TL16C550CIFNG4 Texas Instruments Integrated Circuit (Plastic Leaded Chip Carrier) In Stock
Texas Instruments TL16C550CIFNG4 is a universal asynchronous receiver/transmitter (UART) IC supporting up to 1 Mbaud data rate, 3 V to 5.25 V supply, 16 MHz maximum clock, and housed in a 44-pin PLCC package for industrial serial communication designs.
- Manufacturer
- Texas Instruments
- Package
- Plastic Leaded Chip Carrier
- Pin Count
- 44
- Lifecycle
- OBSOLETE
- Datasheet
- TL16C550CIFNG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TL16C550CIFNG4?
- UART with up to 1 Mbaud asynchronous serial data rate and 16 MHz maximum clock frequency
- Dual-voltage operation: runs at 3.3 V supply at 14.9 MHz or up to 5.25 V supply for 5 V systems
- 8-bit external data bus with 3-bit address bus for straightforward microprocessor interface
- 44-pin PLCC package with NRZ data encoding for industrial and legacy serial communication boards
What is TL16C550CIFNG4 used for?
The TL16C550CIFNG4 is designed for industrial serial port expansion, embedded system UART bridges, and legacy RS-232/RS-485 communication interfaces in PLC systems, embedded computers, and test equipment. Its dual-voltage support at both 3.3 V and 5 V allows integration into mixed-voltage embedded platforms without level translation on the digital bus. The 44-pin PLCC package suits legacy industrial backplane designs requiring through-hole-compatible socketed serial communication ICs.
What are the specifications of TL16C550CIFNG4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | ALSO OPERATES AT 3.3V SUPPLY AT 14.9 MHZ |
| Address Bus Width | 3 |
| Boundary Scan | NO |
| Clock Frequency-Max | 16MHz |
| Communication Protocol | ASYNC, BIT |
| Data Encoding/Decoding Method | NRZ |
| Data Transfer Rate-Max | 0.125MBps |
| External Data Bus Width | 8 |
| JESD-30 Code | S-PQCC-J44 |
| JESD-609 Code | e4 |
| Low Power Mode | NO |
| Number of Serial I/Os | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LDCC44,.7SQ |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max | 10mA |
| Supply Voltage-Max | 5.25V |
| Supply Voltage-Min | 4.75V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | J BEND |
| Terminal Pitch | 1.27mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| uPs/uCs/Peripheral ICs Type | SERIAL IO/COMMUNICATION CONTROLLER, SERIAL |
| Package | Plastic Leaded Chip Carrier |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
Where can I find the TL16C550CIFNG4 datasheet?
TL16C550CIFNG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TL16C550CIFNG4?
Compatible alternatives and drop-in replacements for TL16C550CIFNG4:
Frequently Asked Questions
What is the maximum data rate and clock frequency of the TL16C550CIFNG4 UART?
The TL16C550CIFNG4 supports asynchronous serial communication at up to 1 Mbaud data transfer rate with a maximum clock frequency of 16 MHz at 5 V supply. When operating at 3.3 V supply, the device is specified at 14.9 MHz maximum clock, which slightly reduces the achievable baud rate ceiling while still supporting standard baud rates like 115200 bps, 230400 bps, and up to 921600 bps in most configurations.
Can the TL16C550CIFNG4 operate in both 3.3 V and 5 V systems without additional level translation?
The TL16C550CIFNG4 operates from a supply voltage range of 3 V to 5.25 V, allowing direct integration into both 3.3 V and 5 V digital systems. At 3.3 V supply the device runs at up to 14.9 MHz, while at 5 V supply it reaches the full 16 MHz specification. This dual-voltage compatibility eliminates the need for level translation ICs on the data bus when interfacing between 3.3 V microcontrollers and 5 V legacy industrial backplanes.
What is the PLCC package pin count on the TL16C550CIFNG4 and how does it suit legacy board designs?
The TL16C550CIFNG4 is housed in a 44-pin PLCC (Plastic Leaded Chip Carrier) package, which is a square surface-mount package with leads on all 4 sides. PLCC-44 packages are socket-compatible with standard PLCC sockets, allowing field replacement without soldering on legacy industrial systems and test equipment. The 44-pin count provides sufficient I/O for the 8-bit data bus, 3-bit address bus, control signals, and serial TX/RX pins required for full UART functionality.
In which industrial serial communication designs is the TL16C550CIFNG4 a practical UART choice?
The TL16C550CIFNG4 is a practical choice for PLC serial port expansion boards, industrial HMI RS-232 interfaces, legacy SCADA communication modules, and embedded PC ISA-bus UART cards requiring 1 Mbaud throughput. Its 8-bit parallel bus interface connects directly to classic 8-bit and 16-bit microprocessors, and the PLCC-44 socketed format simplifies maintenance of installed base equipment that cannot be redesigned to more modern UART ICs with different package footprints.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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