74AVC8T245DGVRG4 [TI]
8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS; 可配置电压转换和3态输出的8位双电源总线收发器
| 型号： | 74AVC8T245DGVRG4 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS |
| 文件： | 总22页 (文件大小：670K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN74AVC8T245
8-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES517H–DECEMBER 2003–REVISED FEBRUARY 2007
FEATURES
•
Control Inputs VIH/VIL Levels Are Referenced
to VCCA Voltage
•
Max Data Rates
–
–
170 Mbps (VCCA < 1.8 V or VCCB < 1.8 V)
•
VCC Isolation Feature – If Either VCC Input Is at
GND, All I/O Ports Are in the High-Impedance
State
320 Mbps (VCCA ≥ 1.8 V and VCCB ≥ 1.8 V)
•
•
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
•
•
Ioff Supports Partial Power-Down-Mode
Operation
ESD Protection Exceeds JESD 22
–
–
–
8000-V Human-Body Model (A114-A)
200-V Machine Model (A115-A)
Fully Configurable Dual-Rail Design Allows
Each Port to Operate Over the Full 1.4-V to
3.6-V Power-Supply Range
1000-V Charged-Device Model (C101)
•
I/Os Are 4.6-V Tolerant
DGV OR PW PACKAGE
(TOP VIEW)
RHL PACKAGE
(TOP VIEW)
1
24
23
22
21
20
19
18
17
16
15
14
13
V
DIR
V
V
CCA
CCB
2
CCB
1
24
3
A1
A2
A3
A4
A5
A6
A7
A8
OE
B1
B2
B3
B4
B5
B6
B7
B8
GND
23
22
21
20
19
18
17
16
15
14
2
V
DIR
A1
A2
A3
A4
A5
A6
A7
A8
4
CCB
3
OE
B1
B2
B3
B4
B5
B6
B7
B8
5
4
6
5
7
6
8
7
9
8
10
11
12
9
GND
GND
10
11
GND
12
13
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.
ORDERING INFORMATION
TA
PACKAGE(1)
ORDERABLE PART NUMBER
SN74AVC8T245RHLR
SN74AVC8T245PW
TOP-SIDE MARKING
WE245
QFN – RHL
Reel of 1000
Tube of 60
–40°C to 85°C
TSSOP – PW
TVSOP – DGV
WE245
WE245
Reel of 2000
Reel of 2000
SN74AVC8T245PWR
SN74AVC8T245DGVR
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
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.
Copyright © 2003–2007, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
SN74AVC8T245
8-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES517H–DECEMBER 2003–REVISED FEBRUARY 2007
www.ti.com
DESCRIPTION/ORDERING INFORMATION (CONTINUED)
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.
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 shall be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
FUNCTION TABLE
(each 8-bit section)
INPUTS
OPERATION
OE
L
DIR
L
B data to A bus
A data to B bus
All outputs Hi-Z
L
H
H
X
LOGIC DIAGRAM (POSITIVE LOGIC)
2
3
DIR
A1
22
OE
B1
21
To Seven Other Channels
2
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SN74AVC8T245
8-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES517H–DECEMBER 2003–REVISED FEBRUARY 2007
Absolute Maximum Ratings(1)
over operating free-air temperature range (unless otherwise noted)
MIN
MAX
UNIT
VCCA
Supply voltage range
VCCB
–0.5
4.6
V
I/O ports (A port)
I/O ports (B port)
Control inputs
A port
–0.5
–0.5
–0.5
–0.5
–0.5
4.6
4.6
4.6
4.6
4.6
VI
Input voltage range(2)
V
Voltage range applied to any output
VO
VO
V
V
in the high-impedance or power-off state(2)
B port
A port
–0.5 VCCA + 0.5
Voltage range applied to any output in the high or low state(2)(3)
B port
–0.5 VCCB + 0.5
IIK
IOK
IO
Input clamp current
VI < 0
–50
–50
±50
±100
86
mA
mA
mA
mA
Output clamp current
VO < 0
Continuous output current
Continuous current through VCCA, VCCB, or GND
DGV package
PW package
RHL package
θJA
Package thermal impedance(4)
88
°C/W
°C
43
Tstg
Storage temperature range
–65
150
(1) 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.
