TI SN74AVC8T245-Q1

SN74AVC8T245-Q1
SCES785A – DECEMBER 2008 – REVISED JUNE 2011
www.ti.com
8-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
Check for Samples: SN74AVC8T245-Q1
FEATURES
1
•
•
•
•
•
Qualified for Automotive Applications
Control Inputs VIH/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
Max 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
VCCA
VCCB
RHL PACKAGE
(TOP VIEW)
1
24
4
23 VCCB
22 OE
21 B1
5
6
20 B2
19 B3
7
18 B4
17 B5
DIR 2
A1 3
8
VCCA
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
GND
1
2
3
4
5
6
7
8
9
10
11
12
16 B6
15 B7
9
10
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
A2
A3
A4
A5
A6
A7
A8
GND
PW PACKAGE
(TOP VIEW)
DESCRIPTION/ORDERING INFORMATION
This 8-bit noninverting bus transceiver uses two separate configurable power-supply rails. The SN74AVC8T245
is optimized to operate with VCCA/VCCB set at 1.4 V to 3.6 V. It is operational with VCCA/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.
The SN74AVC8T245 is designed for 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. The output-enable (OE) input can be used to disable the outputs so the buses are
effectively isolated.
The SN74AVC8T245 is designed so the control pins (DIR and OE) are supplied by VCCA.
The SN74AVC8T245 solution is compatible with a single-supply system and can be replaced later with a '245
function, with minimal printed circuit board redesign.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2008–2011, Texas Instruments Incorporated
SN74AVC8T245-Q1
SCES785A – DECEMBER 2008 – REVISED JUNE 2011
www.ti.com
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs,
preventing damaging current backflow through the device when it is powered down.
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, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
ORDERING INFORMATION (1)
PACKAGE (2)
TA
–40°C to 125°C
(1)
(2)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
QFN – RHL
Reel of 1000
CAVC8T245QRHLRQ1
WE245Q
TSSOP – PW
Reel of 2000
SN74AVC8T245QPWRQ1
WE245Q
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
FUNCTION TABLE
(each 8-bit section)
INPUTS
OPERATION
OE
DIR
L
L
B data to A bus
L
H
A data to B bus
H
X
All outputs Hi-Z
LOGIC DIAGRAM (POSITIVE LOGIC)
DIR
2
22
OE
A1
3
21
B1
To Seven Other Channels
2
Copyright © 2008–2011, Texas Instruments Incorporated
SN74AVC8T245-Q1
SCES785A – DECEMBER 2008 – REVISED JUNE 2011
www.ti.com
ABSOLUTE MAXIMUM RATINGS (1)
over operating free-air temperature range (unless otherwise noted)
VCCA
VCCB
–0.5 V to 4.6 V
Supply voltage range
–0.5 V to 4.6 V
I/O ports (A port)
Input voltage
range (2)
VI
–0.5 V to 4.6
I/O ports (B port)
Control inputs
–0.5 V to 4.6 V
A port
–0.5 V to 4.6 V
VO
Voltage range
applied to any
output in the
high-impedance
or power-off
state (2)
B port
–0.5 V to 4.6 V
A port
–0.5 V to (VCCA + 0.5) V
VO
Voltage range
applied to any
output in the
high or low
state (2) (3)
B port
–0.5 V to (VCCB + 0.5) V
IIK
Input clamp
current
VI < 0
–50 mA
IOK
Output clamp
current
VO < 0
–50 mA
IO
Continuous output current
±50 mA
Continuous current through VCCA, VCCB, or GND
±100 mA
θJA
Package thermal impedance (4)
39.3°C/W
Tstg
Storage temperature range
–65°C to 150°C
Human-Body Model (HBM)
ESD
Electrostatic
discharge
Charged-Device Model (CDM )
(1)
(2)
(3)
(4)
8000 V
Machine Model (MM)
200 V
CAVC8T245QRHLRQ1
1000 V
SN74AVC8T245QPWRQ1
750 V
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 input voltage and output negative-voltage ratings may be exceeded if the input and output current ratings are observed.
The output positive-voltage rating may be exceeded up to 4.6 V maximum if the output current rating is observed.
The package thermal impedance is calculated in accordance with JESD 51-5.
