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SN74AVC8T245-Q1
SCES785D – DECEMBER 2008 – REVISED OCTOBER 2017
SN74AVC8T245-Q1 8-Bit Dual-Supply Bus Transceiver
With Configurable Voltage Translation and 3-State Outputs
1 Features
3 Description
•
•
The SN74AVC8T245-Q1 is an 8-bit noninverting bus
transceiver that uses two separate configurable
power-supply
rails.
The
SN74AVC8T245-Q1
operation is optimimal with VCCA and VCCB set at
1.4 V to 3.6 V. It is operational with VCCA and VCCB as
low as 1.2 V. The A port is designed to track VCCA.
VCCA accepts any supply voltage from 1.2 V to 3.6 V.
The B port is designed to track VCCB. VCCB accepts
any supply voltage from 1.2 V to 3.6 V. This allows
for universal low-voltage bidirectional translation
between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and
3.3-V voltage nodes.
1
•
•
•
•
•
•
•
Qualified for Automotive Applications
AEC Q100 Test Guidance With the Following
Results:
– Device Temperature Grade 1: –40°C to
+125°C Ambient Operating Temperature
Range
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C3B
Control Inputs VIH and VIL Levels Are Referenced
to VCCA Voltage
VCC Isolation Feature – If Either VCC Input Is at
GND, All I/O Ports Are in the High-Impedance
State
Ioff Supports Partial Power-Down-Mode Operation
Fully Configurable Dual-Rail Design Allows Each
Port to Operate Over the Full 1.4-V to 3.6-V
Power-Supply Range
I/Os Are 4.6-V Tolerant
Maximum Data Rates
– 170 Mbps (VCCA < 1.8 V or VCCB < 1.8 V)
– 320 Mbps (VCCA ≥ 1.8 V and VCCB ≥ 1.8 V)
Latch-Up Performance Exceeds 100 mA per
JESD 78, Class II
In the SN74AVC8T245 design, VCCA supplies the
control pins (DIR and OE).
Device Information(1)
PART NUMBER
PACKAGE
SN74AVC8T245-Q1
BODY SIZE (NOM)
VQFN (24)
3.50 mm × 3.50 mm
TSSOP (24)
5.00 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
2 Applications
•
•
•
•
The SN74AVC8T245 design enables asynchronous
communication between data buses. The device
transmits data from the A bus to the B bus or from
the B bus to the A bus, depending on the logic level
at the direction-control (DIR) input. One can use the
output-enable (OE) input to disable the outputs so the
buses are effectively isolated.
Telematics
Cluster
Head Unit
Navigation Systems
Logic Diagram (Positive Logic)
2
DIR
22
OE
3
A1
21
B1
To Seven Other Channels
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
SN74AVC8T245-Q1
SCES785D – DECEMBER 2008 – REVISED OCTOBER 2017
www.ti.com
Table of Contents
1
2
3
4
5
6
7
Features ..................................................................
Applications ...........................................................
Description .............................................................
Revision History.....................................................
Description (continued).........................................
Pin Configuration and Functions .........................
Specifications.........................................................
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
7.11
7.12
8
1
1
1
2
3
3
4
Absolute Maximum Ratings ...................................... 4
ESD Ratings.............................................................. 4
Recommended Operating Conditions....................... 5
Thermal Information .................................................. 6
Electrical Characteristics .......................................... 6
Switching Characteristics: VCCA = 1.2 V ................... 7
Switching Characteristics: VCCA = 1.5 V ± 0.1 V....... 8
Switching Characteristics: VCCA = 1.8 V ± 0.15 V..... 9
Switching Characteristics: VCCA = 2.5 V ± 0.2 V....... 9
Switching Characteristics: VCCA = 3.3 V ± 0.3 V... 10
Operating Characteristics...................................... 11
Typical Characteristics .......................................... 13
Parameter Measurement Information ................ 15
9
Detailed Description ............................................ 16
9.1
9.2
9.3
9.4
Overview .................................................................
Functional Block Diagram .......................................
Feature Description.................................................
Device Functional Modes........................................
