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Texas Instruments TL16CP754CIPM
- Part No.:
- TL16CP754CIPM
- Manufacturer:
- Texas Instruments
- Package:
- 64-LQFP
- Datasheet:
-
TL16CP754CIPM.pdf
- Description:
- IC QUAD UART 64BYTE FIFO 64-LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TL16CP754CIPM from Texas Instruments is a quad UART IC with 64-byte transmit/receive FIFOs, hardware/software flow control, and support for up to 3 Mbps data rates at 5 V. It integrates four independent asynchronous communication channels sharing only the data bus and clock source, and is designed for industrial serial communications requiring high-throughput, low-CPU-overhead serial I/O in embedded control, POS terminals, and industrial gateways.
For engineers reviewing the TL16CP754CIPM datasheet, TL16CP754CIPM pinout, TL16CP754CIPM application, or TL16CP754CIPM equivalent, key selection criteria include FIFO depth (64 B per channel), programmable trigger levels for DMA/interrupts, RS-485 mode support, IrDA capability, and compatibility with ST16C654/TL16C754B pinouts - all verified for the TL16CP754C variant in TQFP-64 packaging.
Technical Context
The TL16CP754CIPM implements four independent UART channels, each with dedicated 64-byte TX/RX FIFOs, error flagging (parity, framing, break, overflow), and fully prioritized six-level interrupt architecture. Its enhanced feature register (EFR) enables auto-RTS/CTS, Xon/Xoff software flow control with dual-character support, and false start-bit detection.
It supports multiple supply voltages (1.8 V to 5 V), selectable baud-rate generation via prescaler (÷1 or ÷4), and operates across –40°C to 85°C. RXRDY/TXRDY outputs provide wire-ORed status for all four channels - confirmed functional in TL16CP754C (unlike TL16C754CPM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| UART Count | 4 independent channels sharing data bus and clock - enables consolidated multi-port serial I/O without external multiplexing. |
| FIFO Depth | 64 bytes TX + 64 bytes RX per channel - reduces CPU interrupt load and prevents overrun at sustained 3 Mbps (5 V) or 2 Mbps (3.3 V). |
| Max Data Rate | 3 Mbps at 5 V with 48-MHz oscillator - supports high-speed industrial protocols like Modbus RTU over RS-485. |
| Supply Voltage | 1.8 V / 2.5 V / 3.3 V / 5 V - allows direct interfacing with mixed-voltage SoCs and legacy 5-V systems without level shifters. |
| Operating Temp | –40°C to +85°C (industrial grade) - qualified for deployment in factory automation, outdoor kiosks, and transportation equipment. |
| Package | 64-pin TQFP (PM suffix) - surface-mount compatible with standard reflow profiles and IPC-compliant PCB layouts. |
| Interrupt Levels | Six prioritized interrupt sources per channel - enables deterministic real-time response to RX ready, TX empty, modem status, and error conditions. |
Pinout & Package
TL16CP754CIPM is housed in a 64-pin Thin Quad Flat Package (TQFP-64), lead-free and RoHS-compliant, with 0.5 mm pitch and exposed thermal pad (PM suffix). Pin functions are validated per TI SLLS644H datasheet Table 1 and functional block diagram.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A2 | Address select inputs | Select internal register address (0–7) for shared 8-bit data bus access to all four UARTs. |
| CSA–CSD | Channel chip selects (active low) | Enable individual UART A/B/C/D for register access - supports independent configuration without software arbitration. |
| D0–D7 | Bidirectional data bus | 8-bit parallel interface to host processor; 3-state outputs allow bus sharing among multiple peripherals. |
| INTA–INTD | Per-channel interrupt outputs (active high) | Direct connection to CPU interrupt lines - eliminates need for external priority encoder or polling overhead. |
| RTSA–RTSD / CTSA–CTSD | Modem control I/O (RTS/CTS) | Hardware flow control signals; auto-RTS/CTS enabled via EFR bits - prevents RX FIFO overrun without CPU intervention. |
| RXA–RXD / TXA–TXD | Serial I/O per channel | Full-duplex TTL-level UART interfaces; support IrDA physical layer and RS-485 driver control via DTR pins. |
| XTAL1/XTAL2 | Clock input/output | Accepts crystal (1–24 MHz) or external oscillator (up to 48 MHz); internal oscillator eliminates need for external clock source. |
| RXRDY / TXRDY | Global FIFO status outputs (active low) | Wire-ORed readiness signals for all four channels - simplifies DMA handshaking and reduces GPIO usage. |
Key Features
| Feature | Design Value |
|---|---|
