SCES692D June   2008  – February 2016 SN74AVC2T245

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics
    6. 6.6  Switching Characteristics: VCCA = 1.2 V
    7. 6.7  Switching Characteristics: VCCA = 1.5 V ± 0.1 V
    8. 6.8  Switching Characteristics: VCCA = 1.8 V ± 0.15 V
    9. 6.9  Switching Characteristics: VCCA = 2.5 V ± 0.2 V
    10. 6.10 Switching Characteristics: VCCA = 3.3 V ± 0.3 V
    11. 6.11 Operating Characteristics
    12. 6.12 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.2 V to 3.6 V Power-Supply Range
      2. 8.3.2 Partial-Power-Down Mode Operation
      3. 8.3.3 VCC Isolation
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Enable Times
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Input Voltage Ranges
        2. 9.2.2.2 Output Voltage Range
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Community Resources
    2. 12.2 Trademarks
    3. 12.3 Electrostatic Discharge Caution
    4. 12.4 Glossary
  13. 13Mechanical, Packaging, and Orderable Information
    1. 13.1 Package Option Addendum
      1. 13.1.1 Packaging Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

6 Specifications

6.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)(1)
MIN MAX UNIT
VCCA
VCCB 		Supply voltage –0.5 4.6 V
VI Input voltage(2) I/O ports (A port) –0.5 4.6 V
I/O ports (B port) –0.5 4.6
Control inputs –0.5 4.6
VO Voltage applied to any output in the high-impedance or power-off state(2) A port –0.5 4.6 V
B port –0.5 4.6
VO Voltage applied to any output in the high or low state(2) (3) A port –0.5 VCCA + 0.5 V
B port –0.5 VCCB + 0.5
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
TJ Junction Temperature -40 150 °C
Tstg Storage temperature range –65 150 °C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. 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.

6.2 ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) 5000 V
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) 1500
(1) JEDEC document JEP155 states that 500 V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250 V CDM allows safe manufacturing with a standard ESD control process.

6.3 Recommended Operating Conditions(1) (2) (3)

VCCI VCCO MIN MAX UNIT
VCCA Supply voltage 1.2 3.6 V
VCCB Supply voltage 1.2 3.6 V
VIH High-level
input voltage		 Data inputs(1) 1.2 V to 1.95 V VCCI × 0.65 V
1.95 V to 2.7 V 1.6
2.7 V to 3.6 V 2
VIL Low-level
input voltage		 Data inputs(1) 1.2 V to 1.95 V VCCI × 0.35 V
1.95 V to 2.7 V 0.7
2.7 V to 3.6 V 0.8
VIH High-level
input voltage		 DIR
(referenced to VCCA)(2) 		1.2 V to 1.95 V VCCA × 0.65 V
1.95 V to 2.7 V 1.6
2.7 V to 3.6 V 2
VIL Low-level
input voltage		 DIR
(referenced to VCCA)(2) 		1.2 V to 1.95 V VCCA × 0.35 V
1.95 V to 2.7 V 0.7
2.7 V to 3.6 V 0.8
VI Input voltage 0 3.6 V
VO Output voltage Active state 0 VCCO V
3-state 0 3.6
IOH High-level output current 1.1 V to 1.2 V –3 mA
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
IOL Low-level output current 1.1 V to 1.2 V 3 mA
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
Δt/Δv Input transition rise or fall rate 5 ns/V
TA Operating free-air temperature –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.

