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74HCT240D on a board, in 3D

74HCT240D

Nexperia

-40℃~+125℃ 1 160uA 4.5V~5.5V 6mA 6mA 74HCT 8 9ns@5V,15pF Output enable Tri-State SO-20-300mil Buffers, Drivers, Receivers, Transceivers ROHS

Extended
DatasheetJLCPCBLCSCnexperia/74HCT240D
Category
Buffer, Driver, Transceiver
Package
SO-20-300mil
Pins
20

Overview

The 74HCT240D is a buffer, Driver, Transceiver made by Nexperia in a SO-20-300mil package with 20 pins. -40℃~+125℃ 1 160uA 4.5V~5.5V 6mA 6mA 74HCT 8 9ns@5V,15pF Output enable Tri-State SO-20-300mil Buffers, Drivers, Receivers, Transceivers ROHS.

PCBKit's library has its KiCad symbol (74xx:74HCT240, from KiCad's library) and its footprint (Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C547476). 14 open-source boards in 12 repositories on GitHub use it.

Symbol

1OE11A022Y031A142Y151A262Y271A382Y39GND102A3111Y3122A2131Y2142A1151Y1162A0171Y0182OE19VCC20
74xx:74HCT240From KiCad's library

Footprint

1234567891011121314151617181920
Package_SO:SOIC-20W_7.5x12.8mm_P1.27mmFrom KiCad's library

From the datasheet

7
Supply, least
4.5 V · VCC, recommended operating min · p. 4
Supply, most
5.5 V · VCC, recommended operating max · p. 4
Supply, absolute maximum
7 V · VCC, absolute max · p. 4
Works from
-40 °C · Tamb, operating ambient min · p. 4
Works up to
125 °C · Tamb, operating ambient max · p. 4
Takes working
8 µA · VCC supply current max at 25 °C, VCC = 5.5 V, inputs at rails, IO = 0 A · p. 6
A pin gives at most
35 mA · IO source or sink absolute max, −0.5 V < VO < VCC + 0.5 V · p. 4

What it is and has

6
Function
8-bit inverting buffer/line driver with 3-state outputs · p. 1
Input levels
TTL · p. 1
Outputs
Inverting 3-state · p. 1
Compliance
JEDEC JESD7A · p. 1
ESD protection
HBM JESD22-A114F exceeds 2000 V · p. 1
ESD protection
MM JESD22-A115-A exceeds 200 V · p. 1