(2) The input voltage and output negative-voltage ratings may be exceeded if the input and output current ratings are observed.
(3) The output positive-voltage rating may be exceeded up to 4.6 V maximum if the output current rating is observed.
(4) The package thermal impedance is calculated in accordance with JESD 51-7.
3
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SN74AVC8T245
8-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES517H–DECEMBER 2003–REVISED FEBRUARY 2007
www.ti.com
Recommended Operating Conditions(1)(2)(3)
VCCI
VCCO
MIN
MAX UNIT
VCCA
VCCB
Supply voltage
Supply voltage
1.2
3.6
3.6
V
V
1.2
CCI × 0.65
1.6
1.2 V to 1.95 V
1.95 V to 2.7 V
2.7 V to 3.6 V
1.2 V to 1.95 V
1.95 V to 2.7 V
2.7 V to 3.6 V
1.2 V to 1.95 V
1.95 V to 2.7 V
2.7 V to 3.6 V
1.2 V to 1.95 V
1.95 V to 2.7 V
2.7 V to 3.6 V
V
High-level
input voltage
VIH
VIL
VIH
VIL
Data inputs
Data inputs
V
V
V
V
2
VCCI × 0.35
Low-level
input voltage
0.7
0.8
V
CCA × 0.65
High-level
input voltage
DIR
1.6
2
(referenced to VCCA
)
)
V
CCA × 0.35
Low-level
input voltage
DIR
0.7
0.8
3.6
VCCO
3.6
–3
–6
–8
–9
–12
3
(referenced to VCCA
VI
Input voltage
0
0
0
V
V
Active state
3-state
VO
Output voltage
1.2 V
1.4 V to 1.6 V
1.65 V to 1.95 V
2.3 V to 2.7 V
3 V to 3.6 V
1.2 V
IOH
High-level output current
Low-level output current
mA
mA
1.4 V to 1.6 V
1.65 V to 1.95 V
2.3 V to 2.7 V
3 V to 3.6 V
6
IOL
8
9
12
5
∆t/∆v
Input transition rise or fall rate
Operating free-air temperature
ns/V
TA
–40
85
°C
(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. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
4
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SN74AVC8T245
8-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES517H–DECEMBER 2003–REVISED FEBRUARY 2007
Electrical Characteristics(1)(2)
over recommended operating free-air temperature range (unless otherwise noted)
TA = 25°C
–40°C to 85°C
PARAMETER
TEST CONDITIONS
IOH = –100 µA
VCCA
VCCB
UNIT
MIN
TYP
MAX
MIN
MAX
1.2 V to 3.6 V
1.2 V
1.2 V to 3.6 V
1.2 V
VCCO – 0.2
IOH = –3 mA
IOH = –6 mA
IOH = –8 mA
IOH = –9 mA
IOH = –12 mA
IOL = 100 µA
IOL = 3 mA
0.95
0.15
1.4 V
1.4 V
1.05
1.2
VOH
VI = VIH
V
1.65 V
2.3 V
1.65 V
2.3 V
1.75
2.3
3 V
3 V
1.2 V to 3.6 V
1.2 V
1.2 V to 3.6 V
1.2 V
0.2
IOL = 6 mA
1.4 V
1.4 V
0.35
0.45
0.55
0.7
VOL
VI = VIL
V
IOL = 8 mA
1.65 V
2.3 V
1.65 V
2.3 V
IOL = 9 mA
IOL = 12 mA
3 V
3 V
Control
inputs
II
VI = VCCA or GND
1.2 V to 3.6 V
1.2 V to 3.6 V
±0.025 ±0.25
±1
µA
µA
0 V
0 V to 3.6 V
0 V
±0.1
±0.1
±1
±1
±5
±5
A or B
port
Ioff
VI or VO = 0 to 3.6 V
0 V to 3.6 V
VO = VCCO or GND,
VI = VCCI or GND,
OE = VIH
A or B
port
(3)
IOZ
3.6 V
3.6 V
±0.5
±2.5
±5
µA
µA
1.2 V to 3.6 V
0 V
1.2 V to 3.6 V
3.6 V
15
–2
15
15
15
–2
ICCA
VI = VCCI or GND, IO = 0
VI = VCCI or GND, IO = 0
3.6 V
0 V
1.2 V to 3.6 V
0 V
1.2 V to 3.6 V
3.6 V
ICCB
µA
µA
3.6 V
0 V
I<Subscript>C
CA</Subscript
> +
I<Subscript>C
CB</Subscript
>
VI = VCCI or GND, IO = 0
1.2 V to 3.6 V
1.2 V to 3.6 V
25
Control
inputs
Ci
VI = 3.3 V or GND
VO = 3.3 V or GND
3.3 V
3.3 V
3.3 V
3.3 V
3.5
6
4.5
7
pF
pF
A or B
port
Cio
(1) VCCO is the VCC associated with the output port.