16
16
16
16
10 Application and Implementation........................ 17
10.1 Application Information.......................................... 17
10.2 Typical Application ............................................... 17
11 Power Supply Recommendations ..................... 19
12 Layout................................................................... 19
12.1 Layout Guidelines ................................................. 19
12.2 Layout Example .................................................... 20
13 Device and Documentation Support ................. 21
13.1
13.2
13.3
13.4
13.5
13.6
Documentation Support ........................................
Receiving Notification of Documentation Updates
Community Resources..........................................
Trademarks ...........................................................
Electrostatic Discharge Caution ............................
Glossary ................................................................
21
21
21
21
21
21
14 Mechanical, Packaging, and Orderable
Information ........................................................... 21
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision C (March 2016) to Revision D
Page
•
Added Junction temperature, TJ in Absolute Maximum Ratings table ................................................................................... 4
•
Deleted 2DIR and 2OE from Overview ................................................................................................................................ 16
•
Added Documentation Support and Receiving Notification of Documentation Updates ..................................................... 21
Changes from Revision B (December 2012) to Revision C
Page
•
Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section. ................................................................................................. 1
•
Deleted Ordering Information table ........................................................................................................................................ 1
Changes from Revision A (June 2011) to Revision B
Page
•
Added bullets to the Features list ........................................................................................................................................... 1
•
Added Pin Functions table to the data sheet ......................................................................................................................... 3
•
Deleted θJA row from Absolute Maximum Ratings table......................................................................................................... 4
•
Changed ESD ratings ............................................................................................................................................................. 4
•
Added Thermal Information table ........................................................................................................................................... 6
•
Added Figure 10 and Figure 11 to the Typical Characteristics section ............................................................................... 13
2
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SCES785D – DECEMBER 2008 – REVISED OCTOBER 2017
5 Description (continued)
This device specification covers partial-power-down applications using Ioff. The Ioff circuitry disables the outputs
when the device is powered down. This inhibits current backflow into the device which prevents damage to the
device.
The VCC isolation feature ensures that if either VCC input is at GND, both ports are in the high-impedance state.
To ensure the high-impedance state during power up or power down, tie OE to VCC through a pullup resistor; the
current-sinking capability of the driver determines the minimum value of the resistor.
6 Pin Configuration and Functions
VCCB
1
24
PW Package
24-Pin TSSOP
Top View
4
23 V C C B
22 OE
21 B1
5
6
20 B2
19 B3
7
18 B4
17 B5
2
3
8
VCCA
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
GND
16 B6
15 B7
9
10
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
VCCB
VCCB
OE
B1
B2
B3
B4
B5
B6
B7
B8
GND
14 B8
12
13
GND
11
GND
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
VCCA
RHL Package
24-Pin VQFN
Top View
Pin Functions
PIN
NAME
TYPE
DESCRIPTION
VQFN
TSSOP
A1
3
3
I/O
Input/output A1. Referenced to VCCA.
A2
4
4
I/O
Input/output A2. Referenced to VCCA.
A3
5
5
I/O
Input/output A3. Referenced to VCCA.
A4
6
6
I/O
Input/output A4. Referenced to VCCA.
A5
7
7
I/O
Input/output A5. Referenced to VCCA.
A6
8
8
I/O
Input/output A6. Referenced to VCCA.
A7
9
9
I/O
Input/output A7. Referenced to VCCA.
A8
10
10
I/O
Input/output A8. Referenced to VCCA.
B1
21
21
I/O
Input/output B1. Referenced to VCCB.
B2
20
20
I/O
Input/output B2. Referenced to VCCB.
B3
19
19
I/O
Input/output B3. Referenced to VCCB.
B4
18
18
I/O
Input/output B4. Referenced to VCCB.
B5
17
17
I/O
Input/output B5. Referenced to VCCB.
B6
16
16
I/O
Input/output B6. Referenced to VCCB.
B7
15
15
I/O
Input/output B7. Referenced to VCCB.
B8
14
14
I/O
Input/output B8. Referenced to VCCB.
DIR
2
—
I
GND
12, 13
11, 12, 13
—
Direction-control input for 1 ports
Ground
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Product Folder Links: SN74AVC8T245-Q1
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SCES785D – DECEMBER 2008 – REVISED OCTOBER 2017
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Pin Functions (continued)
PIN
NAME
TYPE
DESCRIPTION
VQFN
TSSOP
OE
22
22
I
Thermal pad
—
—
—
The exposed thermal pad must be connected as a secondary GND or be left
electrically open.
