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NXP Semiconductors LPC2194HBD64/01,15
- Part No.:
- LPC2194HBD64/01,15
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
LPC2194HBD64/01,15.pdf
- Description:
- IC MCU 16/32B 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,331
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Product details
Overview
LPC2194HBD64/01,15 from NXP Semiconductors is a 16/32-bit ARM7TDMI-S microcontroller in LQFP64 package, featuring 256 kB flash, 16 kB SRAM, four CAN interfaces, 4-channel 10-bit ADC (2.44 µs conversion), and 46 GPIO pins with 5 V tolerance. It operates at up to 60 MHz with dual power supplies (1.8 V core / 3.3 V I/O) and supports automotive CAN gateway and industrial protocol converter applications.
For engineers reviewing the LPC2194HBD64/01,15 datasheet, LPC2194HBD64/01,15 pinout, LPC2194HBD64/01,15 application, or LPC2194HBD64/01,15 equivalent, key selection criteria include multi-CAN bus arbitration capability, fast GPIO toggle performance (3.5× baseline), dedicated ADC result registers, SSP interface availability, and -40 °C to +125 °C operating range.
Technical Context
The LPC2194HBD64/01,15 implements ARM7TDMI-S core with Thumb instruction set for code density optimization and real-time emulation via EmbeddedICE-RT and Embedded Trace interfaces. Its memory subsystem uses a 128-bit wide interface with accelerator architecture enabling full 60 MHz execution speed.
Peripheral integration includes four independent CAN controllers with shared global acceptance filter supporting both 11-bit and 29-bit identifiers, two UARTs with fractional baud rate generators and hardware flow control, and a buffered SSP controller supporting SPI/SSI/Microwire protocols - all accessible via configurable Pin Connect Block.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM7TDMI-S 16/32-bit RISC processor with Thumb mode support for 30 % smaller code size at minimal performance penalty. |
| Max Clock Speed | 60 MHz via on-chip PLL with 100 µs settling time; enables deterministic real-time response in automotive timing-critical tasks. |
| Memory | 256 kB ISP/IAP flash (100k erase/write cycles, 20-year retention) and 16 kB SRAM; supports field firmware updates without external programmer. |
| CAN Interfaces | Four fully independent CAN 2.0B controllers (ISO 11898-1 compliant), each supporting up to 1 Mbit/s data rate and integrated acceptance filtering. |
| ADC | Four-channel 10-bit successive approximation ADC with 2.44 µs conversion time, 0–3 V input range, and dedicated result registers per channel. |
| I/O Capability | 46 GPIO pins with 5 V tolerance, nine external interrupt inputs, and Fast GPIO registers enabling 3.5× faster pin toggling than legacy LPC2000 devices. |
| Operating Range | -40 °C to +125 °C ambient temperature; dual supply: 1.65–1.95 V (core) and 3.0–3.6 V (I/O) with separate analog domains (VDDA(1V8), VDDA(3V3)). |
Pinout & Package
LPC2194HBD64/01,15 is housed in a plastic low-profile quad flat package (LQFP64), 10 × 10 × 1.4 mm (SOT314-2), with 64 leads and exposed thermal pad. The package supports reflow soldering and provides mechanical stability for automotive and industrial environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0[0]/TXD0/PWM1 | UART0 transmit / PWM output | Primary serial debug interface and motor control signal generation; TTL-level output compatible with standard RS-232 transceivers. |
| P0[21]/PWM5/RD3/CAP1[3] | CAN3 receive / PWM / capture input | Dedicated CAN3 Rx pin enables concurrent multi-bus monitoring; dual-function capability allows flexible peripheral allocation in gateways. |
| P0[22]/TD3/CAP0[0]/MAT0[0] | CAN3 transmit / timer match output | Drives CAN3 differential bus; simultaneous use as Timer 0 match output supports synchronized event triggering across CAN and timing domains. |
| P0[25]/RD1 | CAN1 receive | Isolated CAN1 Rx input with internal termination support; enables direct connection to ISO 11898-compliant physical layer transceivers. |
| TD1 | CAN1 transmit | Dedicated CAN1 Tx output; routed separately from receive path to minimize coupling and ensure signal integrity in high-noise automotive environments. |
| VDD(1V8) | Core power supply | 1.8 V ±0.15 V supply for CPU and digital logic; requires low-noise regulation and local decoupling to maintain PLL stability and timing accuracy. |
| VDD(3V3) | I/O power supply | 3.3 V ±10 % supply for all GPIO, UART, and peripheral I/O; 5 V tolerant pins allow interfacing with legacy 5 V logic without level shifters. |
| RESET | Active-low reset input | TTL-compatible reset with hysteresis; assertion forces I/O and peripherals to default states and initiates boot from address 0x00000000. |
