74VHC14 HEX SCHMITT INVERTER ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ HIGH SPEED: tPD = 5.5ns (TYP.) at VCC = 5V LOW POWER DISSIPATION: ICC = 2 µA (MAX.) at TA=25°C TYPICAL HYSTERESIS: Vh = 1V at VCC = 4.5V POWER DOWN PROTECTION ON INPUTS SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 8 mA (MIN) BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL OPERATING VOLTAGE RANGE: VCC(OPR) = 2V to 5.5V PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 14 IMPROVED LATCH-UP IMMUNITY LOW NOISE: VOLP = 0.8V (MAX.) DESCRIPTION The 74VHC14 is an advanced high-speed CMOS HEX SCHMITT INVERTER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. The internal circuit is composed of 3 stages including buffer output, which enables high noise immunity and stable output. Power down protection is provided on all inputs and 0 to 7V can be accepted on inputs with no SOP TSSOP Table 1: Order Codes PACKAGE T&R SOP TSSOP 74VHC14MTR 74VHC14TTR regard to the supply voltage. This device can be used to interface 5V to 3V. Pin configuration and function are the same as those of the 74VHC04 but the 74VHC14 has hysteresis. 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. Figure 1: Pin Connection And IEC Logic Symbols November 2004 Rev. 6 1/11 74VHC14 Figure 2: Input Equivalent Circuit Table 2: Pin Description PIN N° SYMBOL 1, 3, 5, 9, 11, 13 2, 4, 6, 8, 10, 12 7 14 NAME AND FUNCTION 1A to 6A Data Inputs 1Y to 6Y Data Outputs GND VCC Ground (0V) Positive Supply Voltage Table 3: Truth Table A Y L H H L Table 4: Absolute Maximum Ratings Symbol Value Unit Supply Voltage -0.5 to +7.0 V VI DC Input Voltage -0.5 to +7.0 V VO DC Output Voltage IIK DC Input Diode Current -0.5 to VCC + 0.5 - 20 mA IOK DC Output Diode Current ± 20 mA IO DC Output Current ± 25 mA VCC Parameter ICC or IGND DC VCC or Ground Current Tstg Storage Temperature TL Lead Temperature (10 sec) V ± 50 mA -65 to +150 °C 300 °C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied Table 5: Recommended Operating Conditions Symbol VCC 2/11 Parameter Value Unit Supply Voltage 2 to 5.5 V VI Input Voltage 0 to 5.5 V VO Output Voltage Top Operating Temperature 0 to VCC V -55 to 125 °C 74VHC14 Table 6: DC Specifications Test Condition Symbol Vt+ Vt- Vh VOH VOL II ICC Parameter High Level Threshold Voltage Low Level Threshold Voltage Hysteresis Voltage High Level Output Voltage Low Level Output Voltage Input Leakage Current Quiescent Supply Current Value TA = 25°C VCC (V) Min. 3.0 4.5 5.5 3.0 4.5 5.5 3.0 4.5 5.5 Typ. Max. 2.2 3.15 3.85 -40 to 85°C -55 to 125°C Min. Min. Max. 2.2 3.15 3.85 0.9 1.35 1.65 1.2 1.4 1.6 0.3 0.4 0.5 0.3 0.4 0.5 Max. 2.2 3.15 3.85 0.9 1.35 1.65 1.2 1.4 1.6 0.3 0.4 0.5 Unit V 0.9 1.35 1.65 1.2 1.4 1.6 V V 2.0 IO=-50 µA 1.9 2.0 1.9 1.9 3.0 IO=-50 µA 2.9 3.0 2.9 2.9 4.5 IO=-50 µA 4.4 4.5 3.0 IO=-4 mA 2.58 4.5 IO=-8 mA 3.94 2.0 IO=50 µA 0.0 0.1 0.1 0.1 3.0 IO=50 µA 0.0 0.1 0.1 0.1 4.5 IO=50 µA 0.0 0.1 0.1 0.1 3.0 IO=4 mA 0.36 0.44 0.55 4.5 IO=8 mA 0.36 0.44 0.55 0 to 5.5 VI = 5.5V or GND ± 0.1 ±1 ±1 µA 5.5 VI = VCC or GND 2 20 20 µA 4.4 4.4 2.48 2.4 3.8 V 3.7 V Table 7: AC Electrical Characteristics (Input tr = tf = 3ns) Test Condition Symbol