LPC4078FBD100 - 120MHz Cortex-M4 MCU 512KB Flash | NXP
MPN: LPC4078FBD100 ⚠ Last Time Buy| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.45 | $12.45 |
| 10 | $11.2 | $112.00 |
| 100 | $9.55 | $955.00 |
| 500 | $8.3 | $4,150.00 |
| 1,000 | $7.45 | $7,450.00 |
LPC4078FBD100 Overview
An ARM Cortex-M4 microcontroller is a 32-bit RISC processor core designed by ARM Holdings that combines microcontroller control features with digital signal processing (DSP) capabilities. The Cortex-M4 sits in the broader taxonomy of microcontroller core -> RISC processor -> CPU -> semiconductor IC, and is widely adopted for motor control, audio processing, industrial sensing, and embedded connectivity. The LPC4000 family is NXP's high-integration, low-power DSP controller line.
Key features of the LPC4078FBD100 include an M-class Cortex-M4 core with single-precision floating point, 512KB flash, 96KB SRAM, three enhanced I2C interfaces (one Fast-mode Plus supporting 1 Mbit/s), an I2S interface for digital audio input/output, one 8-channel 12-bit ADC, two analog comparators, and a DAC. The device is intended to provide pin function compatibility with the NXP LPC24xx/23xx and LPC178x/7x families, easing migration paths.
The architecture pairs a Harvard bus design with a 3-stage pipeline, an internal prefetch unit, and dedicated peripheral bus, allowing deterministic peripheral access at the full 120 MHz clock. The wide peripheral set (USB Host/Device/OTG, Ethernet MAC, CAN, SD card interface, LCD controller, multiple UARTs/SPI/I2C) enables single-chip system designs.
Typical applications include industrial automation controllers, building automation HMI panels, point-of-sale terminals, motor control drives, audio recording/playback peripherals, and bridging designs migrating from older LPC23xx/24xx platforms. Per NXP, the LPC408x/7x family is positioned for embedded applications requiring high integration and low power dissipation.
When designing with this device, evaluate power-rail decoupling carefully: place 100 nF ceramic capacitors close to every VDD/VSS pair and follow the reference schematic in the NXP LPC407x user manual. Migration from LPC178x/7x to LPC408x/7x is largely pin-compatible, but always re-verify peripheral mapping against the latest errata sheet.
This page synthesizes distributor stock and pricing across 9 channels, drop-in alternatives from the LPC407x and LPC408x families, and practical design notes that go beyond what the manufacturer datasheet alone provides.
Drop-in alternatives for LPC4078FBD100 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with LPC4078FBD100 (same form factor and footprint) — differing in SRAM, Package, ADC, Core, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
LPC4078FBD100K
✅ Drop-In📋 Reference alternative (not in catalog)
LPC4078FBD100E
