Overview
The NVT4858HKZ is a highly advanced voltage level translator designed by NXP USA Inc. This device is specifically tailored to support SD 3.0-compliant interfaces, including SD, SDIO, mini SD, micro SD, and SIM cards. It features auto-direction control and is optimized for high-speed data transfer rates, making it an essential component in modern storage and communication systems.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCCA (Host side supply voltage) | 1.08 | - | 1.98 | V |
| VCCB (Memory and SIM card side supply voltage) | 1.62 | - | 3.6 | V |
| VI (Input voltage on host side) | -0.3 | - | VCCA + 0.3 | V |
| VI (Input voltage on memory and SIM card side) | -0.3 | - | VCCB + 0.3 | V |
| Clock Rate | - | - | 208 | MHz |
| Data Rate | - | - | 104 | MB/s |
| Static Supply Current (ICC(stat)) | - | - | 15 | μA |
| Standby Supply Current (ICC(stb)) | - | - | 7 | μA |
| Package Type | - | - | 9-WLCSP | - |
Key Features
- SD 3.0-compliant bidirectional dual voltage level translator with auto-direction control.
- Supports up to 208 MHz clock rate and various data transfer modes including SDR104, SDR50, DDR50, SDR25, SDR12, High-Speed, and Default-Speed.
- Compliant with ISO-7816 SIM/Smart Card interface requirements.
- Supports SD/SIM card supply voltages ranging from 1.62 V to 3.6 V and host microcontroller operating voltage range from 1.08 V to 1.98 V.
- Low power consumption with push-pull output stage and break-before-make architecture.
- Automatic enable and disable through VCCB or data input/output on the memory card side.
- Integrated EMI filter and ESD protection, eliminating the need for external ESD diodes.
Applications
- SD, SDIO, mini SD, micro SD, and SIM card interfaces in various electronic devices.
- Smartphones, tablets, and other mobile devices requiring high-speed data transfer.
- Embedded systems and IoT devices that need reliable voltage level translation.
- Industrial and automotive applications where robust EMI and ESD protection are crucial.
Q & A
- What is the NVT4858HKZ used for? The NVT4858HKZ is used as a voltage level translator for SD 3.0-compliant interfaces, including SD, SDIO, mini SD, micro SD, and SIM cards.
- What are the supported clock rates for the NVT4858HKZ? The device supports clock rates up to 208 MHz.
- What are the supply voltage ranges for the host and memory card sides? The host side supply voltage ranges from 1.08 V to 1.98 V, and the memory and SIM card side supply voltage ranges from 1.62 V to 3.6 V.
- Does the NVT4858HKZ require external ESD diodes? No, the device has integrated ESD protection, eliminating the need for external ESD diodes.
- What is the package type of the NVT4858HKZ? The device is packaged in a 9-WLCSP (Wafer Level Chip Scale Package).
- What are the key benefits of the NVT4858HKZ's auto-direction control? The auto-direction control allows for automatic enable and disable of the level translator logic based on the VCCB voltage, simplifying the design and operation of the system.
- What data transfer modes does the NVT4858HKZ support? The device supports various data transfer modes including SDR104, SDR50, DDR50, SDR25, SDR12, High-Speed, and Default-Speed.
- Is the NVT4858HKZ compliant with any specific standards? Yes, it is compliant with the SD 3.0 specification and ISO-7816 SIM/Smart Card interface requirements.
- What is the typical static supply current of the NVT4858HKZ? The typical static supply current is 15 μA.
- What is the standby supply current of the NVT4858HKZ? The standby supply current is 7 μA.
