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Texas Instruments TL16CP754CIPMRG4
- Part No.:
- TL16CP754CIPMRG4
- Manufacturer:
- Texas Instruments
- Package:
- 64-LQFP
- Datasheet:
-
TL16CP754CIPMRG4.pdf
- Description:
- IC QUAD UART W/64B FIFO 64-LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,177
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Product details
Overview
TL16CP754CIPMRG4 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 used in industrial serial gateways requiring high-throughput RS-232/RS-485 multi-port expansion.
For engineers reviewing the TL16CP754CIPMRG4 datasheet, TL16CP754CIPMRG4 pinout, TL16CP754CIPMRG4 application, or TL16CP754CIPMRG4 equivalent, key selection considerations include FIFO trigger programmability, auto-RTS/CTS timing control via TCR register, IrDA mode support, and 64-pin TQFP package compatibility with ST16C654/TL16C754B designs.
Technical Context
The TL16CP754CIPMRG4 implements four independent UART channels, each with dedicated 64-byte TX/RX FIFOs, error flag reporting, and fully prioritized six-level interrupt architecture. Its enhanced feature register (EFR) enables Xon/Xoff character programming, false start-bit detection, and IrDA-compatible output drive.
It supports multiple supply voltages (1.8 V to 5 V), programmable baud-rate generation with prescaler divide-by-1 or -4, and RS-485 half-duplex driver control via DTR outputs. RXRDY/TXRDY status signals are wire-ORed across all four channels and active-low for DMA coordination.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| UART Count | 4 independent channels with separate register sets and FIFOs |
| FIFO Depth | 64-byte transmit and receive buffers per channel, including 3-bit error status per RX byte |
| Max Data Rate | 3 Mbps at 5 V with 48-MHz oscillator input; 2 Mbps at 3.3 V with 32-MHz input |
| Supply Voltage Range | 1.8 V, 2.5 V, 3.3 V, or 5 V operation - fully characterized across all rails |
| Interrupt Levels | Six prioritized interrupt sources including RX timeout, modem status, and Xoff detection |
| Flow Control | Hardware (auto-RTS/CTS) and software (programmable Xon1/Xoff1, Xon2/Xoff2) with HALT/RESUME trigger levels in TCR |
| Package | 64-pin TQFP (PM), RoHS-compliant, 10 mm × 10 mm body, 0.5 mm pitch |
Pinout & Package
TL16CP754CIPMRG4 is housed in a 64-pin TQFP (PM) package with exposed thermal pad. Pin functions are defined per Table 1 of SLLS644H Rev. J (January 2014), supporting parallel CPU interface, individual channel CS/INT lines, and full modem control signaling (CTS/RTS/DSR/DTR/RI/CD).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A2 | Address select inputs | Select internal register address (0–7) for shared 8-bit data bus access |
| CSA–CSD | Channel chip select (active low) | Enable register access to UART A, B, C, or D independently |
| INTA–INTD | Individual channel interrupt outputs | Active-high, 3-state interrupts per UART; controlled by MCR[3] and IER bits |
| TXA–TXD / RXA–RXD | Serial data outputs/inputs | Four independent UART TX/RX pairs; support IrDA mode with inverted logic |
| DTRA–DTRD / RTSA–RTSD | Modem control outputs | Software-controllable DTR/RTS; RS-485 driver enable via DTR in half-duplex mode |
| RXRDY / TXRDY | Global FIFO status outputs | Active-low wire-ORed signals indicating any RX/TX FIFO has reached trigger level or timeout |
Key Features
| Feature | Design Value |
|---|---|
| Programmable FIFO trigger levels | Independent RX/TX DMA and interrupt thresholds configurable via FCR and TLR registers |
| Auto-RTS/CTS with HALT/RESUME logic | RTS deassertion at RX FIFO HALT level (TCR[3:0]) and reassertion at RESUME level (TCR[7:4]) prevents overrun |
| IrDA physical layer support | TX outputs drive low during idle in IrDA mode; compatible with 115.2 kbps SIR protocol |
| RS-485 half-duplex control | DTR outputs directly enable external RS-485 transceivers; no external logic required |
| False start-bit detection | Rejects spurious leading edges before valid start bit, improving noise immunity on long serial lines |
