TECHNICAL DATA Octal d-type latch (3-state) IN74VHCT373 is designed for using in up-to-date high performance computers, high-level electronic equipment for mass application. IN74VHCT373 is identical in pinout to the ICs IN74HC373A, IN74HCT373A, IN74AC373A, IN74ACT373A. Input voltage levels are compatible with standard TTLlevels. Output voltage levels are compatible with input levels of C-MOS, N-MOS and TTL ICs. IN74VHCT373 ORDERING INFORMATION IN74VHCT373N Plastic IN74VHCT373DW 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 Та = 25 °С. • Latchup current not less than 300 mA at Та = 85 °С. • 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 (ММ). • Ambient operation temperature minus 40 to plus 85 °С. • Balanced signal propagation delay. • Ensures voltage exceeding mode on input . 1 IN74VHCT373 IN74VHCT373 truth table Input Output OE LE D Q L H H H L H L L L L X Qo X Z H X Note – H - high voltage level; L - low voltage level; X - any voltage level (low or high); Qo - storage of the previous state; Z - output in the third state Pins description in IN74VHCT373 Pin No. Pinout OE 01 20 VCC Q0 02 19 Q7 D0 03 18 D7 D1 04 17 D6 Q1 05 16 Q6 Q2 06 15 Q5 D2 07 14 D5 D3 08 13 D4 Q3 09 12 Q4 GND 10 11 LE Symbol Description 01 OE 02 Q0 Data output 03 D0 Data input 04 D1 Data input 05 Q1 Data output 06 Q2 Data output 07 D2 Data input 08 D3 Data input 09 Q3 Data output 10 GND 11 LE Recording enable input 12 Q4 Data output 13 D4 Data input 14 D5 Data input 15 Q5 Data output 16 Q6 Data output 17 D6 Data input 18 D7 Data input 19 Q7 Data output 20 Vcc Input OUTPUT ENABLE Common output Supply output from voltage source 2 IN74VHCT373 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 Value min -0.5 -0.5 -0.5 -0.5 - max 7.0 7.0 VCC + 0.5B 7.0 -20 ±75 ±25 ±20 180 Iout Iok Pd *Under absolute maximum conditions operation of microcircuit is not guaranteed. Operation is guaranteed under maximum conditions Maximum conditions Parameter, unit Symbol Value min Supply voltage, V VCC 4.5 Input voltage,V Vin 0 Output voltage, V Vout 0 Output voltage, V Vout1 0 Output current, mA Iout Input rise and fall time, ns/V tLH, tHL 0 * - For ICs without third state on outputs – Vcc = 0V, for ICs with third state on outputs should be in third state max 5.5 VCC VCC 5.5* ±8.0 20 – outputs 3 IN74VHCT373 DC electrical characteristics Value Symbo l VIH VIL VOH VOL IOZ II IIH1 ICC ICCT Parameter 4.5 – VO ≤ 0.1 V or 5.5 VO ≥ VCC –0.1 Low input voltage 4.5 – VO ≤ 0.1 V or 5.5 VO ≥ VCC –0.1 High output voltage VI = VIH or VIL 4.5 IO = -50 mkA 5.5 VI = VIH or VIL; 4.5 IO = -8 mA Low output voltage VI = VIH or VIL 4.5 IO = 50 mkA 5.5 VI = VIH or VIL 4.5 IO = 8 mA 5.5 Output current in VI = 2.0V "off" state VO = VCC or 0V Input current VI = 0 V or VCC 5.5 High level input VI = 5.5V 0 current