Parameter VCC (V) CL (pF) tPLH tPHL Propagation Delay Time 3.3(*) 3.3(*) (**) 5.0(**) 5.0 Value TA = 25°C Min. -40 to 85°C -55 to 125°C Typ. Max. Min. Max. Min. Max. 15 8.3 12.8 1.0 15.0 1.0 15.0 50 10.8 16.3 1.0 18.5 1.0 18.5 15 5.5 8.6 1.0 10.0 1.0 10.0 50 7.0 10.6 1.0 12.0 1.0 12.0 Unit ns (*) Voltage range is 3.3V ± 0.3V (**) Voltage range is 5.0V ± 0.5V 3/11 74VHC14 Table 8: Capacitive Characteristics Test Condition Symbol Value TA = 25°C Parameter Min. Typ. Max. 10 CIN Input Capacitance 6 CPD Power Dissipation Capacitance (note 1) 14 -40 to 85°C -55 to 125°C Min. Min. Max. 10 Unit Max. 10 pF pF 1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/6 (per gate) Table 9: Dynamic Switching Characteristics Test Condition Symbol VOLP VOLV VIHD VILD Parameter Dynamic Low Voltage Quiet Output (note 1, 2) Dynamic High Voltage Input (note 1, 3) Dynamic Low Voltage Input (note 1, 3) TA = 25°C VCC (V) Min. 5.0 5.0 Value -0.8 CL = 50 pF 5.0 Typ. Max. 0.3 0.8 -40 to 85°C -55 to 125°C Min. Min. Max. Unit Max. V -0.3 3.5 V 1.5 V 1) Worst case package. 2) Max number of outputs defined as (n). Data inputs are driven 0V to 5.0V, (n-1) outputs switching and one output at GND. 3) Max number of data inputs (n) switching. (n-1) switching 0V to 5.0V. Inputs under test switching: 5.0V to threshold (VILD), 0V to threshold (VIHD), f=1MHz. Figure 3: Test Circuit CL =15/50pF or equivalent (includes jig and probe capacitance) RT = ZOUT of pulse generator (typically 50Ω) 4/11 74VHC14 Figure 4: WAVEFORM: PROPAGATION DELAYS (f=1MHz; 50% duty cycle) 5/11 74VHC14 SO-14 MECHANICAL DATA DIM. mm. MIN. TYP inch MAX. MIN. TYP. MAX. A 1.35 1.75 0.053 0.069 A1 0.1 0.25 0.004 0.010 A2 1.10 1.65 0.043 0.065 B 0.33 0.51 0.013 0.020 C 0.19 0.25 0.007 0.010 D 8.55 8.75 0.337 0.344 E 3.8 4.0 0.150 0.157 e 1.27 0.050 H 5.8 6.2 0.228 0.244 h 0.25 0.50 0.010 0.020 L 0.4 1.27 0.016 0.050 k 0° 8° 0° 8° ddd 0.100 0.004 0016019D 6/11 74VHC14 TSSOP14 MECHANICAL DATA mm. inch DIM. MIN. TYP A MAX. MIN. TYP. MAX. 1.2 A1 0.05 A2 0.8 b 0.047 0.15 0.002 0.004 0.006 1.05 0.031 0.039 0.041 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.0089 D 4.9 5 5.1 0.193 0.197 0.201 E 6.2 6.4 6.6 0.244 0.252 0.260 E1 4.3 4.4 4.48 0.169 0.173 0.176 1 e 0.65 BSC K 0˚ L 0.45 A 0.60 0.0256 BSC 8˚ 0˚ 0.75 0.018 8˚ 0.024 0.030 A2 A1 b e K c L E D E1 PIN 1 IDENTIFICATION 1 0080337D 7/11 74VHC14 Tape & Reel SO-14 MECHANICAL DATA mm. inch DIM. MIN. A MAX. MIN. 330 13.2 TYP. MAX. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 8/11 TYP 0.504 22.4 0.519 0.882 Ao 6.4 6.6 0.252 0.260 Bo 9 9.2 0.354 0.362 Ko 2.1 2.3 0.082 0.090 Po 3.9 4.1 0.153 0.161 P 7.9 8.1 0.311 0.319 74VHC14 Tape & Reel TSSOP14 MECHANICAL DATA mm. inch DIM. MIN. A TYP MAX. MIN. 330 MAX. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 TYP. 0.504 22.4 0.519 0.882 Ao 6.7 6.9 0.264 0.272 Bo 5.3 5.5 0.209 0.217 Ko 1.6 1.8 0.063 0.071 Po 3.9 4.1 0.153 0.161 P 7.9 8.1 0.311 0.319 9/11 74VHC14 Table 10: Revision History Date Revision 12-Nov-2004 6 10/11 Description of Changes Order Codes Revision - pag. 1. 74VHC14 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. 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