| Line break generation/detection | Transmit continuous low state for ≥2.5 character times; receiver detects and flags break condition in LSR |
Applications
| Industrial Serial Gateway | Multi-Port RS-232 Terminal Server |
|---|---|
|
Use Scenario: Central controller aggregating data from 4 PLCs over isolated RS-232 links with variable baud rates and legacy protocol framing. IC Role / Device Role / Timing Role: Quad UART handles concurrent full-duplex communication; 64-byte FIFOs absorb burst traffic; auto-RTS prevents buffer overflow under high-latency host polling. Use Value: Eliminates per-port microcontroller overhead; reduces host interrupt load by >70% versus single-byte FIFO UARTs; supports hot-plug detection via RI/CD monitoring. |
Use Scenario: Rack-mounted terminal server providing remote console access to 4 network devices via DB9 ports. IC Role / Device Role / Timing Role: TL16CP754CIPMRG4 acts as serial interface bridge; software flow control (Xon/Xoff) manages telnet session pacing; RXRDY/TXRDY coordinate DMA transfers to Ethernet MAC. Use Value: Enables zero-drop packet forwarding at 115.2 kbps across all ports; eliminates command loss during simultaneous SSH sessions; supports firmware updates via serial bootloader. |
| RS-485 Building Automation Hub | Medical Device Serial Interface Module |
|
Use Scenario: HVAC controller communicating with 4 temperature sensors and actuators over daisy-chained RS-485 bus using Modbus RTU. IC Role / Device Role / Timing Role: UART channels operate in RS-485 mode; DTR pins control direction of external transceivers; programmable stop bits (1/1.5/2) match legacy sensor timing. Use Value: Single-chip solution replaces discrete logic + four UARTs; eliminates external direction-control glue logic; ensures deterministic bus turnaround via TCR-driven RTS timing. |
Use Scenario: Patient monitor interfacing with ECG, SpO₂, and NIBP modules via isolated UART links compliant with IEC 60601-1. IC Role / Device Role / Timing Role: Provides galvanically isolated serial channels; sleep mode reduces standby current to <10 µA; complete status reporting enables real-time fault logging. Use Value: Meets medical EMC requirements via clean signal edges and low EMI; supports fail-safe diagnostics via break detection and parity error flags; certified for 85°C industrial temp grade. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad UART applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL16C754CIPM | Lacks RXRDY/TXRDY global status outputs; otherwise identical register map, FIFO depth, and feature set | Not suitable for DMA-based systems requiring centralized FIFO ready signaling | Select TL16CP754CIPMRG4 when RXRDY/TXRDY are required for efficient DMA coordination across all four ports |
| ST16C654CJ | Pin-compatible but lacks IrDA mode, auto-RTS HALT/RESUME logic, and TCR register; max 1.5 Mbps at 5 V | Lower-cost option for basic quad UART needs without advanced flow control or infrared support | Choose TL16CP754CIPMRG4 when IrDA, precise RTS timing, or >1.5 Mbps operation is required |
Compared with TL16C754CIPM and ST16C654CJ, TL16CP754CIPMRG4 uniquely delivers global FIFO-ready signaling, programmable RTS activation/deactivation thresholds, and full IrDA compliance - enabling higher throughput, lower host CPU load, and broader physical-layer interoperability in embedded serial infrastructure.
Availability
TL16CP754CIPMRG4 is available at Aetrix Electronics and suitable for industrial serial gateways, multi-port terminal servers, RS-485 building automation hubs, and medical device interface modules requiring stable component supply and long-term manufacturability.
Supply support for TL16CP754CIPMRG4 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 communications interface ICs.
The TL16CP754CIPMRG4 belongs to TI's legacy UART product line designed for high-reliability, multi-channel serial communication in industrial control, medical instrumentation, and networking infrastructure where deterministic timing and robust error handling are critical.
FAQ
What is the maximum supported data rate for TL16CP754CIPMRG4 at 3.3-V operation?