(2) VCCI is the VCC associated with the input port.
(3) For I/O ports, the parameter IOZ includes the input leakage current.
5
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SN74AVC8T245
8-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES517H–DECEMBER 2003–REVISED FEBRUARY 2007
www.ti.com
Switching Characteristics
over recommended operating free-air temperature range, VCCA = 1.2 V (see Figure 10)
VCCB = 1.2 V
VCCB = 1.5 V
VCCB = 1.8 V
VCCB = 2.5 V
VCCB = 3.3 V
FROM
(INPUT)
TO
(OUTPUT)
PARAMETER
UNIT
ns
TYP
3.1
3.1
3.1
3.1
5.3
5.3
5.1
5.1
4.8
4.8
4.7
4.7
TYP
2.6
2.6
2.7
2.7
5.3
5.3
4
TYP
2.5
2.5
2.5
2.5
5.3
5.3
3.5
3.5
4.8
4.8
4.1
4.1
TYP
3
TYP
3.5
3.5
2.3
2.3
5.3
5.3
3.1
3.1
4.8
4.8
5.1
5.1
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
A
B
A
A
B
A
B
3
2.4
2.4
5.3
5.3
3.2
3.2
4.8
4.8
4.3
4.3
B
ns
OE
OE
OE
OE
ns
ns
4
4.8
4.8
4
ns
ns
4
Switching Characteristics
over recommended operating free-air temperature range, VCCA = 1.5 V ± 0.1 V (see Figure 10)
VCCB = 1.5 V
VCCB = 1.8 V
± 0.15 V
VCCB = 2.5 V VCCB = 3.3 V
± 0.2 V ± 0.3 V
VCCB = 1.2 V
FROM
(INPUT)
TO
(OUTPUT)
± 0.1 V
PARAMETER
UNIT
TYP
2.7
2.7
2.6
2.6
3.7
3.7
4.8
4.8
3.1
3.1
4.1
4.1
MIN
0.5
0.5
0.5
0.5
1.1
1.1
1.1
1.1
0.5
0.5
0.5
0.5
MAX
5.4
5.4
5.4
5.4
8.7
8.7
7.6
7.6
8.6
8.6
8.4
8.4
MIN
0.5
0.5
0.5
0.5
1.1
1.1
1.1
1.1
0.5
0.5
0.5
0.5
MAX
4.6
4.6
5.1
5.1
8.7
8.7
7.1
7.1
8.6
8.6
7.6
7.6
MIN MAX MIN MAX
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
0.5
0.5
0.5
0.5
1.1
1.1
1
4.9
4.9
4.7
4.7
8.7
8.7
5.6
5.6
8.6
8.6
7.2
7.2
0.5
0.5
0.5
0.5
1.1
1.1
1
6.8
6.8
4.5
4.5
8.7
8.7
5.2
5.2
8.6
8.6
7.8
7.8
A
B
A
A
B
A
B
ns
ns
ns
ns
ns
ns
B
OE
OE
OE
OE
1
1
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
6
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SN74AVC8T245
8-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES517H–DECEMBER 2003–REVISED FEBRUARY 2007
Switching Characteristics
over recommended operating free-air temperature range, VCCA = 1.8 V ± 0.15 V (see Figure 10)
VCCB = 1.5 V VCCB = 1.8 V VCCB = 2.5 V
VCCB = 3.3 V
VCCB = 1.2 V
FROM
(INPUT)
TO
(OUTPUT)
± 0.1 V
± 0.15 V
± 0.2 V
± 0.3 V
PARAMETER
UNIT
TYP
2.5
2.5
2.5
2.5
3
MIN MAX MIN
