TXB0104 Datasheet, PDF (1/12 Pages) Texas Instruments – 4-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR WITH AUTO DIRECTION SENSING AND ±15-kV ESD PROTECTION

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TXB0104
4-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR
WITH AUTO DIRECTION SENSING AND ±15-kV ESD PROTECTION
SCES650 – APRIL 2006
FEATURES
• 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
• Low Power Consumption, 4-µA Max I_CC
• I_off Supports Partial-Power-Down Mode
Operation
• 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
• ±15-kV Human-Body Model (A114-B)
• 200-V Machine Model (A115-A)
• 1500-V Charged-Device Model (C101)
GXU OR ZXU PACKAGE
(BOTTOM VIEW)
ABC
1
2
3
4
TERMINAL ASSIGNMENTS
(GXU/ZXU Package)
A
B
C
1
A1
V_CCB
B1
2
A2
V_CCA
B2
3
A3
OE
B3
4
A4
GND
B4
D OR 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
RGY PACKAGE
(TOP VIEW)
1
A1 2
A2 3
A3 4
A4 5
NC 6
7
14
13 B1
12 B2
11 B3
10 B4
9 NC
8
NC − No internal connection
NC − No internal connection
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.
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.
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 © 2006, Texas Instruments Incorporated