SCES531L December   2003  – May 2017 SN74AVC2T45

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
      1. 6.12.1 Typical Propagation Delay (A to B) vs Load Capacitance, TA = 25°C, VCCA = 1.2 V
      2. 6.12.2 Typical Propagation Delay (A to B) vs Load Capacitance, TA = 25°C, VCCA = 1.5 V
      3. 6.12.3 Typical Propagation Delay (A-to-B) vs Load Capacitance, TA = 25°C, VCCA = 1.8 V
      4. 6.12.4 Typical Propagation Delay (A to B) vs Load Capacitance, TA = 25°C, VCCA = 2.5 V
      5. 6.12.5 Typical Propagation Delay (A to B) vs Load Capacitance, TA = 25°C, VCCA = 3.3 V
  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 VCC Isolation
      2. 8.3.2 2-Rail Design
      3. 8.3.3 IO Ports are 4.6-V Tolerant
      4. 8.3.4 Partial-Power-Down Mode
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Unidirectional Logic Level-Shifting Application
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curve
      2. 9.2.2 Bidirectional Logic Level-Shifting Application
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
          1. 9.2.2.2.1 Enable Times
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Community Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DCU|8
  • YZP|8
  • DCT|8
Thermal pad, mechanical data (Package|Pins)
Orderable Information

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) IO ports (A port) –0.5 4.6 V
IO 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 150 °C
Tstg Storage temperature –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 negative-voltage and output 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 ratings are observed.

6.2 ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±8000 V
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) ±1000
Machine Model (MM), Per JEDEC specification JESD22-A115-A ±200
(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

See(3)(4)(5)
VCCI (1) VCCO (2) 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(4) 1.2 V to 1.95 V VCCI (1) × 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(4) 1.2 V to 1.95 V VCCI (1) × 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)(5) 		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)(5) 		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 (2) V
3-state 0 3.6
IOH High-level output current 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 1.2 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 voltage associated with the input port supply VCCA or VCCB.
(2) VCCO is the voltage associated with the output port supply VCCA or VCCB.
(3) All unused data inputs of the device must be held at VCCI or GND to ensure proper device operation. See Implications of Slow or Floating CMOS Inputs, SCBA004.
(4) For VCCI values not specified in the data sheet, VIH min = VCCI × 0.7 V, VIL max = VCCI × 0.3 V.
(5) For VCCI values not specified in the data sheet, VIH min = VCCA × 0.7 V, VIL max = VCCA × 0.3 V.

6.4 Thermal Information

THERMAL METRIC(1) SN74AVC2T45 UNIT
DCT (SSOP) DCU (VSSOP) YZP (DSBGA)
8 PINS 8 PINS 8 PINS
RθJA Junction-to-ambient thermal resistance 194.4 199.3 105.8 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 124.7 76.2 1.6 °C/W
RθJB Junction-to-board thermal resistance 106.8 80.6 10.8 °C/W
ψJT Junction-to-top characterization parameter 49.8 7.1 3.1 °C/W
ψJB Junction-to-board characterization parameter 105.8 80.1 10.8 °C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report.

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 (3) IOH = –100 µA VI = VIH 1.2 V to 3.6 V 1.2 V to 3.6 V VCCO  – 0.2 V 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 (3) 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 DIR 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 port VI or VO = 0 to 3.6 V 0 V 0 to 3.6 V ±0.1 ±1 ±5 µA
B port 0 to 3.6 V 0 V ±0.1 ±1 ±5
IOZ (3) B port VO = VCCO or GND,
VI = VCCI or GND		 0 V 3.6 V ±0.5 ±2.5 ±5 µA
A port 3.6 V 0 V ±0.5 ±2.5 ±5
ICCA (3) VI = VCCI or GND, IO = 0 1.2 V to 3.6 V 1.2 V to 3.6 V 10 µA
0 V 3.6 V –2
3.6 V 0 V 10
ICCB (3) VI = VCCI or GND, IO = 0 1.2 V to 3.6 V 1.2 V to 3.6 V 10 µA
0 V 3.6 V 10
3.6 V 0 V –2
ICCA + ICCB
(see Table 1)		 VI = VCCI or GND, IO = 0 1.2 V to 3.6 V 1.2 V to 3.6 V 20 µA
CI Control
inputs		 VI = 3.3 V or GND 3.3 V 3.3 V 2.5 pF
Cio A or B
port		 VO = 3.3 V or GND 3.3 V 3.3 V 6 pF
(1) VCCO is the voltage associated with the output port supply VCCA or VCCB.
(2) VCCI is the voltage associated with the input port supply VCCA or VCCB.
(3) VOH: Output High Voltage; VOL: Output Low Voltage; IOZ: Hi-Z Output Current; ICCA: Supply A Current; ICCB: Supply B Current

