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MC74HC240ADWR2G

Public Made by Adom

by adom

onsemi Buffers / Drivers, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MC74HC240ADWR2G

onsemi · Buffers / Drivers · SOIC-20-300mil

MC74HC240ADWR2G from onsemi, in a SOIC-20-300mil. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 ENABLE A input Active-low output enable for the YA outputs; low enables them as inverters, high puts them in high impedance.
2 A1 input Data input 1 of group A; appears inverted on YA1 when the outputs are enabled.
3 YB4 tri_state Inverting 3-state output of group B, high impedance when Enable B is high.
4 A2 input Data input 2 of group A; appears inverted on YA2 when the outputs are enabled.
5 YB3 tri_state Inverting 3-state output of group B, high impedance when Enable B is high.
6 A3 input Data input 3 of group A; appears inverted on YA3 when the outputs are enabled.
7 YB2 tri_state Inverting 3-state output of group B, high impedance when Enable B is high.
8 A4 input Data input 4 of group A; appears inverted on YA4 when the outputs are enabled.
9 YB1 tri_state Inverting 3-state output of group B, high impedance when Enable B is high.
10 GND power_in Ground (0 V reference) for the device.
11 B1 input Data input 1 of group B; appears inverted on YB1 when the outputs are enabled.
12 YA4 tri_state Inverting 3-state output of group A, high impedance when Enable A is high.
13 B2 input Data input 2 of group B; appears inverted on YB2 when the outputs are enabled.
14 YA3 tri_state Inverting 3-state output of group A, high impedance when Enable A is high.
15 B3 input Data input 3 of group B; appears inverted on YB3 when the outputs are enabled.
16 YA2 tri_state Inverting 3-state output of group A, high impedance when Enable A is high.
17 B4 input Data input 4 of group B; appears inverted on YB4 when the outputs are enabled.
18 YA1 tri_state Inverting 3-state output of group A, high impedance when Enable A is high.
19 ENABLE B input Active-low output enable for the YB outputs; low enables them as inverters, high puts them in high impedance.
20 VCC power_in Positive supply voltage, recommended operating range 2.0 to 6.0 V (absolute maximum 7.0 V).

Key specifications

Parameter Value
Manufacturer onsemi
Package SOIC-20-300mil
Category Logic ICs
Pins 20

