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NXP Semiconductors LPC2294JBD144,551
- Part No.:
- LPC2294JBD144,551
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
LPC2294JBD144,551.pdf
- Description:
- IC MCU 16/32B 256KB FLSH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,395
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Product details
Overview
LPC2294JBD144,551 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. It targets automotive control units, industrial PLCs, medical monitoring systems, and fault-tolerant maintenance buses requiring deterministic real-time response and dual-voltage I/O (3.3 V I/O / 1.8 V core).
For engineers reviewing the LPC2294JBD144,551 datasheet, LPC2294JBD144,551 pinout, LPC2294JBD144,551 application, or LPC2294JBD144,551 equivalent, key selection criteria include CAN channel count (4), temperature grade (−40 °C to +125 °C), external memory interface support (4 banks, up to 16 MB each), Fast GPIO capability, and ISP/IAP flash programming via on-chip bootloader.
Technical Context
The LPC2294JBD144,551 integrates an ARM7TDMI-S core with EmbeddedICE-RT and Embedded Trace interfaces for real-time debugging and instruction tracing. Its 128-bit wide memory interface and accelerator architecture enable full 60 MHz execution speed in 32-bit mode, while Thumb mode reduces code size by >30 % with minimal performance loss.
It features two 32-bit general-purpose timers (each with four capture/compare channels), a six-output PWM unit, RTC, watchdog, and a Vectored Interrupt Controller (VIC) supporting configurable priorities and vector addresses. The external memory controller supports 8/16/32-bit data width across four banks, and the dual power supply separates 1.8 V core logic from 3.3 V I/O with 5 V tolerant pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM7TDMI-S, 32-bit RISC, supports both 32-bit ARM and 16-bit Thumb instruction sets |
| Max Clock Speed | 60 MHz - achieved via programmable on-chip PLL with 100 µs settling time |
| Memory | 256 kB on-chip flash (ISP/IAP capable); 16 kB on-chip SRAM; external memory interface with 4 banks, up to 16 MB per bank |
| ADC | Eight-channel 10-bit successive approximation ADC; minimum conversion time 2.44 µs; inputs AIN0–AIN7 mapped to dedicated pins |
| CAN Interfaces | Four independent CAN 2.0B-compliant controllers with advanced acceptance filters - enables multi-bus automotive diagnostics or redundant fieldbus nodes |
| I/O Voltage | 1.8 V ±0.15 V core supply (VDD(1V8)); 3.0–3.6 V I/O supply (VDD(3V3)) with 5 V tolerant pads on all GPIO |
| Operating Temp | −40 °C to +125 °C - qualified for under-hood automotive and high-temperature industrial environments |
Pinout & Package
LPC2294JBD144,551 uses a plastic low profile quad flat package (LQFP144) with 144 leads, body dimensions 20 × 20 × 1.4 mm (SOT486-1). All pins are 5 V tolerant when configured for digital I/O, with built-in glitch filtering on selected inputs and open-drain I²C-compatible outputs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0[0]/TXD0/PWM1 | UART0 transmit / PWM output | Dual-function pin: primary UART0 serial output or PWM channel 1; supports TTL-level signaling with hysteresis |
| P0[27]–P0[30], P2[30]–P2[31], P3[28]–P3[29] | ADC input channels AIN0–AIN7 | Eight dedicated analog inputs; each connected directly to ADC without multiplexer switching delay; AIN4–AIN7 share pins with D30/D31/BLS2/BLS3 |
| P0[24]/TD2, P0[23]/RD2, P0[12]/RD4, P0[13]/TD4, P0[21]/RD3, P0[22]/TD3 | CAN2–CAN4 transceiver I/O | Three independent CAN bus pairs (CAN2, CAN3, CAN4); each pair includes separate TX (TDx) and RX (RDx) pins; no shared resources between channels |
| P3[0]–P3[23], P2[0]–P2[31] | External memory interface | Full 24-bit address bus (A0–A23), 32-bit data bus (D0–D31), four chip selects (CS0–CS3), byte lane selects (BLS0–BLS3), and control signals (OE, WE) |
| P1[25]–P1[31], P1[16]–P1[24] | Trace and debug interface | Eight-pin trace port (TRACEPKT0–3, TRACESYNC, TRACECLK) and six-pin JTAG (TRST, TCK, TMS, TDI, TDO, RTCK) - enabled only during debug mode |
Key Features
| Feature | Design Value |
|---|---|
| Fast GPIO | Port pin toggle rate up to 3.5× faster than legacy LPC2xxx devices; allows real-time bit-banging of protocols like SPI or 1-Wire without timer overhead |
