74VHCT08A QUAD 2-INPUT AND GATE HIGH SPEED: t = 4.7 ns (TYP.) at V = 5V PD CC LOW POWER DISSIPATION: I = 2 A (MAX.) at T =25C CC A COMPATIBLE WITH TTL OUTPUTS: V = 2V (MIN.), V = 0.8V (MAX) IH IL POWER DOWN PROTECTION ON INPUTS SOP TSSOP & OUTPUTS SYMMETRICAL OUTPUT IMPEDANCE: I = I = 8 mA (MIN) OH OL Table 1: Order Codes BALANCED PROPAGATION DELAYS: t t PLH PHL PACKAGE T & R OPERATING VOLTAGE RANGE: SOP 74VHCT08AMTR V (OPR) = 4.5V to 5.5V CC TSSOP 74VHCT08ATTR PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 08 IMPROVED LATCH-UP IMMUNITY Power down protection is provided on all inputs LOW NOISE: V = 0.8V (MAX.) and outputs and 0 to 7V can be accepted on OLP inputs with no regard to the supply voltage. This device can be used to interface 5V to 3V since all DESCRIPTION inputs are equipped with TTL threshold. The 74VHCT08A is an advanced high-speed All inputs and outputs are equipped with CMOS QUAD 2-INPUT AND GATE fabricated protection circuits against static discharge, giving with sub-micron silicon gate and double-layer 2 them 2KV ESD immunity and transient excess metal wiring C MOS technology. voltage. The internal circuit is composed of 2 stages including buffer output, which provides high noise immunity and stable output. Figure 1: Pin Connection And IEC Logic Symbols Rev. 4 December 2004 1/11 Obsolete Product(s) - Obsolete Product(s)74VHCT08A Figure 2: Input Equivalent Circuit Table 2: Pin Description PIN N SYMBOL NAME AND FUNCTION 1, 4, 9, 12 1A to 4A Data Inputs 2, 5, 10, 13 1B to 4B Data Inputs 3, 6, 8, 11 1Y to 4Y Data Outputs 7 GND Ground (0V) 14 V Positive Supply Voltage CC Table 3: Truth Table AB Y LLL LHL HL L HHH Table 4: Absolute Maximum Ratings Symbol Parameter Value Unit V Supply Voltage -0.5 to +7.0 V CC V DC Input Voltage -0.5 to +7.0 V I V DC Output Voltage (see note 1) -0.5 to +7.0 V O V DC Output Voltage (see note 2) -0.5 to V + 0.5 V O CC I DC Input Diode Current - 20 mA IK I DC Output Diode Current 20 mA OK I DC Output Current 25 mA O I or I DC V or Ground Current 50 mA CC GND CC T Storage Temperature -65 to +150 C stg T Lead Temperature (10 sec) 300 C L Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied 1) V = 0V CC 2) High or Low State Table 5: Recommended Operating Conditions Symbol Parameter Value Unit V Supply Voltage 4.5 to 5.5 V CC V Input Voltage 0 to 5.5 V I V Output Voltage (see note 1) 0 to 5.5 V O V Output Voltage (see note 2) 0 to V V O CC T Operating Temperature -55 to 125 C op Input Rise and Fall Time (see note 3) (V = 5.0 0.5V) dt/dv 0 to 20 ns/V CC 1) V = 0V CC 2) High or Low State 3) V from 0.8V to 2V IN 2/11 Obsolete Product(s) - Obsolete Product(s)