6.6 Switching Characteristics: VCCA = 1.2 V

over recommended operating free-air temperature range, VCCA = 1.2 V (see Figure 11)
PARAMETER FROM
(INPUT)		 TO
(OUTPUT)		 VCCB = 1.2 V VCCB = 1.5 V VCCB = 1.8 V VCCB = 2.5 V VCCB = 3.3 V UNIT
TYP TYP TYP TYP TYP
tPLH (2) A B 3.1 2.6 2.4 2.2 2.2 ns
tPHL (2) 3.1 2.6 2.4 2.2 2.2
tPLH (2) B A 3.4 3.1 3 2.9 2.9 ns
tPHL (2) 3.4 3.1 3 2.9 2.9
tPHZ (2) DIR A 5.2 5.2 5.1 5 4.8 ns
tPLZ (2) 5.2 5.2 5.1 5 4.8
tPHZ (2) DIR B 5 4 3.8 2.8 3.2 ns
tPLZ (2) 5 4 3.8 2.8 3.2
tPZH (2) (1) DIR A 8.4 7.1 6.8 5.7 6.1 ns
tPZL (2) (1) 8.4 7.1 6.8 5.7 6.1
tPZH (2) (1) DIR B 8.3 7.8 7.5 7.2 7 ns
tPZL (2) (1) 8.3 7.8 7.5 7.2 7
(1) The enable time is a calculated value, derived using the formula shown in the Enable Times section.
(2) tPLH: Low-to-high Propagation Delay; tPHL: High-to-Low Propagation Delay; tPHZ: High-to-Hi-Z Propagation Delay; tPLZ: Low-to-Hi-Z Propagation Delay; tPZH: Hi-Z-to-High Propagation Delay; tPZL: Hi-Z-to-Low Propagation Delay

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 11)
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 (2) A B 2.8 0.7 5.4 0.5 4.6 0.4 3.7 0.3 3.5 ns
tPHL (2) 2.8 0.7 5.4 0.5 4.6 0.4 3.7 0.3 3.5
tPLH (2) B A 2.7 0.8 5.4 0.7 5.2 0.6 4.9 0.5 4.7 ns
tPHL (2) 2.7 0.8 5.4 0.7 5.2 0.6 4.9 0.5 4.7
tPHZ (2) DIR A 3.9 1.3 8.5 1.3 7.8 1.1 7.7 1.4 7.6 ns
tPLZ (2) 3.9 1.3 8.5 1.3 7.8 1.1 7.7 1.4 7.6
tPHZ (2) DIR B 4.7 1.1 7 1.4 6.9 1.2 6.9 1.7 7.1 ns
tPLZ (2) 4.7 1.1 7 1.4 6.9 1.2 6.9 1.7 7.1
tPZH (2) (1) DIR A 7.4 12.4 12.1 11.8 11.8 ns
tPZL (2) (1) 7.4 12.4 12.1 11.8 11.8
tPZH (2) (1) DIR B 6.7 13.9 12.4 11.4 11.1 ns
tPZL (2) (1) 6.7 13.9 12.4 11.4 11.1
(1) The enable time is a calculated value, derived using the formula shown in the Enable Times section.
(2) tPLH: Low-to-high Propagation Delay; tPHL: High-to-Low Propagation Delay; tPHZ: High-to-Hi-Z Propagation Delay; tPLZ: Low-to-Hi-Z Propagation Delay; tPZH: Hi-Z-to-High Propagation Delay; tPZL: Hi-Z-to-Low Propagation Delay