Key Features
| Feature | Design Value |
|---|---|
| Fast GPIO Registers | Relocated to ARM local bus for 3.5× faster port pin toggling; enables real-time bit-banging of protocols like SWD or custom serial interfaces. |
| Dedicated ADC Result Registers | One register per channel reduces interrupt latency and eliminates software polling overhead during high-speed sampling sequences. |
| Fractional Baud Rate Generator | Enables precise UART clock division across wide frequency ranges (e.g., 921.6 kbps at 60 MHz PCLK), eliminating need for crystal trimming or external clock sources. |
| SSP Serial Controller | Hardware-buffered SPI/SSI/Microwire interface available only on LPC2194/01 variant; supports daisy-chained sensor networks and flash memory expansion. |
| Embedded Trace Interface | Real-time instruction trace capability via ETM-compatible interface; enables non-intrusive debugging of timing-critical CAN message handling and ISR latency analysis. |
Applications
| Automotive CAN Gateway | Industrial Protocol Converter |
|---|---|
Use Scenario: Bridging multiple CAN subnets operating at different bit rates (e.g., 500 kbps powertrain bus ↔ 125 kbps body electronics bus). IC Role / Device Role / Timing Role: Central arbitration unit managing message routing, filtering, and priority-based forwarding between isolated CAN domains. Use Value: Four independent CAN controllers eliminate need for external bridge ICs; 125 °C rating ensures reliability in engine bay mounting locations. | Use Scenario: Translating Modbus RTU over RS-485 to CANopen for legacy PLC integration into modern distributed control systems. IC Role / Device Role / Timing Role: Protocol translation engine with dual UART and quad CAN interfaces enabling simultaneous serial and fieldbus communication. Use Value: On-chip 256 kB flash stores multiple protocol stacks; Fast GPIO supports bit-banged auxiliary interfaces for proprietary fieldbus extensions. |
| Medical Sensor Hub | Fault-Tolerant Maintenance Bus |
Use Scenario: Aggregating analog sensor data (ECG, SpO₂, temperature) from multiple patient monitors and transmitting via CAN to central display unit. IC Role / Device Role / Timing Role: Signal acquisition and preprocessing node with 10-bit ADC, real-time clock, and watchdog for safety-critical timing supervision. Use Value: Dedicated ADC result registers enable deterministic sampling intervals; -40 °C to +125 °C range supports sterilization cycle operation. | Use Scenario: Monitoring diagnostic status of redundant subsystems (e.g., dual braking controllers) and initiating fail-safe actions upon mismatch detection. IC Role / Device Role / Timing Role: Fault-detection coordinator using CAN message comparison, CRC validation, and watchdog-triggered safe state activation. Use Value: Four CAN interfaces allow parallel monitoring of primary/backup buses; embedded ICE-RT enables in-system validation of fault-handling logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC2368FBD100 | 100-pin LQFP, 512 kB flash, USB 2.0 device, no CAN; higher clock (72 MHz), same ARM7TDMI-S core. | Lacks CAN interfaces; suited for USB-connected HMI or data loggers where fieldbus connectivity is handled externally. | Select when USB host/device capability is required and CAN is implemented via external transceiver + software stack. |
| LPC2468FET180 | 180-pin LQFP, 512 kB flash, Ethernet MAC, LCD controller, USB OTG; ARM7TDMI-S core, no CAN. | Replaces CAN with Ethernet and multimedia peripherals; targets networked industrial HMIs rather than distributed bus architectures. | Choose for applications requiring TCP/IP networking or graphical display, accepting external CAN interface via SPI-connected controller. |
Compared with LPC2194HBD64/01,15, LPC2368FBD100 offers greater memory and USB but removes CAN entirely, while LPC2468FET180 shifts focus to Ethernet and display-neither provides native quad-CAN capability, making LPC2194HBD64/01,15 uniquely suited for multi-bus automotive and industrial gateways.
Availability
LPC2194HBD64/01,15 is available at Aetrix Electronics and suitable for automotive CAN gateway design, industrial protocol converter development, and medical sensor hub implementation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LPC2194HBD64/01,15 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 LPC2194HBD64/01,15 belongs to the LPC2000 ARM7-based microcontroller family, designed specifically for real-time embedded control in electrically noisy, thermally demanding environments such as automotive gateways and industrial automation systems.
FAQ
What distinguishes LPC2194HBD64/01,15 from earlier LPC2194 variants like /00?
