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NXP Semiconductors LPC2294HBD144,551
- Part No.:
- LPC2294HBD144,551
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
LPC2294HBD144,551.pdf
- Description:
- IC MCU 16/32B 256KB FLSH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,575
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Product details
Overview
LPC2294HBD144,551 from NXP Semiconductors is a 16/32-bit ARM7TDMI-S microcontroller in LQFP144 package, featuring 256 kB flash, 16 kB SRAM, four CAN channels, eight-channel 10-bit ADC (2.44 µs conversion), and 60 MHz CPU clock with 100 µs PLL settling time - deployed in automotive control units and industrial fault-tolerant maintenance buses.
For engineers reviewing the LPC2294HBD144,551 datasheet, LPC2294HBD144,551 pinout, LPC2294HBD144,551 application, or LPC2294HBD144,551 equivalent, key selection criteria include extended temperature range (−40 °C to +125 °C), 5 V-tolerant GPIOs (up to 112 pins), external memory interface (four banks, up to 16 MB each), and dual power supply (1.8 V core / 3.3 V I/O).
Technical Context
The LPC2294HBD144,551 implements ARM7TDMI-S core with real-time emulation and Embedded Trace support, enabling on-chip debugging via JTAG and trace packet output through dedicated P1[16–19] and P1[20,24] pins. Its memory subsystem uses a 128-bit wide interface with accelerator architecture for full-speed 60 MHz 32-bit code execution.
Peripheral integration includes two 32-bit timers (four capture/compare channels each), six PWM outputs, RTC, watchdog, Vectored Interrupt Controller (VIC), and configurable external memory controller supporting 8/16/32-bit data width across four banks - all accessible via AMBA AHB/APB interconnect.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM7TDMI-S, 16/32-bit RISC, supports Thumb mode for 30 % code size reduction |
| Max Clock Speed | 60 MHz CPU frequency enabled by on-chip PLL with 100 µs settling time |
| Memory | 256 kB on-chip flash (ISP/IAP capable), 16 kB SRAM, 128-bit wide interface |
| ADC | Eight-channel 10-bit ADC with 2.44 µs conversion time; inputs AIN0–AIN7 mapped to P0/P2/P3 pins |
| CAN Interfaces | Four independent CAN channels (RD1/TD1 through RD4/TD4), with advanced acceptance filters |
| I/O Capability | Up to 112 GPIOs (5 V tolerant), nine external interrupt pins (EINT0–EINT3 plus shared functions) |
| Operating Temperature | −40 °C to +125 °C, qualified for under-hood automotive and high-temperature industrial use |
Pinout & Package
LQFP144 package: plastic low profile quad flat package, 144 leads, body 20 × 20 × 1.4 mm (SOT486-1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0[0]/TXD0/PWM1 | UART0 transmit / PWM output | Dedicated UART0 TX path and PWM1 signal; 5 V tolerant digital I/O with 10 ns slew rate control |
| P0[27]–P0[30], P2[30]–P2[31], P3[28]–P3[29] | ADC input channels AIN0–AIN7 | Eight analog inputs directly connected to ADC; digital section disabled when used as ADC input |
| P0[24]/TD2, P0[25]/RD2, P0[12]/RD4, P0[13]/TD4, P0[21]/RD3, P0[22]/TD3 | CAN2–CAN4 transceiver I/O | Dedicated CAN RX/TX pins per channel; no shared function - ensures deterministic timing for multi-CAN routing |
| P2[26]/BOOT0, P2[27]/BOOT1 | Boot configuration inputs | Set boot source during reset: internal flash (11), or 8/16/32-bit external memory on CS0 |
| P1[25]/EXTIN0 | External trigger input | Edge-sensitive input for timer/counter synchronization; internal pull-up enables default high state |
Key Features
| Feature | Design Value |
|---|---|
| Fast GPIO ports | Port pin toggle up to 3.5× faster than legacy ARM7 devices; read-modify-write latency minimized for real-time I/O control |
| Dedicated ADC result registers | Reduces interrupt overhead by eliminating software register reads; supports burst-mode sampling without CPU intervention |
| Fractional baud rate generator | Enables precise UART0/1 baud rates across wide clock ranges (e.g., 115.2 kbps at 60 MHz CCLK) without external crystal tuning |