Copyright © 2008–2011, Texas Instruments Incorporated
3
SN74AVC8T245-Q1
SCES785A – DECEMBER 2008 – REVISED JUNE 2011
www.ti.com
RECOMMENDED OPERATING CONDITIONS (1)
(2) (3)
MIN
MAX
VCCA
Supply voltage
VCCI
1.2
3.6
V
VCCB
Supply voltage
1.2
3.6
V
High-level input
voltage
VIH
Low-level input
voltage
VIL
High-level input
voltage
VIH
VIL
Low-level input
voltage
VI
Input voltage
Data inputs
Data inputs
DIR
(referenced to VCCA)
DIR
(referenced to VCCA)
VCCO
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
VCCI × 0.35
1.95 V to 2.7 V
0.7
2.7 V to 3.6 V
0.8
VCCA × 0.65
1.95 V to 2.7 V
1.6
2.7 V to 3.6 V
2
Output voltage
IOH
VCCA × 0.35
1.95 V to 2.7 V
0.7
IOL
3.6
Active state
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)
4
V
0.8
0
High-level output current
V
V
1.2 V to 1.95 V
2.7 V to 3.6 V
VO
V
1.2 V to 1.95 V
1.2 V to 1.95 V
UNIT
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
V
V
mA
mA
ns/V
125
°C
VCCI is the VCC associated with the input port.
VCCO is the VCC associated with the output port.
All unused data inputs of the device must be held at VCCI or GND to ensure proper device operation. See the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
Copyright © 2008–2011, Texas Instruments Incorporated
SN74AVC8T245-Q1
SCES785A – DECEMBER 2008 – REVISED JUNE 2011
www.ti.com
ELECTRICAL CHARACTERISTICS (1)
(2)
over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VCCB
1.2 V to 3.6 V
1.2 V to 3.6 V
1.2 V
1.2 V
1.4 V
1.4 V
1.00
1.65 V
1.65 V
1.2
IOH = –9 mA
2.3 V
2.3 V
1.75
IOH = –12 mA
3V
3V
2.3
IOL = 100 μA
1.2 V to 3.6 V
1.2 V to 3.6 V
1.2 V
1.2 V
1.4 V
1.4 V
0.35
1.65 V
1.65 V
0.45
IOL = 9 mA
2.3 V
2.3 V
0.55
IOL = 12 mA
3V
3V
0.7
1.2 V to 3.6 V
1.2 V to 3.6 V
IOH = –100 μA
IOH = –3 mA
IOH = –6 mA
VOH
VI = VIH
IOH = –8 mA
IOL = 3 mA
IOL = 6 mA
VOL
VI = VIL
IOL = 8 mA
II
Control
inputs
VI = VCCA or GND
Ioff
A or B
port
VI or VO = 0 to 3.6 V
IOZ
A or B
port
VO = VCCO or GND,
VI = VCCI or GND,
OE = VIH
(3)
ICCA
VI = VCCI or GND
MAX
MIN
MAX
VCCO – 0.2
V
0.2
0.15
±0.025
±0.25
±1
±0.1
±1
±5
0V
±0.1
±1
±5
3.6 V
3.6 V
±0.5
±2.5
±5
1.2 V to 3.6 V
1.2 V to 3.6 V
15
0V
3.6 V
–2
3.6 V
0V
15
1.2 V to 3.6 V
1.2 V to 3.6 V
15
, IO = 0
UNIT
0.95
0 V to 3.6 V
(4)
VI = VCCI or GND, IO = 0
TYP
0V
VI = VCCI or GND , IO = 0
ICCA + ICCB
MIN
0 V to 3.6 V
(4)
ICCB
–40°C to 125°C
TA = 25°C
VCCA
0V
3.6 V
15
3.6 V
0V
–2
1.2 V to 3.6 V
1.2 V to 3.6 V
25
V
μA
μA
μA
μA
μA
μA
Ci
Control
inputs
VI = 3.3 V or GND
3.3 V
3.3 V
3.5
pF
Cio
A or B
port
VO = 3.3 V or GND
3.3 V
3.3 V
6
pF
(1)
(2)
(3)
(4)
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.