Specifications

47
ParameterConditionsAs printedPage
supply voltage VCCVoltages referenced to GNDmin -0.5 · max 7 V4
input clamping current IIKVI < −0.5 V or VI > VCC + 0.5 V; maximum magnitude ±20 mAmax 20 mA4
output clamping current IOKVO < −0.5 V or VO > VCC + 0.5 V; maximum magnitude ±20 mAmax 20 mA4
output current IO−0.5 V < VO < VCC + 0.5 V; maximum magnitude ±35 mAmax 35 mA4
supply current ICCmax 70 mA4
ground current IGNDmin -70 mA4
storage temperature Tstgmin -65 · max 150 C4
total power dissipation PtotSO20; above 70 °C, derates linearly with 8 mW/Kmax 500 mW4
supply voltage VCC74HCT240min 4.5 · typ 5 · max 5.5 V4
input voltage VI74HCT240; maximum VCCmin 0 V4
output voltage VO74HCT240; maximum VCCmin 0 V4
input transition rise and fall rate t/V74HCT240; VCC = 4.5 Vtyp 1.67 · max 139 ns/V4
ambient temperature Tamb74HCT240min -40 · typ 25 · max 125 C4
HIGH-level input voltage VIH74HCT240; VCC = 4.5 V to 5.5 V; 25 °Cmin 2 · typ 1.6 V5
HIGH-level input voltage VIH74HCT240; VCC = 4.5 V to 5.5 V; −40 °C to +85 °Cmin 2 V5
HIGH-level input voltage VIH74HCT240; VCC = 4.5 V to 5.5 V; −40 °C to +125 °Cmin 2 V5
LOW-level input voltage VIL74HCT240; VCC = 4.5 V to 5.5 V; 25 °Ctyp 1.2 · max 0.8 V5
LOW-level input voltage VIL74HCT240; VCC = 4.5 V to 5.5 V; −40 °C to +85 °Cmax 0.8 V5
LOW-level input voltage VIL74HCT240; VCC = 4.5 V to 5.5 V; −40 °C to +125 °Cmax 0.8 V5
HIGH-level output voltage VOH74HCT240; VI = VIH or VIL; VCC = 4.5 V; IO = −20 uA; 25 °Cmin 4.4 · typ 4.5 V5
HIGH-level output voltage VOH74HCT240; VI = VIH or VIL; VCC = 4.5 V; IO = −20 uA; −40 °C to +85 °Cmin 4.4 V5
HIGH-level output voltage VOH74HCT240; VI = VIH or VIL; VCC = 4.5 V; IO = −20 uA; −40 °C to +125 °Cmin 4.4 V5
HIGH-level output voltage VOH74HCT240; VI = VIH or VIL; VCC = 4.5 V; IO = −6 mA; 25 °Cmin 3.98 · typ 4.32 V5
HIGH-level output voltage VOH74HCT240; VI = VIH or VIL; VCC = 4.5 V; IO = −6 mA; −40 °C to +85 °Cmin 3.84 V5
HIGH-level output voltage VOH74HCT240; VI = VIH or VIL; VCC = 4.5 V; IO = −6 mA; −40 °C to +125 °Cmin 3.7 V5
LOW-level output voltage VOL74HCT240; VI = VIH or VIL; VCC = 4.5 V; IO = 20 uA; 25 °Ctyp 0 · max 0.1 V5
LOW-level output voltage VOL74HCT240; VI = VIH or VIL; VCC = 4.5 V; IO = 20 uA; −40 °C to +85 °Cmax 0.1 V5
LOW-level output voltage VOL74HCT240; VI = VIH or VIL; VCC = 4.5 V; IO = 20 uA; −40 °C to +125 °Cmax 0.1 V5
LOW-level output voltage VOL74HCT240; VI = VIH or VIL; VCC = 4.5 V; IO = 6.0 mA; 25 °Ctyp 0.16 · max 0.26 V5
LOW-level output voltage VOL74HCT240; VI = VIH or VIL; VCC = 4.5 V; IO = 6.0 mA; −40 °C to +85 °Cmax 0.33 V5
LOW-level output voltage VOL74HCT240; VI = VIH or VIL; VCC = 4.5 V; IO = 6.0 mA; −40 °C to +125 °Cmax 0.4 V5
input leakage current II74HCT240; VI = VCC or GND; VCC = 5.5 V; 25 °C; maximum magnitude ±0.1 uAmax 0.1 A6
input leakage current II74HCT240; VI = VCC or GND; VCC = 5.5 V; −40 °C to +85 °C; maximum magnitude ±1.0 uAmax 1 A6
input leakage current II74HCT240; VI = VCC or GND; VCC = 5.5 V; −40 °C to +125 °C; maximum magnitude ±1.0 uAmax 1 A6
OFF-state output current IOZ74HCT240; VI = VIH or VIL; VCC = 5.5 V; VO = VCC or GND; 25 °C; maximum magnitude ±0.5 uAmax 0.5 A6
OFF-state output current IOZ74HCT240; VI = VIH or VIL; VCC = 5.5 V; VO = VCC or GND; −40 °C to +85 °C; maximum magnitude ±5.0 uAmax 5 A6
OFF-state output current IOZ74HCT240; VI = VIH or VIL; VCC = 5.5 V; VO = VCC or GND; −40 °C to +125 °C; maximum magnitude ±10 uAmax 10 A6
supply current ICC74HCT240; VI = VCC or GND; VCC = 5.5 V; IO = 0 A; 25 °Cmax 8 A6
supply current ICC74HCT240; VI = VCC or GND; VCC = 5.5 V; IO = 0 A; −40 °C to +85 °Cmax 80 A6
supply current ICC74HCT240; VI = VCC or GND; VCC = 5.5 V; IO = 0 A; −40 °C to +125 °Cmax 160 A6
additional supply current ICC74HCT240; per nAn input pin; VI = VCC − 2.1 V; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; IO = 0 A; 25 °Ctyp 150 · max 540 A6
additional supply current ICC74HCT240; per nAn input pin; VI = VCC − 2.1 V; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; IO = 0 A; −40 °C to +85 °Cmax 675 A6
additional supply current ICC74HCT240; per nAn input pin; VI = VCC − 2.1 V; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; IO = 0 A; −40 °C to +125 °Cmax 735 A6
additional supply current ICC74HCT240; per nOE input pin; VI = VCC − 2.1 V; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; IO = 0 A; 25 °Ctyp 70 · max 252 A6
additional supply current ICC74HCT240; per nOE input pin; VI = VCC − 2.1 V; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; IO = 0 A; −40 °C to +85 °Cmax 315 A6
additional supply current ICC74HCT240; per nOE input pin; VI = VCC − 2.1 V; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; IO = 0 A; −40 °C to +125 °Cmax 343 A6
input capacitance CI74HCT240; 25 °Ctyp 3.5 pF6