| EmbeddedICE-RT & Trace | Real-time instruction tracing via TRACESYNC, TRACECLK, and TRACEPKT[0–3]; enables non-intrusive debug in safety-critical firmware |
| Configurable external memory interface | Four independent banks (CS0–CS3), each supporting 8/16/32-bit data width and up to 16 MB addressing - ideal for NOR/NAND flash or SRAM expansion |
Applications
| Automotive Powertrain Control | Industrial CAN Gateway |
|---|---|
Use Scenario: Real-time engine management unit monitoring crankshaft position, throttle angle, and exhaust gas composition using synchronized ADC sampling and CAN message arbitration. IC Role / Device Role / Timing Role: Central MCU executing closed-loop PID control at 10 kHz, managing four CAN buses for sensor fusion and actuator command distribution. Use Value: −40 °C to +125 °C rating ensures reliability in under-hood environments; four independent CAN controllers eliminate external bus bridges and reduce BOM count. |
Use Scenario: Protocol translation between CAN FD fieldbus and Modbus RTU over RS-485 in factory automation systems. IC Role / Device Role / Timing Role: Dual-role gateway: receives CAN messages on CAN1/CAN2, processes payload in SRAM, and forwards via UART1 with hardware flow control. Use Value: Hardware handshake (CTS1/RTS1) and fractional baud rate generator ensure error-free serial throughput; 112 GPIOs enable status LED and diagnostic button interfaces. |
| Medical Diagnostic Equipment | Fault-Tolerant Maintenance Bus |
Use Scenario: Portable ultrasound device requiring synchronized analog front-end sampling (8-channel ADC), real-time image preprocessing, and USB host communication via external bridge IC. IC Role / Device Role / Timing Role: Signal acquisition controller: ADC triggers timed by MAT0/MAT1 match outputs; results stored in SRAM before DMA transfer to external processor. Use Value: 2.44 µs ADC conversion enables >400 kSPS aggregate sampling; 5 V-tolerant I/O simplifies interface to legacy analog sensors without level shifters. |
Use Scenario: Redundant maintenance bus in railway signaling systems where dual CAN paths monitor critical subsystem health and trigger fail-safe shutdown. IC Role / Device Role / Timing Role: Fault-monitoring node: continuously validates CRC on CAN2/CAN3 messages while logging anomalies to flash via IAP routines. Use Value: Diversified Code Read Protection (CRP) prevents unauthorized firmware access; watchdog and RTC ensure deterministic recovery after brown-out events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ARM7-based microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC2292FBD144/01 | Two CAN channels, Fast GPIO/SSP/Enhanced UART enabled, −40 °C to +85 °C | Suitable for commercial-grade gateways with lower thermal requirements and reduced CAN node count | Select when four CAN interfaces are unnecessary and cost sensitivity outweighs extended temperature need |
| LPC2294HBD144/00 | Same 4-CAN, 256 kB flash, −40 °C to +125 °C, but lacks Fast GPIO/SSP/Enhanced UART features | Targeted at cost-optimized automotive modules where enhanced peripheral speed is not required | Choose for legacy designs migrating from /00 variant where software compatibility is prioritized over new peripheral acceleration |
Compared with LPC2294HBD144,551, the LPC2292FBD144/01 trades CAN count and temperature range for enhanced serial peripherals, while the LPC2294HBD144/00 retains identical robustness but omits performance-boosting GPIO and SSP features - making the /551 variant optimal for thermally demanding, multi-bus automotive control.
Availability
LPC2294HBD144,551 is available at Aetrix Electronics and suitable for automotive powertrain control, industrial CAN gateways, medical diagnostic equipment, and fault-tolerant maintenance buses requiring stable component supply across extended temperature operation.
