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SN74AHCT240N Fiches technique(PDF) 5 Page - Texas Instruments

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No de pièce SN74AHCT240N
Description  SNx4AHCT240 Octal Buffers/Drivers With 3-State Outputs
Download  28 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

SN74AHCT240N Fiches technique(HTML) 5 Page - Texas Instruments

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SN54AHCT240, SN74AHCT240
www.ti.com
SCLS252M – OCTOBER 1995 – REVISED APRIL 2016
Product Folder Links: SN54AHCT240 SN74AHCT240
Submit Documentation Feedback
Copyright © 1995–2016, Texas Instruments Incorporated
(1)
For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report (SPRA953).
7.4 Thermal Information
THERMAL METRIC(1)
SN74AHCT240
UNIT
DW
DB
DGV
N
NS
PW
20 PINS
20 PINS
20 PINS
20 PINS
20 PINS
20 PINS
RθJA
Junction-to-ambient thermal
resistance
83.0
99.9
119.2
54.9
80.4
105.4
°C/W
RθJC(top)
Junction-to-case (top) thermal
resistance
48.9
61.7
34.5
41.7
46.9
39.5
RθJB
Junction-to-board thermal
resistance
50.5
55.2
60.7
35.8
47.9
56.4
ψJT
Junction-to-top
characterization parameter
21.1
22.6
1.2
27.9
19.9
3.1
ψJB
Junction-to-board
characterization parameter
50.1
54.8
60.0
35.7
47.5
55.8
(1)
On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V.
(2)
This is the increase in supply current for each input at one of the specified TTL voltage levels, rather than 0 V or VCC.
7.5 Electrical Characteristics
over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C
SN54AHCT240
–40°C to 85°C
SN74AHCT240
–40°C to 125°C
SN74AHCT240
UNIT
MIN
TYP
MAX
MIN
MAX
MIN
MAX
MIN
MAX
VOH
IOH = –50 µA
4.5 V
4.4
4.5
4.4
4.4
4.4
V
IOH = –8 mA
3.94
3.8
3.8
3.8
VOL
IOL = 50 µA
4.5 V
0.1
0.1
0.1
0.1
V
IOL = 8 mA
0.36
0.44
0.44
0.44
IOZ
VO = VCC or GND
5.5 V
±0.25
±2.5
±2.5
±2.5
µA
II
VI = 5.5 V or GND
0 V to
5.5 V
±0.1
±1(1)
±1
±1
µA
ICC
VI = VCC or GND, IO = 0
5.5 V
4
40
40
40
µA
ΔICC
(2)
One input at 3.4 V,
Other inputs at VCC or
GND
5.5 V
1.35
1.5
1.5
1.5
mA
Ci
VI = VCC or GND
5 V
2.5
10
10
10
pF
Co
VO = VCC or GND
5 V
3
pF


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