| Dedicated ADC result registers | Reduces interrupt latency by eliminating register read/write cycles during conversion completion; critical for closed-loop motor control sampling at ≥10 kHz |
| Fractional baud rate generator | Enables precise UART0/1 baud rates (e.g., 1 Mbps, 1.5 Mbps) across wide clock ranges without external crystal tuning |
| SSP controller | Hardware-buffered serial peripheral interface supporting SPI, Microwire, and 4-wire SSI; eliminates software-driven bit-banging for sensor or display interfaces |
| Diversified Code Read Protection (CRP) | Three security levels (CRP1–CRP3) prevent unauthorized flash readout or ISP access; CRP3 disables all debug and ISP functions permanently |
Applications
| Automotive Body Control Module | Industrial PLC I/O Expansion |
|---|---|
Use Scenario: Centralized control of door locks, lighting, wipers, and HVAC using CAN bus communication with multiple ECUs. IC Role / Device Role / Timing Role: Main application processor executing real-time task scheduler, managing four CAN interfaces for inter-ECU messaging, and sampling analog sensors (temperature, voltage) via 10-bit ADC. Use Value: −40 °C to +125 °C rating ensures operation in engine bay proximity; 5 V tolerant I/O simplifies interface to legacy automotive sensors; ISP/IAP enables in-field firmware updates over CAN. | Use Scenario: Modular I/O base unit connecting discrete digital/analog inputs and outputs to a central controller via industrial fieldbus. IC Role / Device Role / Timing Role: Local intelligence node handling local analog conditioning (via 8-channel ADC), digital signal acquisition, and protocol translation (e.g., Modbus RTU over UART to CANopen). Use Value: External memory interface supports local data buffering (e.g., 16 MB SDRAM) for transient event logging; Fast GPIO enables precise timing of pulse-width encoded inputs; four CAN channels allow redundant bus operation. |
| Medical Patient Monitor Front-End | Fault-Tolerant Maintenance Bus Node |
Use Scenario: Acquisition and preprocessing of biopotential signals (ECG, SpO₂) in portable diagnostic equipment with battery backup. IC Role / Device Role / Timing Role: Signal acquisition controller interfacing with analog front-end ICs, performing ADC oversampling and digital filtering before forwarding processed data via UART or CAN. Use Value: Dedicated ADC result registers minimize interrupt jitter for consistent 1 kHz sampling; 10-bit resolution meets IEC 60601-2-27 ECG accuracy requirements; low-power modes extend battery life during standby. | Use Scenario: Standalone diagnostic node on aircraft or rail vehicle maintenance bus, continuously monitoring health of subsystems and reporting faults. IC Role / Device Role / Timing Role: Fault detection and reporting agent with dual CAN interfaces: one for primary bus communication, another for isolated backup diagnostics channel. Use Value: Four independent CAN controllers allow simultaneous connection to primary, backup, and test buses; embedded watchdog and RTC ensure autonomous recovery and timestamped event logging without host intervention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC2368FBD100,551 | 100-pin LQFP; 512 kB flash; USB 2.0 device; no external memory interface; 2 CAN channels | Better suited for USB-connected embedded devices with moderate memory needs; lacks external bus and two CAN channels | Select when USB connectivity is required and external memory expansion is unnecessary |
| LPC2387FBD180,551 | 180-pin LQFP; 512 kB flash; USB 2.0 device; external memory interface; 2 CAN channels; 10-bit ADC (8 ch) | Higher pin count and flash capacity; same external bus but only two CAN interfaces; adds USB 2.0 | Select when USB host/device capability is needed alongside external memory, but four-CAN is not mandatory |
Compared with LPC2294JBD144,551, LPC2368FBD100,551 offers USB but sacrifices two CAN channels and external memory support, while LPC2387FBD180,551 adds USB and flash but retains only two CAN interfaces - making LPC2294JBD144,551 uniquely suitable for high-integration, multi-CAN automotive or industrial control where external memory and thermal robustness are essential.
