TXB0104-Q1 Datasheet, PDF (1/20 Pages) Texas Instruments – 4-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR WITH AUTOMATIC DIRECTION SENSING AND 15-kV ESD PROTECTION

TXB0104-Q1
www.ti.com...................................................................................................................................................................................................... SCES727 – JUNE 2008
4-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR
WITH AUTOMATIC DIRECTION SENSING AND ±15-kV ESD PROTECTION
FEATURES
1
• Qualified for Automotive Applications
• 1.2 V to 3.6 V on A Port and 1.65 V to 5.5 V on
B Port (V_CCA ≤ V_CCB)
• V_CC Isolation Feature – If Either V_CC Input Is at
GND, All Outputs Are in the High-Impedance
State
• OE Input Circuit Referenced to V_CCA
• I_off Supports Partial-Power-Down Mode
Operation
• Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
PW PACKAGE
(TOP VIEW)
V_{CCA 1}
A1 2
A2 3
A3 4
A4 5
NC 6
GND 7
14 ^VCCB
13 B1
12 B2
11 B3
10 B4
9 NC
8 OE
• 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
– ±15-kV Human-Body Model (A114-B)
– 200-V Machine Model (A115-A)
– 1500-V Charged-Device Model (C101)
RGY PACKAGE
(TOP VIEW)
A1 2
A2 3
A3 4
A4 5
NC ⁶
1
14
13 B1
Exposed
Center
Pad
12 B2
11 B3
10 B4
9 NC
7
8
NC − No internal connection
For RGY, if the exposed center pad is used, it must be connected only to as a secondary ground or left electrically
open.
DESCRIPTION/ORDERING INFORMATION
This 4-bit noninverting translator uses two separate configurable power-supply rails. The A port is designed to
track V_CCA. V_CCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track V_CCB. V_CCB
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. V_CCA should not exceed V_CCB.
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 pulldown resistor;
the minimum value of the resistor is determined by the current-sourcing capability of the driver.
The TXB0104 is designed so that the OE input circuit is supplied by V_CCA.
This device is fully specified for partial-power-down applications using I_off. The I_off circuitry disables the outputs,
preventing damaging current backflow through the device when it is powered down.
1
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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2008, Texas Instruments Incorporated