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Part: 74HC125D
Category:
Logic
-> Buffers/Drivers
Description: 74HC/HCT125; Quad Buffer/line Driver; 3-state;; Package: SOT108-1 (SO14), SOT27-1 (DIP14), SOT337-1 (SSOP14), SOT402-1 (TSSOP14)
Company: Philips Semiconductors
Datasheet: Download 74HC125D datasheet File size : 156 kB
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Datasheet text preview:
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/HCT125 Quad buffer/line driver; 3-state
Product specification File under Integrated Circuits, IC06 December 1990
Philips Semiconductors
Product specification
Quad buffer/line driver; 3-state
FEATURES · Output capability: bus driver · ICC category: MSI GENERAL DESCRIPTION
74HC/HCT125
The 74HC/HCT125 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 74HC/HCT125 are four non-inverting buffer/line drivers with 3-state outputs. The 3-state outputs (nY) are controlled by the output enable input (nOE). A HIGH at nOE causes the outputs to assume a HIGH impedance OFF-state. The "125" is identical to the "126" but has active LOW enable inputs. QUICK REFERENCE DATA GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns TYPICAL SYMBOL tPHL/ tPLH CI CPD Notes 1. CPD is used to determine the dynamic power dissipation (PD in µW): PD = CPD × VCC2 × fi + (CL × VCC2 × fo) where: fi = input frequency in MHz fo = output frequency in MHz CL = output load capacitance in pF VCC = supply voltage in V (CL × VCC2 × fo) = sum of outputs 2. For HC the condition is VI = GND to VCC For HCT the condition is VI = GND to VCC - 1.5 V ORDERING INFORMATION See "74HC/HCT/HCU/HCMOS Logic Package Information". PARAMETER propagation delay nA to nY input capacitance power dissipation capacitance per buffer notes 1 and 2 CONDITIONS HC CL = 15 pF; VCC = 5 V 9 3.5 22 12 3.5 24 HCT ns pF pF UNIT
December 1990
2
Philips Semiconductors
Product specification
Quad buffer/line driver; 3-state
PIN DESCRIPTION PIN NO. 1, 4, 10, 13 2, 5, 9, 12 3, 6, 8, 11 7 14 SYMBOL 1OE to 4OE 1A to 4A 1Y to 4Y GND VCC NAME AND FUNCTION outputs enable inputs (active LOW) data inputs data outputs ground (0 V) positive supply voltage
74HC/HCT125
(a)
(b)
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
FUNCTION TABLE INPUTS nOE L L H Note 1. H = HIGH voltage level L = LOW voltage level X = don't care Z = high impedance OFF-state nA L H X OUTPUT nY L H Z
Fig.4 Functional diagram.
Fig.5 Logic diagram (one buffer).
December 1990
3
Philips Semiconductors
Product specification
Quad buffer/line driver; 3-state
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) 74HC SYMBOL PARAMETER +25 -40 to +85 -40 to +125 max. 150 30 26 190 38 32 190 38 32 90 18 15 ns ns ns ns
74HC/HCT125
TEST CONDITIONS UNIT V CC (V) 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 Fig.6 Fig.7 Fig.7 WAVEFORMS
min. typ. max. min. max. min. tPHL/ tPLH propagation delay nA to nY 30 11 9 tPZH/ tPZL 3-state output enable time nOE to nY 41 15 12 tPHZ/ tPLZ 3-state output disable time nOE to nY 41 15 12 tTHL/ tTLH output transition time 14 5 4 100 20 17 125 25 21 125 25 21 60 12 10 125 25 21 155 31 26 155 31 26 75 15 13
Fig.6
December 1990
4
Philips Semiconductors
Product specification
Quad buffer/line driver; 3-state
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
74HC/HCT125
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.
INPUT nA, nOE
UNIT LOAD COEFFICIENT 1.00
AC CHARACTERISTICS FOR 74HCT GND = 0 V; tr = tf = 6 ns; CL = 50 pF Tamb (°C) 74HCT SYMBOL PARAMETER +25 -40 to +85 -40 to +125 max. 38 42 38 18 ns ns ns ns 4.5 4.5 4.5 4.5 Fig.6 Fig.7 Fig.7 Fig.6 UNIT V CC (V) WAVEFORMS TEST CONDITIONS
min. typ. max. min. max. min. tPHL/ tPLH tPZH/ tPZL tPHZ/ tPLZ tTHL/ tTLH propagation delay nA to nY 3-state output enable time nOE to nY 3-state output disable time nOE to nY output transition time 15 15 15 5 25 28 25 12 31 35 31 15
December 1990
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Others parts begin by 74
74-1 74-2 74-3 74-4 74-5 74-6 74-7 74-8 74-9 74-10 74-11 74-12 74-13 74-14 74-15 74-16 74-17 74-18 74-19 74-20 74-21 74-22 74-23 74-24 74-25 74-26 74-27 74-28 74-29 74-30 74-31 74-32 74-33 74-34 74-35 74-36 74-37 74-38 74-39 74-40 74-41 74-42 74-43 74-44 74-45 74-46 74-47 74-48 74-49 74-50 74-51 74-52 74-53 74-54 74-55 74-56 74-57 74-58 74-59 74-60 74-61 74-62
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