74ACT14 HEX SCHMITT INVERTER ■ ■ ■ ■ ■ ■ ■ ■ HIGH SPEED: tPD = 5 ns (TYP.) at VCC = 5V LOW POWER DISSIPATION: ICC = 4 µA (MAX.) at TA = 25 oC 50Ω TRANSMISSION LINE DRIVING CAPABILITY SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24 mA (MIN) BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 5V PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 14 IMPROVED LATCH-UP IMMUNITY DESCRIPTION The ACT14 is an advanced high-speed CMOS HEX SCHMITT INVERTER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ideal for low power applications mantaining high speed operation similar to equivalent Bipolar Shottky TTL. The internal circuit is composed of 3 stages including buffer output, which enables high noise B M (Plastic Package) (Micro Package) ORDER CODES : 74ACT14B 74ACT14M immunity and stable output. The device is designed to interface directly High Speed CMOS systems with TTL, NMOS and CMOS output voltage levels This together with its schmitt trigger function allows it to be used on line receivers with slow rise/fall input signals. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. PIN CONNECTION AND IEC LOGIC SYMBOLS March 1999 1/7 74ACT14 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No SYMBOL 1, 3, 5, 9, 11, 13 1A to 6A Data Inputs NAME AND FUNCT ION 2, 4, 6, 8, 10, 12 1Y to 6Y Data Outputs 7 GND Ground (0V) 14 VCC Positive Supply Voltage TRUTH TABLE A Y L H H L ABSOLUTE MAXIMUM RATINGS Symbol Parameter Unit -0.5 to +7 V VI DC Input Voltage -0.5 to VCC + 0.5 V VO DC Output Voltage -0.5 to VCC + 0.5 V IIK DC Input Diode Current ± 20 mA IOK DC Output Diode Current ± 20 mA IO DC Output Current ± 50 mA ± 300 mA VCC Supply Voltage Value ICC or IGND DC VCC or Ground Current Tstg Storage Temperature TL Lead Temperature (10 sec) -65 to +150 o 300 o C C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. RECOMMENDED OPERATING CONDITIONS Symbol VCC Valu e Unit 2 to 6 V V VI Input Voltage 0 to VCC VO Output Voltage 0 to VCC Top 2/7 Parameter Supply Voltage Operating Temperature: -40 to +85 V o C 74ACT14 DC SPECIFICATIONS Symb ol Vt+ VtVh VOH Parameter High Level Input Voltage Low Level Input Voltage Hysteresis Voltage High Level Output Voltage Test Co nditions Min. 2.0 2.0 5.5 2.0 2.0 Min. Max. V 0.6 5.5 0.6 0.6 4.5 0.4 1.4 0.4 1.4 5.5 0.4 1.5 0.4 1.5 4.5 5.5 4.5 5.5 5.5 (* ) VI = V IH or V IL V I (* ) = V IH or V IL IO=-50 µA 4.4 4.49 4.4 IO=-50 µA IO=-24 mA 5.4 5.49 5.4 3.86 3.76 IO=-24 mA 4.86 4.76 IO=50 µA 0.001 0.1 0.1 0.001 0.1 0.1 IO=24 mA 0.36 0.44 IO=24 mA 0.36 0.44 V V ±1 µA 1.5 mA 40 µA VOLD = 1.65 V max 75 mA VOHD = 3.85 V min -75 mA Input Leakage Current 5.5 VI = VCC or GND Max ICC /Input 5.5 VI = VCC -2.1 V ICC Quiescent Supply Current 5.5 VI = VCC or GND IOLD Dynamic Output Current (note 1, 2) 5.5 ±0.1 V V IO=50 mA ICCT IOHD Max. 0.6 4.5 II T yp. 4.5 5.5 Low Level Output Voltage Un it -40 to 85 o C 4.5 4.5 VOL Valu e T A = 25 oC V CC (V) 0.6 4 1) Maximum test duration 2ms, one output loaded attime 2) Incident wave switching is guaranteed on transmission lines with impedances as low as 50 Ω. (*) All outputs loaded. AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500 Ω, Input tr = tf =3 ns) Symb ol Parameter T est Con ditio n V CC (V) tPLH tPHL Propagation Delay Time 5.0(*) Valu e o o T A = 25 C -40 to 85 C Min. T yp. Max. Min. Max. 7.2 11.4 13.0 Un it ns (*) Voltage range is 5V ± 0.5V 3/7 74ACT14 CAPACITIVE CHARACTERISTICS Symb ol Parameter Test Co nditions V CC (V) Valu e T A = 25 oC Min. Un it -40 to 85 o C T yp. Max. C IN Input Capacitance 5.0 5 10 CPD Power Dissipation Capacitance (note 1) 5.0 30 Min. Max. 10 pF pF 1) CPD isdefined as the value of the IC’sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. (Referto Test Circuit).Average operating current can be obtained by the following equation. ICC(opr) = CPD • VCC • fIN + ICC/6 (per circuit) TEST CIRCUIT CL = 50 pF or equivalent (includes jigand probe capacitance) RL = R1 = 500Ω orequivalent RT = ZOUT of pulse generator (typically 50Ω) WAVEFORM: PROPAGATION DELAYS (f=1MHz) 4/7 74ACT14 Plastic DIP-14 MECHANICAL DATA mm DIM. MIN. a1 0.51 B 1.39 TYP. inch MAX. MIN. TYP. MAX. 0.020 1.65 0.055 0.065 b 0.5 0.020 b1 0.25 0.010 D 20 0.787 E 8.5 0.335 e 2.54 0.100 e3 15.24 0.600 F 7.1 0.280 I 5.1 0.201 L Z 3.3 1.27 0.130 2.54 0.050 0.100 P001A 5/7 74ACT14 SO-14 MECHANICAL DATA mm DIM. MIN. TYP. A a1 inch MAX. MIN. TYP. 1.75 0.1 0.068 0.2 a2 MAX. 0.003 0.007 1.65 0.064 b 0.35 0.46 0.013 0.018 b1 0.19 0.25 0.007 0.010 C 0.5 0.019 c1 45 (typ.) D 8.55 8.75 0.336 0.344 E 5.8 6.2 0.228 0.244 e 1.27 0.050 e3 7.62 0.300 F 3.8 4.0 0.149 0.157 G 4.6 5.3 0.181 0.208 L 0.5 1.27 0.019 0.050 M S 0.68 0.026 8 (max.) P013G 6/7 74ACT14 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. 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