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 11)
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 (2) A B 2.7 0.5 5.2 0.4 4.3 0.2 3.4 0.2 3.1 ns
tPHL (2) 2.7 0.5 5.2 0.4 4.3 0.2 3.4 0.2 3.1
tPLH (2) B A 2.4 0.7 4.7 0.5 4.4 0.5 4 0.4 3.8 ns
tPHL (2) 2.4 0.7 4.7 0.5 4.4 0.5 4 0.4 3.8
tPHZ (2) DIR A 3.7 1.3 8.1 0.7 6.9 1.4 5.3 1.1 5.2 ns
tPLZ (2) 3.7 1.3 8.1 0.7 6.9 1.4 5.3 1.1 5.2
tPHZ (2) DIR B 4.4 1.3 5.8 1.3 5.9 0.8 5.7 1.5 5.9 ns
tPLZ (2) 4.4 1.3 5.8 1.3 5.9 0.8 5.7 1.5 5.9
tPZH (2) (1) DIR A 6.8 10.5 10.3 9.7 9.7 ns
tPZL (2) (1) 6.8 10.5 10.3 9.7 9.7
tPZH (2) (1) DIR B 6.4 13.3 11.2 8.7 8.3 ns
tPZL (2) (1) 6.4 13.3 11.2 8.7 8.3
(1) The enable time is a calculated value, derived using the formula shown in the Enable Times section.
(2) tPLH: Low-to-high Propagation Delay; tPHL: High-to-Low Propagation Delay; tPHZ: High-to-Hi-Z Propagation Delay; tPLZ: Low-to-Hi-Z Propagation Delay; tPZH: Hi-Z-to-High Propagation Delay; tPZL: Hi-Z-to-Low Propagation Delay

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 11)
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 (2) A B 2.6 0.4 4.9 0.2 4 0.2 3 0.2 2.6 ns
tPHL (2) 2.6 0.4 4.9 0.2 4 0.2 3 0.2 2.6
tPLH (2) B A 2.1 0.6 3.8 0.5 3.4 0.4 3 0.3 2.8 ns
tPHL (2) 2.1 0.6 3.8 0.5 3.4 0.4 3 0.3 2.8
tPHZ (2) DIR A 2.4 0.7 7.9 0.8 6.4 0.8 5 0.5 4.3 ns
tPLZ (2) 2.4 0.7 7.9 0.8 6.4 0.8 5 0.5 4.3
tPHZ (2) DIR B 3.8 1 4.3 0.6 4.3 0.5 4.2 1.1 4.1 ns
tPLZ (2) 3.8 1 4.3 0.6 4.3 0.5 4.2 1.1 4.1
tPZH (2) (1) DIR A 5.9 8.5 7.7 7.2 6.9 ns
tPZL (2) (1) 5.9 8.5 7.7 7.2 6.9
tPZH (2) (1) DIR B 5 12.8 10.4 8 6.9 ns
tPZL (2) (1) 5 12.8 10.4 8 6.9
(1) The enable time is a calculated value, derived using the formula shown in the Enable Times section.
(2) tPLH: Low-to-high Propagation Delay; tPHL: High-to-Low Propagation Delay; tPHZ: High-to-Hi-Z Propagation Delay; tPLZ: Low-to-Hi-Z Propagation Delay; tPZH: Hi-Z-to-High Propagation Delay; tPZL: Hi-Z-to-Low Propagation Delay

