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Part: 74AHCT126PW
Category:
Logic
-> Buffers/Drivers
Description: 74AHC126; 74AHCT126; Quad Buffer/line Driver; 3-state;; Package: SOT108-1 (SO14), SOT402-1 (TSSOP14)
Company: Philips Semiconductors
Datasheet: Download 74AHCT126PW datasheet File size : 67 kB
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INTEGRATED CIRCUITS
DATA SHEET
74AHC126; 74AHCT126 Quad buffer/line driver; 3-state
Product specification Supersedes data of 1999 Jan 12 File under Integrated Circuits, IC06 1999 Sep 29
Philips Semiconductors
Product specification
Quad buffer/line driver; 3-state
FEATURES · ESD protection: HBM EIA/JESD22-A114-A exceeds 2000 V MM EIA/JESD22-A115-A exceeds 200 V CDM EIA/JESD22-C101 exceeds 1 000 V · Balanced propagation delays · All inputs have Schmitt-trigger actions · Inputs accepts voltages higher than VCC · For AHC only: operates with CMOS input levels · For AHCT only: operates with TTL input levels · Specified from -40 to +85 and +125 °C. DESCRIPTION The 74AHC/AHCT126 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 74AHC/AHCT126 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 LOW at nOE causes the outputs to assume a HIGH-impedance OFF state. The `126' is identical to the `125' but has active HIGH enable inputs. Note 1. H = HIGH voltage level; L = LOW voltage level; X = don't care; Z = high-impedance OFF state. FUNCTION TABLE See note 1. INPUTS nOE H H L
74AHC126; 74AHCT126
OUTPUT nA L H X nY L H Z
QUICK REFERENCE DATA GND = 0 V; Tamb = 25 °C; tr = tf 3.0 ns. TYPICAL SYMBOL tPHL/tPLH CI CO CPD PARAMETER propagation delay nA to nY input capacitance output capacitance power dissipation capacitance CL = 50 pF; f = 1 MHz; notes 1 and 2 CONDITIONS AHC CL = 15 pF; VCC = 5 V VI = VCC or GND 3.3 3.0 4.0 10 AHCT 3.0 3.0 4.0 12 ns pF pF pF UNIT
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 × VCC2 × fo) = sum of outputs; CL = output load capacitance in pF; VCC = supply voltage in Volts. 2. The condition is VI = GND to VCC. PINNING PIN 1, 4, 10 and 13 2, 5, 9 and 12 3, 6, 8 and 11 7 14 SYMBOL 1OE to 4OE 1A to 4A 1Y to 4Y GND VCC 2 DESCRIPTION output enable inputs (active HIGH) data inputs data outputs ground (0 V) DC supply voltage
1999 Sep 29
Philips Semiconductors
Product specification
Quad buffer/line driver; 3-state
ORDERING INFORMATION OUTSIDE NORTH AMERICA 74AHC126D 74AHC126PW 74AHCT126D 74AHCT126PW
74AHC126; 74AHCT126
PACKAGES NORTH AMERICA PINS 74AHC126D 74AHC126PW DH 74AHCT126D 7AHCT126PW DH 14 14 14 14 PACKAGE SO TSSOP SO TSSOP MATERIAL plastic plastic plastic plastic CODE SOT108-1 SOT402-1 SOT108-1 SOT402-1
1OE 1A 1Y 2OE 2A 2Y GND
1 2 3 4 5 6 7
MNA233
14 VCC 13 4OE 12 4A
handbook, halfpage
126
11 4Y 10 3OE
nA
nY
nOE
9
3A
MNA234
8 3Y
Fig.1 Pin configuration.
Fig.2 Logic diagram.
handbook, halfpage
2 1 5 4 9 10 12 13
1A 1OE
1Y
3
handbook, halfpage
2 1 EN1
1
3
2A 2OE 3A 3OE 4A 4OE
2Y
6 5
6 4 3Y 8 9 8 10 4Y 11 12 11 13
MNA235 MNA236
Fig.3 Functional diagram.
Fig.4 IEC logic symbol.
