NXP Semiconductors offer a large selection of I2C voltage translators to address the various applications that need a transition of I2C signals through multiple voltage domains without direct control.
There are three different types of devices:
- FET for low capacitance applications
- FET with internal one shot for mid (100 pF to 300 pF) capacitance applications
- Active buffer with two supply pins for high (200 pF to 540 pF) capacitance applications
NXP’s family of translators, including auto-direction sensing options:
- Application Specific Voltage Translators
- Bidirectional Voltage Translators with Direction Pin
- Bidirectional Voltage Translators without Direction Pin
| PCA Family Features |
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GTL Family Features
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- Single and dual supply
- Bidirectional
- Auto-sensing
- Capacitive isolation
- High noise margin
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- Supports Gunning transceiver logic (GTL)
- Dual supply
- GTL to LVTTL level translation
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| NTB Family Features |
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NVT Family Features |
- Dual supply
- Bidirectional
- Auto-sensing
- Isolates capacitance
- Push-pull outputs
- Low output drive
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- Dual supply
- Bidirectional
- Auto-sensing
- Passive
- External pull-ups required
- 1-bit to 10-bits wide
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| NTS/NTSX Family Features |
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Applications
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- Dual supply
- Bidirectional
- Auto-sensing
- Passive
- Open drain
- Integrated pull-up resistors
- NTSX family has high sink current capability
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- I2C buffering
- Long cable
- Hot-swap
- Control interfaces
- Control interfaces with active drive
- Supports GTL levels on micro-processors
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