All unused data inputs of the device must be held at VCCI or GND to ensure proper device operation. See the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
Copyright © 2008–2011, Texas Instruments Incorporated
5
SN74AVC8T245-Q1
SCES785A – DECEMBER 2008 – REVISED JUNE 2011
www.ti.com
SWITCHING CHARACTERISTICS
over recommended operating free-air temperature range, VCCA = 1.2 V (see Figure 10)
PARAMETER
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
FROM
(INPUT)
TO
(OUTPUT)
A
B
B
A
OE
A
OE
B
OE
A
OE
B
VCCB = 1.2 V
VCCB = 1.5 V
VCCB = 1.8 V
VCCB = 2.5 V
VCCB = 3.3 V
TYP
TYP
TYP
TYP
TYP
3.1
2.6
2.5
3
3.5
3.1
2.6
2.5
3
3.5
3.1
2.7
2.5
2.4
2.3
3.1
2.7
2.5
2.4
2.3
5.3
5.3
5.3
5.3
5.3
5.3
5.3
5.3
5.3
5.3
5.1
4
3.5
3.2
3.1
5.1
4
3.5
3.2
3.1
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.7
4
4.1
4.3
5.1
4.7
4
4.1
4.3
5.1
UNIT
ns
ns
ns
ns
ns
ns
SWITCHING CHARACTERISTICS
over recommended operating free-air temperature range, VCCA = 1.5 V ± 0.1 V (see Figure 10)
PARAMETER
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
6
FROM
(INPUT)
TO
(OUTPUT)
A
B
B
A
OE
A
OE
B
OE
A
OE
B
VCCB = 1.2 V
VCCB = 1.5 V
± 0.1 V
VCCB = 1.8 V
± 0.15 V
VCCB = 2.5 V
± 0.2 V
VCCB = 3.3 V
± 0.3 V
TYP
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
2.7
0.5
14.7
0.5
13.3
0.5
13.9
0.5
17.2
2.7
0.5
14.7
0.5
13.3
0.5
13.9
0.5
17.2
2.6
0.5
14.7
0.5
14.2
0.5
13.5
0.5
13.2
2.6
0.5
14.7
0.5
14.2
0.5
13.5
0.5
13.2
3.7
0.5
20.5
0.5
20.5
0.5
20.5
0.5
20.5
3.7
0.5
20.5
0.5
20.5
0.5
20.5
0.5
20.5
4.8
0.5
18.6
0.5
17.7
0.5
15.1
0.5
14.4
4.8
0.5
18.6
0.5
17.7
0.5
15.1
0.5
14.4
3.1
0.5
20.3
0.5
20.3
0.5
20.3
0.5
20.3
3.1
0.5
20.3
0.5
20.3
0.5
20.3
0.5
20.3
4.1
0.5
20.0
0.5
18.6
0.5
17.9
0.5
18.9
4.1
0.5
20.0
0.5
18.6
0.5
17.9
0.5
18.9
UNIT
ns
ns
ns
ns
ns
ns
Copyright © 2008–2011, Texas Instruments Incorporated
SN74AVC8T245-Q1
SCES785A – DECEMBER 2008 – REVISED JUNE 2011
www.ti.com
SWITCHING CHARACTERISTICS
over recommended operating free-air temperature range, VCCA = 1.8 V ± 0.15 V (see Figure 10)
PARAMETER
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
FROM
(INPUT)
TO
(OUTPUT)
A
B
B
A
OE
A
OE
B
OE
A
OE
B
VCCB = 1.2 V
VCCB = 1.5 V
± 0.1 V
VCCB = 1.8 V
± 0.15 V
VCCB = 2.5 V
± 0.2 V
VCCB = 3.3 V
± 0.3 V
TYP
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
2.5
0.5
14.2
0.5
13.0
0.5
12.3
0.5
12.1
2.5
0.5
14.2
0.5
13.0
0.5
12.3
0.5
12.1
2.5
0.5