MAX
MIN MAX
MIN
0.5
0.5
0.5
0.5
1
MAX
3.9
3.9
3.7
3.7
6.8
6.8
4.5
4.5
7.1
7.1
5.8
5.8
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
0.5
0.5
0.5
0.5
1
5.1
5.1
4.6
4.6
6.8
6.8
8.2
8.2
7.1
7.1
7.8
7.8
0.5
0.5
0.5
0.5
1
4.4
4.4
4.4
4.4
6.8
6.8
6.7
6.7
7.1
7.1
6.9
6.9
0.5
0.5
0.5
0.5
1
4
4
A
B
A
A
B
A
B
ns
ns
ns
ns
ns
ns
3.9
3.9
6.8
6.8
5.1
5.1
7.1
7.1
6
B
OE
OE
OE
OE
3
1
1
1
1
4.6
4.6
2.8
2.8
3.9
3.9
1.1
1.1
0.5
0.5
0.5
0.5
1
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
1
0.5
0.5
0.5
0.5
6
Switching Characteristics
over recommended operating free-air temperature range, VCCA = 2.5 V ± 0.2 V (see Figure 10)
VCCB = 1.5 V
VCCB = 1.8 V
± 0.15 V
VCCB = 2.5 V
VCCB = 3.3 V
VCCB = 1.2 V
FROM
(INPUT)
TO
(OUTPUT)
± 0.1 V
± 0.2 V
± 0.3 V
PARAMETER
UNIT
TYP
2.4
2.4
3
MIN
0.5
0.5
0.5
0.5
0.5
0.5
1.1
1.1
0.5
0.5
0.5
0.5
MAX
4.7
4.7
4.9
4.9
4.8
4.8
7.9
7.9
5.1
5.1
7.1
7.1
MIN
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
MAX
3.9
3.9
4
MIN MAX
MIN
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
MAX
2.8
2.8
2.9
2.9
4.8
4.8
4
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
3.1
3.1
3.1
3.1
4.8
4.8
4.6
4.6
5.1
5.1
5.1
5.1
A
B
A
A
B
A
B
ns
ns
ns
ns
ns
ns
B
3
4
2.2
2.2
4.5
4.5
1.8
1.8
3.6
3.6
4.8
4.8
6.4
6.4
5.1
5.1
6.3
6.3
OE
OE
OE
OE
4
5.1
5.1
3.9
3.9
7
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SN74AVC8T245
8-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES517H–DECEMBER 2003–REVISED FEBRUARY 2007
www.ti.com
Switching Characteristics
over recommended operating free-air temperature range, VCCA = 3.3 V ± 0.3 V (see Figure 10)
VCCB = 1.5 V
VCCB = 1.8 V
± 0.15 V
VCCB = 2.5 V
VCCB = 3.3 V
± 0.3 V
VCCB = 1.2 V
FROM
(INPUT)
TO
(OUTPUT)
± 0.1 V
± 0.2 V
PARAMETER
UNIT
TYP
2.3
2.3
3.5
3.5
2
MIN
0.5
0.5
0.5
0.5
0.5
0.5
1.1
1.1
0.5
0.5
0.5
0.5
MAX
4.5
4.5
6.8
6.8
4
MIN
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
MAX
3.7
3.3
3.9
3.9
4
MIN MAX
MIN MAX
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
2.9
2.9
2.8
2.8
4
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
2.5
2.5
2.5
2.5
4
A
B
A
A
B
A
B
ns
ns
ns
ns
ns
ns
B
OE
OE
OE
OE
2
4
4
4
4
4.5
4.5
1.7
1.7
3.4
3.4
7.8
7.8
4
6.2
6.2
