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TXS0101
SCES638D – OCTOBER 2007 – REVISED JUNE 2017
TXS0101 1-Bit Bidirectional Level-Shifting, Voltage-Level Translator With Auto-DirectionSensing for Open-Drain and Push-Pull Applications
1 Features
2 Applications
•
•
•
•
•
1
•
•
•
•
•
•
•
•
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
ESD Protection Exceeds JESD 22
– A Port
– 2500 V Human-Body Model (A114-B)
– 200 V Machine Model (A115-A)
– 1500 V Charged-Device Model (C101)
– B Port
– 8 kV Human-Body Model (A114-B)
– 200 V Machine Model (A115-A)
– 1500 V Charged-Device Model (C101)
No Direction-Control Signal Needed
Maximum Data Rates
– 24 Mbps (Push Pull)
– 2 Mbps (Open Drain)
Available in the Texas Instruments NanoFree™
Package
1.65 V to 3.6 V on A port and 2.3 V to 5.5 V on B
port (VCCA ≤ VCCB)
VCC Isolation Feature – If Either VCC Input Is at
GND, Both Ports Are in the High-Impedance State
No Power-Supply Sequencing Required – Either
VCCA or VCCB Can be Ramped First
Ioff Supports Partial-Power-Down Mode Operation
Handsets
Smartphones
Tablets
Desktop PCs
3 Description
This one-bit non-inverting translator uses two
separate configurable power-supply rails. The A port
is designed to track VCCA. VCCA accepts any supply
voltage from 1.65 V to 3.6 V. The B port is designed
to track VCCB. VCCA must be less than or equal to
VCCB. VCCB accepts any supply voltage from 2.3 V to
5.5 V. This allows for low voltage bidirectional
translation between any of the 1.8 V, 2.5 V, 3.3 V,
and 5 V voltage nodes.
When the output-enable (OE) input is low, all outputs
are placed in the high-impedance state.
To ensure the high-impedance state during power up
or power down, OE should be tied to GND through a
pull-down resistor; the minimum value of the resistor
is determined by the current-sourcing capability of the
driver.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TXS0101DBV
SOT-23 (6)
2.90 mm × 1.60 mm
TXS0101DCK
SC70 (6)
2.00 mm × 1.25 mm
TXS0101DRL
SOT-5X3 (6)
1.90 mm × 1.60 mm
TXS0101YZP
DSBGA (6)
0.89 mm × 1.39 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Operating Circuit
1.8V
3.3V
1.8V
System
Controller
VCCA
VCCB
OE
3.3V
System
TXS0101
Data
GND
A
B
GND
Data
GND
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.
TXS0101
SCES638D – OCTOBER 2007 – REVISED JUNE 2017
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Table of Contents
1
2
3
4
5
6
Features ..................................................................
Applications ...........................................................
Description .............................................................
Revision History.....................................................
Pin Configuration and Functions .........................
Specifications.........................................................
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
6.10
6.11
6.12
7
1
1
1
2
3
4
Absolute Maximum Ratings ...................................... 4
ESD Ratings.............................................................. 4
Recommended Operating Conditions ...................... 5
Thermal Information ................................................. 5
Electrical Characteristics .......................................... 6
Timing Requirements: V CCA = 1.8 V ± 0.15 V ........ 7
Timing Requirements VCCA = 2.5 V ± 0.2 V ............ 7
Timing Requirements: 3.3 V ± 0.3 V ........................ 7
Switching Characteristics: VCCA = 1.8 V ± 0.15 V .... 8
Switching Characteristics: VCCA = 2.5 V ± 0.2 V .... 9
Switching Characteristics: VCCA = 3.3 V ± 0.3 V .. 12
Typical Characteristics ......................................... 13
Parameter Measurement Information ................ 14
7.1 Load Circuits ........................................................... 14
7.2 Voltage Waveforms................................................. 15
8
Detailed Description ............................................ 16
8.1
8.2
8.3
8.4
9
Overview .................................................................
Functional Block Diagram .......................................
Feature Description.................................................
Device Functional Modes........................................
16
16
17
17
Application and Implementation ........................ 18
9.1 Application Information............................................ 18
9.2 Typical Application ................................................. 18
10 Power Supply Recommendations ..................... 20
11 Layout................................................................... 20
11.1 Layout Guidelines ................................................. 20
11.2 Layout Example .................................................... 20
12 Device and Documentation Support ................. 21
12.1
12.2
12.3
12.4
12.5
12.6
Device Support......................................................
Receiving Notification of Documentation Updates
Community Resources..........................................
Trademarks ...........................................................
Electrostatic Discharge Caution ............................
Glossary ................................................................
21
21
21
21
21
21
13 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 (December 2015) to Revision D
Page
•
Changed YZP package pinout diagram with new image and added YZP pin assignments in Pin Functions table .............. 3
•
Added Junction temperature, TJ in Absolute Maximum Ratings table ................................................................................... 4
•
Added Receiving Notification of Documentation Updates section ....................................................................................... 21
Changes from Revision B (January 2009) to Revision C
•
2
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
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SCES638D – OCTOBER 2007 – REVISED JUNE 2017
5 Pin Configuration and Functions
DBV, DCK, and DRL Package
6-Pin SOT-23, SC70, and SOT
Top View
VCCA
1
6
VCCB
GND
2
5
OE
A
3
4
B
YZP Package
6-Pin DSBGA
Bottom View
1
2
C
A
B
B
GND
OE
A
VCCA
VCCB
Not to scale
Pin Functions
PIN
TYPE
DESCRIPTION
DBV, DCK,
DRL
YZP
A
3
C1
I/O
Input/output A. Referenced to VCCA
B
4
C2
I/O
Input/output B. Referenced to VCCB
GND
2
B1
G
Ground
OE
5
B2
I
Output enable. Pull OE low to place all outputs in 3-state mode. Referenced to VCCA.
