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SN74AHC541 bảng dữ liệu(PDF) 5 Page - Texas Instruments

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SN74AHC541, SN54AHC541
www.ti.com
SCLS261O – OCTOBER 1995 – REVISED SEPTEMBER 2015
6.4 Thermal Information
SN74AHC541
DB
DGV
DW
N
NS
PW
THERMAL METRIC(1)
UNIT
(SSOP)
(TVSOP)
(SOIC)
(PDIP)
(SO)
(TSSOP)
20 PINS
20 PINS
20 PINS
20 PINS
20 PINS
20 PINS
RθJA
Junction-to-ambient thermal resistance
99.9
119.2
83.0
54.9
80.4
105.4
°C/W
RθJC(top) Junction-to-case (top) thermal resistance
61.7
34.5
48.9
41.7
46.9
39.5
°C/W
RθJB
Junction-to-board thermal resistance
55.2
60.7
50.5
35.8
47.9
56.4
°C/W
Junction-to-top characterization
ψJT
22.6
1.2
21.1
27.9
19.9
3.1
°C/W
parameter
Junction-to-board characterization
ψJB
54.8
60.0
50.1
35.7
47.5
55.8
°C/W
parameter
(1)
For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report (SPRA953).
6.5 Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)
SN74AHC541
TA = 25°C
SN54AHC541
SN74AHC541
–40°C to 125°C
PARAMETER
TEST CONDITIONS
VCC
UNIT
MIN
TYP
MAX
MIN
MAX
MIN
MAX
MIN
MAX
2 V
1.9
2
1.9
1.9
1.9
IOH = –50 µA
3 V
2.9
3
2.9
2.9
2.9
VOH
4.5 V
4.4
4.5
4.4
4.4
4.4
V
IOH = –4 mA
3 V
2.58
2.48
2.48
2.48
IOH = –8 mA
4.5 V
3.94
3.8
3.8
3.8
2 V
0.1
0.1
0.1
0.1
IOL = 50 µA
3 V
0.1
0.1
0.1
0.1
VOL
4.5 V
0.1
0.1
0.1
0.1
V
IOH = 4 mA
3 V
0.36
0.5
0.44
0.5
IOH = 8 mA
4.5 V
0.36
0.5
0.44
0.5
II
VI = 5.5 V or GND
0 V to 5.5 V
±0.1
±1(1)
±1
±1
µA
VO = VCC or GND
IOZ
(2)
5.5 V
±0.25
±2.5
±2.5
±2.5
µA
VI (OE) = VIL or VIH
ICC
VI = VCC or GND
IO = 0
5.5 V
4
40
40
20
µA
Ci
VI = VCC or GND
5 V
2
10
10
pF
CO
VO = VCC or GND
5 V
4
pF
(1)
On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V.
(2)
For input and output pins, IOZ includes the input leakage current.
Copyright © 1995–2015, Texas Instruments Incorporated
Submit Documentation Feedback
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