Datasheet

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DATA SHEET

Product speciﬁcation

File under Integrated Circuits, IC06

December 1990

INTEGRATED CIRCUITS

74HC/HCT126

Quad buffer/line driver; 3-state

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

Summary of content (6 pages)

PAGE 1
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/HCT126 Quad buffer/line driver; 3-state Product specification File under Integrated Circuits, IC06 December 1990
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Philips Semiconductors Product specification Quad buffer/line driver; 3-state 74HC/HCT126 FEATURES • Output capability: bus driver • ICC category: MSI GENERAL DESCRIPTION The 74HC/HCT126 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The HC/HCT126 are four non-inverting buffer/line drivers with 3-state outputs. The 3-state outputs (nY) are controlled by the output enable input (nOE).
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Philips Semiconductors Product specification Quad buffer/line driver; 3-state 74HC/HCT126 PIN DESCRIPTION PIN NO. SYMBOL NAME AND FUNCTION 1, 4, 10, 13 1OE to 4OE output enable inputs (active HIGH) 2, 5, 9, 12 1A to 4A data inputs 3, 6, 8, 11 1Y to 4Y data outputs 7 GND ground (0 V) 14 VCC positive supply voltage (b) (a) Fig.1 Pin configuration. Fig.2 Logic symbol. Fig.3 IEC logic symbol. FUNCTION TABLE INPUTS OUTPUT nOE nA nY H H L L H X L H Z Note 1.
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Philips Semiconductors Product specification Quad buffer/line driver; 3-state 74HC/HCT126 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 −40 to +85 +25 min. tPHL/ tPLH tPZH/ tPZL tPHZ/ tPLZ tTHL/ tTLH propagation delay nA to nY typ. max. min. max. −40 to +125 min.
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Philips Semiconductors Product specification Quad buffer/line driver; 3-state 74HC/HCT126 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 unit, multiply this value by the unit load coefficient shown in the table below.
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Philips Semiconductors Product specification Quad buffer/line driver; 3-state 74HC/HCT126 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”.