ST ST16C1451CJ

Mfr. Part

ST16C1451CJ

Manufacturer

STMicroelectronics

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Detailed Description

ST16C1451CJ is a single-channel CMOS UART interface IC used to add reliable asynchronous serial communication to embedded and industrial systems. It is 16550-class compatible with a programmable baud rate generator, FIFO buffering, modem control, and interrupt logic for stable high-speed data. It fits the Integrated Circuits category and the Specialized ICs subcategory.

In-stock quantity 1402 units. Data code 9834. Package or case code 1213.

Key Features

Single UART channel for asynchronous serial communication

16550-compatible register set for easy driver and OS support

Programmable baud rate generator for flexible speed settings

FIFO buffering for transmit and receive to reduce overruns

Hardware flow control options RTS CTS and modem signals DTR DSR DCD RI (as supported by configuration)

Interrupt-driven operation for efficient CPU use

Configurable data bits parity and stop bits

Loopback test mode for quick diagnostics

TTL CMOS logic-level interface; connects to RS-232 or RS-485 via line drivers

Key Advantages

Simple drop-in integration for designs using 16C5x 16550-class UARTs

Stable high-speed serial I O with fewer errors thanks to FIFO

Broad ecosystem and driver compatibility reduce development time

Proven reliability in legacy and industrial environments

Clear register model and setup for quick bring-up and testing

Packaging

Type Integrated circuit device packaged as per manufacturer case code

Case code 1213 as provided for this lot

Material CJ variants are commonly ceramic J-leaded packages; plastic versions may exist for other options

Delivery format Typically tray or tube; tape-and-reel may be available on request

Size Refer to the datasheet mechanical drawing for exact dimensions of case code 1213 CJ package

Pin configuration Standard ST16C1451 family pinout; exact pin count and arrangement depend on the chosen package option; see the datasheet pin map

Thermal characteristics Typical industrial-grade operating range; thermal resistance values depend on package; see datasheet for RθJA RθJC and temperature limits

Electrical properties CMOS process; typical VCC 5 V for this family with TTL CMOS I O levels; exact limits and timing specs are in the datasheet

Lifecycle

Current status Mature legacy device; availability may be limited depending on package and date code. The provided data code 9834 indicates an older production lot.

Recommendation Verify lifecycle and last-time-buy status with Y-IC. We maintain inventory and can help secure supply and manage obsolescence.

Equivalent and alternative models to consider Evaluate based on required pinout package and features

- MaxLinear Exar XR16C1451 Single-channel 16550-compatible UART with similar functionality

- Texas Instruments TL16C550D Widely used 16550-compatible UART check pin compatibility

- NXP SC16C550B 16550-compatible UART check package and pin mapping

- Oxford OX16C95x family Enhanced UARTs with larger FIFOs not drop-in but functional alternatives

- STMicroelectronics ST16C1450 ST16C1452 Same family variants; verify differences and pinouts

If an exact equivalent is not listed Contact our sales team on the Y-IC website for the latest cross-reference options custom sourcing and lifecycle guidance

Key Application Areas

Industrial equipment serial ports and console interfaces

Embedded systems adding UART connectivity to MCUs or CPUs

RS-232 and RS-485 communication via external transceivers

POS terminals printers barcode scanners

Modems telecom systems and network management ports

Instrumentation data loggers and automation controllers

Legacy PC expansion and debug consoles

Datasheet

Y-IC provides the most authoritative datasheet for ST16C1451CJ on our product page. Download it here to get exact pinouts electrical limits mechanical drawings timing and configuration details.

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