The LPC2194HBD64/01,15 includes hardware enhancements exclusive to the /01 suffix: Fast GPIO registers relocated to the ARM local bus for 3.5× faster pin toggling, dedicated ADC result registers per channel to reduce interrupt overhead, and SSP serial controller support (SPI/SSI/Microwire). These features are absent in /00 versions and confirmed in NXP's Rev. 6 datasheet Section 2.1 and 6.7.2. The LPC2194HBD64/01,15 maintains full pin compatibility with /00 but delivers measurable performance gains in I/O-intensive applications.
Does LPC2194HBD64/01,15 support CAN FD or only classical CAN 2.0B?
The LPC2194HBD64/01,15 supports only Classical CAN per ISO 11898-1 (CAN 2.0B), with data rates up to 1 Mbit/s and full 29-bit identifier filtering via its global acceptance filter. It does not implement CAN FD features such as variable bit rates, extended data length, or CRC enhancements. This is explicitly stated in Section 6.9.1 of the official datasheet, which references "CAN specification 2.0B" and makes no mention of ISO 11898-7 or CAN FD compliance. The LPC2194HBD64/01,15 remains a robust solution for legacy and current automotive and industrial CAN networks requiring proven interoperability.
What is the role of VDDA(1V8) and VDDA(3V3) pins on LPC2194HBD64/01,15?
VDDA(1V8) supplies analog circuitry for the 10-bit ADC and PLL core at 1.8 V ±0.15 V, while VDDA(3V3) powers analog I/O buffers (e.g., ADC input pads) at 3.3 V ±10 %. Both require separate low-noise regulation and physical isolation from digital VDD rails to prevent switching noise from degrading ADC accuracy or PLL jitter. The datasheet mandates separate PCB traces and dedicated decoupling capacitors near pins 63 (VDDA(1V8)) and 7 (VDDA(3V3)), with VSSA and VSSA(PLL) providing isolated return paths. This separation ensures LPC2194HBD64/01,15 achieves specified 10-bit linearity and 2.44 µs conversion time under full load.
Can LPC2194HBD64/01,15 operate without an external crystal?
Yes, the LPC2194HBD64/01,15 can operate using its internal RC oscillator for basic functionality, but production-grade timing accuracy requires an external crystal connected to XTAL1/XTAL2. The on-chip crystal oscillator supports 1–30 MHz crystals, and the PLL uses this reference to generate the 60 MHz CPU clock. Without an external crystal, the internal RC oscillator provides only approximate timing (±50 % accuracy), insufficient for CAN bit timing, UART baud rate precision, or RTC operation. Therefore, for any application relying on LPC2194HBD64/01,15's CAN, UART, or RTC peripherals, an external crystal is mandatory.
How does Code Read Protection (CRP) function on LPC2194HBD64/01,15?
Code Read Protection (CRP) on LPC2194HBD64/01,15 disables JTAG debug access and ISP commands targeting on-chip RAM or flash when enabled via bootloader configuration. CRP levels (CRP1–CRP3) progressively restrict read/write capabilities, with CRP3 preventing all external access except ISP flash erase. Critically, full chip erase resets CRP-removing protection requires erasing all user flash memory. This mechanism is implemented in the on-chip bootloader (v1.60+), and CRP status is retained across power cycles. The LPC2194HBD64/01,15 datasheet confirms CRP applies identically to /00 and /01 variants, with no functional difference in protection behavior between suffixes.
LPC2194HBD64/01,15 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- Series:
- LPC2100
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- ARM7®
- Core Size:
- 16/32-Bit
- Speed:
- 60MHz
- Connectivity:
- CANbus, I2C, Microwire, SPI, SSI, SSP, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 46
- 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 4x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC2194HBD64/01,15 FAQ
1.How can I place an order for LPC2194HBD64/01,15 through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC2194HBD64/01,15 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 LPC2194HBD64/01,15 reliable?
The price and inventory of LPC2194HBD64/01,15 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC2194HBD64/01,15 is usually 5 days.
3.What payment methods are accepted for LPC2194HBD64/01,15?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC2194HBD64/01,15 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC2194HBD64/01,15?
LPC2194HBD64/01,15 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC2194HBD64/01,15 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 LPC2194HBD64/01,15?
For technical support, including LPC2194HBD64/01,15 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC2194HBD64/01,15 requirements.
6.How does Aetrix verify that LPC2194HBD64/01,15 is sourced from the original manufacturer or authorized distributors?
All LPC2194HBD64/01,15 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 LPC2194HBD64/01,15 meets industry standards.
7.What is the process for return or replacement of LPC2194HBD64/01,15?
All LPC2194HBD64/01,15 units undergo pre-shipment inspection (PSI). If there is an issue with LPC2194HBD64/01,15, 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 LPC2194HBD64/01,15 part is unused and in its original packaging.
Return procedure for LPC2194HBD64/01,15:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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