13.3
0.5
13.0
0.5
12.1
0.5
11.8
2.5
0.5
13.3
0.5
13.0
0.5
12.1
0.5
11.8
3
0.5
17.2
0.5
17.2
0.5
17.2
0.5
17.2
3
0.5
17.2
0.5
17.2
0.5
17.2
0.5
17.2
4.6
0.5
19.6
0.5
17.0
0.5
14.2
0.5
13.2
4.6
0.5
19.6
0.5
17.0
0.5
14.2
0.5
13.2
2.8
0.5
17.7
0.5
17.7
0.5
17.7
0.5
17.7
2.8
0.5
17.7
0.5
17.7
0.5
17.7
0.5
17.7
3.9
0.5
18.9
0.5
17.3
0.5
15.8
0.5
15.4
3.9
0.5
18.9
0.5
17.3
0.5
15.8
0.5
15.4
UNIT
ns
ns
ns
ns
ns
ns
SWITCHING CHARACTERISTICS
over recommended operating free-air temperature range, VCCA = 2.5 V ± 0.2 V (see Figure 10)
PARAMETER
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
FROM
(INPUT)
TO
(OUTPUT)
A
B
B
A
OE
A
OE
B
OE
A
OE
B
VCCB = 1.2 V
Copyright © 2008–2011, Texas Instruments Incorporated
VCCB = 1.5 V
± 0.1 V
VCCB = 1.8 V
± 0.15 V
VCCB = 2.5 V
± 0.2 V
VCCB = 3.3 V
± 0.3 V
TYP
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
2.4
0.5
13.5
0.5
12.1
0.5
10.7
0.5
10.2
2.4
0.5
13.5
0.5
12.1
0.5
10.7
0.5
10.2
3
0.5
13.9
0.5
12.3
0.5
10.7
0.5
10.4
3
0.5
13.9
0.5
12.3
0.5
10.7
0.5
10.4
2.2
0.5
13.7
0.5
13.7
0.5
13.7
0.5
13.7
2.2
0.5
13.7
0.5
13.7
0.5
13.7
0.5
13.7
4.5
0.5
19.1
0.5
16.5
0.5
13.3
0.5
12.3
4.5
0.5
19.1
0.5
16.5
0.5
13.3
0.5
12.3
1.8
0.5
14.2
0.5
14.2
0.5
14.2
0.5
14.2
1.8
0.5
14.2
0.5
14.2
0.5
14.2
0.5
14.2
3.6
0.5
17.7
0.5
16.3
0.5
14.2
0.5
12.1
3.6
0.5
17.7
0.5
16.3
0.5
14.2
0.5
12.1
UNIT
ns
ns
ns
ns
ns
ns
7
SN74AVC8T245-Q1
SCES785A – DECEMBER 2008 – REVISED JUNE 2011
www.ti.com
SWITCHING CHARACTERISTICS
over recommended operating free-air temperature range, VCCA = 3.3 V ± 0.3 V (see Figure 10)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
A
B
B
A
OE
A
OE
B
OE
A
OE
B
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
VCCB = 1.2 V
VCCB = 1.5 V
± 0.1 V
VCCB = 1.8 V
± 0.15 V
VCCB = 2.5 V
± 0.2 V
VCCB = 3.3 V
± 0.3 V
TYP
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
2.3
0.5
13.2
0.5
11.1
0.5
10.4
0.5
9.7
2.3
0.5
13.2
0.5
11.1
0.5
10.4
0.5
9.7
3.5
0.5
17.2
0.5
12.1
0.5
10.2
0.5
9.7
3.5
0.5
17.2
0.5
12.1
0.5
10.2
0.5
9.7
2
0.5
12.3
0.5
12.3
0.5
12.3
0.5
12.3
2
0.5
12.3
0.5
12.3
0.5
12.3
0.5
12.3
4.5
0.5
18.9
0.5
16.1
0.5
13.2
0.5
12.1
4.5
0.5
18.9
0.5
16.1
0.5
13.2
0.5
12.1
1.7
0.5
12.3
0.5
12.3
0.5
12.3
0.5
12.3
1.7
0.5
12.3
0.5
12.3
0.5
12.3
0.5
12.3
3.4
0.5
17.4
0.5
15.8
0.5
13.7
0.5
12.6
3.4
0.5
17.4
0.5
15.8
0.5
13.7
0.5
12.6
UNIT
ns
ns
ns
ns
ns
ns
OPERATING CHARACTERISTICS
TA = 25°C
