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| TECHNICAL DATA Quad 3-State Noninverting Buffers IN74VHCT126 is high-speed logic IC made by CMOS technology and designed for use in high-performance calculating systems with a wide supply voltage range. As for operation speed, IN74VHCT126 can be compared with equivalent bipolar ICs based on Schottky TTL and two times surpasses ICs of IN74 series. IN74VHCT126 tolerates operation under conditions when voltage on input & output is exceeded up to 7V without affecting characteristics and IC reliability. This possibility allows to use IN74VHCT126 in radio-electronic devices for interfacing with supply voltages 5V and 3V, eliminate IC failure under supply voltage source emergency outage. Use of output edge shaping block in the microcircuit allows to reduce noise amplitude of noises when switching outputs into the same state simultaneously. Input levels of IN74VHCT126 are compatible with TTL level and output levels with CMOS levels. IN74VHCT126 ORDERING INFORMATION IN74VHCT126N Plastic IN74VHCT126D SOIC TA = -40 to 85 C for all packages Features: * * * * * * * * * * . Supply voltage range 4.5 to 5.5 V. Output current 8 mA. Low consumption current: 0.2 mkA (typical value) at = 25 . Latchup current not less than 300 mA at = 85 . Tolerable value of static potential not less than 2000 V as per human body model (HBM) and not less than 200 V as per machine model (). Ambient operation temperature minus 40 to plus 85 . Balanced signal propagation delay. Ensures voltage exceeding mode on input Low noise level at the simultaneous switching of outputs in the same state: VOLP = 0.8 V (max). For pins and functions, compatible with IN74HCT126. 1 IN74VHCT126 IN74VHCT126 truth table Input Output G L H H A X L H Y Z L H Note - H - high voltage level; L - low voltage level; X - any voltage level (low or high); Z - output in the third Pinout G1 01 14 13 12 11 10 09 08 VCC G4 A4 Y4 G3 A3 Y3 A1 02 Y1 03 G2 04 A2 05 Y2 06 GND 07 Pins description in IN74VHCT126 Pin No. 01 02 03 04 05 06 07 08 09 10 11 12 13 14 Symbol G1 A1 Y1 G2 A2 Y2 GND Y3 A3 G3 Y4 A4 G4 VCC Description Input ENABLE OUTPUT Input Output Input ENABLE OUTPUT Input Output Common output Output Input Input ENABLE OUTPUT Output Input Input ENABLE OUTPUT Supply output from voltage source 2 IN74VHCT126 Absolute maximum conditions* Parameter, unit Supply voltage, V Input voltage, V Output voltage, V Output voltage, V Input diode current, mA Current of common output and supply output, mA Output current, mA Output diode current, mA Dissipated power, mW Symbol VCC Vin Vout Vout1 Iik Icc Iout Iok Pd min -0.5 -0.5 -0.5 -0.5 Value max 7.0 7.0 VCC + 0.5B 7.0 -20 50 25 20 180 *Under absolute maximum conditions operation of microcircuit is not guaranteed. Operation is guaranteed under maximum conditions Maximum conditions Parameter, unit Symbol min 4.5 0 0 0 0 Value max 5.5 VCC VCC 5.5* 8.0 20 Supply voltage, V Input voltage,V Output voltage, V Output voltage, V Output current, mA Input rise and