Availability
LPC2294JBD144,551 is available at Aetrix Electronics and suitable for automotive control units, industrial PLCs, and medical monitoring systems requiring stable component supply, long-term lifecycle assurance, and guaranteed availability through extended manufacturing programs.
Supply support for LPC2294JBD144,551 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 applications.
The LPC2294 belongs to NXP's legacy LPC2000 ARM7-based microcontroller family, designed specifically for deterministic real-time control in harsh environments - emphasizing CAN-rich automotive networking, high-temperature operation, and robust in-system programmability.
FAQ
What is the operating temperature range of the LPC2294JBD144,551?
The LPC2294JBD144,551 is rated for −40 °C to +125 °C operation, qualifying it for under-hood automotive applications and high-temperature industrial environments. This extended range is confirmed in Table 2 of the official NXP datasheet (Rev. 8, June 2011) and distinguishes it from commercial-grade variants like the LPC2292, which operate up to +85 °C. The LPC2294JBD144,551 maintains full functionality across this range, including all four CAN controllers and ADC performance.
Does the LPC2294JBD144,551 support in-system programming (ISP)?
Yes, the LPC2294JBD144,551 supports In-System Programming (ISP) via its on-chip bootloader, enabling flash reprogramming without removing the device from the target board. It allows single-sector or full-chip erase in 400 ms and 256-byte programming in 1 ms. ISP is performed through UART0 using standard serial commands, and the LPC2294JBD144,551 requires no external hardware programmer - only a UART interface and appropriate boot pin configuration (BOOT0/BOOT1).
How many CAN interfaces does the LPC2294JBD144,551 provide, and are they fully independent?
The LPC2294JBD144,551 provides four fully independent CAN 2.0B-compliant controllers (CAN1–CAN4), each with dedicated transmit (TDx) and receive (RDx) pins and its own acceptance filter. Unlike shared-resource implementations, these controllers operate concurrently without arbitration or resource contention - verified in the block diagram (Fig 1) and pin description table (Table 4) of the NXP datasheet. This enables true multi-bus architectures in automotive gateways or redundant industrial networks.
What is the ADC resolution and conversion speed of the LPC2294JBD144,551?
The LPC2294JBD144,551 integrates an eight-channel 10-bit successive approximation ADC with a minimum conversion time of 2.44 µs per sample, corresponding to a maximum sampling rate of approximately 409.8 kSPS. All eight analog inputs (AIN0–AIN7) are mapped to dedicated pins with direct connection to the ADC, avoiding multiplexer-induced delays. This specification is explicitly stated in Section 2.2 ("Key features common for all devices") of the NXP datasheet (Rev. 8).
Is the LPC2294JBD144,551 pin-compatible with other LPC2294 variants such as LPC2294HBD144/01?
Yes, the LPC2294JBD144,551 is pin-compatible with all LQFP144-packaged LPC2294 variants, including LPC2294HBD144 and LPC2294HBD144/01, as confirmed in Section 5.1 ("Pinning") of the NXP datasheet: "Pin configuration is identical for devices with and without /00 and /01 suffixes." The 'J' prefix denotes the industrial temperature grade (−40 °C to +125 °C), matching the 'H'-suffixed versions, and all share identical LQFP144 mechanical and electrical pinouts.
LPC2294JBD144,551 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 144-LQFP
- Series:
- LPC2200
- Packaging:
- Bag
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC2294JBD144,551 FAQ
1.How can I place an order for LPC2294JBD144,551 through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC2294JBD144,551 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 LPC2294JBD144,551 reliable?
The price and inventory of LPC2294JBD144,551 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC2294JBD144,551 is usually 5 days.
3.What payment methods are accepted for LPC2294JBD144,551?
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LPC2294JBD144,551 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC2294JBD144,551 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 LPC2294JBD144,551?
For technical support, including LPC2294JBD144,551 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC2294JBD144,551 requirements.
6.How does Aetrix verify that LPC2294JBD144,551 is sourced from the original manufacturer or authorized distributors?
All LPC2294JBD144,551 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 LPC2294JBD144,551 meets industry standards.
7.What is the process for return or replacement of LPC2294JBD144,551?
All LPC2294JBD144,551 units undergo pre-shipment inspection (PSI). If there is an issue with LPC2294JBD144,551, 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 LPC2294JBD144,551 part is unused and in its original packaging.
Return procedure for LPC2294JBD144,551:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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