LPC2106FHN48/01 - 60MHz ARM7 MCU, 128KB Flash | NXP
MPN: LPC2106FHN48/01 ✓ ActiveLPC2106FHN48/01 Overview
A microcontroller is a programmable semiconductor that integrates a CPU core, memory, peripherals, and I/O on one device. The LPC2106 belongs to the general-purpose MCU hierarchy and uses the ARM7TDMI-S architecture, which supports 32-bit ARM instruction execution and 16-bit Thumb code. This combination provides broad software compatibility while allowing reduced code size where instruction density matters.
The principal features of the LPC2106FHN48/01 include 128 KB of ISP/IAP flash, 64 KB of SRAM, a 60 MHz operating frequency, two UARTs, I2C, and SPI interfaces. A 128-bit-wide memory interface and accelerator architecture support efficient 32-bit code execution. Thumb mode can reduce code size by more than 30% relative to equivalent 32-bit instruction encoding, making the device suitable for firmware with limited flash capacity.
The /01 suffix identifies a specific device configuration within the LPC2104, LPC2105, and LPC2106 family. NXP states that the family datasheet covers devices with and without /00 and /01 suffixes and that suffixes differentiate configurations containing new features. Firmware and hardware requirements should therefore be checked against the exact ordering code and datasheet before substitution.
Typical uses include industrial control equipment, serial gateways, embedded data recorders, communications equipment, and compact control panels. The UARTs support asynchronous serial links, while I2C and SPI allow connection to sensors, memories, transceivers, and display or interface devices. The 60 MHz ARM7TDMI-S core is useful when deterministic response and moderate arithmetic processing are required without a higher-complexity Cortex-M device.
PCB implementation requires careful attention to the 48-HVQFN land pattern, 0.50 mm terminal pitch, exposed thermal pad, and required power and decoupling connections. Use the manufacturer pin description table and package drawing when assigning tracks. Keep high-current supply paths short, connect the thermal pad to the intended ground plane, and provide local bypass capacitance at the supply pins.
This product record combines the exact manufacturer ordering information with a practical comparison of verified family variants. It highlights where engineers must confirm electrical differences, pin compatibility, lifecycle status, and package details before approving any replacement or redesign.
Drop-in alternatives for LPC2106FHN48/01 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
LPC2106FHN48/01,55
✅ Drop-In📋 Reference alternative (not in catalog)
LPC2106FHN48
✅ Drop-In📋 Reference alternative (not in catalog)
LPC2106FHN48,551
✅ Drop-In📋 Reference alternative (not in catalog)
LPC2106FHN48/01 Maximum Ratings & Electrical Characteristics
| Product Type | 32-bit ARM7TDMI-S microcontroller |
| Maximum Clock Frequency | 60 MHz |
| CPU Architecture | ARM7TDMI-S with ARM and Thumb instruction support |
| Program Memory | 128 KB ISP/IAP Flash |
| RAM | 64 KB |
| Memory Interface Width | 128 bit |
| UART Count | 2 |
| I2C Interface | 1 interface |
| SPI Interface | 1 interface |
| General-Purpose I/O Count | 32 ports |
| Core Supply Voltage | 1.65 V to 1.95 V |
| Package | 48-HVQFN, 7 mm x 7 mm |
| Package Height | 1.40 mm |
| Terminal Pitch | 0.50 mm |
| Mounting Type | Surface mount |
| Debug Support | Real-time emulation and embedded trace |
| RoHS Compliance | unknown |
| REACH Compliance | unknown |
LPC2106FHN48/01 1.40 mm Pin Configuration Guide
Pin configuration for LPC2106FHN48/01 (1.40 mm package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for LPC2106FHN48/01.
Refer to the datasheet for full pin configuration.
Typical Applications
LPC2106FHN48/01 is suitable for 6 applications: Industrial Serial Gateway, Embedded Data Recorder, Communications Equipment, Precision Sensor Node, Motor Control Interface, Embedded Control Panel.
Industrial Serial Gateway
The LPC2106FHN48/01 fits an industrial serial gateway because its 60 MHz ARM7TDMI-S core can service protocol conversion while two UARTs provide independent serial links. The 64 KB RAM supports buffering and state management, and 128 KB of ISP/IAP flash holds gateway firmware, configuration logic, and update code. I2C and SPI can connect local sensors, transceivers, or nonvolatile storage. During implementation, size serial buffers for the worst-case traffic, provide firmware-controlled line states during startup, and confirm the selected regulator and I/O voltage levels against the exact family datasheet.
Recommended
Embedded Data Recorder
The LPC2106FHN48/01 can coordinate an embedded data recorder because the ARM7TDMI-S processor operates up to 60 MHz and the device includes 128 KB of ISP/IAP flash for firmware plus 64 KB of RAM for active buffering. SPI supports efficient access to flash storage or acquisition devices, while UART can provide a maintenance or telemetry channel. Firmware should use write buffering to avoid blocking real-time acquisition, and the board design should provide local bypass capacitance at every supply pin and a stable 1.65 V to 1.95 V core rail.