3-state output-mode enable. Pull OE high to place ‘2’ outputs in 3-state
mode. Referenced to VCCA.
VCCA
1
1
—
A-port power supply voltage. 1.2 V ≤ VCCA ≤ 3.6 V
VCCB
23, 24
23, 24
—
B-port power supply voltage. 1.2 V ≤ VCCB ≤ 3.6 V
7 Specifications
7.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted) (1)
MIN
MAX
UNIT
–0.5
4.6
V
I/O ports (A port)
–0.5
4.6
V
I/O ports (B port)
–0.5
4.6
V
Control inputs
–0.5
4.6
V
A port
–0.5
4.6
V
VO
Voltage range
applied to any
output in the highimpedance or
power-off state (2)
B port
–0.5
4.6
V
Voltage range
applied to any
output in the high
or low state (2) (3)
A port
–0.5
(VCCA + 0.5)
V
VO
B port
–0.5
(VCCB + 0.5)
V
IIK
Input clamp current VI < 0
–50
mA
IOK
Output clamp
current
–50
mA
IO
Continuous output current
±50
mA
Continuous current through VCCA, VCCB, or GND
±100
mA
TJ
Junction temperature
150
°C
Tstg
Storage temperature
150
°C
VCCA
VCCB
Input voltage (2)
VI
(1)
(2)
(3)
Supply voltage
VO < 0
–65
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating
Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
The device withstands voltages in excess of input voltage and output negative-voltage ratings while operating within the input and output
current ratings.
The device withstands voltages in excess of the output positive-voltage rating up to 4.6 V maximum while operating within the output
current rating.
7.2 ESD Ratings
VALUE
V(ESD)
(1)
4
Electrostatic
discharge
Human-body model (HBM), per AEC Q100-002 Classification Level H2
(1)
Charged-device model (CDM), per AEC Q100-011 Classification Level C3B
±2000
±750
UNIT
V
AEC Q100-002 indicates that HBM stressing shall be in accordance with the ANSI/ESDA/JEDEC JS-001 specification.
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SCES785D – DECEMBER 2008 – REVISED OCTOBER 2017
7.3 Recommended Operating Conditions
See
(1) (2) (3)
VCCI
VCCO
MIN
MAX
UNIT
VCCA
Supply voltage
1.2
3.6
V
VCCB
Supply voltage
1.2
3.6
V
High-level input
voltage
VIH
Low-level input
voltage
VIL
Data inputs
Data inputs
1.2 V to 1.95 V
VCCI × 0.65
1.95 V to 2.7 V
1.6
2.7 V to 3.6 V
2
1.2 V to 1.95 V
VCCI × 0.35
1.95 V to 2.7 V
0.7
2.7 V to 3.6 V
High-level input
voltage
VIH
Low-level input
voltage
VIL
VI
DIR
(referenced to VCCA)
DIR
(referenced to VCCA)
Output voltage
IOH
IOL
1.95 V to 2.7 V
1.6
2.7 V to 3.6 V
2
V
1.2 V to 1.95 V
VCCA × 0.35
1.95 V to 2.7 V
0.7
2.7 V to 3.6 V
0.8
0
3.6
0
VCCO
3-state
0
3.6
Low-level output current
Δt / Δv
Input transition rise or fall rate
TA
Operating free-air temperature
(1)
(2)
(3)
VCCA × 0.65
Active state
High-level output current
V
0.8
1.2 V to 1.95 V
Input voltage
VO
V
1.2 V
–3
1.4 V to 1.6 V
–6
1.65 V to 1.95 V
–8
2.3 V to 2.7 V
–9
3 V to 3.6 V
–12
1.2 V
3
1.4 V to 1.6 V
6
1.65 V to 1.95 V
8
2.3 V to 2.7 V
9
3 V to 3.6 V
12
5
–40
125
V
V
V
mA
mA
ns / V
°C
VCCI is the VCC associated with the input port.
VCCO is the VCC associated with the output port.