4
4.5
4.5
4
3.9
3.9
4
4
4
4
4
6.9
6.9
6
4.8
4.8
4.2
4.2
6
Operating Characteristics
TA = 25°C
VCCA
=
VCCA
=
VCCA
=
VCCA
=
VCCA =
TEST
CONDITIONS
VCCB = 1.2 V VCCB = 1.5 V VCCB = 1.8 V VCCB = 2.5 V VCCB = 3.3 V
PARAMETER
UNIT
TYP
TYP
TYP
TYP
TYP
Outputs
enabled
1
1
1
1
1
A to B
B to A
A to B
B to A
Outputs
disabled
1
12
1
1
12
1
1
12
1
1
13
1
1
14
1
CL = 0,
f = 10 MHz,
tr = tf = 1 ns
(1)
CpdA
pF
Outputs
enabled
Outputs
disabled
Outputs
enabled
12
1
12
1
12
1
13
1
14
1
Outputs
disabled
CL = 0,
f = 10 MHz,
tr = tf = 1 ns
(1)
CpdB
pF
Outputs
enabled
1
1
1
1
1
Outputs
disabled
1
1
1
1
1
(1) Power dissipation capacitance per transceiver
Table 1. Typical Total Static Power Consumption (ICCA + ICCB
)
VCCA
VCCB
UNIT
0 V
0
1.2 V
<0.5
<1
1.5 V
<0.5
<1
1.8 V
<0.5
<1
2.5 V
<0.5
<1
3.3 V
<0.5
1
0 V
1.2 V
1.5 V
1.8 V
2.5 V
3.3 V
<0.5
<0.5
<0.5
<0.5
<0.5
<1
<1
<1
<1
1
µA
<1
<1
<1
<1
<1
1
<1
<1
<1
<1
1
<1
<1
<1
<1
8
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SN74AVC8T245
8-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES517H–DECEMBER 2003–REVISED FEBRUARY 2007
TYPICAL CHARACTERISTICS
Typical Propagation Delay (A to B) vs Load Capacitance
TA = 25°C, VCCA = 1.2 V
6
5
4
3
2
1
0
V
= 1.2 V
= 1.5 V
= 1.8 V
CCB
V
V
CCB
CCB
V
V
= 2.5 V
= 3.3 V
CCB
CCB
0
10
20
30
C − pF
40
50
60
L
Figure 1.
Typical Propagation Delay (A to B) vs Load Capacitance
TA = 25°C, VCCA = 1.5 V
6
5
4
3
2
1
0
6
5
4
3
2
1
0
V
V
= 1.2 V
= 1.5 V
= 1.8 V
V
V
= 1.2 V
= 1.5 V
= 1.8 V
CCB
CCB
CCB
CCB
CCB
CCB
V
V
V
V
= 2.5 V
= 3.3 V
V
V
= 2.5 V
= 3.3 V
CCB
CCB
CCB
CCB
10
20
30
40
50
60
0
10
20
30
40
50
60
0
C − pF
L
C − pF
L
Figure 2.
Figure 3.
9
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SN74AVC8T245
8-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES517H–DECEMBER 2003–REVISED FEBRUARY 2007
www.ti.com
TYPICAL CHARACTERISTICS (continued)
Typical Propagation Delay (A to B) vs Load Capacitance
TA = 25°C, VCCA = 1.8 V
6
5
4
3
2
1
0
6
5
4
V
V
= 1.2 V
= 1.5 V
= 1.8 V
V
V
= 1.2 V
= 1.5 V
= 1.8 V
CCB
CCB
CCB
CCB
CCB
CCB
V
V
V
V
= 2.5 V
= 3.3 V
V
V
= 2.5 V
= 3.3 V
CCB
CCB
CCB
CCB
3
2
1
0
10
20
30
− pF
40
50
60
0
10
20
30
40
50
60
0
C
L
C
L
− pF
Figure 4.