VCCA =
VCCB = 1.2 V
VCCA =
VCCB = 1.5 V
VCCA =
VCCB = 1.8 V
VCCA =
VCCB = 2.5 V
VCCA =
VCCB = 3.3 V
TYP
TYP
TYP
TYP
TYP
1
1
1
1
1
1
1
1
1
1
12
12
12
13
14
Outputs
disabled
1
1
1
1
1
Outputs
enabled
12
12
12
13
14
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
PARAMETER
A to B
CpdA
(1)
B to A
A to B
CpdB
(1)
B to A
(1)
TEST
CONDITIONS
Outputs
enabled
Outputs
disabled
Outputs
enabled
Outputs
disabled
Outputs
enabled
CL = 0,
f = 10 MHz,
tr = tf = 1 ns
UNIT
pF
CL = 0,
f = 10 MHz,
tr = tf = 1 ns
pF
Outputs
disabled
Power dissipation capacitance per transceiver
Table 1. Typical Total Static Power Consumption (ICCA + ICCB)
VCCB
8
VCCA
0V
1.2 V
1.5 V
1.8 V
2.5 V
3.3 V
0V
0
<0.5
<0.5
<0.5
<0.5
<0.5
1.2 V
<0.5
<1
<1
<1
<1
1
1.5 V
<0.5
<1
<1
<1
<1
1
1.8 V
<0.5
<1
<1
<1
<1
<1
2.5 V
<0.5
1
<1
<1
<1
<1
3.3 V
<0.5
1
<1
<1
<1
<1
UNIT
μA
Copyright © 2008–2011, Texas Instruments Incorporated
SN74AVC8T245-Q1
SCES785A – DECEMBER 2008 – REVISED JUNE 2011
www.ti.com
TYPICAL CHARACTERISTICS
Typical Propagation Delay (A to B) vs Load Capacitance
TA = 25°C, VCCA = 1.2 V
6
5
tPD − ns
4
3
2
VCCB = 1.2 V
VCCB = 1.5 V
VCCB = 1.8 V
1
VCCB = 2.5 V
VCCB = 3.3 V
0
0
10
20
30
40
50
60
CL − pF
Figure 1.
6
6
5
5
4
4
tPHL − ns
tPLH − ns
Typical Propagation Delay (A to B) vs Load Capacitance
TA = 25°C, VCCA = 1.5 V
3
2
3
VCCB = 1.2 V
2
VCCB = 1.2 V
VCCB = 1.5 V
VCCB = 1.5 V
VCCB = 1.8 V
VCCB = 1.8 V
1
1
VCCB = 2.5 V
VCCB = 2.5 V
VCCB = 3.3 V
VCCB = 3.3 V
0
0
0
10
20
30
40
50
60
0
10
20
30
CL − pF
CL − pF
Figure 2.
Figure 3.
Copyright © 2008–2011, Texas Instruments Incorporated
40
50
60
9
SN74AVC8T245-Q1
SCES785A – DECEMBER 2008 – REVISED JUNE 2011
www.ti.com
TYPICAL CHARACTERISTICS (continued)
Typical Propagation Delay (A to B) vs Load Capacitance
TA = 25°C, VCCA = 1.8 V
6
6
5
VCCB = 1.2 V
VCCB = 1.5 V
VCCB = 1.5 V
5
VCCB = 1.8 V
VCCB = 2.5 V
VCCB = 3.3 V
VCCB = 1.8 V
VCCB = 2.5 V
VCCB = 3.3 V
4
tPHL − ns
4
tPLH − ns
VCCB = 1.2 V
3
3
2
2
1
1
0
0
0
10
20
30
40
50
60
0
10
20
CL − pF
30
40
50
60
CL − pF
Figure 4.
Figure 5.
Typical Propagation Delay (A to B) vs Load Capacitance
TA = 25°C, VCCA = 2.5 V
6
6
5
VCCB = 1.2 V
VCCB = 1.5 V
VCCB = 1.5 V
5
VCCB = 1.8 V
VCCB = 1.8 V
VCCB = 2.5 V
VCCB = 2.5 V
3
3
2
2
1
1
0
0
0
10
20
30
CL − pF
Figure 6.
10
VCCB = 3.3 V
4
VCCB = 3.3 V
tPHL − ns
tPLH − ns
4
VCCB = 1.2 V
40
50
60
0
10
20
30
40
50
60
CL − pF
Figure 7.