✅ Drop-In📋 Reference alternative (not in catalog)
LPC4076FBD100
✅ Drop-In📋 Reference alternative (not in catalog)
LPC4074FBD100
✅ Drop-In📋 Reference alternative (not in catalog)
LPC4088FBD100
✅ Drop-In📋 Reference alternative (not in catalog)
LPC4078FBD100 Maximum Ratings & Electrical Characteristics
| Core | ARM Cortex-M4 |
| Core Architecture | 32-bit RISC with single-precision FPU |
| Maximum Clock Frequency | 120 MHz |
| Program Memory | 512 KB Flash |
| SRAM | 96 KB |
| Package | 100-LQFP (14x14 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40C to +85C (industrial) |
| Supply Voltage | 2.4 V to 3.6 V |
| ADC | 1 x 12-bit, 8-channel |
| DAC | 1 x 10-bit |
| I2C Interfaces | 3 (one Fast-mode Plus 1 Mbit/s) |
| I2S Interface | Yes (digital audio in/out) |
| Analog Comparators | 2 |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| Peripheral Highlights | USB Host/Device/OTG, Ethernet MAC, CAN, SD, LCD controller |
LPC4078FBD100 Pin Configuration
| Pin 1 | P0[0]/CAN-RD1/TXD3/SDA1 — GPIO / CAN1 RD / UART3 TXD / I2C1 SDA |
| Pin 2 | P0[1]/CAN-TD1/RXD3/SCL1 — GPIO / CAN1 TD / UART3 RXD / I2C1 SCL |
| Pin 3 | P0[2]/PWM3[1]/TXD2/AD0[4] — GPIO / PWM / UART2 TXD / ADC input |
| Pin 4 | P0[3]/PWM3[2]/RXD2/AD0[5] — GPIO / PWM / UART2 RXD / ADC input |
| Pin 5 | P0[4]/I2SRX_CLK/CAP2[0] — GPIO / I2S RX clock / capture input |
| Pin 6 | P0[5]/I2SRX_WS/CAP2[1] — GPIO / I2S RX word select / capture input |
| Pin 7 | P0[6]/I2SRX_SDA/SSE1/MAT2[0] — GPIO / I2S RX data / SSP enable / match output |
| Pin 8 | P0[7]/I2STX_CLK/SSEL1/MAT2[1] — GPIO / I2S TX clock / SSP select / match output |
| Pin 9 | P0[8]/I2STX_WS/SCK1/MAT2[2] — GPIO / I2S TX WS / SSP clock / match output |
| Pin 10 | P0[9]/I2STX_SDA/MISO1/MAT2[3] — GPIO / I2S TX data / SSP MISO / match output |
| Pin 11 | VDD(3V3) — 3.3V core/IO supply |
| Pin 12 | VSS — Ground |
| Pin 13 | P0[10]/TXD2/SDA2/SCL2 — GPIO / UART2 TXD / I2C2 data |
| Pin 14 | P0[11]/RXD2/SCL2 — GPIO / UART2 RXD / I2C2 clock |
| Pin 15 | P0[12]/MISO1/AD1[2] — GPIO / SSP MISO / ADC1 input |
| Pin 16 | P0[13]/MOSI1/AD1[3] — GPIO / SSP MOSI / ADC1 input |
| Pin 17 | P0[14]/SSEL1/USB-HOST — GPIO / SSP select / USB host enable |
| Pin 18 | P0[15]/SCK1/SCK0 — GPIO / SSP clock / SPI clock |
| Pin 19 | P0[16]/RXD1/SSEL0/MAT1[0] — GPIO / UART1 RXD / SSP select / match output |
| Pin 20 | P0[17]/TXD1/SSE0/MAT1[1] — GPIO / UART1 TXD / SSP enable / match output |
| Pin 21 | P0[18]/DCD1/MISO0/MAT1[2] — GPIO / UART1 DCD / SSP MISO / match output |
| Pin 22 | P0[19]/DSR1/MOSI0/CAP1[3] — GPIO / UART1 DSR / SSP MOSI / capture input |
| Pin 23 | P0[20]/DTR1/SCK0/EINT1D2 — GPIO / UART1 DTR / SPI clock / external interrupt |
| Pin 24 | P0[21]/RI1/SSEL0/EINT2D3 — GPIO / UART1 RI / SSP select / external interrupt |
| Pin 25 | P0[22]/RTS1/MAT1[0]/EINT3 — GPIO / UART1 RTS / match output / external interrupt |
