus Switch with Level Shifting DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. 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 FAIRCHILD SEMICONDUCTOR CORPORATION As used herein: provided in the labeling, can be reasonably expected to result in significant injury to the user. 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or 2. A critical component is any component of a life support (b) support or sustain life, or (c) whose failure to perform device or system whose failure to perform can be reasonwhen properly used in accordance with instructions for use ably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. PRODUCT STATUS DEFINITIONS Definition of terms Datasheet Identification Product Status Definition Advance Information Formative or In Design This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. Preliminary First Production This datasheet contains preliminary data, and supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. No Identification Needed Full Production This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. Obsolete Not In Production This datasheet contains specifications on a product that has been discontinued by Fairchild Semiconductor. The datasheet is printed for reference information only. 11 www.fairchildsemi.com