Copyright © 2008–2011, Texas Instruments Incorporated
SN74AVC8T245-Q1
SCES785A – DECEMBER 2008 – REVISED JUNE 2011
www.ti.com
TYPICAL CHARACTERISTICS (continued)
Typical Propagation Delay (A to B) vs Load Capacitance
TA = 25°C, VCCA = 3.3 V
6
6
5
VCCB = 1.2 V
VCCB = 1.5 V
VCCB = 1.5 V
5
VCCB = 1.8 V
VCCB = 1.8 V
VCCB = 2.5 V
VCCB = 2.5 V
VCCB = 3.3 V
4
VCCB = 3.3 V
tPHL − ns
tPLH − ns
4
VCCB = 1.2 V
3
3
2
2
1
1
0
0
0
10
20
30
40
CL − pF
Figure 8.
Copyright © 2008–2011, Texas Instruments Incorporated
50
60
0
10
20
30
40
50
60
CL − pF
Figure 9.
11
SN74AVC8T245-Q1
SCES785A – DECEMBER 2008 – REVISED JUNE 2011
www.ti.com
PARAMETER MEASUREMENT INFORMATION
2 × VCCO
S1
RL
From Output
Under Test
Open
GND
CL
(see Note A)
TEST
S1
tpd
tPLZ/tPZL
tPHZ/tPZH
Open
2 × VCCO
GND
RL
tw
LOAD CIRCUIT
VCCI
VCCI/2
Input
VCCO
CL
RL
VTP
1.2 V
1.5 V ± 0.1 V
1.8 V ± 0.15 V
2.5 V ± 0.2 V
3.3 V ± 0.3 V
15 pF
15 pF
15 pF
15 pF
15 pF
2 kΩ
2 kΩ
2 kΩ
2 kΩ
2 kΩ
0.1 V
0.1 V
0.15 V
0.15 V
0.3 V
VCCI/2
0V
VOLTAGE WAVEFORMS
PULSE DURATION
VCCA
Output
Control
(low-level
enabling)
VCCA/2
VCCA/2
0V
tPLZ
tPZL
VCCI
Input
VCCI/2
VCCI/2
0V
tPLH
Output
tPHL
VCCO/2
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOH
VCCO/2
VOL
VCCO
Output
Waveform 1
S1 at 2 × VCCO
(see Note B)
VCCO/2
VOL + VTP
VOL
tPHZ
tPZH
Output
Waveform 2
S1 at GND
(see Note B)
VCCO/2
VOH − VTP
VOH
0V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRRv10 MHz, ZO = 50 Ω, dv/dt ≥ 1 V/ns.
D. The outputs are measured one at a time, with one transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPLH and tPHL are the same as tpd.
H. VCCI is the VCC associated with the input port.
I. VCCO is the VCC associated with the output port.
Figure 10. Load Circuit and Voltage Waveforms
12
Copyright © 2008–2011, Texas Instruments Incorporated
PACKAGE OPTION ADDENDUM
www.ti.com
2-Jul-2012
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package
Drawing
Pins
Package Qty
Eco Plan
(2)
Lead/
Ball Finish
MSL Peak Temp
(3)
CAVC8T245QRHLRQ1
ACTIVE
QFN
RHL
24
1000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
SN74AVC8T245QPWRQ1
ACTIVE
TSSOP
PW
24
2000
Green (RoHS
& no Sb/Br)
CU NIPDAU Level-3-260C-168 HR
Samples
(Requires Login)
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
OTHER QUALIFIED VERSIONS OF SN74AVC8T245-Q1 :
• Catalog: SN74AVC8T245
NOTE: Qualified Version Definitions:
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
2-Jul-2012
• Catalog - TI's standard catalog product
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
14-Jul-2012
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
CAVC8T245QRHLRQ1
Package Package Pins
Type Drawing
QFN
SN74AVC8T245QPWRQ1 TSSOP
SPQ
Reel
Reel
A0
Diameter Width (mm)
(mm) W1 (mm)
B0
(mm)
K0
(mm)
P1
(mm)
W
Pin1
(mm) Quadrant
RHL
24
1000
180.0
12.4
3.8
5.8
1.2
8.0
12.0
Q1
PW
24
2000
330.0
16.4
6.95
8.3
1.6
8.0
16.0
Q1
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
14-Jul-2012
*All dimensions are nominal
Device
Package Type
Package Drawing
Pins
SPQ
Length (mm)
Width (mm)
Height (mm)
CAVC8T245QRHLRQ1
QFN
RHL
24
1000
210.0
185.0
35.0
SN74AVC8T245QPWRQ1
TSSOP
PW
24
2000
367.0
367.0
38.0
Pack Materials-Page 2
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other
changes to its semiconductor products and services per JESD46C and to discontinue any product or service per JESD48B. Buyers should
obtain the latest relevant information before placing orders and should verify that such information is current and complete. All
semiconductor products (also referred to herein as “components”) are sold subject to TI’s terms and conditions of sale supplied at the time
of order acknowledgment.