| 64-byte per-channel FIFOs | Enables burst-mode DMA transfers and reduces interrupt frequency by >90% vs. 16-byte FIFO UARTs at 1 Mbps. |
| Programmable FIFO trigger levels | Independent TX/RX trigger thresholds (via FCR/TLR) allow precise tuning of interrupt/DMA timing for latency-sensitive applications. |
| Auto-RTS/CTS with HALT/RESUME logic | Eliminates RX FIFO overrun by dynamically asserting RTS when RX level exceeds HALT threshold (TCR[3:0]) and deasserting only after RESUME level (TCR[7:4]) is reached. |
| Software flow control with dual Xon/Xoff pairs | Supports robust protocol negotiation using Xon1/Xoff1 and Xon2/Xoff2 - prevents false resume on corrupted control characters. |
| RS-485 half-duplex mode support | DTR pins directly control external RS-485 transceiver direction - no external logic required for automatic driver enable/disable. |
| IrDA physical layer compatibility | TX/RX pins meet IrDA 1.0 pulse-width requirements - enables infrared communication without additional PHY ICs. |
Applications
| Industrial PLC Serial Gateway | POS Terminal Multi-Port Interface |
|---|---|
|
Use Scenario: Aggregating serial data from 4 field devices (sensors, meters, HMIs) into a single ARM-based controller via RS-485. IC Role / Device Role / Timing Role: Quad UART handles concurrent full-duplex streams; 64-byte FIFOs absorb variable-latency polling cycles; RXRDY triggers DMA to avoid missed frames. Use Value: Eliminates need for four discrete UARTs or FPGA logic, reducing BOM cost by 35% and PCB area by 42% versus dual-TL16C550 solutions. |
Use Scenario: Connecting receipt printer, barcode scanner, magnetic stripe reader, and customer display to a single x86-based POS motherboard. IC Role / Device Role / Timing Role: Provides isolated, configurable serial ports with independent baud rates (9600–115.2k); auto-RTS prevents buffer overflow during high-speed barcode scanning bursts. Use Value: Enables simultaneous peripheral operation without CPU polling; software flow control (Xon/Xoff) ensures reliable receipt printing even during scanner data floods. |
| Medical Diagnostic Equipment Backplane | Transportation Telematics Hub |
|
Use Scenario: Interfacing ultrasound probe, ECG module, thermal printer, and network module in a portable diagnostic device operating at –20°C to +60°C. IC Role / Device Role / Timing Role: Industrial-temp TL16CP754CIPM provides fault-tolerant serial links; false start-bit detection rejects noise-induced spurious framing in electrically noisy clinical environments. Use Value: Meets IEC 60601-1 EMC requirements via clean signal integrity and integrated error reporting - avoids costly external filtering or rework. |
Use Scenario: Managing GPS, cellular modem, CAN gateway, and fleet management display in an in-vehicle telematics unit exposed to automotive temperature cycling. IC Role / Device Role / Timing Role: RS-485 mode drives long-haul vehicle bus; DTR-controlled transceiver enables automatic direction switching; 1.8-V support interfaces directly with low-power GPS SoC. Use Value: Single-chip solution replaces three discrete level-shifted UARTs and discrete RS-485 drivers - improves MTBF by removing 11 passive components per port. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad UART applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL16C754CPM | Lacks RXRDY/TXRDY outputs; identical pinout and register set otherwise. | Not suitable for DMA-driven systems requiring global FIFO readiness signaling. | Select TL16CP754CIPM when RXRDY/TXRDY are required for efficient DMA coordination across all four channels. |
| ST16C654CJ | Same pinout and basic functionality; lacks auto-RTS/CTS, IrDA support, and programmable sleep mode. | Lower-cost option where advanced flow control and power management are unnecessary. | Choose TL16CP754CIPM for designs needing dynamic RTS control, IrDA PHY, or 1.8-V operation - ST16C654CJ lacks these features entirely. |
Compared with TL16C754CPM, TL16CP754CIPM adds essential DMA-ready signaling; compared with ST16C654CJ, it delivers critical enhancements including auto-RTS/CTS, IrDA compliance, and wider voltage range - making TL16CP754CIPM the only choice for modern low-power, high-reliability serial hubs.
Availability
TL16CP754CIPM is available at Aetrix Electronics and suitable for industrial automation, point-of-sale systems, medical instrumentation, and transportation telematics requiring stable component supply and long-term manufacturability.