VCCA
1
A1
I
A-port supply voltage. 1.65 V ≤ VCCA ≤ 3.6 V and VCCA ≤ VCCB
VCCB
6
A2
I
B-port supply voltage. 2.3 V ≤ VCCB ≤ 5.5 V
NAME
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SCES638D – OCTOBER 2007 – REVISED JUNE 2017
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6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted) (1)
VCCA
Supply voltage
VCCB
Supply voltage
(2)
MIN
MAX
UNIT
–0.5
4.6
V
V
–0.5
6.5
A port
–0.5
4.6
B port, OE
–0.5
6.5
A port
–0.5
4.6
B port
–0.5
6.5
A port
–0.5
VCCA + 0.5
B port
–0.5
VCCB + 0.5
VI
Input voltage
VO
Voltage range applied to any output
in the high-impedance or power-off state (2)
VO
Voltage range applied to any output in the high or low state (2)
IIK
Input clamp current
VI < 0
–50
mA
IOK
Output clamp current
VO < 0
–50
mA
IO
Continuous output current
±50
mA
(3)
V
V
V
Continuous current through VCCA, VCCB, or GND
±100
mA
TJ
Junction temperature
150
°C
Tstg
Storage temperature
150
°C
(1)
(2)
(3)
–65
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.
The input and output negative-voltage ratings may be exceeded if the input and output current ratings are observed.
The value of VCCA and VCCB are provided in the recommended operating conditions table.
6.2 ESD Ratings
VALUE
V(ESD)
(1)
(2)
4
Electrostatic discharge
Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, A Port
(1)
±2500
Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, B Port
(1)
±8000
Charged device model (CDM), per JEDEC specification JESD22-C101,
B Port (2)
±1500
Machine model (MM, A115-A), A Port
±200
UNIT
V
JEDEC document JEP155 states that 500 V HBM allows safe manufacturing with a standard ESD control process.
JEDEC document JEP157 states that 250 V CDM allows safe manufacturing with a standard ESD control process.
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SCES638D – OCTOBER 2007 – REVISED JUNE 2017
6.3 Recommended Operating Conditions
See (1)
(2)
VCCA
VCCA
VCCB
MIN
MAX
1.65
3.6
2.3
5.5
VCCI – 0.2
VCCI
VCCI – 0.4
VCCI
VCCI – 0.4
VCCI
Supply voltage (3)
1.65 V to 1.95 V
A-port I/Os
VIH
VCCB
High-level input voltage
2.3 V to 3.6 V
B-port I/Os
1.65 V to 3.6 V
OE input
2.3 V to 5.5 V
2.3 V to 5.5 V
VCCA × 0.65
5.5
0
0.15
A-port I/Os
VIL
Low-level input voltage
B-port I/Os
1.65 V to 3.6 V
2.3 V to 5.5 V
OE input
0
0.15
0
VCCA × 0.35
A-port I/Os, pushpull driving
Δt/Δv
Input transition rise or fall
rate
B-port I/Os, pushpull driving
(1)
(2)
(3)
V
V
V
10
1.65 V to 3.6 V
2.3 V to 5.5 V
10
Control Input
TA
UNIT
ns/V
10
Operating free-air temperature
–40
85
°C
VCCI is the supply associated with the input port.
VCCO is the supply associated with the output port.
VCCA must be less than or equal to VCCB, and VCCA must not exceed 3.6 V.
6.4 Thermal Information
TXS0101
THERMAL METRIC
RθJA
(1)
DCK (SC70)
DRL (SOT)
DSBGA (YZP)
6 PINS
6 PINS
6 PINS
6 PINS
UNIT
223.9
266.9
204.2
107.8
°C/W
RθJC(top) Junction-to-case (top) thermal resistance
185.6
80.4
76.4
1.6
°C/W
RθJB
Junction-to-board thermal resistance
63.5
99.1
38.7
10.8
°C/W
ψJT
Junction-to-top characterization parameter
63.5
1.5
3.4
3.1
°C/W
ψJB
Junction-to-board characterization parameter
71.8
98.3
38.5
10.8
°C/W
(1)
Junction-to-ambient thermal resistance
DBV (SOT-23)
For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report, SPRA953.