Hold all unused data inputs of the device at VCCI or GND to assure proper device operation. See the TI application report, Implications
of Slow or Floating CMOS Inputs, SCBA004.
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7.4 Thermal Information
SN74AVC8T245-Q1
THERMAL METRIC (1)
RHL (VQFN)
UNIT
24 PINS
RθJA
Junction-to-ambient thermal resistance
35
°C/W
RθJC(top)
RθJB
Junction-to-case (top) thermal resistance
39.9
°C/W
Junction-to-board thermal resistance
13.8
°C/W
ψJT
Junction-to-top characterization parameter
0.3
°C/W
ψJB
Junction-to-board characterization parameter
13.8
°C/W
RθJC(bot)
Junction-to-case (bottom) thermal resistance
1.4
°C/W
(1)
For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report.
7.5 Electrical Characteristics
over recommended operating free-air temperature range (unless otherwise noted) (1)
PARAMETER
TEST CONDITIONS
VCCB
TA
MIN
1.2 V to 3.6 V
1.2 V to 3.6 V
TA = –40°C to
+125°C
VCCO
– 0.2
1.2 V
1.2 V
TA = 25°C
1.4 V
1.4 V
TA = –40°C to
+125°C
1
1.65 V
1.65 V
TA = –40°C to
+125°C
1.2
IOH = –9 mA
2.3 V
2.3 V
TA = –40°C to
+125°C
1.75
IOH = –12 mA
3V
3V
TA = –40°C to
+125°C
2.3
IOL = 100 μA
1.2 V to 3.6 V
1.2 V to 3.6 V
TA = –40°C to
+125°C
1.2 V
1.2 V
TA = 25°C
1.4 V
1.4 V
TA = –40°C to
+125°C
0.35
1.65 V
1.65 V
TA = –40°C to
+125°C
0.45
IOL = 9 mA
2.3 V
2.3 V
TA = –40°C to
+125°C
0.55
IOL = 12 mA
3V
3V
TA = –40°C to
+125°C
0.7
IOH = –100 μA
VCCA
IOH = –3 mA
IOH = –6 mA
VOH
IOH = –8 mA
VI = VIH
IOL = 3 mA
IOL = 6 mA
VOL
(2)
IOL = 8 mA
VI = VIL
TA = 25°C
II
Control inputs
VI = VCCA or GND
1.2 V to 3.6 V
1.2 V to 3.6 V
Ioff
IOZ
(1)
(2)
(3)
6
A or B port
(3)
A or B port
0 V to 3.6 V
VI or VO = 0 to 3.6 V
0 V to 3.6 V
0V
TA = –40°C to
+125°C
3.6 V
3.6 V
TA = –40°C to
+125°C
TA = 25°C
VO = VCCO or GND,
VI = VCCI or GND,
OE = VIH
UNIT
V
0.2
0.15
±0.02
5
V
±0.25
µA
±1
±0.1
TA = –40°C to
+125°C
TA = 25°C
MAX
0.95
TA = –40°C to
+125°C
TA = 25°C
0V
TYP
±1
±5
±0.1
±1
µA
±5
±0.5
±2.5
±5
µA
VCCO is the VCC associated with the output port.
VCCI is the VCC associated with the input port.
For I/O ports, the parameter IOZ includes the input leakage current.
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Electrical Characteristics (continued)
over recommended operating free-air temperature range (unless otherwise noted)(1) (2)
PARAMETER
TEST CONDITIONS
VCCA
VCCB
TA
1.2 V to 3.6 V
1.2 V to 3.6 V
TA = –40°C to
+125°C
15
0V
3.6 V
TA = –40°C to
+125°C
–2
3.6 V
0V
TA = –40°C to
+125°C
15
1.2 V to 3.6 V
1.2 V to 3.6 V
TA = –40°C to
+125°C
15
0V
3.6 V
TA = –40°C to
+125°C
15
3.6 V
0V
TA = –40°C to
+125°C
–2
1.2 V to 3.6 V
1.2 V to 3.6 V
TA = –40°C to
+125°C
25
VI = VCCI or GND (4), IO = 0
ICCA
VI = VCCI or GND (4), IO = 0
ICCB
MIN
TYP
MAX
UNIT
µA
µA
ICCA + ICCB
VI = VCCI or GND, IO = 0
Ci
Control inputs
VI = 3.3 V or GND
3.3 V
3.3 V
TA = 25°C
3.5
pF
Cio
A or B port
VO = 3.3 V or GND
3.3 V
3.3 V
TA = 25°C
6
pF
(4)
µA
Hold all unused data inputs of the device at VCCI or GND to assure proper device operation. See the TI application report, Implications
of Slow or Floating CMOS Inputs, SCBA004.