Supply support for LPC2294HBD144,551 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The LPC2294HBD144,551 belongs to the LPC2000 ARM7 microcontroller family, designed specifically for real-time embedded control in harsh environments - emphasizing CAN robustness, extended temperature operation, and in-system programmability.
FAQ
What is the operating voltage range for LPC2294HBD144,551?
The LPC2294HBD144,551 uses dual power supplies: 1.65 V to 1.95 V (1.8 V ±0.15 V) for the CPU core (VDD(1V8)), and 3.0 V to 3.6 V (3.3 V ±10 %) for I/O (VDD(3V3)). All I/O pads are 5 V tolerant, enabling direct interfacing with legacy 5 V logic without level shifters - a key design advantage in mixed-voltage industrial systems.
Does LPC2294HBD144,551 support in-system programming (ISP)?
Yes, the LPC2294HBD144,551 supports In-System Programming via its on-chip bootloader, allowing flash updates over UART0 without removing the device from the PCB. ISP operations include single-sector erase (400 ms) and 256-byte programming (1 ms), enabling field firmware upgrades and secure remote maintenance for deployed LPC2294HBD144,551 units.
How many CAN interfaces does LPC2294HBD144,551 provide, and are they independent?
The LPC2294HBD144,551 provides four fully independent CAN 2.0B-compliant interfaces (CAN1–CAN4), each with dedicated RX/TX pins (e.g., RD1/TD1 through RD4/TD4) and advanced acceptance filtering. Unlike multiplexed implementations, these channels operate concurrently without resource contention - essential for time-critical automotive domain controllers using LPC2294HBD144,551.
What is the ADC resolution and conversion speed of LPC2294HBD144,551?
The LPC2294HBD144,551 integrates an eight-channel 10-bit successive-approximation ADC with a minimum conversion time of 2.44 µs per sample. Inputs AIN0–AIN7 map to specific pins on Port 0, Port 2, and Port 3, and the ADC operates independently of CPU load due to dedicated result registers - ensuring deterministic sampling for control loops running on LPC2294HBD144,551.
Is LPC2294HBD144,551 pin-compatible with other LPC229x variants in LQFP144 package?
Yes, the LPC2294HBD144,551 shares identical LQFP144 pinout with LPC2292FBD144/01 and LPC2294HBD144/00, including matching signal assignments for GPIO, CAN, UART, ADC, and external memory interface. This allows drop-in replacement in existing layouts - provided firmware accounts for differences in peripheral enablement (e.g., Fast GPIO) and temperature rating.
LPC2294HBD144,551 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 144-LQFP
- Series:
- LPC2200
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM7®
- Core Size:
- 16/32-Bit
- Speed:
- 60MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, Microwire, SPI, SSI, SSP, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 112
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.65V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC2294HBD144,551 FAQ
1.How can I place an order for LPC2294HBD144,551 through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC2294HBD144,551 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 LPC2294HBD144,551 reliable?
The price and inventory of LPC2294HBD144,551 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC2294HBD144,551 is usually 5 days.
3.What payment methods are accepted for LPC2294HBD144,551?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC2294HBD144,551 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC2294HBD144,551?
LPC2294HBD144,551 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC2294HBD144,551 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 LPC2294HBD144,551?
For technical support, including LPC2294HBD144,551 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC2294HBD144,551 requirements.
6.How does Aetrix verify that LPC2294HBD144,551 is sourced from the original manufacturer or authorized distributors?
All LPC2294HBD144,551 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 LPC2294HBD144,551 meets industry standards.
7.What is the process for return or replacement of LPC2294HBD144,551?
All LPC2294HBD144,551 units undergo pre-shipment inspection (PSI). If there is an issue with LPC2294HBD144,551, 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 LPC2294HBD144,551 part is unused and in its original packaging.
Return procedure for LPC2294HBD144,551:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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