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SCES638D – OCTOBER 2007 – REVISED JUNE 2017
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6.5 Electrical Characteristics
over recommended operating free-air temperature range of –40°C to 85°C (unless otherwise noted) See (1)
PARAMETER
TEST
CONDITIONS
VCCA
VCCB
MIN
TYP
(2) (3)
MAX
VOHA
IOH = –20 μA,
VIB ≥ VCCB – 0.4 V
1.65 V to 3.6 V
2.3 V to 5.5 V
VOLA
IOL = 1 mA,
VIB ≤ 0.15 V
1.65 V to 3.6 V
2.3 V to 5.5 V
VOHB
IOH = –20 μA,
VIA ≥ VCCA – 0.2 V
1.65 V to 3.6 V
2.3 V to 5.5 V
VOLB
IOL = 1 mA,
VIA ≤ 0.15 V
1.65 V to 3.6 V
2.3 V to 5.5 V
1.65 V to 3.6 V
1.65 V to 5.5 V
0V
0 to 5.5 V
0 to 3.6 V
0V
1.65 V to 3.6 V
2.3 V to 5.5 V
1.65 V to VCCB
2.3 V to 5.5 V
2.4
3.6 V
0V
2.2
0V
5.5 V
–1
1.65 V to VCCB
2.3 V to 5.5 V
12
3.6 V
0V
–1
0V
5.5 V
1
1.65 V to VCCB
2.3 V to 5.5 V
3.3 V
3.3 V
II
OE
A port
Ioff
B port
IOZ
A or B port
ICCA + ICCB
OE
A port
Cio
B port
6
TA = 25°C
–40°C to 85°C
TA = 25°C
–40°C to 85°C
TA = 25°C
–40°C to 85°C
VI = VO = open,
IO = 0
ICCB
(1)
(2)
(3)
–40°C to 85°C
VI = VO = open,
IO = 0
ICCA
CI
TA = 25°C
VI = VCCI,
IO = 0
TA = 25°C
–40°C to 85°C
VCCA × 0.67
–40°C to 85°C
TA = 25°C
V
0.4
VCCB × 0.67
V
V
0.4
±1
±2
±1
±2
±1
±2
±1
±2
14.4
2.5
3.5
TA = 25°C
UNIT
V
μA
μA
μA
μA
μA
μA
μA
pF
5
3.3 V
3.3 V
–40°C to 85°C
6
6
pF
7.5
VCCI is the VCC associated with the input port.
VCCO is the VCC associated with the output port.
VCCA must be less than or equal to VCCB, and VCCA must not exceed 3.6 V.
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SCES638D – OCTOBER 2007 – REVISED JUNE 2017
6.6 Timing Requirements: V
CCA
= 1.8 V ± 0.15 V
MIN
Push-pull driving, Figure 4
Data rate
Open-drain driving, Figure 5
NOM
21
VCCB = 3.3 V, ± 0.3 V
22
VCCB = 5 V, ± 0.5 V
24
VCCB = 2.5 V, ± 0.2 V
2
VCCB = 3.3 V, ± 0.3 V
2
VCCB = 5 V, ± 0.5 V
tw
Push-pull driving, Figure 4
Pulse duration Figure 7
Data inputs
Open-drain driving, Figure 5
MAX
VCCB = 2.5 V, ± 0.2 V
UNIT
Mbps
2
VCCB = 2.5 V, ± 0.2 V
47
VCCB = 3.3 V, ± 0.3 V
45
VCCB = 5 V, ± 0.5 V
41
VCCB = 2.5 V, ± 0.2 V
500
VCCB = 3.3 V, ± 0.3 V
500
VCCB = 5 V, ± 0.5 V
500
ns
6.7 Timing Requirements VCCA = 2.5 V ± 0.2 V
MIN
Push-pull driving, Figure 4
Data rate
Open-drain driving, Figure 5
NOM
20
VCCB = 3.3 V, ± 0.3 V
22
VCCB = 5 V, ± 0.5 V
24
VCCB = 2.5 V, ± 0.2 V
2
VCCB = 3.3 V, ± 0.3 V
2
VCCB = 5 V, ± 0.5 V
tw
Push-pull driving, Figure 4
Pulse duration Figure 7
Data inputs
Open-drain driving, Figure 5
MAX
VCCB = 2.5 V, ± 0.2 V
UNIT
Mbps
1
VCCB = 2.5 V, ± 0.2 V
50
VCCB = 3.3 V, ± 0.3 V
45
VCCB = 5 V, ± 0.5 V
41
VCCB = 2.5 V, ± 0.2 V
500
VCCB = 3.3 V, ± 0.3 V
500
VCCB = 5 V, ± 0.5 V
500
ns
6.8 Timing Requirements: 3.3 V ± 0.3 V
MIN
Push-pull driving, Figure 4
Data rate
24
VCCB = 3.3 V, ± 0.3 V
Data inputs
Open-drain driving, Figure 5
VCCB = 5 V, ± 0.5 V
2
VCCB = 5 V, ± 0.5 V
Push-pull driving, Figure 4
Pulse duration Figure 7
MAX
23
VCCB = 3.3 V, ± 0.3 V
Open-drain driving, Figure 5
NOM
VCCB = 3.3 V, ± 0.3 V
VCCB = 5 V, ± 0.5 V
2
41
500
VCCB = 5 V, ± 0.5 V
500
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Mbps
43
VCCB = 3.3 V, ± 0.3 V
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UNIT
ns
7
TXS0101
SCES638D – OCTOBER 2007 – REVISED JUNE 2017
www.ti.com
6.9 Switching Characteristics: VCCA = 1.8 V ± 0.15 V