Figure 5.
Typical Propagation Delay (A to B) vs Load Capacitance
TA = 25°C, VCCA = 2.5 V
6
5
4
3
2
1
0
6
5
4
3
2
1
0
V
= 1.2 V
V
V
= 1.2 V
= 1.5 V
= 1.8 V
CCB
CCB
V
= 1.5 V
= 1.8 V
CCB
CCB
CCB
CCB
V
V
V
V
= 2.5 V
= 3.3 V
V
V
= 2.5 V
= 3.3 V
CCB
CCB
CCB
CCB
10
20
30
40
50
60
0
10
20
30
40
50
60
0
C
L
− pF
C − pF
L
Figure 6.
Figure 7.
10
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SN74AVC8T245
8-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES517H–DECEMBER 2003–REVISED FEBRUARY 2007
TYPICAL CHARACTERISTICS (continued)
Typical Propagation Delay (A to B) vs Load Capacitance
TA = 25°C, VCCA = 3.3 V
6
5
4
3
2
1
0
6
5
4
3
2
1
0
V
= 1.2 V
= 1.5 V
= 1.8 V
CCB
V
= 1.2 V
= 1.5 V
= 1.8 V
CCB
V
V
CCB
V
V
CCB
CCB
CCB
V
V
= 2.5 V
= 3.3 V
CCB
V
V
= 2.5 V
= 3.3 V
CCB
CCB
CCB
10
20
30
40
50
60
0
10
20
30
− pF
40
50
60
0
C
L
− pF
C
L
Figure 8.
Figure 9.
11
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SN74AVC8T245
8-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES517H–DECEMBER 2003–REVISED FEBRUARY 2007
www.ti.com
PARAMETER MEASUREMENT INFORMATION
2 × V
CCO
TEST
S1
S1
R
L
Open
GND
t
Open
pd
From Output
Under Test
t
t
/t
/t
2 × V
CCO
GND
PLZ PZL
PHZ PZH
C
L
R
L
(see Note A)
t
w
LOAD CIRCUIT
V
CCI
V
CCI
/2
V
CCI
/2
Input
C
L
V
TP
R
L
V
CCO
0 V
1.2 V
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
15 pF
15 pF
15 pF
15 pF
15 pF
VOLTAGE WAVEFORMS
PULSE DURATION
1.5 V ± 0.1 V
1.8 V ± 0.15 V
2.5 V ± 0.2 V
3.3 V ± 0.3 V
V
CCA
Output
Control
(low-level
enabling)
V /2
CCA
V
CCA
/2
t
0 V
t
PZL
PLZ
V
V
CCO
Output
Waveform 1
V
CCI
V
/2
/2
CCO
Input
V
CCI
/2
V
CCI
/2
V
+ V
OL
TP
S1 at 2 × V
CCO
OL
0 V
(see Note B)
t
t
PZH
PHZ
t
t
PHL
PLH
Output
Waveform 2
S1 at GND
V
OH
V
OH
V
OH
− V
TP
V
CCO
Output
V /2
CCO
V
CCO
/2
(see Note B)
0 V
V
OL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
NOTES: A. C includes probe and jig capacitance.
L
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, Z = 50 Ω, dv/dt ≥ 1 V/ns.
O
D. The outputs are measured one at a time, with one transition per measurement.
E.
F.
G.
H.
I.
t
t
t
V
V
and t
and t
and t
are the same as t
.
dis
.
PLZ
PZL
PLH
PHZ
are the same as t
PZH
en
are the same as t .
pd
PHL
is the V associated with the input port.
CC
CCI
is the V associated with the output port.