7.6 Switching Characteristics: VCCA = 1.2 V
over recommended operating free-air temperature range, VCCA = 1.2 V (see Figure 12)
PARAMETER
tPLH, tPHL
tPLH, tPHL
FROM
(INPUT)
TO
(OUTPUT)
A
B
B
A
VCCB
TYP
VCCB = 1.2 V
3.1
VCCB = 1.5 V
2.6
VCCB = 1.8 V
2.5
VCCB = 2.5 V
3
VCCB = 3.3 V
3.5
VCCB = 1.2 V
3.1
VCCB = 1.5 V
2.7
VCCB = 1.8 V
2.5
VCCB = 2.5 V
2.4
VCCB = 3.3 V
2.3
UNIT
ns
ns
VCCB = 1.2 V
VCCB = 1.5 V
tPZH, tPZL
OE
A
VCCB = 1.8 V
5.3
ns
VCCB = 2.5 V
VCCB = 3.3 V
VCCB = 1.2 V
tPZH, tPZL
OE
B
5.1
VCCB = 1.5 V
4
VCCB = 1.8 V
3.5
VCCB = 2.5 V
3.2
VCCB = 3.3 V
3.1
ns
VCCB = 1.2 V
VCCB = 1.5 V
tPHZ, tPLZ
OE
A
VCCB = 1.8 V
4.8
ns
VCCB = 2.5 V
VCCB = 3.3 V
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Switching Characteristics: VCCA = 1.2 V (continued)
over recommended operating free-air temperature range, VCCA = 1.2 V (see Figure 12)
FROM
(INPUT)
PARAMETER
tPHZ, tPLZ
TO
(OUTPUT)
OE
B
VCCB
TYP
VCCB = 1.2 V
4.7
VCCB = 1.5 V
4
VCCB = 1.8 V
4.1
VCCB = 2.5 V
4.3
VCCB = 3.3 V
5.1
UNIT
ns
7.7 Switching Characteristics: VCCA = 1.5 V ± 0.1 V
over recommended operating free-air temperature range, VCCA = 1.5 V ± 0.1 V (see Figure 12)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCCB
MIN
VCCB = 1.2 V
tPLH, tPHL
A
B
B
A
OE
A
14.7
VCCB = 1.8 V ± 0.15 V
0.5
13.3
VCCB = 2.5 V ± 0.2 V
0.5
13.9
VCCB = 3.3 V ± 0.3 V
0.5
OE
B
OE
A
0.5
14.7
VCCB = 1.8 V ± 0.15 V
0.5
14.2
VCCB = 2.5 V ± 0.2 V
0.5
13.5
VCCB = 3.3 V ± 0.3 V
0.5
13.2
8
OE
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B
ns
5.3
VCCB = 1.5 V ± 0.1 V
0.5
20.5
VCCB = 1.8 V ± 0.15 V
0.5
20.5
VCCB = 2.5 V ± 0.2 V
0.5
20.5
VCCB = 3.3 V ± 0.3 V
0.5
ns
20.5
5.1
VCCB = 1.5 V ± 0.1 V
0.5
18.6
VCCB = 1.8 V ± 0.15 V
0.5
17.7
VCCB = 2.5 V ± 0.2 V
0.5
15.1
VCCB = 3.3 V ± 0.3 V
0.5
14.4
ns
4.8
VCCB = 1.5 V ± 0.1 V
0.5
20.3
VCCB = 1.8 V ± 0.15 V
0.5
20.3
VCCB = 2.5 V ± 0.2 V
0.5
20.3
VCCB = 3.3 V ± 0.3 V
0.5
VCCB = 1.2 V
tPHZ, tPLZ
17.2
VCCB = 1.5 V ± 0.1 V
VCCB = 1.2 V
tPHZ, tPLZ
ns
3.1
VCCB = 1.2 V
tPZH, tPZL
UNIT
3.1
0.5
VCCB = 1.2 V
tPZH, tPZL
MAX
VCCB = 1.5 V ± 0.1 V
VCCB = 1.2 V
tPLH, tPHL
TYP
ns
20.3
4.7
VCCB = 1.5 V ± 0.1 V
0.5
20.0
VCCB = 1.8 V ± 0.15 V
0.5
18.6
VCCB = 2.5 V ± 0.2 V
