MaxLinear, Inc. ST16C650ACJ44TR-F

Mfr. Part

ST16C650ACJ44TR-F

Manufacturer

Exar (MaxLinear). Y-IC is a quality distributor of Exar/MaxLinear products. We deliver genuine parts, fast logistics, and professional support so you get the best products and services.

Detailed Description

Single-channel 16C650-compatible UART with 32-byte FIFO in a 44-PLCC J-lead package. Operates from 2.9V to 5.5V for easy use in both 3.3V and 5V systems. Supports RS232/RS422/RS485 protocols via external transceivers. Includes internal oscillator, printer port, and timer/counter. Built-in auto flow control, IrDA encoder/decoder, false start bit detection, and modem control signals. RoHS Compliant. Series ST16C650, base product number ST16C650. Supplier device package 44-PLCC (16.59 x 16.59 mm). Mounting type Surface Mount. Available stock: 2617 units. Main category Integrated Circuits (ICs), classification Interface – UARTs.

Key Features

16C650 register set compatibility with enhanced features

1 UART channel

32-byte transmit and receive FIFOs

Supply voltage range 2.9V to 5.5V

Max data rate up to 3.125 Mbps

Protocol support for RS232, RS422, RS485 (with external line drivers)

Internal oscillator for simpler design and fewer external parts

Auto hardware flow control (RTS/CTS)

IrDA SIR encoder/decoder for infrared communication

False start bit detection to reduce framing errors

Modem control signals support (RTS, CTS, DTR, DSR, DCD, RI)

Printer port and timer/counter functions

RoHS compliant

Key Advantages

Wide supply range works in both 3.3V and 5V designs

Larger FIFO improves throughput and lowers CPU interrupt load

Internal oscillator cuts BOM cost and speeds up design

Built-in IrDA support adds wireless flexibility without extra chips

Robust flow control and error handling increase link reliability

PLCC J-lead package is sturdy, rework-friendly, and proven in industrial use

Supports multiple physical layers (RS232/422/485) via simple external transceivers

Backward-compatible register set simplifies driver reuse and migration

Readily available from Y-IC with 2617 pieces in stock

Packaging

Type: Surface-mount IC, Tape & Reel (TR) for automated assembly

Package / Case: 44-PLCC, J-lead, body size 16.59 x 16.59 mm

Material: Molded plastic package with copper leadframe and lead-free plating (RoHS compliant)

Pin configuration: 44 J-leads arranged around the package; pin 1 indicated by corner notch; typical PLCC lead pitch 1.27 mm

Supplier Device Package: 44-PLCC (16.59 x 16.59)

Mounting: J-lead PLCC for reliable solder joints and easy rework

Thermal characteristics: Low-power UART; PLCC package provides good thermal robustness for typical interface loads; refer to datasheet for exact thermal resistance, derating, and recommended PCB copper area

Electrical properties: 2.9V–5.5V supply, TTL/CMOS logic-level I/O, 3.125 Mbps max serial rate, 32-byte FIFO, hardware flow control, IrDA support

Lifecycle

Status: Generally active under MaxLinear’s portfolio. Availability can vary by region and date.

Nearing discontinuation: Not indicated at present.

Equivalent or alternative models:

- MaxLinear XR16C650CJ44TR-F (functionally similar, 16C650 family in 44-PLCC, tape & reel)

- MaxLinear XR16C650CJ44-F (tray packaging option)

- MaxLinear XR16C850CJ44-F (upgrade path with larger FIFO, check pin and feature differences)

- NXP SC16C650B series (software-compatible 16C650-type UARTs; packaging differs, verify pinout and voltage)

- Texas Instruments TL16C650/TL16C650A (16C650-type UARTs; packaging and pinout vary)

- MaxLinear XR16C650CP (through-hole packages; not pin-compatible, but functionally similar)

Important: Always verify pin compatibility, voltage levels, timing, and features in each datasheet before substituting. If you need exact pin-compatible replacements or other options, contact our sales team via the Y-IC website for tailored recommendations.

Key Application Areas

Industrial control and PLC communication

POS terminals and kiosks

Instrumentation and test equipment

Embedded systems adding extra serial ports

RS232/RS422/RS485 bridges using external transceivers

Printers and legacy serial peripherals

Infrared data links via IrDA SIR

Building automation, energy systems, and data loggers

Datasheet

Y-IC hosts the most authoritative datasheet for ST16C650ACJ44TR-F. For accurate pinout, timing, thermal data, and electrical specs, download the datasheet directly from this page on our website.

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