fall time, ns/V * Outputs in the third state VCC Vin Vout Vout1 Iout tLH, tHL 3 IN74VHCT126 DC electrical characteristics Value Symbol VIH VIL VOH Parameter High input voltage Low input voltage Test conditions VCC, V 4.5 - 5.5 4.5 - 5.5 4.5 5.5 4.5 4.5 5.5 4.5 5.5 5.5 0 5.5 5.5 25 C min 2.0 - 4.42 5.42 3.94 - - - max 0.8 - - - 0.09 0.09 0.36 0.25 0.1 0.1 4.0 1.35 -40 to 85 C min max 2.0 - 4.4 5.4 3.80 - - - 0.8 - - - 0.1 0.1 0.44 2.5 1.0 1.0 40.0 1.5 uA Unit V VOL IOZ II IIH1 ICC ICCT High output voltage VI = VIH or VIL IO = -50 mkA VI = VIH or VIL; IO = -8 mA Low output voltage VI = VIH or VIL IO = 50 mkA VI = VIH or VIL IO = 8 mA Output current in VI = 2.0V "off" state VO = VCC or 0V Input current VI = 0 V or VCC High level input VI = 5.5V current Consumption current VI =VCC or 0V TTL-input VI = 3.4 V consumption current - - uA mA 4 IN74VHCT126 AC electrical characteristics (tLH = tHL = 3.0 ns) Value Symbol Parameter Test conditions VCC, V CL, pF 25 C min - - - max 5.5 7.5 8.8 -40 to 85 C min max - 6.5 - 8.5 - 10.0 Unit ns ns tPHL, tPLH Propagation delay time Fig 1 when switching "on", "off" tPHZ , tPLZ Propagation delay time Fig 2 under transition from high , low level into "off" state tPZH , tPZL Propagation delay time Fig 2 under transition from off state into high, low level delays tOSLH, Propagation between tOSHL difference outputs 5.0 0.5 15 50 5.0 0.5 50 5.0 0.5 15 50 - - 5.1 7.1 - - 6.0 8.0 ns 5.0 0.5 50 - 1.0 - 1.0 ns Capacitance characteristics Symbol CI CO CD Parameter Input capacity Output capacity Dynamic capacity Test conditions VI = 0 V orVCC VCC, V 5.0 5.0 5.0 Value 25 C min max 10 12 30 Unit pF pF pF Noise characteristics (CL = 50 pF) Parameter Symbol VOLP VOLV VIHD VILD Positive noise of low output voltage Negative noise of low output voltage Input dynamic high voltage Input dynamic low voltage VCC, V 5.0 5.0 5.0 5.0 min -0.8 3.5 1.5 Value max 0.8 Unit V 5 IN74VHCT126 - Time diagram of input and output pulses tHL tLH G 0.1 tPZH Y tPHZ 1.5 V tPLZ Y tPZL 1.5 V 0.1 0.9 0.5 0.9 0.5 0.1 0.9 3.0 V 0V VOH 0 V VCC VOL Fig. 1 tLH 0.9 A 0.1 tPLH 0.5 0.5 tHL 0.9 3.0 V 0.1 tPHL GND VCC Y 1.5 V 1.5 V 0V Fig.2 6 IN74VHCT126 N SUFFIX PLASTIC DIP (MS - 001AA) A 14 8 B 1 7 Dimension, mm Symbol A B C MIN 18.67 6.1 MAX 19.69 7.11 5.33 0.36 1.14 2.54 7.62 0 2.92 7.62 0.2 0.38 10 3.81 8.26 0.36 0.56 1.78 F L D F C -T- SEATING N G D 0.25 (0.010) M T K PLANE G H H J M J K L M N NOTES: 1. Dimensions "A", "B" do not include mold flash or protrusions. Maximum mold flash or protrusions 0.25 mm (0.010) per side. D SUFFIX SOIC (MS - 012AB) Dimension, mm 8 A 14 Symbol A MIN 8.55 3.8 1.35 0.33 0.4 1.27 5.27 0 0.1 0.19 5.8 0.25 MAX 8.75 4 1.75 0.51 1.27 H B P B C 1 G 7 C R x 45 D F G -TD 0.25 (0.010) M T C M K SEATING PLANE H J F M J K M P R 8 0.25 0.25 6.2 0.5 NOTES: 1. Dimensions A and B do not include mold flash or protrusion. 2. Maximum mold flash or protrusion 0.15 mm (0.006) per side for A; for B 0.25 mm (0.010) per side. 7 |
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