Recommended
Communications Equipment
The LPC2106FHN48/01 suits compact communications equipment requiring several serial interfaces and moderate embedded processing. Two UARTs can manage a host link and an external radio or modem interface, while the 60 MHz ARM7TDMI-S core executes framing, error handling, and protocol supervision. Thumb operation can improve code density when firmware approaches the 128 KB flash limit. Layout should separate sensitive communications signals from digital return currents, keep the thermal pad well connected to ground, and verify interface levels with the selected transceiver rather than relying on MCU I/O voltage alone.
Recommended
Precision Sensor Node
The LPC2106FHN48/01 can act as the control and communication processor in a compact sensor node. Its I2C interface suits sensors and configuration devices, SPI supports higher-throughput sensors or external memory, and the 128-bit memory interface helps sustain efficient ARM7TDMI-S execution. The 60 MHz clock also permits time-based filtering and local fault handling without offloading every task to a host. Designers should match sensor logic levels to the MCU I/O rails, isolate noisy analog inputs from clock and SPI routing, and calculate average power from the duty cycle rather than assuming continuous 60 MHz activity.
Recommended
Motor Control Interface
The LPC2106FHN48/01 is suitable for a supervisory motor-control interface when the main power stage is implemented separately. The 60 MHz ARM7TDMI-S core can execute position logic, fault handling, and communication protocols, while two UARTs support tuning and diagnostics. PWM-capable outputs, where required by the selected family device, can generate actuator commands or timing signals. Keep the MCU and sensitive timing circuitry away from motor-current paths, use a dedicated regulator and bulk capacitance for the power stage, and validate every PWM output and fault signal against the exact pin table.
Recommended
Embedded Control Panel
The LPC2106FHN48/01 can manage an embedded control panel that combines local status indication, sensor input, and a host connection. Its 64 KB RAM accommodates display buffers and short-lived UI state, while 128 KB of ISP/IAP flash provides space for the control application and in-system programming capability. UART and I2C can connect a display controller or touch interface, and SPI may serve external memory. Low-power design should use the MCU's documented idle and wake behavior, while firmware must ensure outputs reach safe states whenever reset, brownout, or communication loss occurs.
Recommended
Recommended Products Summary
Engineering reference data for LPC2106FHN48/01 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LPC2106FHN48/01,55 | LPC2106FHN48 | LPC2106FHN48,551 |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 48-HVQFN (7x7) | 48-HVQFN (7x7) | 48-HVQFN (7x7) | 48-HVQFN (7x7) |
| CPU Core | ARM7TDMI-S | ARM7TDMI-S | ARM7TDMI-S | ARM7TDMI-S |
| Program Memory | 128 KB ISP/IAP Flash | 128 KB ISP/IAP Flash | 128 KB embedded high-speed Flash | 128 KB embedded high-speed Flash |
| RAM | 64 KB | 64 KB | 64 KB | 64 KB |
| UART Count | 2 | 2 | 2 | 2 |
| Serial Interfaces | I2C and SPI | I2C and SPI | I2C and SPI | I2C and SPI |
| General-Purpose I/O Count | 32 ports | 32 ports | 32 ports | 32 ports |
Key Differentiators
- Exact /01 feature configuration (vs LPC2106FHN48)
- 60 MHz ARM7TDMI-S processing (vs LPC2106FHN48,551)
- Compact 48-HVQFN footprint with integrated serial connectivity (vs LPC2106FHN48/01,55)
Design Notes
Use the NXP 48-HVQFN land pattern and pin-description table for PCB routing. The package has a 0.50 mm terminal pitch and an exposed thermal pad, so pad geometry, solder-mask definition, paste volume, and exposed-pad vias must follow the manufacturer package drawing. Keep the exposed pad connected to the intended ground plane unless the exact datasheet specifies otherwise, and route sensitive inputs away from power inductors and high-current switching nodes.
Provide a clean 1.65 V to 1.95 V core rail and place local bypass capacitors close to the device supply pins. Determine capacitor voltage ratings from the actual rail and transient environment rather than only nominal operating voltage. Verify startup current, flash-write current, I/O loading, and regulator headroom against the datasheet. This is especially important for systems that suspend power while retaining state or operate from a limited-energy source.
Do not treat every LPC2106 order code as automatically interchangeable. NXP identifies /00 and /01 suffixes as feature differentiators, so verify CPU frequency, RAM, flash configuration, peripheral availability, pin multiplexing, and reset behavior for every substitution. After replacing the component, rebuild or retarget the application code, validate all boot and ISP/IAP paths, and test both normal and fault conditions instead of relying only on the shared package name.
Maintain continuous ground and power planes beneath the device while avoiding splits directly under high-speed routes. Connect the exposed thermal pad with multiple short vias according to the manufacturer's recommended land pattern and assembly process. Place decoupling, oscillator, and reset-support components according to the reference schematic and keep their loops compact. For UART or SPI routing away from the MCU, provide controlled return paths and appropriate impedance-aware design rules.
Compliance Information
The manufacturer and distributor product information confirms an active LPC2106FHN48 family device but does not provide explicit compliance declarations for the exact LPC2106FHN48/01 ordering code.