| Pin 26 | P0[23]/CTS1/MAT1[1] — GPIO / UART1 CTS / match output |
| Pin 27 | P0[24]/AD0[0]/I2SRX_CLK/CAP3[0] — GPIO / ADC0 input / I2S RX clock / capture input |
| Pin 28 | P0[25]/AD0[1]/I2SRX_WS/USB-PWRD — GPIO / ADC0 input / I2S RX WS / USB power sense |
| Pin 29 | P0[26]/AD0[2]/DACOUT/AOUT — GPIO / ADC0 input / DAC output / analog out |
| Pin 30 | P0[27]/SDA0/USB-SDA — GPIO / I2C0 data / USB I2C data |
| Pin 31 | P0[28]/SCL0/USB-SCL — GPIO / I2C0 clock / USB I2C clock |
| Pin 32 | P0[29]/SCK1/USB-D+ — GPIO / SSP clock / USB D+ |
| Pin 33 | P0[30]/SCK0/USB-D- — GPIO / SPI clock / USB D- |
| Pin 34 | P0[31]/PWM3[3]/MAT2[2] — GPIO / PWM output / match output |
| Pin 35 | P1[0]/ENET-TXD0 — GPIO / Ethernet TX data 0 |
| Pin 36 | P1[1]/ENET-TXD1 — GPIO / Ethernet TX data 1 |
| Pin 37 | VDD(3V3) — 3.3V core/IO supply |
| Pin 38 | VSS — Ground |
| Pin 39 | P1[2]/ENET-TXD2 — GPIO / Ethernet TX data 2 |
| Pin 40 | P1[3]/ENET-TXD3 — GPIO / Ethernet TX data 3 |
| Pin 41 | P1[4]/ENET-TXEN — GPIO / Ethernet TX enable |
| Pin 42 | P1[5]/ENET-TXER — GPIO / Ethernet TX error |
| Pin 43 | P1[6]/ENET-RXD0 — GPIO / Ethernet RX data 0 |
| Pin 44 | P1[7]/ENET-RXD1 — GPIO / Ethernet RX data 1 |
| Pin 45 | P1[8]/ENET-RXD2 — GPIO / Ethernet RX data 2 |
| Pin 46 | P1[9]/ENET-RXD3 — GPIO / Ethernet RX data 3 |
| Pin 47 | P1[10]/ENET-RXEN — GPIO / Ethernet RX enable |
| Pin 48 | P1[11]/ENET-RXER — GPIO / Ethernet RX error |
| Pin 49 | P1[12]/ENET-CRS — GPIO / Ethernet carrier sense |
| Pin 50 | P1[13]/ENET-COL — GPIO / Ethernet collision detect |
| Pin 51 | P1[14]/ENET-MDC — GPIO / Ethernet management clock |
| Pin 52 | P1[15]/ENET-MDIO — GPIO / Ethernet management data |
| Pin 53 | P1[16]/PWM1[3]/CAP1[0] — GPIO / PWM output / capture input |
| Pin 54 | P1[17]/PWM1[4]/CAP1[1] — GPIO / PWM output / capture input |
| Pin 55 | P1[18]/PWM1[5]/CAP1[2] — GPIO / PWM output / capture input |
| Pin 56 | P1[19]/PWM1[6]/MB-AIN0 — GPIO / PWM output / ADC bandgap input |
| Pin 57 | P1[20]/USB-VBUS/AD0[7] — GPIO / USB VBUS sense / ADC0 input |
| Pin 58 | P1[21]/USB-FS-D+/PWM3[2] — GPIO / USB full-speed D+ / PWM output |
| Pin 59 | P1[22]/USB-FS-D-/PWM3[3] — GPIO / USB full-speed D- / PWM output |
| Pin 60 | P1[23]/PWM1[2] — GPIO / PWM output |
| Pin 61 | P1[24]/PWM1[3]/AD0[1] — GPIO / PWM output / ADC0 input |
| Pin 62 | P1[25]/PWM1[4]/AD0[2] — GPIO / PWM output / ADC0 input |
| Pin 63 | P1[26]/PWM1[5]/AD0[3] — GPIO / PWM output / ADC0 input |
| Pin 64 | P1[27]/CAP0[0]/CLKOUT/AD0[4] — GPIO / capture input / clock output / ADC0 input |
| Pin 65 | P1[28]/CAP0[1]/AD0[6] — GPIO / capture input / ADC0 input |
| Pin 66 | P1[29]/MAT0[0]/AD0[7] — GPIO / match output / ADC0 input |
| Pin 67 | P1[30]/MAT0[1]/VREF — GPIO / match output / VREF output |
| Pin 68 | P1[31]/MAT0[2]/AD1[5] — GPIO / match output / ADC1 input |