over recommended operating free-air temperature range, VCCA = 2.5 V ± 0.2 V (unless otherwise noted)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
TEST CONDITIONS (DRIVING)
Push-pull, Figure 4
tPHL Figure 8
Open-drain, Figure 5
A
B
Push-pull, Figure 4
Open-drain, Figure 5
Push-pull, Figure 4
Open-drain, Figure 5
B
A
Push-pull, Figure 4
Open-drain, Figure 5
OE
OE
A or B
Push-pull, Figure 6
A or B
Push-pull
trA
A-port rise time
Push-pull
B-port rise time
Open-drain
8
6.8
VCCB = 2.5 V ± 0.2 V
2.3
8.8
VCCB = 3.3 V ± 0.3 V
2.4
9.6
VCCB = 5 V ± 0.5 V
2.6
10
VCCB = 2.5 V ± 0.2 V
6.8
VCCB = 3.3 V ± 0.3 V
7.1
45
260
VCCB = 3.3 V ± 0.3 V
36
208
VCCB = 5 V ± 0.5 V
27
198
VCCB = 2.5 V ± 0.2 V
4.4
VCCB = 3.3 V ± 0.3 V
4.5
ns
4.7
VCCB = 2.5 V ± 0.2 V
1.9
5.3
VCCB = 3.3 V ± 0.3 V
1.1
4.4
VCCB = 5 V ± 0.5 V
1.2
4
VCCB = 2.5 V ± 0.2 V
5.3
VCCB = 3.3 V ± 0.3 V
4.5
ns
0.5
VCCB = 2.5 V ± 0.2 V
45
175
VCCB = 3.3 V ± 0.3 V
36
140
VCCB = 5 V ± 0.5 V
27
102
VCCB = 2.5 V ± 0.2 V
200
VCCB = 3.3 V ± 0.3 V
200
VCCB = 5 V ± 0.5 V
200
VCCB = 2.5 V ± 0.2 V
50
VCCB = 3.3 V ± 0.3 V
40
VCCB = 5 V ± 0.5 V
35
VCCB = 2.5 V ± 0.2 V
3.2
9.5
VCCB = 3.3 V ± 0.3 V
2.3
9.3
2
7.6
VCCB = 2.5 V ± 0.2 V
38
165
VCCB = 3.3 V ± 0.3 V
30
132
VCCB = 5 V ± 0.5 V
22
95
VCCB = 2.5 V ± 0.2 V
1.1
10.8
VCCB = 3.3 V ± 0.3 V
1
9.1
VCCB = 5 V ± 0.5 V
1
7.6
VCCB = 2.5 V ± 0.2 V
34
145
VCCB = 3.3 V ± 0.3 V
23
106
VCCB = 5 V ± 0.5 V
10
76
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UNIT
7.5
VCCB = 2.5 V ± 0.2 V
VCCB = 5 V ± 0.5 V
Open-drain
trB
5.4
VCCB = 5 V ± 0.5 V
VCCB = 5 V ± 0.5 V
tPLH Figure 8
tdis Figure 9
5.3
VCCB = 3.3 V ± 0.3 V
VCCB = 5 V ± 0.5 V
tPHL Figure 8
MAX
VCCB = 2.5 V ± 0.2 V
VCCB = 5 V ± 0.5 V
tPLH Figure 8
ten Figure 9
MIN
ns
ns
ns
ns
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Switching Characteristics: VCCA = 1.8 V ± 0.15 V (continued)
over recommended operating free-air temperature range, VCCA = 2.5 V ± 0.2 V (unless otherwise noted)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
TEST CONDITIONS (DRIVING)
Push-pull
tfA
A-port fall time
Open-drain
Push-pull
tfB
B-port fall time
Open-drain
MIN
MAX
VCCB = 2.5 V ± 0.2 V
1.9
5.9
VCCB = 3.3 V ± 0.3 V
1.9
6
VCCB = 5 V ± 0.5 V
1.4
13.3
VCCB = 2.5 V ± 0.2 V
4.4
6.9
VCCB = 3.3 V ± 0.3 V
4.3
6.4
VCCB = 5 V ± 0.5 V
4.2
6.1
VCCB = 2.5 V ± 0.2 V
2.2
13.8
VCCB = 3.3 V ± 0.3 V
2.2
16.2
VCCB = 5 V ± 0.5 V
2.6
16.2
VCCB = 2.5 V ± 0.2 V
6.9
13.8
VCCB = 3.3 V ± 0.3 V
7.5
16.2
7
16.2
VCCB = 5 V ± 0.5 V
Push-pull
Max data rate
A or B
Open-drain
VCCB = 2.5 V ± 0.2 V
21
VCCB = 3.3 V ± 0.3 V
22
VCCB = 5 V ± 0.5 V
24
VCCB = 2.5 V ± 0.2 V
2
VCCB = 3.3 V ± 0.3 V
2
VCCB = 5 V ± 0.5 V
2
UNIT
ns
Mbps
6.10 Switching Characteristics: VCCA = 2.5 V ± 0.2 V
over recommended operating free-air temperature range, VCCA = 2.5 V ± 0.2 V (unless otherwise noted)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
TEST CONDITIONS (DRIVING)
Push-pull, Figure 4
MIN
VCCB = 2.5 V ± 0.2 V
3.2
VCCB = 3.3 V ± 0.3 V
3.7
VCCB = 5 V ± 0.5 V
tPHL Figure 8
A
VCCB = 3.3 V ± 0.3 V
VCCB = 5 V ± 0.5 V
B
Push-pull, Figure 4
1.7
Open-drain, Figure 5
6.3
2
6
2.1
5.8
VCCB = 2.5 V ± 0.2 V
3.5
VCCB = 3.3 V ± 0.3 V
4.1
VCCB = 5 V ± 0.5 V
tPLH Figure 8
UNIT
3.8
VCCB = 2.5 V ± 0.2 V
Open-drain, Figure 5
MAX
4.4
VCCB = 2.5 V ± 0.2 V