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 11)
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 (2) A B 2.5 0.3 4.7 0.2 3.8 0.2 2.8 0.2 2.4 ns
tPHL (2) 2.5 0.3 4.7 0.2 3.8 0.2 2.8 0.2 2.4
tPLH (2) B A 2.1 0.6 3.6 0.4 3.1 0.3 2.6 0.3 2.4 ns
tPHL (2) 2.1 0.6 3.6 0.4 3.1 0.3 2.6 0.3 2.4
tPHZ (2) DIR A 2.9 1.1 8 1 6.5 1.3 4.7 1.2 4 ns
tPLZ (2) 2.9 1.1 8 1 6.5 1.3 4.7 1.2 4
tPHZ (2) DIR B 3.4 0.5 6.6 0.3 5.6 0.3 4.6 1.1 4.2 ns
tPLZ (2) 3.4 0.5 6.6 0.3 5.6 0.3 4.6 1.1 4.2
tPZH (2) (1) DIR A 5.5 10.2 8.7 7.2 6.6 ns
tPZL (2) (1) 5.5 10.2 8.7 7.2 6.6
tPZH (2) (1) DIR B 5.4 12.7 10.3 7.5 6.4 ns
tPZL (2) (1) 5.4 12.7 10.3 7.5 6.4
(1) The enable time is a calculated value, derived using the formula shown in the section.
(2) tPLH: Low-to-high Propagation Delay; tPHL: High-to-Low Propagation Delay; tPHZ: High-to-Hi-Z Propagation Delay; tPLZ: Low-to-Hi-Z Propagation Delay; tPZH: Hi-Z-to-High Propagation Delay; tPZL: Hi-Z-to-Low Propagation Delay

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-port input,
B-port output		 CL = 0,
f = 10 MHz,
tr (2) = tf (2) = 1 ns		 3 3 3 3 4 pF
B-port input,
A-port output		 12 13 13 14 15
CpdB (1) A-port input,
B-port output		 CL = 0,
f = 10 MHz,
tr (2) = tf (2) = 1 ns		 12 13 13 14 15 pF
B-port input,
A-port output		 3 3 3 3 4
(1) Power-dissipation capacitance per transceiver
(2) tr: Rise time; tf: Fall time

6.12 Typical Characteristics

Table 1. Typical Total Static Power Consumption (ICCA + ICCB)

VCCB VCCA UNIT
0 V 1.2 V 1.5 V 1.8 V 2.5 V 3.3 V
0 V 0 <0.5 <0.5 <0.5 <0.5 <0.5 µA
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

6.12.1 Typical Propagation Delay (A to B) vs Load Capacitance, TA = 25°C, VCCA = 1.2 V

SN74AVC2T45 typc1_ces531.gif Figure 1. Typical A-to-B Propagation Delay, Low to High
SN74AVC2T45 typc2_ces531.gif Figure 2. Typical A-to-B Propagation Delay, High to Low

6.12.2 Typical Propagation Delay (A to B) vs Load Capacitance, TA = 25°C, VCCA = 1.5 V

SN74AVC2T45 typc3_ces531.gif Figure 3. Typical A-to-B Propagation Delay, Low to High
SN74AVC2T45 typc4_ces531.gif Figure 4. Typical A-to-B Propagation Delay, High to Low

6.12.3 Typical Propagation Delay (A-to-B) vs Load Capacitance, TA = 25°C, VCCA = 1.8 V

SN74AVC2T45 typc5_ces531.gif Figure 5. Typical A-to-B Propagation Delay, Low to High
SN74AVC2T45 typc6_ces531.gif Figure 6. Typical A-to-B Propagation Delay, High to Low

6.12.4 Typical Propagation Delay (A to B) vs Load Capacitance, TA = 25°C, VCCA = 2.5 V

SN74AVC2T45 typc7_ces531.gif Figure 7. Typical A-to-B Propagation Delay, Low to High
SN74AVC2T45 typc8_ces531.gif Figure 8. Typical A-to-B Propagation Delay, High to Low

6.12.5 Typical Propagation Delay (A to B) vs Load Capacitance, TA = 25°C, VCCA = 3.3 V

SN74AVC2T45 typc9_ces531.gif Figure 9. Typical A-to-B Propagation Delay, Low to High
SN74AVC2T45 typc10_ces531.gif Figure 10. Typical A-to-B Propagation Delay, High to Low