0.5
17.9
VCCB = 3.3 V ± 0.3 V
0.5
18.9
ns
Copyright © 2008–2017, Texas Instruments Incorporated
Product Folder Links: SN74AVC8T245-Q1
SN74AVC8T245-Q1
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SCES785D – DECEMBER 2008 – REVISED OCTOBER 2017
7.8 Switching Characteristics: VCCA = 1.8 V ± 0.15 V
over recommended operating free-air temperature range, VCCA = 1.8 V ± 0.15 V (see Figure 12)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCCB
MIN
VCCB = 1.2 V
tPLH, tPHL
A
B
B
A
OE
A
14.2
VCCB = 1.8 V ± 0.15 V
0.5
13.0
VCCB = 2.5 V ± 0.2 V
0.5
12.3
VCCB = 3.3 V ± 0.3 V
0.5
OE
B
OE
A
VCCB = 1.5 V ± 0.1 V
0.5
13.3
0.5
13.0
VCCB = 2.5 V ± 0.2 V
0.5
12.1
VCCB = 3.3 V ± 0.3 V
0.5
11.8
OE
B
ns
3
VCCB = 1.5 V ± 0.1 V
0.5
17.2
VCCB = 1.8 V ± 0.15 V
0.5
17.2
VCCB = 2.5 V ± 0.2 V
0.5
17.2
VCCB = 3.3 V ± 0.3 V
0.5
ns
17.2
4.6
VCCB = 1.5 V ± 0.1 V
0.5
19.6
VCCB = 1.8 V ± 0.15 V
0.5
17.0
VCCB = 2.5 V ± 0.2 V
0.5
14.2
VCCB = 3.3 V ± 0.3 V
0.5
13.2
ns
2.8
VCCB = 1.5 V ± 0.1 V
0.5
17.7
VCCB = 1.8 V ± 0.15 V
0.5
17.7
VCCB = 2.5 V ± 0.2 V
0.5
17.7
VCCB = 3.3 V ± 0.3 V
0.5
VCCB = 1.2 V
tPHZ, tPLZ
12.1
VCCB = 1.8 V ± 0.15 V
VCCB = 1.2 V
tPHZ, tPLZ
ns
2.5
VCCB = 1.2 V
tPZH, tPZL
UNIT
2.5
0.5
VCCB = 1.2 V
tPZH, tPZL
MAX
VCCB = 1.5 V ± 0.1 V
VCCB = 1.2 V
tPLH, tPHL
TYP
ns
17.7
3.9
VCCB = 1.5 V ± 0.1 V
0.5
18.9
VCCB = 1.8 V ± 0.15 V
0.5
17.3
VCCB = 2.5 V ± 0.2 V
0.5
15.8
VCCB = 3.3 V ± 0.3 V
0.5
15.4
ns
7.9 Switching Characteristics: VCCA = 2.5 V ± 0.2 V
over recommended operating free-air temperature range, VCCA = 2.5 V ± 0.2 V (see Figure 12)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCCB
MIN
VCCB = 1.2 V
tPLH, tPHL
A
B
B
A
MAX
0.5
13.5
VCCB = 1.8 V ± 0.15 V
0.5
12.1
VCCB = 2.5 V ± 0.2 V
0.5
10.7
VCCB = 3.3 V ± 0.3 V
0.5
10.2
0.5
13.9
VCCB = 1.8 V ± 0.15 V
0.5
12.3
VCCB = 2.5 V ± 0.2 V
0.5
10.7
VCCB = 3.3 V ± 0.3 V
0.5
10.4
Product Folder Links: SN74AVC8T245-Q1
ns
3
VCCB = 1.5 V ± 0.1 V
Copyright © 2008–2017, Texas Instruments Incorporated
UNIT
2.4
VCCB = 1.5 V ± 0.1 V
VCCB = 1.2 V
tPLH, tPHL
TYP
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ns
9
SN74AVC8T245-Q1
SCES785D – DECEMBER 2008 – REVISED OCTOBER 2017
