Revised March 1999 74VHCT08A Quad 2-Input AND Gate General Description The VHCT08A is an advanced high speed CMOS 2 Input AND Gate fabricated with silicon gate CMOS technology. It achieves the high-speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. The internal circuit is composed of 4 stages including buffer output, which provide high noise immunity and stable output. Protection circuits ensure that 0V to 7V can be applied to the input pins without regard to the supply voltage and to the output pins with VCC = 0V. These circuits prevent device destruction due to mismatched supply and input/ output voltages. This device can be used to interface 3V to 5V systems and two supply systems such as battery backup. Features ■ High speed: tPD = 5.0 ns (typ) at TA = 25°C ■ High noise immunity: VIH = 2.0V, VIL = 0.8V ■ Power down protection is provided on all inputs and outputs ■ Low noise: VOLP = 0.8V (max) ■ Low power dissipation: ICC = 2 µA (max) @ TA = 25°C ■ Pin and function compatible with 74HCT08 Ordering Code: Order Number Package Number 74VHCT08AM 74VHCT08ASJ 74VHCT08AMTC 74VHCT08AN M14A M14D MTC14 N14A Package Description 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering code Connection Diagram Logic Symbol IEEE/IEC Pin Descriptions Pin Names Truth Table Description A B O An, Bn Inputs L L L On Outputs L H L H L L H H H © 1999 Fairchild Semiconductor Corporation DS500025.prf www.fairchildsemi.com 74VHCT08A Quad 2-Input AND Gate July 1997 74VHCT08A Absolute Maximum Ratings(Note 1) Supply Voltage (VCC) −0.5V to +7.0V DC Input Voltage (VIN) −0.5V to +7.0V Recommended Operating Conditions (Note 5) DC Output Voltage (VOUT) (Note 2) −0.5V to VCC + 0.5V (Note 3) Supply Voltage (VCC) 4.5V to 5.5V Input Voltage (VIN) 0V to +5.5V Output Voltage (VOUT) −0.5V to 7.0V (Note 2) 0V to VCC Input Diode Current (IIK) −20 mA (Note 3) 0V to 5.5V Output Diode Current (IOK) (Note 4) ±20 mA Operating Temperature (TOPR) DC Output Current (IOUT) ±25 mA Input Rise and Fall Time (tr, tf) ±50 mA DC VCC/GND Current (ICC) VCC = 5.0V ± 0.5V −65°C to +150°C Storage Temperature (TSTG) 0 ns/V ∼ 20 ns/V Note 1: Absolute Maximum Ratings are values beyond which the device may be damaged or have its useful life impaired. The databook specifications should be met, without exception, to ensure that the system design is reliable over its power supply, temperature, and output/input loading variables. Fairchild does not recommend operation outside databook specifications. Lead Temperature (TL) (Soldering, 10 seconds) −40°C to +85°C 260°C Note 2: HIGH or LOW state. IOUT absolute maximum rating must be observed. Note 3: VCC = 0V. Note 4: VOUT < GND, VOUT > VCC (Outputs Active). Note 5: Unused inputs must be held HIGH or LOW. They may not float. DC Electrical Characteristics Symbol VIH VIL VOH VCC (V) Parameter TA = 25°C Min Typ TA = −40°C to +85°C Max Min HIGH Level 4.5 2.0 2.0 Input Voltage 5.5 2.0 2.0 Max 4.5 0.8 0.8 Input Voltage 5.5 0.8 0.8 HIGH Level 4.5 4.40 4.5 3.94 VOL LOW Level Output Voltage 4.5 IIN Input Leakage Current 4.50 Conditions V LOW Level Output Voltage Units V 4.40 V 3.80 V VIN = VIH or VIL IOH = −50 µA IOL = 50 µA IOH = −8 mA 4.5 0.36 0.44 V VIN = VIH or VIL 0 − 5.5 ±0.1 ±1.0 µA VIN = 5.5V or GND 5.5 2.0 20.0 µA VIN = VCC or GND 0.0 0.1 0.1 V IOL = 8 mA ICC Quiescent Supply Current ICCT Maximum ICC/ Input 5.5 1.35 1.50 mA V IN = 3.4V Other Inputs = V CC or GND IOFF Output Leakage Current 0.0 0.5 5.0 µA VOUT = 5.5V (Power Down State) Noise Characteristics Symbol Parameter TA = 25°C VCC (V) Typ Limit Units Conditions VOLP (Note 6) Quiet Output Maximum Dynamic VOL 5.0 0.4 0.8 V CL = 50 pF VOLV (Note 6) Quiet Output Minimum Dynamic VOL 5.0 −0.4 −0.8 V CL = 50 pF VIHD (Note 6) Minimum HIGH Level Dynamic Input Voltage 5.0 2.0 V CL = 50 pF VILD (Note 6) Maximum LOW Level Dynamic Input Voltage 5.0 0.8 V CL = 50 pF Note 6: Parameter guaranteed by design. www.fairchildsemi.com 2 Symbol tPLH Parameter Propagation Delay tPHL VCC (V) TA = 25°C Min TA = −40°C to +85°C Typ Max Min Max 5.0 5.0 6.9 1.0 8.0 ±0.5 1.0 9.0 5.5 7.9 CIN Input Capacitance 4 10 CPD Power Dissipation Capacitance 18 10 Units Conditions ns CL = 15 pF pF VCC = Open pF (Note 7) CL = 50 pF Note 7: CPD is defined as the value of the internal equivalent capacitance, which is calculated from the operating current consumption without load. Average operating current can be obtained from the equation: ICC (opr.) = CPD * VCC * fIN + ICC/4 (per gate) 3 www.fairchildsemi.com 74VHCT08A AC Electrical Characteristics 74VHCT08A Physical Dimensions inches (millimeters) unless otherwise noted 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow Package Number M14A 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M14D www.fairchildsemi.com 4 74VHCT08A Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Package Number MTC14 5 www.fairchildsemi.com 74VHCT08A Quad 2-Input AND Gate Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Package Number N14A 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.