6.4 Thermal Information

THERMAL METRIC(1) SN74AVC2T245 UNIT
RSW (UQFN)
10 PINS
RθJA Junction-to-ambient thermal resistance 109.1 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 57.9 °C/W
RθJB Junction-to-board thermal resistance 57.0 °C/W
ψJT Junction-to-top characterization parameter 2.7 °C/W
ψJB Junction-to-board characterization parameter 57.0 °C/W
RθJC(bot) Junction-to-case (bottom) thermal resistance 18.4 °C/W
(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 recommended operating free-air temperature range (unless otherwise noted)(1)(2)
PARAMETER TEST CONDITIONS VCCA VCCB TA = 25°C –40°C to 85°C UNIT
MIN TYP MAX MIN MAX
VOH IOH = –100 μA VI = VIH 1.2 V to 3.6 V 1.2 V to 3.6 V VCCO  – 0.2 V
IOH = –3 mA 1.2 V 1.2 V 0.95
IOH = –6 mA 1.4 V 1.4 V 1.05
IOH = –8 mA 1.65 V 1.65 V 1.2
IOH = –9 mA 2.3 V 2.3 V 1.75
IOH = –12 mA 3 V 3 V 2.3
VOL IOL = 100 μA VI = VIL 1.2 V to 3.6 V 1.2 V to 3.6 V 0.2 V
IOL = 3 mA 1.2 V 1.2 V 0.25
IOL = 6 mA 1.4 V 1.4 V 0.35
IOL = 8 mA 1.65 V 1.65 V 0.45
IOL = 9 mA 2.3 V 2.3 V 0.55
IOL = 12 mA 3 V 3 V 0.7
II Control inputs VI = VCCA or GND 1.2 V to 3.6 V 1.2 V to 3.6 V ±0.025 ±0.25 ±1 μA
Ioff A or B port VI or VO = 0 to 3.6 V 0 V 0 V to 3.6 V ±0.1 ±1 ±5 μA
0 V to 3.6 V 0 V ±0.1 ±1 ±5
IOZ A or B port VO = VCCO or GND,
VI = VCCI or GND, OE = VIH 		3.6 V 3.6 V ±0.5 ±2.5 ±5 μA
ICCA VI = VCCI or GND, IO = 0 1.2 V to 3.6 V 1.2 V to 3.6 V 8 μA
0 V 0 V to 3.6 V –2
0 V to 3.6 V 0 V 8
ICCB VI = VCCI or GND, IO = 0 1.2 V to 3.6 V 1.2 V to 3.6 V 8 μA
0 V 0 V to 3.6 V 8
0 V to 3.6 V 0 V –2
ICCA + ICCB VI = VCCI or GND, IO = 0 1.2 V to 3.6 V 1.2 V to 3.6 V 16 μA
Ci Control inputs VI = 3.3 V or GND 3.3 V 3.3 V 3.5 4.5 pF
Cio A or B port VO = 3.3 V or GND 3.3 V 3.3 V 6 7 pF
(1) VCCO is the VCC associated with the output port.
(2) VCCI is the VCC associated with the input port.

6.6 Switching Characteristics: VCCA = 1.2 V

over recommended operating free-air temperature range, VCCA = 1.2 V (unless otherwise noted) (see Figure 3)
PARAMETER FROM
(INPUT)		 TO
(OUTPUT)		 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		 UNIT
TYP TYP TYP TYP TYP
tPLH A B 2.5 2.1 1.9 1.9 1.9 ns
tPHL 2.5 2.1 1.9 1.9 1.9
tPLH B A 2.5 2.2 2 1.8 1.7 ns
tPHL 2.5 2.2 2 1.8 1.7
tPZH OE A 3.8 3.1 2.7 2.6 3 ns
tPZL 3.8 3.1 2.7 2.6 3
tPZH OE B 3.7 3.7 3.7 3.7 3.7 ns
tPZL 3.7 3.7 3.7 3.7 3.7
tPHZ OE A 4.4 3.6 3.5 3.3 4.1 ns
tPLZ 4.4 3.6 3.5 3.3 4.1
tPHZ OE B 4.2 4.2 4.3 4.1 4.2 ns
tPLZ 4.2 4.2 4.3 4.1 4.2

6.7 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 3)
PARAMETER FROM
(INPUT)		 TO
(OUTPUT)		 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		 UNIT
TYP MIN MAX MIN MAX MIN MAX MIN MAX
tPLH A B 2.2 0.3 4.4 0.2 3.9 0.1 3.6 0.1 3.9 ns
tPHL 2.2 0.3 4.4 0.2 3.9 0.1 3.6 0.1 3.9
tPLH B A 2 0.6 5.1 0.4 4.9 0.2 4.6 0.1 4.5 ns
tPHL 2 0.6 5.1 0.4 4.9 0.2 4.6 0.1 4.5
tPZH OE A 3.4 1.1 7.1 0.9 6.2 0.7 5.5 0.1 6.4 ns
tPZL 3.4 1.1 7.1 0.9 6.2 0.7 5.5 0.1 6.4
tPZH OE B 2.5 1.1 8.2 1.1 8.2 1.1 8.2 1.1 8.2 ns
tPZL 2.5 1.1 8.2 1.1 8.2 1.1 8.2 1.1 8.2
tPHZ OE A 4.1 1.2 7.1 0.8 6.7 0.4 5.6 1 74 ns
tPLZ 4.1 1.2 7.1 0.8 6.7 0.4 5.6 1 7.4
tPHZ OE B 3.3 0.3 7.4 0.2 5.7 0.3 5.6 0.3 5.6 ns
tPLZ 3.3 0.3 7.4 0.2 5.7 0.3 5.6 0.3 5.6

6.8 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 3)
PARAMETER FROM
(INPUT)		 TO
(OUTPUT)		 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		 UNIT
TYP MIN MAX MIN MAX MIN MAX MIN MAX
tPLH A B 2 0.1 4.1 0.1 3.6 0.1 3.1 0.1 3.3 ns
tPHL 2 0.1 4.1 0.1 3.6 0.1 3.1 0.1 3.3
tPLH B A 1.9 0.4 4.3 0.1 4.1 0.1 3.8 0.1 3.7 ns
tPHL 1.9 0.4 4.3 0.1 4.1 0.1 3.8 0.1 3.7
tPZH OE A 3.2 0.8 6.7 0.4 5.8 0.4 4.8 0.3 4.6 ns
tPZL 3.2 0.8 6.7 0.4 5.8 0.4 4.8 0.3 4.6
tPZH OE B 1.9 0.2 6.7 0.2 6.6 0.2 6.7 0.2 6.7 ns
tPZL 1.9 0.2 6.7 0.2 6.6 0.2 6.7 0.2 6.7
tPHZ OE A 3.8 0.7 6.2 0.3 6.5 0.1 5.2 0.8 6.5 ns
tPLZ 3.8 0.7 6.2 0.3 6.5 0.1 5.2 0.8 6.5
tPHZ OE B 3.4 0.1 6.8 0.1 6.8 0.1 6.7 0.1 6.7 ns
tPLZ 3.4 0.1 6.8 0.1 6.8 0.1 6.7 0.1 6.7