43
250
VCCB = 3.3 V ± 0.3 V
36
206
VCCB = 5 V ± 0.5 V
27
190
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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 (unless otherwise noted)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
TEST CONDITIONS (DRIVING)
Push-pull, Figure 4
tPHL Figure 8
Open-drain, Figure 5
B
A
Push-pull, Figure 4
Open-drain, Figure 5
OE
A or B
Push-pull, Figure 6
tdis Figure 9
OE
A or B
Push-pull
trA
A-port rise time
Open-drain
Push-pull
trB
B-port rise time
Open-drain
Push-pull
tfA
A-port fall time
Open-drain
Push-pull
tfB
B-port fall time
Open-drain
10
MAX
VCCB = 2.5 V ± 0.2 V
3
VCCB = 3.3 V ± 0.3 V
3.6
VCCB = 5 V ± 0.5 V
4.3
VCCB = 2.5 V ± 0.2 V
1.8
4.7
VCCB = 3.3 V ± 0.3 V
1.6
4.2
VCCB = 5 V ± 0.5 V
1.2
4
VCCB = 2.5 V ± 0.2 V
2.5
VCCB = 3.3 V ± 0.3 V
1.6
VCCB = 5 V ± 0.5 V
tPLH Figure 8
ten Figure 9
MIN
ns
1
VCCB = 2.5 V ± 0.2 V
44
170
VCCB = 3.3 V ± 0.3 V
37
140
VCCB = 5 V ± 0.5 V
27
103
VCCB = 2.5 V ± 0.2 V
200
VCCB = 3.3 V ± 0.3 V
200
VCCB = 5 V ± 0.5 V
200
VCCB = 2.5 V ± 0.2 V
50
VCCB = 3.3 V ± 0.3 V
40
VCCB = 5 V ± 0.5 V
35
VCCB = 2.5 V ± 0.2 V
2.8
7.4
VCCB = 3.3 V ± 0.3 V
2.1
6.6
VCCB = 5 V ± 0.5 V
0.9
5.6
VCCB = 2.5 V ± 0.2 V
34
149
VCCB = 3.3 V ± 0.3 V
28
121
VCCB = 5 V ± 0.5 V
24
89
VCCB = 2.5 V ± 0.2 V
1.3
8.3
VCCB = 3.3 V ± 0.3 V
0.9
7.2
VCCB = 5 V ± 0.5 V
0.4
6.1
VCCB = 2.5 V ± 0.2 V
35
151
VCCB = 3.3 V ± 0.3 V
24
112
VCCB = 5 V ± 0.5 V
12
81
VCCB = 2.5 V ± 0.2 V
1.9
5.7
VCCB = 3.3 V ± 0.3 V
1.4
5.5
VCCB = 5 V ± 0.5 V
0.8
5.3
VCCB = 2.5 V ± 0.2 V
4.4
6.9
VCCB = 3.3 V ± 0.3 V
4.3
6.2
VCCB = 5 V ± 0.5 V
4.2
5.8
VCCB = 2.5 V ± 0.2 V
2.2
7.8
VCCB = 3.3 V ± 0.3 V
2.4
6.7
VCCB = 5 V ± 0.5 V
2.6
6.6
VCCB = 2.5 V ± 0.2 V
5.1
8.8
VCCB = 3.3 V ± 0.3 V
5.4
9.4
VCCB = 5 V ± 0.5 V
5.4
10.4
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UNIT
ns
ns
ns
ns
ns
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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 (unless otherwise noted)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
TEST CONDITIONS (DRIVING)
Push-pull
Max data rate
A or B
Open-drain
MIN
VCCB = 2.5 V ± 0.2 V
20
VCCB = 3.3 V ± 0.3 V
22
VCCB = 5 V ± 0.5 V
24
VCCB = 2.5 V ± 0.2 V
2
VCCB = 3.3 V ± 0.3 V
2
VCCB = 5 V ± 0.5 V
2
MAX
UNIT
Mbps
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6.11 Switching Characteristics: VCCA = 3.3 V ± 0.3 V
over recommended operating free-air temperature range, VCCA = 3.3 V ± 0.3 V (unless otherwise noted)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
TEST CONDITIONS (DRIVING)
Push-pull, Figure 4
tPHL Figure 8
Open-drain, Figure 5
A
B
Push-pull, Figure 4
tPLH Figure 8
Open-drain, Figure 5
Push-pull, Figure 4
tPHL Figure 8
Open-drain, Figure 5
B
A
Push-pull, Figure 4
tPLH Figure 8
Open-drain, Figure 5
ten Figure 9
OE
A or B
tdis Figure 9
OE
A or B
Push-pull, Figure 6
Push-pull
trA
A-port rise time
Open-drain
Push-pull
trB
B-port rise time
Open-drain
Push-pull
tfA
A-port fall time
Open-drain
Push-pull
tfB
B-port fall time
Open-drain
Push-pull
Max data rate
A or B
Open-drain
12
MIN
VCCB = 3.3 V ± 0.3 V
MAX
2.4
VCCB = 5 V ± 0.5 V
3.1
VCCB = 3.3 V ± 0.3 V
1.3
4.2
VCCB = 5 V ± 0.5 V
1.4
4.6
VCCB = 3.3 V ± 0.3 V
4.2
VCCB = 5 V ± 0.5 V
4.4
VCCB = 3.3 V ± 0.3 V
36
204
VCCB = 5 V ± 0.5 V
28
165
VCCB = 3.3 V ± 0.3 V