CCO
CC
Figure 10. Load Circuit and Voltage Waveforms
12
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PACKAGE OPTION ADDENDUM
www.ti.com
26-Mar-2010
PACKAGING INFORMATION
Orderable Device
74AVC8T245DGVRE4
74AVC8T245DGVRG4
74AVC8T245RHLRG4
SN74AVC8T245DGVR
SN74AVC8T245PW
Status (1)
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
Drawing
TVSOP
DGV
24
24
24
24
24
24
24
24
24
24
24
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
TVSOP
QFN
DGV
RHL
DGV
PW
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
1000 Green (RoHS & CU NIPDAU Level-2-260C-1 YEAR
no Sb/Br)
TVSOP
TSSOP
TSSOP
TSSOP
TSSOP
TSSOP
TSSOP
QFN
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
60 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SN74AVC8T245PWE4
SN74AVC8T245PWG4
SN74AVC8T245PWR
SN74AVC8T245PWRE4
SN74AVC8T245PWRG4
SN74AVC8T245RHLR
PW
60 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
PW
60 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
PW
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
PW
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
PW
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
RHL
1000 Green (RoHS & CU NIPDAU Level-2-260C-1 YEAR
no Sb/Br)
(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
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
26-Mar-2010
to Customer on an annual basis.
OTHER QUALIFIED VERSIONS OF SN74AVC8T245 :
Automotive: SN74AVC8T245-Q1
•
NOTE: Qualified Version Definitions:
Automotive - Q100 devices qualified for high-reliability automotive applications targeting zero defects
•
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
30-Jul-2010
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
B0
K0
P1
W
Pin1
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant
(mm) W1 (mm)
SN74AVC8T245DGVR TVSOP
DGV
PW
24
24
24
2000
2000
1000
330.0
330.0
180.0
12.4
16.4
12.4
6.9
6.95
3.8
5.6
8.3
5.8
1.6
1.6
1.2
8.0
8.0
8.0
12.0
16.0
12.0
Q1
Q1
Q1
SN74AVC8T245PWR
SN74AVC8T245RHLR
TSSOP
QFN
RHL
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
30-Jul-2010
*All dimensions are nominal
Device
Package Type Package Drawing Pins
SPQ
Length (mm) Width (mm) Height (mm)
SN74AVC8T245DGVR
SN74AVC8T245PWR
SN74AVC8T245RHLR
TVSOP
TSSOP
QFN
DGV
PW
24
24
24
2000
2000
1000
346.0
346.0
190.5
346.0
346.0
212.7
29.0
33.0
31.8
RHL
Pack Materials-Page 2
MECHANICAL DATA
MPDS006C – FEBRUARY 1996 – REVISED AUGUST 2000
DGV (R-PDSO-G**)
PLASTIC SMALL-OUTLINE
24 PINS SHOWN
0,23
0,13
M
0,07
0,40
24
13
0,16 NOM
4,50
4,30
6,60
6,20
Gage Plane
0,25
0°–ā8°
0,75
1
12
0,50
A
Seating Plane
0,08
0,15
0,05
1,20 MAX
PINS **
14
16
20
24
38
48
56
DIM
A MAX
A MIN
3,70
3,50
3,70
3,50
5,10
4,90
5,10
4,90
7,90
7,70
9,80
9,60
11,40
11,20
4073251/E 08/00
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion, not to exceed 0,15 per side.
D. Falls within JEDEC: 24/48 Pins – MO-153
14/16/20/56 Pins – MO-194
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MECHANICAL DATA
MTSS001C – JANUARY 1995 – REVISED FEBRUARY 1999
PW (R-PDSO-G**)
PLASTIC SMALL-OUTLINE PACKAGE
14 PINS SHOWN
0,30
0,19
M
0,10
0,65
14
8
0,15 NOM
4,50
4,30
6,60
6,20
Gage Plane
0,25
1
7
0°–8°
A
0,75
0,50
Seating Plane
0,10
0,15
0,05
1,20 MAX
PINS **
8
14
16
20
24
28
DIM
3,10
2,90
5,10
4,90
5,10
4,90
6,60
6,40
7,90
9,80
9,60
A MAX
A MIN
7,70
4040064/F 01/97
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion not to exceed 0,15.
D. Falls within JEDEC MO-153
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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