TXB0108 Translator Datasheet

TXB0108 Datasheet, PDF, Equivalent


Part Number

TXB0108

Description

8-Bit Bidirectional Voltage-Level Translator

Manufacture

etcTI

Total Page 30 Pages
Datasheet
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TXB0108
SCES643G – NOVEMBER 2006 – REVISED DECEMBER 2018
TXB0108 8-Bit Bidirectional Voltage-Level Translator with Auto-Direction Sensing and
±15-kV ESD Protection
1 Features
1 1.2 V to 3.6 V on A Port and 1.65 V to 5.5 V on
B Port (VCCA VCCB)
• VCC Isolation Feature – If Either VCC Input Is at
GND, All Outputs Are in the High-Impedance
State
• OE Input Circuit Referenced to VCCA
• Low Power Consumption, 4-μA Max ICC
• Ioff Supports Partial-Power-Down Mode Operation
• Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
• ESD Protection Exceeds JESD 22
– A Port
– 2000-V Human-Body Model (A114-B)
– 1000-V Charged-Device Model (C101)
– B Port
– ±15-kV Human-Body Model (A114-B)
– ±8-kV Human-Body Model (A114-B)
(YZP Package Only)
– 1000-V Charged-Device Model (C101)
2 Applications
• Handset
• Smartphone
• Tablet
• Desktop PC
3 Description
This 8-bit noninverting translator uses two separate
configurable power-supply rails. 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
1.65 V to 5.5 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, 3.3-V, and 5-V voltage nodes.
VCCA should not exceed VCCB.
When the output-enable (OE) input is low, all outputs
are placed in the high-impedance state.
The TXB0108 is designed so that the OE input circuit
is supplied by VCCA.
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.
To ensure the high-impedance state during power-up
or power-down, OE should be tied to GND through a
pulldown 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)
TVSOP (20)
5.00 mm x 4.40 mm
SON (20)
2.00 mm x 4.00 mm
TXB0108
BGA MICROSTAR
JUNIOR (20)
TSSOP (20)
2.50 mm x 3.00 mm
6.50 mm x 4.40 mm
VQFN (20)
4.50 mm x 3.50 mm
DSGBA (20)
1.90 mm x 2.40 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Typical Application Block Diagram for TXB010X
VCCA
VCCB
Processor
Peripheral
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.

TXB0108
TXB0108
SCES643G – NOVEMBER 2006 – REVISED DECEMBER 2018
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 5
6.1 Absolute Maximum Ratings ..................................... 5
6.2 Handling Ratings....................................................... 5
6.3 Recommended Operating Conditions ...................... 5
6.4 Thermal Information .................................................. 6
6.5 Electrical Characteristics .......................................... 6
6.6 Timing Requirements: VCCA = 1.2 V ......................... 7
6.7 Timing Requirements: VCCA = 1.5 V ± 0.1 V ............ 7
6.8 Timing Requirements: VCCA = 1.8 V ± 0.15 V .......... 7
6.9 Timing Requirements: VCCA = 2.5 V ± 0.2 V ............ 7
6.10 Timing Requirements: VCCA = 3.3 V ± 0.3 V .......... 7
6.11 Switching Characteristics: VCCA = 1.2 V ................. 8
6.12 Switching Characteristics: VCCA = 1.5 V ± 0.1 V .... 8
6.13 Switching Characteristics: VCCA = 1.8 V ± 0.15 V .. 8
6.14 Switching Characteristics: VCCA = 2.5 V ± 0.2 V .... 9
6.15 Switching Characteristics: VCCA = 3.3 V ± 0.3 V .... 9
6.16 Operating Characteristics........................................ 9
6.17 Typical Characteristics .......................................... 10
7 Parameter Measurement Information ................ 11
8 Detailed Description ............................................ 12
8.1 Overview ................................................................. 12
8.2 Functional Block Diagram ....................................... 12
8.3 Feature Description................................................. 13
8.4 Device Functional Modes........................................ 14
9 Application and Implementation ........................ 15
9.1 Application Information............................................ 15
9.2 Typical Application ................................................. 15
10 Power Supply Recommendations ..................... 17
11 Layout................................................................... 17
11.1 Layout Guidelines ................................................. 17
11.2 Layout Example .................................................... 17
12 Device and Documentation Support ................. 18
12.1 Receiving Notification of Documentation Updates 18
12.2 Community Resources.......................................... 18
12.3 Trademarks ........................................................... 18
12.4 Electrostatic Discharge Caution ............................ 18
12.5 Glossary ................................................................ 18
13 Mechanical, Packaging, and Orderable
Information ........................................................... 18
13.1 Package Addendum.............................................. 19
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision F (November 2014) to Revision G
Page
• Added pinout image for the ZYPR2 package option ............................................................................................................. 3
• Added text string 'GRID LOCATOR' to Pin Functions table YZP column to clarify pin location from 'Signal Name' ............ 4
Changes from Revision E (April 2012) to Revision F
Page
• Added Pin Configuration and Functions section, Handling Rating 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
• Changed VOLA value 0.9 to 0.3 .............................................................................................................................................. 6
Changes from Revision D (September 2011) to Revision E
Page
• Added notes to pin out graphics............................................................................................................................................. 3
Changes from Revision C (August 2011) to Revision D
Page
• Added ±8-kV Human-Body Model (A114-B) (YZP Package Only) to Features ..................................................................... 1
2 Submit Documentation Feedback
Product Folder Links: TXB0108
Copyright © 2006–2018, Texas Instruments Incorporated


Features Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity TXB0108 SCES643G – NOVEMBER 2 006 – REVISED DECEMBER 2018 TXB0108 8 -Bit Bidirectional Voltage-Level Transl ator with Auto-Direction Sensing and ± 15-kV ESD Protection 1 Features •1 1 .2 V to 3.6 V on A Port and 1.65 V to 5 .5 V on B Port (VCCA ≤ VCCB) • VCC Isolation Feature – If Either VCC Inp ut Is at GND, All Outputs Are in the Hi gh-Impedance State • OE Input Circuit Referenced to VCCA • Low Power Consu mption, 4-μA Max ICC • Ioff Supports Partial-Power-Down Mode Operation • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II • ESD Protection E xceeds JESD 22 – A Port – 2000-V Hu man-Body Model (A114-B) – 1000-V Char ged-Device Model (C101) – B Port – ±15-kV Human-Body Model (A114-B) – 8-kV Human-Body Model (A114-B) (YZP Pa ckage Only) – 1000-V Charged-Device M odel (C101) 2 Applications • Handset • Smartphone • Tablet • Desktop PC 3 Description This 8-bit noninverting translator uses two separate co.
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