Consumption current VI =VCC or 0V 5.5 High input voltage TTL-input VI consumption current = 3.4 25 °C VCC, V Test conditions V 5.5 –40 to 85 °C min max 2.0 - min 2.0 max - – 0.8 – 0.8 4.42 5.42 – – 4.4 5.4 – – 3.94 – 3.80 – – – 0.09 0.09 – – 0.1 0.1 – 0.36 – 0.44 - ±0.25 - ±2.5 - ±0.1 ±0.1 - ±1.0 ±1.0 - 4.0 - 40.0 - 1.35 - 1.5 Unit V uA mA 4 IN74VHCT373 AC electrical characteristics (tLH = tHL = 3.0 ns, RL = 1 kOhm) Value Symbol Parameter Test conditions tPHL, tPLH Propagation delay time Fig 1 when switching «on», «off» from input LE to output Q tPHL, tPLH From input D to output Q Fig 1 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 tSU Time of setting signal D Fig 3 relativey to LE tH Retention time, D signal Fig 3 to LE tW Pulse duration of LE Fig 3 signal tOSLH, Propagation delays tOSHL difference between outputs – VCC, V CL, pF 25 °C –40 to 85 °C min max – 13.5 – 14.5 Unit 5.0 ± 0.5 15 50 min – – max 12.3 13.3 5.0 ± 0.5 15 50 5.0 ± 0.5 50 – – – 8.5 9.5 11.2 – – – 9.5 10.5 12.0 5.0 ± 0.5 15 50 – – 10.9 11.9 – – 12.5 13.5 ns 5.0 ± 0.5 15 50 5.0 ± 0.5 15 50 5.0 ± 0.5 15 50 5.5 ± 0.5 50 1.5 1.5 3.5 3.5 6.5 6.5 – – – – – – – 1.0 1.5 1.5 3.5 3.5 8.5 8.5 – – – – – – – 1.0 ns ns ns ns Capacitance characteristics Symbol CI CO CРD 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 50 Unit pF pF pF 5 IN74VHCT373 Noise characteristics (CL = 50 pF) Parameter Symbol VOLP VOLV VIHD VILD Unit Value VCC, V Positive noise of low output voltage 5.0 Negative noise of low output 5.0 voltage min -1.6 Input dynamic high voltage Input dynamic low voltage 2.0 5.0 5.0 max 1.6 - V 0.8 - - Time diagram of input and output pulses tLH tHL 0.9 Input 0.5 3.0 V 0.9 0.5 0.1 GND 0.1 tPHL tPLH VCC Output 1.5 V 1.5 V 0V Fig. 1 tHL Input tLH 3.0 V 0.9 0.9 0.5 0.5 0.1 0V 0.1 tPZH Output 0.9 VOH tPHZ 1.5 V 0V VCC tPLZ Output tPZL 1.5 V 0.1 VOL Fig.2 6 IN74VHCT373 Time diagram of input pulses 3.0 V Input D 0.5 0.5 tSU GND tH 3.0 V Input LE 0.5 0.5 tW GND Fig. 3 7 IN74VHCT373 N SUFFIX PLASTIC DIP (MS - 001AD) A Dimension, mm 11 20 B 1 10 Symbol MIN MAX A 24.89 26.92 B 6.1 7.11 5.33 C F L C -T- SEATING PLANE N D 0.36 0.56 F 1.14 1.78 G 2.54 H 7.62 J 0° 10° K 2.92 3.81 0.25 (0.010) M T L 7.62 8.26 1. Dimensions “A”, “B” do not include mold flash or protrusions. M 0.2 0.36 N 0.38 G K M D NOTES: J H Maximum mold flash or protrusions 0.25 mm (0.010) per side. D SUFFIX SOIC (MS - 013AC) A 20 11 H Dimension, mm B 1 P 10 G R x 45 C -TK D SEATING PLANE J 0.25 (0.010) M T C M F M Symbol MIN MAX A 12.6 13 B 7.4 7.6 C 2.35 2.65 D 0.33 0.51 F 0.4 1.27 G 1.27 H 9.53 J 0° 8° 1. Dimensions A and B do not include mold flash or protrusion. K 0.1 0.3 2. Maximum mold flash or protrusion 0.15 mm (0.006) per side M 0.23 0.32 P 10 10.65 R 0.25 0.75 NOTES: for A; for B ‑ 0.25 mm (0.010) per side. 8