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
DC Supply Voltage VCC -0.5 7 V Referenced to GND 2
DC Input Current per Pin Iin -20 20 mA 2
DC Output Current per Pin Iout -35 35 mA 2
DC Supply Current, VCC and GND Pins ICC -75 75 mA 2
Power Dissipation in Still Air, SOIC Package PD 500 mW SOIC package; derate -7 mW/C from 65 to 125C 2
Storage Temperature Tstg -65 150 C 2
Lead Temperature TL 260 C 1 mm from case for 10 seconds (SOIC or TSSOP) 2
DC Supply Voltage VCC 2 6 V Referenced to GND 2
DC Input Voltage, Output Voltage Vin, Vout 0 6 V 0 to VCC; max shown at VCC = 6.0 V 2
Operating Temperature, All Package Types TA -55 125 C 2
Input Rise and Fall Time tr, tf 0 1000 ns VCC = 2.0 V 2
Input Rise and Fall Time tr, tf 0 500 ns VCC = 4.5 V 2
Input Rise and Fall Time tr, tf 0 400 ns VCC = 6.0 V 2
Minimum High-Level Input Voltage VIH 1.5 V VCC = 2.0 V, Vout = VCC - 0.1 V, /Iout/ ≤ 20 µA; all temperatures 3
Minimum High-Level Input Voltage VIH 2.1 V VCC = 3.0 V, Vout = VCC - 0.1 V, /Iout/ ≤ 20 µA; all temperatures 3
Minimum High-Level Input Voltage VIH 3.15 V VCC = 4.5 V, Vout = VCC - 0.1 V, /Iout/ ≤ 20 µA; all temperatures 3
Minimum High-Level Input Voltage VIH 4.2 V VCC = 6.0 V, Vout = VCC - 0.1 V, /Iout/ ≤ 20 µA; all temperatures 3
Maximum Low-Level Input Voltage VIL 0.5 V VCC = 2.0 V, Vout = 0.1 V, /Iout/ ≤ 20 µA; all temperatures 3
Maximum Low-Level Input Voltage VIL 0.9 V VCC = 3.0 V, Vout = 0.1 V, /Iout/ ≤ 20 µA; all temperatures 3
Maximum Low-Level Input Voltage VIL 1.35 V VCC = 4.5 V, Vout = 0.1 V, /Iout/ ≤ 20 µA; all temperatures 3
Maximum Low-Level Input Voltage VIL 1.8 V VCC = 6.0 V, Vout = 0.1 V, /Iout/ ≤ 20 µA; all temperatures 3
Minimum High-Level Output Voltage VOH 1.9 V VCC = 2.0 V, Vin = VIH, /Iout/ ≤ 20 µA; all temperatures 3
Minimum High-Level Output Voltage VOH 4.4 V VCC = 4.5 V, Vin = VIH, /Iout/ ≤ 20 µA; all temperatures 3
Minimum High-Level Output Voltage VOH 5.9 V VCC = 6.0 V, Vin = VIH, /Iout/ ≤ 20 µA; all temperatures 3
Minimum High-Level Output Voltage VOH 2.48 V VCC = 3.0 V, Vin = VIH, /Iout/ ≤ 2.4 mA; -55 to 25C 3
Minimum High-Level Output Voltage VOH 2.34 V VCC = 3.0 V, Vin = VIH, /Iout/ ≤ 2.4 mA; ≤85C 3
Minimum High-Level Output Voltage VOH 2.2 V VCC = 3.0 V, Vin = VIH, /Iout/ ≤ 2.4 mA; ≤125C 3
Minimum High-Level Output Voltage VOH 3.98 V VCC = 4.5 V, Vin = VIH, /Iout/ ≤ 6.0 mA; -55 to 25C 3
Minimum High-Level Output Voltage VOH 3.84 V VCC = 4.5 V, Vin = VIH, /Iout/ ≤ 6.0 mA; ≤85C 3
Minimum High-Level Output Voltage VOH 3.7 V VCC = 4.5 V, Vin = VIH, /Iout/ ≤ 6.0 mA; ≤125C 3
Minimum High-Level Output Voltage VOH 5.48 V VCC = 6.0 V, Vin = VIH, /Iout/ ≤ 7.8 mA; -55 to 25C 3
Minimum High-Level Output Voltage VOH 5.34 V VCC = 6.0 V, Vin = VIH, /Iout/ ≤ 7.8 mA; ≤85C 3
Minimum High-Level Output Voltage VOH 5.2 V VCC = 6.0 V, Vin = VIH, /Iout/ ≤ 7.8 mA; ≤125C 3
Maximum Low-Level Output Voltage VOL 0.1 V VCC = 2.0 V, Vin = VIL, /Iout/ ≤ 20 µA; all temperatures 3
Maximum Low-Level Output Voltage VOL 0.26 V VCC = 3.0 V, Vin = VIL, /Iout/ ≤ 2.4 mA; -55 to 25C 3
Maximum Low-Level Output Voltage VOL 0.33 V VCC = 3.0 V, Vin = VIL, /Iout/ ≤ 2.4 mA; ≤85C 3
Maximum Low-Level Output Voltage VOL 0.4 V VCC = 3.0 V, Vin = VIL, /Iout/ ≤ 2.4 mA; ≤125C 3
Maximum Input Leakage Current Iin -0.1 0.1 µA VCC = 6.0 V, Vin = VCC or GND; -55 to 25C 3
Maximum Input Leakage Current Iin -1 1 µA VCC = 6.0 V, Vin = VCC or GND; ≤85C 3
Maximum Three-State Leakage Current IOZ -0.5 0.5 µA VCC = 6.0 V, output in high-impedance state, Vin = VIL or VIH, Vout = VCC or GND; -55 to 25C 3
Maximum Three-State Leakage Current IOZ -5 5 µA VCC = 6.0 V, output in high-impedance state, Vin = VIL or VIH, Vout = VCC or GND; ≤85C 3
Maximum Three-State Leakage Current IOZ -10 10 µA VCC = 6.0 V, output in high-impedance state, Vin = VIL or VIH, Vout = VCC or GND; ≤125C 3
Maximum Quiescent Supply Current (per Package) ICC 4 µA VCC = 6.0 V, Vin = VCC or GND, Iout = 0 µA; -55 to 25C 3
Maximum Quiescent Supply Current (per Package) ICC 40 µA VCC = 6.0 V, Vin = VCC or GND, Iout = 0 µA; ≤85C 3
Maximum Quiescent Supply Current (per Package) ICC 160 µA VCC = 6.0 V, Vin = VCC or GND, Iout = 0 µA; ≤125C 3
Maximum Input Capacitance Cin 10 pF all temperatures 3
Maximum Three-State Output Capacitance Cout 15 pF Output in high-impedance state; all temperatures 3
Power Dissipation Capacitance (Per Transceiver Channel) CPD 32 pF Typical @ 25°C, VCC = 5.0 V 3

CAD (KiCad official)

  • Symbol: MC74HC240ADWR2G
  • Footprint: Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm
  • 3D model: SOIC-20-300mil (KiCad packages3D, STEP)
  • 3D model files: mc74hc240adwr2g-etched.step / mc74hc240adwr2g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mc74hc240adwr2g.step / mc74hc240adwr2g.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: onsemi datasheet (8 pp, sha256 00c1a4065eb3b90d, retrieved 2026-10-26, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF