PI7C9X762BLE - Dual UART Bridge Controller | Diodes Incorporated
MPN: PI7C9X762BLE ✓ AktifPI7C9X762BLE Ringkasan
An interface bridge or protocol converter is an interface IC that translates commands and data between digital communication protocols. The PI7C9X762 belongs to the UART interface family and connects an I2C-bus or SPI controller with two UART channels. This hierarchy places it within interface controllers and, more broadly, within digital semiconductors and embedded communication systems.
The controller combines a dual-channel UART architecture with I2C/SPI host-side connectivity. Its headline capabilities include two UART channels, operation to 33 Mbps, 64-byte TX/RX buffering, and up to eight additional programmable GPIO pins. Low operating and sleeping current are emphasized by the manufacturer, supporting cost-efficient, battery-operated equipment where serial conversion must consume limited board area.
The PI7C9X762 register set is backward-compatible with the widely used 16C450 UART, according to the manufacturer datasheet. Additional functions include automatic hardware and software flow control, automatic RS-485 support, fractional baud-rate support, and software reset. The software-reset capability allows firmware to reset the UART independently of the hardware reset signal, which can simplify recovery after a communication fault.
Typical uses include portable data-collection equipment, industrial serial gateways, handheld test instruments, and embedded systems that must expose two high-speed UART channels through a host-controlled I2C or SPI interface. The dual-channel architecture reduces the need for separate UART devices, while the 28-TSSOP package supports conventional surface-mount PCB assembly.
Designers should verify the complete pin map, register behavior, electrical limits, and timing margins against the PI7C9X762 datasheet before layout release. Particular attention should be paid to I2C pull-up placement, SPI signal integrity, UART baud-rate accuracy, RS-485 direction control, and supply sequencing across the 1.8 V, 2.5 V, and 3.3 V operating options.
This product record combines the verified manufacturer specifications, distributor identification, package data, protocol capabilities, and sourcing links in one engineering-oriented reference. It also distinguishes confirmed device attributes from data that must be obtained from the full datasheet or authorized distributor records before a production design is released.
Pilihan pengganti yang segera untuk PI7C9X762BLE — sama paket, pin-pin kompatibel. Bahagian paket yang berbeza memerlukan kerja ulang PCB diasingkan.
Tiada pilihan pengganti yang segera untuk produk ini.
Minta AlternatifPI7C9X762BLE Penilaian maksimum & Ciri-ciri Elektrik
| Product Type | I2C/SPI to dual-channel UART bridge controller |
| UART Channels | 2 channels |
| Maximum Data Rate | Up to 33 Mbps |
| Supply Voltage Options | 1.8 V, 2.5 V, 3.3 V |
| Host-Side Protocols | I2C-bus and SPI |
| UART Interface | Dual-channel high-performance UART |
| Transmit Buffer | 64 bytes |
| Receive Buffer | 64 bytes |
| Additional Programmable GPIO | Up to 8 pins |
| Register Compatibility | Backward-compatible with the 16C450 UART |
| Flow Control | Automatic hardware and software flow control |
| RS-485 Support | Automatic RS-485 support |
| Baud Rate Support | Fractional baud rates supported |
| Reset Support | Software reset independent of hardware reset signal |
| Kemasan | 28-TSSOP |
| Jenis Pemasangan | Surface Mount |
Panduan Konfigurasi Pin PI7C9X762BLE 28-tssop
Konfigurasi pin untuk PI7C9X762BLE (28-tssop pakai). Peranti kuasa ini mempunyai terminal kawat, buang, dan sumber. Untuk pakai non-polarized, rujuk dokumen pengeluar untuk orientasi pin 1 tepat dan perincian kebentuk.
Tiada data garisan pin yang diperoleh untuk PI7C9X762BLE.
Rujuk kepada lembaran data untuk konfigurasi pin penuh.
Aplikasi Biasa
PI7C9X762BLE patut untuk 6 aplikasis: Industrial Serial Gateway, Battery-Powered Handheld Instrument, Portable Data-Acquisition Unit, Embedded Test and Measurement Equipment, RS-485 Communications Module, Embedded Control System.
Industrial Serial Gateway
The PI7C9X762BLE fits an industrial serial gateway that uses a host processor to aggregate two external UART links over an I2C-bus or SPI bus. Its two UART channels, operation up to 33 Mbps, and 64-byte transmit and receive buffers reduce the need for separate interface controllers. The same-part registers support automatic hardware and software flow control, while automatic RS-485 support can simplify communication with industrial transceivers. Designers should still verify electrical levels, transceiver direction control, timing margins, and thermal requirements for the deployed enclosure and industrial supply conditions.
Battery-Powered Handheld Instrument
The PI7C9X762BLE is appropriate for a battery-powered handheld instrument that communicates through one compact host interface while driving two UART peripherals. Support for 1.8 V, 2.5 V, and 3.3 V supply operation allows integration with different embedded processor rails, and the manufacturer identifies low operating and sleeping current as important benefits. Its 28-TSSOP package also conserves board area. Final battery-life qualification should use the exact operating and sleeping-current figures from the full datasheet, including the mode, clock configuration, and I2C/SPI activity assumed by the design.
Portable Data-Acquisition Unit
A portable data-acquisition unit can use the PI7C9X762BLE to bridge two serial sensor or peripheral channels into an embedded host processor through I2C or SPI. The dual-channel UART architecture provides a defined interface for concurrent data movement, while 64-byte TX/RX buffers help absorb short processing delays. Up to eight programmable GPIO pins may also support module-enable, interrupt, or status signaling. Firmware designers should confirm buffer thresholds, interrupt latency, and fractional baud-rate behavior against the specific sensor timing requirements before production release.
Embedded Test and Measurement Equipment
The PI7C9X762BLE is suitable for compact automated test equipment that needs multiple high-speed serial control paths without dedicating separate UART controllers. Two channels operating up to 33 Mbps can serve instrument-control traffic, programmable GPIO can handle auxiliary triggers, and the 16C450-compatible register set can ease driver adaptation for supported designs. Software reset provides firmware recovery without requiring manipulation of the hardware reset signal. Engineers must validate signal levels, timing margins, baud-rate tolerance, and host-driver behavior against their specific test fixture.
RS-485 Communications Module
The PI7C9X762BLE can support an intelligent RS-485 communications module by providing two UART channels and a host-side I2C or SPI processor interface. The manufacturer's feature set includes automatic RS-485 support, hardware and software flow control, and software reset, which can reduce host-side control overhead. The bridge itself is a logic IC, so it still requires an appropriate RS-485 line transceiver, termination, biasing, isolation where required, and protection suited to the installation environment. Those external details must be designed separately rather than assumed to be integrated in the 28-TSSOP device.
Embedded Control System
The PI7C9X762BLE fits an embedded control system in which a microcontroller or application processor communicates with two UART-based controllers over I2C or SPI. The bridge supports host-side protocol flexibility, dual UART channels, programmable GPIO, and buffered transfers. A software reset can recover the UART interface independently of the board-level reset path, potentially shortening firmware recovery sequences. For production use, designers should review interrupt latency, power sequencing, I2C pull-up requirements, SPI routing, and the complete electrical characteristic table from the manufacturer datasheet.
Data referensi kejuruteraan untuk PI7C9X762BLE — perbandingan, panduan rancangan, dan maklumat kesediaan
Panduan Pilihan
Perbandingan dengan Gantian
| Parametr | Produk Ini |
|---|---|
| Product Type | I2C/SPI to dual-channel UART bridge controller |
| Package | 28-TSSOP |
| Brand | Diodes Incorporated |
| UART Channels | 2 channels |
| Maximum Data Rate | Up to 33 Mbps |
| Supply Voltage Options | 1.8 V, 2.5 V, 3.3 V |
| Host-Side Protocols | I2C-bus and SPI |
| Buffer Capacity | 64-byte TX and 64-byte RX |
| Programmable GPIO | Up to 8 pins |
| Flow Control | Automatic hardware and software flow control |
| RS-485 Support | Automatic RS-485 support |
Penyeberangsung Jelas
- Dual high-speed UART channels behind one host interface (vsPI7C9X762CLEVB)
- Dedicated transmit and receive buffering (vsPI7C9X762BZHEX)
- Protocol and recovery features for embedded control (vsPI7C9X762CZHEX)
Catatan Desain
Reserve the 28-TSSOP footprint exactly as defined by the official package drawing and confirm every pin function before routing. In particular, separate I2C, SPI, UART, GPIO, supply, and ground assignments must not be inferred from the distributor description. Place I2C pull-up resistors at the bus end that physically owns the pull-ups, review the recommended SPI trace topology in the datasheet, and provide a low-impedance ground path beneath the device before finalizing placement.
Decoupling should follow the manufacturer recommendation using capacitors and placement values obtained from the complete PI7C9X762 datasheet. The bridge supports 1.8 V, 2.5 V, and 3.3 V supply operation, but the correct regulator choice depends on the host, UART peripheral, and I/O levels used by the complete design. Check absolute maximum and recommended operating limits, startup behavior, and power-supply sequencing before combining this device with powered-down peripherals.
Treat I2C and SPI as separate high-speed interfaces rather than routing both as generic serial signals. For I2C, calculate the pull-up value from bus voltage, total capacitance, and the slowest participating device, and confirm that rise time remains acceptable. For SPI, provide a continuous ground reference, minimize stub lengths, and account for host timing, I/O voltage, and peripheral fan-out. UART signals require separate characterization for baud rate, logic level, and any RS-485 transceiver in the path.
Do not select a replacement based only on the phrases I2C/SPI-to-UART or on a shared 28-TSSOP pin count. A true drop-in device must preserve the target pinout, electrical limits, clock requirements, register compatibility, interrupt structure, GPIO allocation, and both 64-byte UART buffers. Also verify the automatic RS-485 and flow-control features rather than assuming every UART bridge implements them in the same way.
Maklumat Kesediaan
The supplied verified excerpts do not provide explicit compliance declarations for PI7C9X762BLE. Compliance fields therefore remain unknown rather than being inferred from the distributor ordering code or package name.
