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TCA9406,pdf(Dual Bidirectional
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2010-08-08
贾虎世
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1FEATURES
2• 2-Bit Bidirectional Translator for SDA and SCL
Lines in Mixed-Mode I
2
C Applications
• Lock-Up Free for Bus Isolation when OE
Control Pin referring to VCCA with 5-V Input
Tolerant
• Level Translation Range
– 1.8 V to 2.5 V/3.3 V/5 V
– 2.5 V to 2.5 V/3.3 V/5 V
– 3.3 V to 3.3 V/5 V
• Internal10-kΩ Pullup Resistor on Each Port
and Option to Add External Pullup Resistor if
Required
• Provides Bidirectional Voltage Translation
With No Direction Pin
• Ioff Support Partial Power Down (VCC= 0 V)
With 2 mA
• High-Impedance Output SCL1, SDA1, SCL2,
and SDA2 Pins When OE = Low or VCC= 0 V
• 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)
– 250-V Machine Model (A115-A)
– 1500-V Charged-Device Model (C101)
– B Port
– 8-kV Human-Body Model (A114-B)
– 250-V Machine Model (A115-A)
– 1500-V Charged-Device Model (C101)
2• 2-Bit Bidirectional Translator for SDA and SCL
Lines in Mixed-Mode I
2
C Applications
• Lock-Up Free for Bus Isolation when OE
Control Pin referring to VCCA with 5-V Input
Tolerant
• Level Translation Range
– 1.8 V to 2.5 V/3.3 V/5 V
– 2.5 V to 2.5 V/3.3 V/5 V
– 3.3 V to 3.3 V/5 V
• Internal10-kΩ Pullup Resistor on Each Port
and Option to Add External Pullup Resistor if
Required
• Provides Bidirectional Voltage Translation
With No Direction Pin
• Ioff Support Partial Power Down (VCC= 0 V)
With 2 mA
• High-Impedance Output SCL1, SDA1, SCL2,
and SDA2 Pins When OE = Low or VCC= 0 V
• 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)
– 250-V Machine Model (A115-A)
– 1500-V Charged-Device Model (C101)
– B Port
– 8-kV Human-Body Model (A114-B)
– 250-V Machine Model (A115-A)
– 1500-V Charged-Device Model (C101)
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