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SN74AXC8T245_1808 Datasheet(Fiches technique) 6 Page - Texas Instruments

Numéro de pièce SN74AXC8T245_1808
Description  8-Bit Dual-Supply Bus Transceiver With Configurable Voltage Translation and Tri-State Outputs
Télécharger  38 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
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6
SN74AXC8T245
SCES875B – MARCH 2018 – REVISED AUGUST 2018
www.ti.com
Product Folder Links: SN74AXC8T245
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Copyright © 2018, Texas Instruments Incorporated
(1)
VCCI is the VCC associated with the input port.
(2)
VCCO is the VCC associated with the output port.
(3)
All unused data inputs of the device must be held at VCCI or GND to ensure proper device operation. See the Implications of Slow or
Floating CMOS Inputs application report.
6.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
(1) (2) (3)
MIN
MAX
UNIT
VCCA
Supply voltage
0.65
3.6
V
VCCB
Supply voltage
0.65
3.6
V
VIH
High-level input voltage
Data inputs
VCCI = 0.65 V - 0.75 V
VCCI × 0.70
V
VCCI = 0.76 V - 1 V
VCCI × 0.70
VCCI = 1.1 V - 1.95 V
VCCI × 0.65
VCCI = 2.3 V - 2.7 V
1.6
VCCI = 3 V - 3.6 V
2
Control inputs
(DIR, OE)
Referenced to VCCA
VCCA = 0.65 V - 0.75 V
VCCA × 0.70
VCCA = 0.76 V - 1 V
VCCA × 0.70
VCCA = 1.1 V - 1.95 V
VCCA × 0.65
VCCA = 2.3 V - 2.7 V
1.6
VCCA = 3 V - 3.6 V
2
VIL
Low-level input voltage
Data inputs
VCCI = 0.65 V - 0.75 V
VCCI × 0.30
V
VCCI = 0.76 V - 1 V
VCCI × 0.30
VCCI = 1.1 V - 1.95 V
VCCI × 0.35
VCCI = 2.3 V - 2.7 V
0.7
VCCI = 3 V - 3.6 V
0.8
Control inputs
(DIR, OE)
Referenced to VCCA
VCCA = 0.65 V - 0.75 V
VCCA × 0.30
VCCA = 0.76 V - 1 V
VCCA × 0.30
VCCA = 1.1 V - 1.95 V
VCCA × 0.35
VCCA = 2.3 V - 2.7 V
0.7
VCCA = 3 V - 3.6 V
0.8
VI
Input voltage(3)
0
3.6
V
VO
Output voltage
Active state
0
VCCO
(2)
V
Tri-state
0
3.6
Δt/Δv
Input transition rise or fall rate
10
ns/V
TA
Operating free-air temperature
–40
125
°C
6.4 Thermal Information
THERMAL METRIC
SN74AXC8T245
UNIT
PW (TSSOP)
RHL (VQFN)
RJW (UQFN)
24 PINS
24 PINS
24 PINS
RθJA
Junction-to-ambient thermal resistance
92.0
35.0
123.1
°C/W
RθJC(top)
Junction-to-case (top) thermal resistance
29.3
39.9
65.0
°C/W
RθJB
Junction-to-board thermal resistance
46.7
13.8
55.3
°C/W
ψJT
Junction-to-top characterization parameter
1.5
0.3
3.9
°C/W
ψJB
Junction-to-board characterization parameter
46.2
13.8
54.9
°C/W
RθJC(bot)
Junction-to-case (bottom) thermal resistance
N/A
1.4
N/A
°C/W




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