The TL16CP754CIPMRG4 supports up to 2 Mbps at 3.3-V operation when driven by a 32-MHz oscillator input clock. This is explicitly specified in the "Support up to" section of the datasheet (SLLS644H, January 2014). The device achieves this rate using its internal prescaler and programmable baud-rate generator, with full 64-byte FIFO buffering maintained at all supported speeds. TL16CP754CIPMRG4 maintains timing integrity and error-free transmission within this limit under industrial temperature conditions.
Does TL16CP754CIPMRG4 support RS-485 half-duplex operation, and how is driver control implemented?
Yes, TL16CP754CIPMRG4 supports RS-485 half-duplex mode via its DTR outputs (DTRA–DTRD), which can directly enable external RS-485 transceivers. The datasheet confirms this capability in the "RS-485 Mode Support" feature list and describes DTR usage for driver control in the terminal functions table. No external logic is needed - TL16CP754CIPMRG4 asserts DTR low to enable transmit and releases it (high) to enable receive, synchronized with RTS/CTS handshaking when auto-flow is enabled.
How does the auto-RTS function in TL16CP754CIPMRG4 prevent RX FIFO overrun?
TL16CP754CIPMRG4 implements auto-RTS with dual programmable thresholds stored in the Transmission Control Register (TCR): HALT level (TCR[3:0]) deasserts RTS when RX FIFO reaches that depth, and RESUME level (TCR[7:4]) reasserts RTS once space becomes available. This closed-loop control, documented in Figures 1 and 3 of SLLS644H, ensures the remote transmitter pauses before the local RX FIFO overflows - eliminating overrun errors even under high-latency host servicing. TL16CP754CIPMRG4 guarantees deterministic behavior without software intervention.
Is TL16CP754CIPMRG4 pin-compatible with the ST16C654 family, and what enhancements does it add?
Yes, TL16CP754CIPMRG4 is explicitly stated as ST16C654/654D pin-compatible in its datasheet features. Enhancements include 64-byte FIFOs (vs. 64-byte in ST16C654D but not base ST16C654), IrDA mode support, false start-bit detection, programmable sleep mode, and the Transmission Control Register (TCR) for auto-RTS HALT/RESUME control. These are confirmed in the "Additional Enhancements" section and functional description of SLLS644H. TL16CP754CIPMRG4 retains full register-level compatibility while adding critical reliability and efficiency features.
What are the power supply voltage options supported by TL16CP754CIPMRG4, and are they all fully characterized?
TL16CP754CIPMRG4 supports 1.8-V, 2.5-V, 3.3-V, and 5-V supply operation, and all four voltage grades are fully characterized across the –40°C to 85°C industrial temperature range, as stated in the "FEATURES" and "DESCRIPTION" sections of SLLS644H. Electrical parameters including timing, FIFO behavior, and interrupt latency are guaranteed per voltage grade - no derating or undocumented limitations apply. TL16CP754CIPMRG4 enables direct integration into mixed-voltage systems without level-shifting circuitry.
TL16CP754CIPMRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-LQFP
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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)
TL16CP754CIPMRG4 FAQ
1.How can I place an order for TL16CP754CIPMRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TL16CP754CIPMRG4 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 TL16CP754CIPMRG4 reliable?
The price and inventory of TL16CP754CIPMRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL16CP754CIPMRG4 is usually 5 days.
3.What payment methods are accepted for TL16CP754CIPMRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL16CP754CIPMRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL16CP754CIPMRG4?
TL16CP754CIPMRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL16CP754CIPMRG4 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 TL16CP754CIPMRG4?
For technical support, including TL16CP754CIPMRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL16CP754CIPMRG4 requirements.
6.How does Aetrix verify that TL16CP754CIPMRG4 is sourced from the original manufacturer or authorized distributors?
All TL16CP754CIPMRG4 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 TL16CP754CIPMRG4 meets industry standards.
7.What is the process for return or replacement of TL16CP754CIPMRG4?
All TL16CP754CIPMRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TL16CP754CIPMRG4, 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 TL16CP754CIPMRG4 part is unused and in its original packaging.
Return procedure for TL16CP754CIPMRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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