2.5
VCCB = 5 V ± 0.5 V
3.3
VCCB = 3.3 V ± 0.3 V
1
VCCB = 5 V ± 0.5 V
1
VCCB = 3.3 V ± 0.3 V
97
3
139
VCCB = 5 V ± 0.5 V
3
105
VCCB = 3.3 V ± 0.3 V
200
VCCB = 5 V ± 0.5 V
200
VCCB = 3.3 V ± 0.3 V
40
VCCB = 5 V ± 0.5 V
9.8
VCCB = 3.3 V ± 0.3 V
2.3
VCCB = 5 V ± 0.5 V
1.9
4.8
VCCB = 3.3 V ± 0.3 V
25
116
19
85
VCCB = 3.3 V ± 0.3 V
1.6
6.4
VCCB = 5 V ± 0.5 V
0.6
7.4
VCCB = 3.3 V ± 0.3 V
26
116
VCCB = 5 V ± 0.5 V
14
72
VCCB = 3.3 V ± 0.3 V
1.4
5.4
1
5
VCCB = 3.3 V ± 0.3 V
4.3
6.1
VCCB = 5 V ± 0.5 V
4.2
5.7
VCCB = 3.3 V ± 0.3 V
2.3
7.4
VCCB = 5 V ± 0.5 V
2.4
7.6
5
7.6
VCCB = 5 V ± 0.5 V
4.8
8.3
VCCB = 3.3 V ± 0.3 V
23
VCCB = 5 V ± 0.5 V
24
VCCB = 3.3 V ± 0.3 V
2
VCCB = 5 V ± 0.5 V
2
ns
ns
5.6
VCCB = 5 V ± 0.5 V
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ns
2.6
VCCB = 3.3 V ± 0.3 V
VCCB = 3.3 V ± 0.3 V
ns
124
2.5
VCCB = 5 V ± 0.5 V
VCCB = 5 V ± 0.5 V
UNIT
ns
ns
ns
Mbps
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700
700
600
600
Low-Level Output Voltage (mV)
Low-Level Output Voltage (mV)
6.12 Typical Characteristics
500
400
300
200
VCCB = 2.7 V
VCCB = 3.3 V
VCCB = 5 V
100
500
400
300
200
100
VCCB = 3.3 V
VCCB = 5 V
0
0
0
2
VCCA = 1.8 V
4
6
8
10
12
Low-Level Current (mA)
14
16
0
2
4
D001
VIL(A) = 150 mV
6
8
10
12
Low-Level Current (mA)
VCCA = 2.7 V
Figure 1. Low-Level Output Voltage (VOL(Bx)) vs Low-Level
Current (IOL(Bx))
14
16
D003
VIL(A) = 150 mV
Figure 2. Low-Level Output Voltage (VOL(Bx)) vs Low-Level
Current (IOL(Bx))
Low-Level Output Voltage (mV)
700
600
500
400
300
200
100
VCCB = 3.3 V
0
0
VCCA = 3.3 V
2
4
6
8
10
12
Low-Level Current (mA)
14
16
D002
VIL(A) = 150 mV
Figure 3. Low-Level Output Voltage (VOL(Bx)) vs Low-Level Current (IOL(Bx))
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7 Parameter Measurement Information
7.1 Load Circuits
Figure 4 shows the push-pull driver circuit used for measuring data rate, pulse duration, propagation delay,
output rise-time and fall-time. Figure 5 shows the open-drain driver circuit used for measuring data rate, pulse
duration, propagation delay, output rise-time and fall-time.
VCCI
VCCI
VCCO
VCCO
DUT
DUT
IN
IN
OUT
15 pF
OUT
15 pF
1M
1M
Figure 5. Data Rate, Pulse Duration, Propagation
Delay, Output Rise-Time and Fall-Time
Measurement Using an Open-Drain Driver
Figure 4. Data Rate, Pulse Duration, Propagation
Delay, Output Rise-Time and Fall-Time
Measurement Using a Push-Pull Driver
2 × VCCO
50 k
From Output
Under Test
15 pF
S1
Open
50 k
Figure 6. Load Circuit for Enable-Time and Disable-Time Measurement
1.
2.
3.
4.
14
TEST
S1
tPZL / tPLZ
(tdis)
2 × VCCO
tPHZ / tPZH
(ten)
Open
tPLZ and tPHZ are the same as tdis.
tPZL and tPZH are the same as ten.
VCCI is the VCC associated with the input port.
VCCO is the VCC associated with the output port.
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7.2 Voltage Waveforms
VCCI
tW .
Input
VCCI/2
VCCI/2
0V
VCCI
Input
VOHA/VOHB
VOHA/VOHB
tPLH
tPHL
0V
Output
VCCO/2
0.9
VCCO
0.1
VCCO
VOH
VCCO/2
VOL
tr
tf
Figure 8. Propagation Delay Times
Figure 7. Pulse Duration (Push-Pull)
VCCA
VCCA / 2
OE input
VCCA / 2
0V
tPLZ
tPZL
VOH
Output
Waveform 1
S1 at 2 × VCCO
VCCO / 2
VCCO × 0.2
(see Note 2)
tPHZ
tPZH
Output
Waveform 2
S1 at GND
(see Note 2)
VOL
VOH × 0.9
VCCO
VCCO / 2
0V
•
CL includes probe and jig capacitance.
