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nexperia

74HCT240D Datasheet Preview

74HCT240D Datasheet

Octal buffer/line driver

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74HC240; 74HCT240
Octal buffer/line driver; 3-state; inverting
Rev. 5 — 15 July 2020
Product data sheet
1. General description
The 74HC240; 74HCT240 is an 8-bit inverting buffer/line driver with 3-state outputs. The device
can be used as two 4-bit buffers or one 8-bit buffer. The device features two output enables (1OE
and 2OE), each controlling four of the 3-state outputs. A HIGH on nOE causes the outputs to
assume a high-impedance OFF-state. Inputs include clamp diodes. This enables the use of current
limiting resistors to interface inputs to voltages in excess of VCC.
2. Features and benefits
Wide supply voltage range from 2.0 V to 6.0 V
CMOS low power dissipation
High noise immunity
Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
Complies with JEDEC standards:
JESD8C (2.7 V to 3.6 V)
JESD7A (2.0 V to 6.0 V)
Input levels:
For 74HC240: CMOS level
For 74HCT240: TTL level
Inverting 3-state outputs
ESD protection:
• • HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from -40 °C to +85 °C and from -40 °C to +125 °C
3. Ordering information
Table 1. Ordering information
Type number Package
Temperature range Name
74HC240D
-40 °C to +125 °C SO20
74HCT240D
74HC240DB
-40 °C to +125 °C SSOP20
74HCT240DB
74HC240PW -40 °C to +125 °C TSSOP20
74HCT240PW
74HC240BQ
-40 °C to +125 °C DHVQFN20
74HCT240BQ
Description
plastic small outline package; 20 leads;
body width 7.5 mm
plastic shrink small outline package; 20 leads;
body width 5.3 mm
plastic thin shrink small outline package; 20 leads;
body width 4.4 mm
plastic dual in-line compatible thermal enhanced
very thin quad flat package; no leads; 20 terminals;
body 2.5 × 4.5 × 0.85 mm
Version
SOT163-1
SOT339-1
SOT360-1
SOT764-1




nexperia

74HCT240D Datasheet Preview

74HCT240D Datasheet

Octal buffer/line driver

No Preview Available !

Nexperia
4. Functional diagram
74HC240; 74HCT240
Octal buffer/line driver; 3-state; inverting
2 1A0
17 2A0
4 1A1
15 2A1
6 1A2
13 2A2
8 1A3
11 2A3
1 1OE
19 2OE
Fig. 1. Logic symbol
1Y0 18
2Y0 3
1Y1 16
2Y1 5
1Y2 14
2Y2 7
1Y3 12
2Y3 9
mgu779
1
EN
2
18
4
16
6
14
8
12
19
EN
11
9
13
7
15
5
17
3
mgu778
Fig. 2. IEC logic symbol
2 1A0
1Y0 18
4 1A1
1Y1 16
6 1A2
1Y2 14
8 1A3
1 1OE
1Y3 12
17 2A0
2Y0 3
15 2A1
2Y1 5
13 2A2
2Y2 7
11 2A3
19 2OE
2Y3 9
mgu780
Fig. 3. Functional diagram
74HC_HCT240
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 15 July 2020
© Nexperia B.V. 2020. All rights reserved
2 / 15


Part Number 74HCT240D
Description Octal buffer/line driver
Maker nexperia
PDF Download

74HCT240D Datasheet PDF






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