TXB0108 Datasheet, PDF (1/16 Pages) Texas Instruments – 8-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR WITH AUTO-DIRECTION SENSING AND ±15-kV ESD PROTECTION

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TXB0108
8-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR
WITH AUTO-DIRECTION SENSING AND ±15-kV ESD PROTECTION
SCES643A – NOVEMBER 2006 – REVISED JANUARY 2007
FEATURES
• 1.2 V to 3.6 V on A Port and 1.65 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
– 2000-V Human-Body Model (A114-B)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
– B Port
– ±15-kV Human-Body Model (A114-B)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
GXY OR ZXY PACKAGE
(BOTTOM VIEW)
1 2 3 45
D
C
B
A
TERMINAL ASSIGNMENTS
(20-Ball GXY/ZXY Package)
1
2
3
4
5
D
V_CCB
B2
B4
B6
B8
C
B1
B3
B5
B7
GND
B
A1
A3
A5
A7
OE
A
V_CCA
A2
A4
A6
A8
PW PACKAGE
(TOP VIEW)
A1 1
V_CCA 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 ⁹
OE ¹⁰
20 B1
19 V_CCB
18 B2
17 B3
16 B4
15 B5
14 B6
13 B7
12 _B8
11 _GND
RGY PACKAGE
(TOP VIEW)
1
V_CCA 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 9
10
20
19 V_CCB
18 B2
17 B3
16 B4
15 B5
14 B6
13 B7
12 B8
11
DESCRIPTION/ORDERING INFORMATION
This 8-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 TXB0101 is desinged so that the OE input circuit is supplied by V_CCA.
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 © 2006–2007, Texas Instruments Incorporated