1999 Sep 29
3
Philips Semiconductors
Product specification
Quad buffer/line driver; 3-state
RECOMMENDED OPERATING CONDITIONS
74AHC126; 74AHCT126
74AHC SYMBOL VCC VI VO Tamb PARAMETER DC supply voltage input voltage output voltage operating ambient temperature range see DC and AC characteristics per device VCC = 5 V ±0.5 V CONDITIONS MIN. 2.0 0 0 -40 -40 TYP. MAX. MIN. 5.0 - - +25 +25 - - 5.5 5.5 VCC +85 4.5 0 0 -40
74AHCT UNIT TYP. MAX. 5.0 - - +25 +25 - - 5.5 5.5 VCC +85 V V V °C
+125 -40 100 20 - -
+125 °C - 20 ns/V
tr,tf (t/f) input rise and fall rates
VCC = 3.3 V ±0.3 V - -
LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134); voltages are referenced to GND (ground = 0 V). SYMBOL VCC VI IIK IOK IO ICC Tstg PD Notes 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. For SO packages: above 70 °C the value of PD derates linearly with 8 mW/K. For TSSOP packages: above 60 °C the value of PD derates linearly with 5.5 mW/K. PARAMETER DC supply voltage input voltage range DC input diode current DC output diode current DC VCC or GND current storage temperature range power dissipation per package for temperature range: -40 to +125 °C; note 2 VI VCC + 0.5 V; note 1 CONDITIONS MIN. MAX. UNIT -0.5 -0.5 - - - - -65 - +7.0 +7.0 -20 ±20 ±25 ±75 500 V V mA mA mA mA mW
DC output source or sink current -0.5 V < VO < VCC + 0.5 V
+150 °C
1999 Sep 29
4
Philips Semiconductors
Product specification
Quad buffer/line driver; 3-state
DC CHARACTERISTICS
74AHC126; 74AHCT126
74AHC family Over recommended operating conditions; voltages are referenced to GND (ground = 0 V). TEST CONDITIONS SYMBOL PARAMETER OTHER VIH HIGH-level input voltage VCC (V) 2.0 3.0 5.5 VIL LOW-level input voltage 2.0 3.0 5.5 VOH HIGH-level output voltage; all outputs HIGH-level output voltage VI = VIH or VIL; IO = -50 µA VI = VIH or VIL; IO = -4.0 mA VI = VIH or VIL; IO = -8.0 mA VOL LOW-level output voltage; all outputs LOW-level output voltage VI = VIH or VIL; IO = 50 µA VI = VIH or VIL; IO = 4 mA VI = VIH or VIL; IO = 8 mA II IOZ ICC CI input leakage current 3-state output OFF current quiescent supply current input capacitance VI = VCC or GND 2.0 3.0 4.5 3.0 4.5 2.0 3.0 4.5 3.0 4.5 5.5 MIN. 1.5 2.1 - - - 1.9 2.9 4.4 - - - - - 2.0 3.0 4.5 25 TYP. - - - 0.5 0.9 1.65 - - - - - 0.1 0.1 0.1 0.36 0.36 0.1 Tamb (°C) -40 to +85 - - 0.5 0.9 1.65 - - - -40 to +125 UNIT - - 0.5 0.9 1.65 - - - V V V
MAX. MIN. MAX. MIN. MAX. 1.5 2.1 - - - 1.9 2.9 4.4 1.5 2.1 - - - 1.9 2.9 4.4 V
3.85 -
3.85 -
3.85 -
2.58 - 3.94 - - - - - - - - - - 0 0 0 - - - - - 3
2.48 - 3.8 - - - - - - - 0.1 0.1 0.1 0.44 0.44 1.0 ±2.5 20 10
2.40 - 3.70 - - - - - - - - - - 0.1 0.1 0.1 0.55 0.55 2.0
V
V
µA
VI = VIH or VIL; 5.5 VO = VCC or GND VI = VCC or GND; IO = 0 5.5 -
±0.25 - 2.0 10 - -
±10.0 µA 40 10 µA pF
1999 Sep 29
5
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