TI warrants performance of its components to the specifications applicable at the time of sale, in accordance with the warranty in TI’s terms
and conditions of sale of semiconductor products. Testing and other quality control techniques are used to the extent TI deems necessary
to support this warranty. Except where mandated by applicable law, testing of all parameters of each component is not necessarily
performed.
TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products and
applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide
adequate design and operating safeguards.
TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or
other intellectual property right relating to any combination, machine, or process in which TI components or services are used. Information
published by TI regarding third-party products or services does not constitute a license to use such products or services or a warranty or
endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the
third party, or a license from TI under the patents or other intellectual property of TI.
Reproduction of significant portions of TI information in TI data books or data sheets is permissible only if reproduction is without alteration
and is accompanied by all associated warranties, conditions, limitations, and notices. TI is not responsible or liable for such altered
documentation. Information of third parties may be subject to additional restrictions.
Resale of TI components or services with statements different from or beyond the parameters stated by TI for that component or service
voids all express and any implied warranties for the associated TI component or service and is an unfair and deceptive business practice.
TI is not responsible or liable for any such statements.
Buyer acknowledges and agrees that it is solely responsible for compliance with all legal, regulatory and safety-related requirements
concerning its products, and any use of TI components in its applications, notwithstanding any applications-related information or support
that may be provided by TI. Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which
anticipate dangerous consequences of failures, monitor failures and their consequences, lessen the likelihood of failures that might cause
harm and take appropriate remedial actions. Buyer will fully indemnify TI and its representatives against any damages arising out of the use
of any TI components in safety-critical applications.
In some cases, TI components may be promoted specifically to facilitate safety-related applications. With such components, TI’s goal is to
help enable customers to design and create their own end-product solutions that meet applicable functional safety standards and
requirements. Nonetheless, such components are subject to these terms.
No TI components are authorized for use in FDA Class III (or similar life-critical medical equipment) unless authorized officers of the parties
have executed a special agreement specifically governing such use.
Only those TI components which TI has specifically designated as military grade or “enhanced plastic” are designed and intended for use in
military/aerospace applications or environments. Buyer acknowledges and agrees that any military or aerospace use of TI components
which have not been so designated is solely at the Buyer's risk, and that Buyer is solely responsible for compliance with all legal and
regulatory requirements in connection with such use.
TI has specifically designated certain components which meet ISO/TS16949 requirements, mainly for automotive use. Components which
have not been so designated are neither designed nor intended for automotive use; and TI will not be responsible for any failure of such
components to meet such requirements.
Products
Applications
Audio
www.ti.com/audio
Automotive and Transportation www.ti.com/automotive
Amplifiers
amplifier.ti.com
Communications and Telecom www.ti.com/communications
Data Converters
dataconverter.ti.com
Computers and Peripherals
www.ti.com/computers
DLP® Products
www.dlp.com
Consumer Electronics
www.ti.com/consumer-apps
DSP
dsp.ti.com
Energy and Lighting
www.ti.com/energy
Clocks and Timers
www.ti.com/clocks
Industrial
www.ti.com/industrial
Interface
interface.ti.com
Medical
www.ti.com/medical
Logic
logic.ti.com
Security
www.ti.com/security
Power Mgmt
power.ti.com
Space, Avionics and Defense
www.ti.com/space-avionics-defense
Microcontrollers
microcontroller.ti.com
Video and Imaging
www.ti.com/video
RFID
www.ti-rfid.com
OMAP Mobile Processors
www.ti.com/omap
TI E2E Community
e2e.ti.com
Wireless Connectivity
www.ti.com/wirelessconnectivity
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2012, Texas Instruments Incorporated