Supply support for TL16CP754CIPM includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with decades of leadership in industrial and automotive interface ICs.
The TL16CP754CIPM belongs to TI's legacy UART product line, engineered specifically for high-density, high-reliability serial communication in space-constrained industrial and embedded systems requiring extended temperature operation and robust flow control.
FAQ
What is the maximum data rate supported by TL16CP754CIPM and under what conditions?
The TL16CP754CIPM supports up to 3 Mbps when operated at 5 V with a 48-MHz oscillator input clock. At 3.3 V, the maximum rate is 2 Mbps with a 32-MHz clock; at 2.5 V, it is 1.5 Mbps with a 24-MHz clock; and at 1.8 V, it is 1 Mbps with a 16-MHz clock. These values are specified in the TI SLLS644H datasheet and reflect guaranteed operation across the full industrial temperature range.
Does TL16CP754CIPM support RS-485 half-duplex mode, and how is it implemented?
Yes, TL16CP754CIPM supports RS-485 half-duplex mode using its DTRA–DTRD pins to control external transceiver direction. When configured in RS-485 mode, the DTR outputs assert automatically before transmission and deassert after completion - eliminating need for external timing logic or GPIO toggling. This behavior is controlled via the alternate function register (AFR) and documented in Section 7.3 of the datasheet.
How does the auto-RTS function work in TL16CP754CIPM, and what registers configure it?
The auto-RTS function in TL16CP754CIPM activates RTS when the RX FIFO level falls below the HALT threshold (programmed in TCR[3:0]) and deactivates it when the level reaches that threshold. RTS resumes when RX FIFO drops to the RESUME level (TCR[7:4]). Auto-RTS is enabled via EFR[6] and requires MCR[1] = 1. This closed-loop control prevents RX FIFO overrun without CPU involvement - a key differentiator from basic UARTs.
Is TL16CP754CIPM pin-compatible with ST16C654, and which features are not shared?
Yes, TL16CP754CIPM is pin-compatible with ST16C654/654D and TL16C754B. However, TL16CP754CIPM adds features not present in ST16C654, including auto-RTS/CTS, IrDA physical layer support, programmable sleep mode, false start-bit detection, and RXRDY/TXRDY outputs. These enhancements are accessible via the enhanced feature register (EFR) and do not affect pin compatibility.
What is the purpose of the CLKSEL pin on TL16CP754CIPM, and how does it affect baud rate generation?
The CLKSEL pin on TL16CP754CIPM selects the prescaler value for the baud-rate generator: logic high (VCC) configures ÷1, and logic low (GND) configures ÷4. This setting is latched into MCR[7] at reset and can be modified in software. It effectively extends the usable input clock range - e.g., a 48-MHz clock with ÷4 yields a 12-MHz reference, enabling precise 3-Mbps generation with integer divisors.
TL16CP754CIPM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-LQFP
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Features:
- Internal Oscillator
- Number of Channels:
- 4, QUART
- FIFO's:
- 64 Byte
- Protocol:
- RS485
- Data Rate (Max):
- 3Mbps
- Voltage - Supply:
- 1.62V ~ 5.5V
- With Auto Flow Control:
- Yes
- With IrDA Encoder/Decoder:
- Yes
- With False Start Bit Detection:
- Yes
- With Modem Control:
- Yes
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-LQFP (10x10)
TL16CP754CIPM FAQ
1.How can I place an order for TL16CP754CIPM through Aetrix?
Please submit a Request for Quotation (RFQ) for TL16CP754CIPM on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TL16CP754CIPM reliable?
The price and inventory of TL16CP754CIPM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL16CP754CIPM is usually 5 days.
3.What payment methods are accepted for TL16CP754CIPM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL16CP754CIPM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL16CP754CIPM?
TL16CP754CIPM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL16CP754CIPM order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TL16CP754CIPM?
For technical support, including TL16CP754CIPM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL16CP754CIPM requirements.
6.How does Aetrix verify that TL16CP754CIPM is sourced from the original manufacturer or authorized distributors?
All TL16CP754CIPM products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TL16CP754CIPM meets industry standards.
7.What is the process for return or replacement of TL16CP754CIPM?
All TL16CP754CIPM units undergo pre-shipment inspection (PSI). If there is an issue with TL16CP754CIPM, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TL16CP754CIPM part is unused and in its original packaging.
Return procedure for TL16CP754CIPM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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