•
Waveform 1 in Figure 9 is for an output with internal such that the output is high, except when OE is high (see
Figure 6). Waveform 2 in Figure 9 is for an output with conditions such that the output is low, except when OE is
high.
•
All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, dv/dt
≥ 1 V/ns.
•
The outputs are measured one at a time, with one transition per measurement.
•
tPLZ and tPHZ are the same as tdis.
•
tPZL and tPZH are the same as ten.
•
tPLH and tPHL are the same as tpd.
•
VCCI is the VCC associated with the input port.
•
VCCO is the VCC associated with the output port.
Figure 9. Enable and Disable Times
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8 Detailed Description
8.1 Overview
The TXS0101 device is a directionless voltage-level translator specifically designed for translating logic voltage
levels. The A port is able to accept I/O voltages ranging from 1.65 V to 3.6 V, while the B port can accept I/O
voltages from 2.3 V to 5.5 V. The device is a pass gate architecture with edge rate accelerators (one shots) to
improve the overall data rate. 10 kΩ pullup resistors, commonly used in open drain applications, have been
conveniently integrated so that an external resistor is not needed. While this device is designed for open drain
applications, the device can also translate push-pull CMOS logic outputs.
8.2 Functional Block Diagram
VCCA
VCCB
OE
One Shot
Accelerator
One Shot
Accelerator
Gate Bias
10N Ÿ
10N Ÿ
A
16
B
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8.3 Feature Description
8.3.1 Architecture
The TXS0101 architecture (see Figure 10) does not require a direction-control signal to control the direction of
data flow from A to B or from B to A.
VCCA
VCCB
T1
One
Oneshot
shot
One
Oneshot
shot
R1
10k
T2
R2
10k
Gate Bias
A
B
N2
Figure 10. Architecture of a TXS01xx Cell
Each A-port I/O has an internal 10 kΩ pullup resistor to VCCA, and each B-port I/O has an internal 10 kΩ pullup
resistor to VCCB. The output one-shots detect rising edges on the A or B ports. During a rising edge, the one-shot
turns on the PMOS transistors (T1,T2) for a short duration, which speeds up the low-to-high transition.
8.3.2 Input Driver Requirements
The fall time (tfA, tfB) of a signal depends on the output impedance of the external device driving the data I/Os of
the TXS0101. Similarly, the tPHL and max data rates also depend on the output impedance of the external driver.
The values for tfA, tfB, tPHL, and maximum data rates in the data sheet assume that the output impedance of the
external driver is less than 50 Ω.
8.3.3 Power Up
During operation, ensure that VCCA ≤ VCCB at all times. During power-up sequencing, VCCA ≥ VCCB does not
damage the device, so any power supply can be ramped up first.
8.3.4 Enable and Disable
The TXS0101 has an OE input that is used to disable the device by setting OE low, which places all I/Os in the
Hi-Z state. The disable time (tdis) indicates the delay between the time when OE goes low and when the outputs
actually get disabled (Hi-Z). The enable time (ten) indicates the amount of time the user must allow for the oneshot circuitry to become operational after OE is taken high.
8.3.5 Pullup or Pulldown Resistors on I/O Lines
Each A-port I/O has an internal 10 kΩ pullup resistor to VCCA, and each B-port I/O has an internal 10 kΩ pullup
resistor to VCCB. If a smaller value of pullup resistor is required, an external resistor must be added from the I/O
to VCCA or VCCB (in parallel with the internal 10 kΩ resistors).
8.4 Device Functional Modes
The TXS0101 device has two functional modes, enabled and disabled. To disable the device set the OE input
low, which places all I/Os in a high impedance state. Setting the OE input high will enable the device.
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9 Application and Implementation
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
9.1 Application Information
The TXS0101 can be used in level-translation applications for interfacing devices or systems operating at
different interface voltages with one another. The TXS0101 is ideal for use in applications where an open-drain
driver is connected to the data I/Os. The TXB0101 can also be used in applications where a push-pull driver is
connected to the data I/Os, but the TXB0102 might be a better option for such push-pull applications.
9.2 Typical Application
1.8 V
3.3 V
1.8-V
System
Controller
Data
VCCA
VCCB
3.3-V
System
OE
A
GND
B
Data
GND
GND
Figure 11. Typical Application Schematic
9.2.1 Design Requirements
For this design example, use the parameters listed in Table 1.
Table 1. Design Parameters
DESIGN PARAMETER
EXAMPLE VALUE
Input voltage range
1.65 to 3.6 V
Output voltage range
2.3 to 5.5 V
9.2.2 Detailed Design Procedure
To begin the design process, determine the following:
•
•
18
Input voltage range
– Use the supply voltage of the device that is driving the TXS0101 device to determine the input voltage
range. For a valid logic high the value must exceed the VIH of the input port. For a valid logic low the value
must be less than the VIL of the input port.
Output voltage range
– Use the supply voltage of the device that the TXS0101 device is driving to determine the output voltage
range.
– The TXS0101 device has 10 kΩ internal pullup resistors. External pullup resistors can be added to reduce
the total RC of a signal trace if necessary.
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An external pull down resistor decreases the output VOH and VOL. Use Equation 1 to calculate the VOH as a
result of an external pull down resistor.
