74HC7540 查看數據表（PDF） - Nexperia B.V. All rights reserved
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74HC7540
Nexperia B.V. All rights reserved
74HC7540 Datasheet PDF : 15 Pages
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74HC7540; 74HCT7540
Octal Schmitt trigger buffer/line driver; 3-state; inverting
Rev. 5 — 26 May 2016
Product data sheet
1. General description
The 74HC7540; 74HCT7540 is an 8-bit inverting buffer/line driver with Schmitt-trigger
inputs and 3-state outputs. The device features two output enables (OE1 and OE2). A
HIGH on OEn 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. Schmitt trigger inputs transform slowly changing input signals
into sharply defined jitter-free output signals.
2. Features and benefits
Input levels:
For 74HC7540: CMOS level
For 74HCT7540: TTL level
Inverting outputs
Low-power dissipation
Complies with JEDEC standard no. 7 A
Multiple package options
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
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
74HC7540D 40 C to +125 C
74HCT7540D
74HC7540DB 40 C to +125 C
Name
SO20
SSOP20
Description
plastic small outline package; 20 leads;
body width 7.5 mm
plastic shrink small outline package; 20 leads;
body width 5.3 mm
Version
SOT163-1
SOT339-1
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