6.9 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 3)
PARAMETER FROM
(INPUT)		 TO
(OUTPUT)		 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		 UNIT
TYP MIN MAX MIN MAX MIN MAX MIN MAX
tPLH A B 1.9 0.1 3.8 0.1 3.2 0.1 2.7 0.1 2.6 ns
tPHL 1.9 0.1 3.8 0.1 3.2 0.1 2.7 0.1 2.6
tPLH B A 1.8 0.5 3.4 0.2 3.1 0.1 2.8 0.1 2.6 ns
tPHL 1.8 0.5 3.4 0.2 3.1 0.1 2.8 0.1 2.6
tPZH OE A 3.1 0.7 6.2 0.5 5.2 0.3 4.1 0.3 3.6 ns
tPZL 3.1 0.7 6.2 0.5 5.2 0.3 4.1 0.3 3.6
tPZH OE B 1.4 0.4 4.5 0.4 4.5 0.4 4.5 0.4 4.5 ns
tPZL 1.4 0.4 4.5 0.4 4.5 0.4 4.5 0.4 4.5
tPHZ OE A 3.6 0.2 5.2 0.1 5.4 0.1 4.5 0.7 6 ns
tPLZ 3.6 0.2 5.2 0.1 5.4 0.1 4.5 0.7 6
tPHZ OE B 2.1 0.1 4.7 0.1 4.6 0.1 4.7 0.1 4.7 ns
tPLZ 2.1 0.1 4.7 0.1 4.6 0.1 4.7 0.1 4.7

6.10 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 3)
PARAMETER FROM
(INPUT)		 TO
(OUTPUT)		 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		 UNIT
TYP MIN MAX MIN MAX MIN MAX MIN MAX
tPLH A B 1.8 0.1 3.6 0.1 3 0.1 2.6 0.1 2.4 ns
tPHL 1.8 0.1 3.6 0.1 3 0.1 2.6 0.1 2.4
tPLH B A 1.9 0.5 3.4 0.2 2.9 0.1 2.5 0.1 2.3 ns
tPHL 1.9 0.5 3.4 0.2 2.9 0.1 2.5 0.1 2.3
tPZH OE A 3.1 0.9 5.9 0.5 5 0.3 3.8 0.3 3.3 ns
tPZL 3.1 0.9 5.9 0.5 5 0.3 3.8 0.3 3.3
tPZH OE B 1.2 0.4 3.6 0.4 3.6 0.4 3.6 0.4 3.6 ns
tPZL 1.2 0.4 3.6 0.4 3.6 0.4 3.6 0.4 3.6
tPHZ OE A 3.4 0.1 4.6 0.1 4.7 0.3 4.8 0.7 4.5 ns
tPLZ 3.4 0.1 4.6 0.1 4.7 0.3 4.8 0.7 4.5
tPHZ OE B 2.9 0.1 5.4 0.1 5.3 0.1 5.3 0.1 5.3 ns
tPLZ 2.9 0.1 5.4 0.1 5.3 0.1 5.3 0.1 5.3

6.11 Operating Characteristics

TA = 25°C
PARAMETER TEST
CONDITIONS		 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		 UNIT
TYP TYP TYP TYP TYP
CpdA (1) A to B Outputs
enabled		 CL = 0,
f = 10 MHz,
tr = tf = 1 ns		 3 3 3 3 4 pF
Outputs
disabled		 1 1 1 2 2
B to A Outputs
enabled		 12 13 13 15 15
Outputs
disabled		 1 2 2 2 2
CpdB (1) A to B Outputs
enabled		 CL = 0,
f = 10 MHz,
tr = tf = 1 ns		 12 13 13 14 16 pF
Outputs
disabled		 1 2 2 2 2
B to A Outputs
enabled		 3 3 3 4 4
Outputs
disabled		 1 1 1 2 2
(1) Power dissipation capacitance per transceiver. Refer to the TI application report, CMOS Power Consumption and Cpd Calculation, SCAA035

6.12 Typical Characteristics

SN74AVC2T245 G001_sces584.gif
Figure 1. VOL Voltage vs IOL Current
SN74AVC2T245 G002_sces584.gif
Figure 2. VOH Voltage vs IOH Current