VOH = VCCx × RPD / (RPD + 10 kΩ)
where
•
•
VCCx is the supply voltage on either VCCA or VCCB
RPD is the value of the external pull down resistor
(1)
9.2.3 Application Curve
2 V/div
5V
2V
10 ns/div
VCCA = 1.8 V
VCCB = 5 V
Figure 12. Level-Translation of a 2.5-MHz Signal
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10 Power Supply Recommendations
The TXS0101 device uses two separate configurable power-supply rails, VCCA and VCCB. VCCB accepts any
supply voltage from 2.3 V to 5.5 V and VCCA accepts any supply voltage from 1.65 V to 3.6 V as long as Vs is
less than or equal to VCCB. The A port and B port are designed to track VCCA and VCCB respectively allowing for
low voltage bidirectional translation between any of the 1.8 V, 2.5 V, 3.3 V, and 5 V voltage nodes.
The TXS0101 device does not require power sequencing between VCCA and VCCB during power-up so the powersupply rails can be ramped in any order. A VCCA value greater than or equal to VCCB (VCCA ≥ VCCB) does not
damage the device, but during operation, VCCA must be less than or equal to VCCB (VCCA ≤ VCCB) at all times.
The output-enable (OE) input circuit is designed so that it is supplied by VCCA and when the (OE) input is low, all
outputs are placed in the high-impedance state. To ensure the high-impedance state of the outputs during power
up or power down, the OE input pin must be tied to GND through a pulldown resistor and must not be enabled
until VCCA and VCCB are fully ramped and stable. The minimum value of the pulldown resistor to ground is
determined by the current-sourcing capability of the driver.
11 Layout
11.1 Layout Guidelines
To
•
•
•
•
ensure reliability of the device, following common printed-circuit board layout guidelines is recommended.
Bypass capacitors should be used on power supplies.
Short trace lengths should be used to avoid excessive loading.
PCB signal trace-lengths must be kept short enough so that the round-trip delay of any reflection is less than
the one shot duration, approximately 30 ns, ensuring that any reflection encounters low impedance at the
source driver.
Placing pads on the signal paths for loading capacitors or pullup resistors to help adjust rise and fall times of
signals depending on the system requirements
11.2 Layout Example
LEGEND
VIA to Power Plane
Polygonal Copper Pour
VIA to GND Plane (Inner Layer)
Bypass Capacitor
Bypass Capacitor
1
VCCB
VCCA
6
Keep OE low until VCCA and VCCB
are powered up
GND
3
A
TXS0101
OE
5
B
4
VCCA
To/From
Controller/System
2
To/From
Controller/System
Figure 13. Typical Layout of TXS0101
20
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12 Device and Documentation Support
12.1 Device Support
12.1.1 Related Documentation
For related documentation, see the following:
• A Guide to Voltage Translation With TXS-Type Translators, SCEA044
• Introduction to Logic, SLVA700
12.2 Receiving Notification of Documentation Updates
To receive notification of documentation updates, navigate to the device product folder on ti.com. In the upper
right corner, click on Alert me to register and receive a weekly digest of any product information that has
changed. For change details, review the revision history included in any revised document.
12.3 Community Resources
The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective
contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of
Use.
TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration
among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help
solve problems with fellow engineers.
Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and
contact information for technical support.
12.4 Trademarks
NanoFree, E2E are trademarks of Texas Instruments.
All other trademarks are the property of their respective owners.
12.5 Electrostatic Discharge Caution
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
12.6 Glossary
SLYZ022 — TI Glossary.
This glossary lists and explains terms, acronyms, and definitions.
13 Mechanical, Packaging, and Orderable Information
The following pages include mechanical, packaging, and orderable information. This information is the most
current data available for the designated devices. This data is subject to change without notice and revision of
this document. For browser-based versions of this data sheet, refer to the left-hand navigation.
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PACKAGE OPTION ADDENDUM
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22-Jun-2017
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
Lead/Ball Finish
MSL Peak Temp
(2)
(6)
(3)
Op Temp (°C)
Device Marking
(4/5)
TXS0101DBVR
ACTIVE
SOT-23
DBV
6
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
-40 to 85
(NFFF ~ NFFR)
TXS0101DBVRG4
ACTIVE
SOT-23
DBV
6
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
-40 to 85
(NFFF ~ NFFR)
TXS0101DBVT
ACTIVE
SOT-23
DBV
6
250
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
-55 to 125
NFFR
TXS0101DBVTG4
ACTIVE
SOT-23
DBV
6
250
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
-40 to 85
NFFR
TXS0101DCKR
ACTIVE
SC70
DCK
6
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
-40 to 85
2GO
TXS0101DCKRG4
ACTIVE
SC70
DCK
6
3000
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
-40 to 85
2GO
TXS0101DCKT
ACTIVE
SC70
DCK
6
250
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
-40 to 85
2GO
TXS0101DRLR
ACTIVE
SOT-5X3
DRL
6
4000
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
-40 to 85
2GR
TXS0101DRLRG4
ACTIVE
SOT-5X3
DRL
6
4000
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
-40 to 85
2GR
TXS0101YZPR
ACTIVE
DSBGA
YZP
6
3000
Green (RoHS
& no Sb/Br)
SNAGCU
Level-1-260C-UNLIM
-40 to 85
(2G7 ~ 2GN)
(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)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of
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