INTEGRATED CIRCUITS DATA SHEET For a complete data sheet, please also download: • The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications • The IC06 74HC/HCT/HCU/HCMOS Logic Package Information • The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines 74HC/HCT368 Hex buffer/line driver; 3-state; inverting Product specification File under Integrated Circuits, IC06 December 1990
Philips Semiconductors Product specification Hex buffer/line driver; 3-state; inverting 74HC/HCT368 The 74HC/HCT368 are hex inverting buffer/line drivers with 3-state outputs. The 3-state outputs (nY) are controlled by the output enable inputs (1OE, 2OE). FEATURES • Inverting outputs • Output capability: bus driver A HIGH on nOE causes the outputs to assume a high impedance OFF-state. • ICC category: MSI The “368” is identical to the “367” but has inverting outputs.
Philips Semiconductors Product specification Hex buffer/line driver; 3-state; inverting 74HC/HCT368 PIN DESCRIPTION PIN NO. SYMBOL NAME AND FUNCTION 1, 15 1OE, 2OE output enable inputs (active LOW) 2, 4, 6, 10, 12, 14 1A to 6A data inputs 3, 5, 7, 9, 11, 13 1Y to 6Y data outputs 8 GND ground (0 V) 16 VCC positive supply voltage Fig.1 Pin configuration. December 1990 Fig.2 Logic symbol. 3 Fig.3 IEC logic symbol.
Philips Semiconductors Product specification Hex buffer/line driver; 3-state; inverting 74HC/HCT368 FUNCTION TABLE INPUTS OUTPUTS nOE nA nY L L H L H X H L Z Note 1. H = HIGH voltage level L = LOW voltage level X = don’t care Z = high impedance OFF-state Fig.4 Functional diagram. Fig.5 Logic diagram.
Philips Semiconductors Product specification Hex buffer/line driver; 3-state; inverting 74HC/HCT368 DC CHARACTERISTICS FOR 74HC For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”. Output capability: bus driver ICC category: MSI AC CHARACTERISTICS FOR 74HC GND = 0 V; tr = tf = 6 ns; CL = 50 pF Tamb (°C) TEST CONDITIONS 74HC SYMBOL PARAMETER +25 −40 to +85 −40 to +125 min. typ. max. min. max. min. UNIT V WAVEFORMS CC (V) max.
Philips Semiconductors Product specification Hex buffer/line driver; 3-state; inverting 74HC/HCT368 DC CHARACTERISTICS FOR 74HCT For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”. Output capability: bus driver ICC category: MSI Note to HCT types The value of additional quiescent supply current (∆ICC) for a unit load of 1 is given in the family specifications. To determine ∆ICC per input, multiply this value by the unit load coefficient shown in the table below.
Philips Semiconductors Product specification Hex buffer/line driver; 3-state; inverting 74HC/HCT368 AC WAVEFORMS (1) HC : VM = 50%; VI = GND to VCC. HCT : VM = 1.3 V; VI = GND to 3 V. Fig.6 Waveforms showing the input (nA) to output (nY) propagation delays and the output transition times. (1) HC : VM = 50%; VI = GND to VCC. HCT : VM = 1.3 V; VI = GND to 3 V. Fig.7 Waveforms showing the 3-state enable and disable times. PACKAGE OUTLINES See “74HC/HCT/HCU/HCMOS Logic Package Outlines”.