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Switching Characteristics: VCCA = 2.5 V ± 0.2 V (continued)
over recommended operating free-air temperature range, VCCA = 2.5 V ± 0.2 V (see Figure 12)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCCB
MIN
VCCB = 1.2 V
tPZH, tPZL
OE
A
OE
B
OE
A
13.7
VCCB = 1.8 V ± 0.15 V
0.5
13.7
VCCB = 2.5 V ± 0.2 V
0.5
13.7
VCCB = 3.3 V ± 0.3 V
0.5
OE
B
ns
13.7
4.5
VCCB = 1.5 V ± 0.1 V
0.5
19.1
VCCB = 1.8 V ± 0.15 V
0.5
16.5
VCCB = 2.5 V ± 0.2 V
0.5
13.3
VCCB = 3.3 V ± 0.3 V
0.5
ns
12.3
1.8
VCCB = 1.5 V ± 0.1 V
0.5
14.2
VCCB = 1.8 V ± 0.15 V
0.5
14.2
VCCB = 2.5 V ± 0.2 V
0.5
14.2
VCCB = 3.3 V ± 0.3 V
0.5
VCCB = 1.2 V
tPHZ, tPLZ
UNIT
2.2
0.5
VCCB = 1.2 V
tPHZ, tPLZ
MAX
VCCB = 1.5 V ± 0.1 V
VCCB = 1.2 V
tPZH, tPZL
TYP
ns
14.2
3.6
VCCB = 1.5 V ± 0.1 V
0.5
17.7
VCCB = 1.8 V ± 0.15 V
0.5
16.3
VCCB = 2.5 V ± 0.2 V
0.5
14.2
VCCB = 3.3 V ± 0.3 V
0.5
12.1
ns
7.10 Switching Characteristics: VCCA = 3.3 V ± 0.3 V
over recommended operating free-air temperature range, VCCA = 3.3 V ± 0.3 V (see Figure 12)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCCB
MIN
VCCB = 1.2 V
tPLH, tPHL
A
B
B
A
OE
A
13.2
VCCB = 1.8 V ± 0.15 V
0.5
11.1
VCCB = 2.5 V ± 0.2 V
0.5
10.4
VCCB = 3.3 V ± 0.3 V
0.5
9.7
10
OE
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B
ns
3.5
VCCB = 1.5 V ± 0.1 V
0.5
17.2
VCCB = 1.8 V ± 0.15 V
0.5
12.1
VCCB = 2.5 V ± 0.2 V
0.5
10.2
VCCB = 3.3 V ± 0.3 V
0.5
ns
9.7
2
VCCB = 1.5 V ± 0.1 V
0.5
12.3
VCCB = 1.8 V ± 0.15 V
0.5
12.3
VCCB = 2.5 V ± 0.2 V
0.5
12.3
VCCB = 3.3 V ± 0.3 V
0.5
12.3
VCCB = 1.2 V
tPZH, tPZL
UNIT
2.3
0.5
VCCB = 1.2 V
tPZH, tPZL
MAX
VCCB = 1.5 V ± 0.1 V
VCCB = 1.2 V
tPLH, tPHL
TYP
ns
4.5
VCCB = 1.5 V ± 0.1 V
0.5
18.9
VCCB = 1.8 V ± 0.15 V
0.5
16.1
VCCB = 2.5 V ± 0.2 V
0.5
13.2
VCCB = 3.3 V ± 0.3 V
0.5
12.3
ns
Copyright © 2008–2017, Texas Instruments Incorporated
Product Folder Links: SN74AVC8T245-Q1
SN74AVC8T245-Q1
www.ti.com
SCES785D – DECEMBER 2008 – REVISED OCTOBER 2017
Switching Characteristics: VCCA = 3.3 V ± 0.3 V (continued)
over recommended operating free-air temperature range, VCCA = 3.3 V ± 0.3 V (see Figure 12)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCCB
MIN
TYP