Pins, by the datasheet

20
1 1OE
Output enable input, active LOW. · p. 3
2 1A0
Data input. · p. 3
3 2Y0
Bus output. · p. 3
4 1A1
Data input. · p. 3
5 2Y1
Bus output. · p. 3
6 1A2
Data input. · p. 3
7 2Y2
Bus output. · p. 3
8 1A3
Data input. · p. 3
9 2Y3
Bus output. · p. 3
10 GND
Ground (0 V). · p. 3
11 2A3
Data input. · p. 3
12 1Y3
Bus output. · p. 3
13 2A2
Data input. · p. 3
14 1Y2
Bus output. · p. 3
15 2A1
Data input. · p. 3
16 1Y1
Bus output. · p. 3
17 2A0
Data input. · p. 3
18 1Y0
Bus output. · p. 3
19 2OE
Output enable input, active LOW. · p. 3
20 VCC
Supply voltage. · p. 3

Ordering codes, by the datasheet

4
74HCT240D
SO20 · 20 leads; body width 7.5 mm; SOT163-1; −40 °C to +125 °C · p. 1
74HCT240DB
SSOP20 · 20 leads; body width 5.3 mm; SOT339-1; −40 °C to +125 °C · p. 1
74HCT240PW
TSSOP20 · 20 leads; body width 4.4 mm; SOT360-1; −40 °C to +125 °C · p. 1
74HCT240BQ
DHVQFN20 · 20 terminals; body 2.5 × 4.5 × 0.85 mm; SOT764-1; −40 °C to +125 °C · p. 1

Parameters

14
Current - Output High(IOH)
6mA
Current - Output Low(IOL)
6mA
Current - Supply
8uA
Features
Output enable
Logic Family
74HCT
Number of Bits per Element
8
Number of Elements
1
Operating Temperature
-40℃~+125℃
Output Current per Pin(Max)
35mA
Propagation Delay
9ns@5V,15pF
Quiescent Current
160uA
Voltage - Supply
4.5V~5.5V
Voltage - Supply(Absolute Max)
7V
output type
Tri-State

Order codes

2

Pinout

20
The pins of the 74HCT240D
PinNameType
11OEInput
21A0Input
32Y0Tri-state
41A1Input
52Y1Tri-state
61A2Input
72Y2Tri-state
81A3Input
92Y3Tri-state
10GNDPower in
112A3Input
121Y3Tri-state
132A2Input
141Y2Tri-state
152A1Input
161Y1Tri-state
172A0Input
181Y0Tri-state
192OEInput
20VCCPower in

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Questions

Is there a KiCad symbol and footprint for the 74HCT240D?

Yes. The symbol is 74xx:74HCT240 and the footprint Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the 74HCT240D?

SO-20-300mil, with 20 pins. Its footprint is drawn on this page.

Where is the 74HCT240D datasheet?

Nexperia publishes it: the Datasheet link on this page opens it.

Where can I order the 74HCT240D?

JLCPCB lists it as part C547476, with 0 in stock; the sellers' links on this page open their listings.

What can replace the 74HCT240D?

Parts like it in the library: the 74LVC245AD by Nexperia, the 74LVC244AD by Nexperia, the 74HC240D by Nexperia and the SN74AHC244DW by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the 74HCT240D?

14 boards in 12 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8