VCCB = 1.2 V
tPHZ, tPLZ
OE
A
OE
B
UNIT
1.7
VCCB = 1.5 V ± 0.1 V
0.5
12.3
VCCB = 1.8 V ± 0.15 V
0.5
12.3
VCCB = 2.5 V ± 0.2 V
0.5
12.3
VCCB = 3.3 V ± 0.3 V
0.5
ns
12.3
VCCB = 1.2 V
tPHZ, tPLZ
MAX
3.4
VCCB = 1.5 V ± 0.1 V
0.5
17.4
VCCB = 1.8 V ± 0.15 V
0.5
15.8
VCCB = 2.5 V ± 0.2 V
0.5
13.7
VCCB = 3.3 V ± 0.3 V
0.5
12.6
ns
7.11 Operating Characteristics
TA = 25°C
PARAMETER
TEST CONDITIONS
VCCA
TYP
UNIT
VCCA = VCCB = 1.2 V
CL = 0,
f = 10 MHz,
tr = tf = 1 ns
Outputs
enabled
VCCA = VCCB = 1.8 V
1
VCCA = VCCB = 2.5 V
VCCA = VCCB = 3.3 V
A to B
VCCA = VCCB = 1.2 V
CL = 0,
f = 10 MHz,
tr = tf = 1 ns
Outputs
disabled
CpdA
VCCA = VCCB = 1.5 V
VCCA = VCCB = 1.5 V
VCCA = VCCB = 1.8 V
1
VCCA = VCCB = 2.5 V
VCCA = VCCB = 3.3 V
(1)
CL = 0,
f = 10 MHz,
tr = tf = 1 ns
Outputs
enabled
B to A
VCCA = VCCB = 1.2 V
12
VCCA = VCCB = 1.5 V
12
VCCA = VCCB = 1.8 V
12
VCCA = VCCB = 2.5 V
13
VCCA = VCCB = 3.3 V
14
pF
VCCA = VCCB = 1.2 V
CL = 0,
f = 10 MHz,
tr = tf = 1 ns
Outputs
disabled
VCCA = VCCB = 1.5 V
VCCA = VCCB = 1.8 V
1
VCCA = VCCB = 2.5 V
VCCA = VCCB = 3.3 V
(1)
Power dissipation capacitance per transceiver
Copyright © 2008–2017, Texas Instruments Incorporated
Product Folder Links: SN74AVC8T245-Q1
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SCES785D – DECEMBER 2008 – REVISED OCTOBER 2017
www.ti.com
Operating Characteristics (continued)
TA = 25°C
PARAMETER
TEST CONDITIONS
CL = 0,
f = 10 MHz,
tr = tf = 1 ns
Outputs
enabled
A to B
TYP
VCCA = VCCB = 1.2 V
12
VCCA = VCCB = 1.5 V
12
VCCA = VCCB = 1.8 V
12
VCCA = VCCB = 2.5 V
13
VCCA = VCCB = 3.3 V
14
UNIT
VCCA = VCCB = 1.2 V
VCCA = VCCB = 1.5 V
CL = 0,
f = 10 MHz,
tr = tf = 1 ns
Outputs
disabled
CpdB
VCCA
VCCA = VCCB = 1.8 V
1
VCCA = VCCB = 2.5 V
VCCA = VCCB = 3.3 V
(1)
pF
VCCA = VCCB = 1.2 V
VCCA = VCCB = 1.5 V
CL = 0,
f = 10 MHz,
tr = tf = 1 ns
Outputs
enabled
VCCA = VCCB = 1.8 V
1
VCCA = VCCB = 2.5 V
VCCA = VCCB = 3.3 V
B to A
VCCA = VCCB = 1.2 V
VCCA = VCCB = 1.5 V
CL = 0,
f = 10 MHz,
tr = tf = 1 ns
Outputs
disabled
VCCA = VCCB = 1.8 V
1
VCCA = VCCB = 2.5 V
VCCA = VCCB = 3.3 V
Table 1. Typical Total Static Current Consumption (ICCA + ICCB)
VCCB
12
VCCA
0V
1.2 V
1.5 V
1.8 V
2.5 V
3.3 V
UNIT
0V
0