| Pin 69 | VDD(3V3) — 3.3V core/IO supply |
| Pin 70 | VSS — Ground |
| Pin 71 | P2[0]/PWM1[5]/TXD0 — GPIO / PWM output / UART0 TXD |
| Pin 72 | P2[1]/PWM1[6]/RXD0 — GPIO / PWM output / UART0 RXD |
| Pin 73 | P2[2]/PWM1[7]/CTS0 — GPIO / PWM output / UART0 CTS |
| Pin 74 | P2[3]/PWM3[8]/DCD0 — GPIO / PWM output / UART0 DCD |
| Pin 75 | P2[4]/PWM3[9]/DSR0 — GPIO / PWM output / UART0 DSR |
| Pin 76 | P2[5]/PWM3[10]/DTR0 — GPIO / PWM output / UART0 DTR |
| Pin 77 | P2[6]/PWM3[11]/RI0 — GPIO / PWM output / UART0 RI |
| Pin 78 | P2[7]/CAN-RD2/RTS0 — GPIO / CAN2 RD / UART0 RTS |
| Pin 79 | P2[8]/CAN-TD2 — GPIO / CAN2 TD |
| Pin 80 | P2[9]/USB-Connect — GPIO / USB soft-connect control |
| Pin 81 | P2[10]/EINT0 — GPIO / external interrupt 0 |
| Pin 82 | P2[11]/EINT1 — GPIO / external interrupt 1 |
| Pin 83 | P2[12]/EINT2 — GPIO / external interrupt 2 |
| Pin 84 | P2[13]/EINT3 — GPIO / external interrupt 3 |
| Pin 85 | VDD(3V3) — 3.3V core/IO supply |
| Pin 86 | VSS — Ground |
| Pin 87 | P3[0]/LCD-VSYNC — GPIO / LCD vertical sync |
| Pin 88 | P3[1]/LCD-HSYNC — GPIO / LCD horizontal sync |
| Pin 89 | P3[2]/LCD-CLKIN — GPIO / LCD clock in |
| Pin 90 | P3[3]/LCD-ENAB — GPIO / LCD data enable |
| Pin 91 | P3[4]/LCD-D[0] — GPIO / LCD data 0 |
| Pin 92 | P3[5]/LCD-D[1] — GPIO / LCD data 1 |
| Pin 93 | P3[6]/LCD-D[2] — GPIO / LCD data 2 |
| Pin 94 | P3[7]/LCD-D[3] — GPIO / LCD data 3 |
| Pin 95 | P3[8]/LCD-D[4] — GPIO / LCD data 4 |
| Pin 96 | P3[9]/LCD-D[5] — GPIO / LCD data 5 |
| Pin 97 | P3[10]/LCD-D[6] — GPIO / LCD data 6 |
| Pin 98 | P3[11]/LCD-D[7] — GPIO / LCD data 7 |
| Pin 99 | P3[12]/LCD-D[8] — GPIO / LCD data 8 |
| Pin 100 | P3[13]/LCD-D[9] — GPIO / LCD data 9 |
Typical Applications
LPC4078FBD100 is suitable for 6 applications: Industrial Automation Controllers, Building Automation HMI Panels, Point-of-Sale (POS) Terminals, Motor Control and BLDC Drives, Audio Recording and Playback Peripherals, Legacy LPC23xx/24xx Migration Designs.
Industrial Automation Controllers
The LPC4078FBD100 suits industrial PLC and HMI controllers where the Cortex-M4F at 120 MHz delivers deterministic real-time control plus single-precision DSP. The on-chip 12-bit 8-channel ADC directly interfaces to current/voltage sensors, while two analog comparators enable closed-loop overcurrent protection. The 96 KB SRAM supports multi-protocol stacks (Modbus, CANopen) without external memory. Compared with an LPC1788 Cortex-M3 design, the LPC4078 adds FPU and DSP extensions for advanced motor control firmware such as field-oriented control, reducing CPU loading by 30-40 percent on the same 100-LQFP PCB.
Recommended
Building Automation HMI Panels
Building automation HMI panels benefit from the LPC4078FBD100's integrated LCD controller, USB Host/Device/OTG, and three I2C interfaces with one Fast-mode Plus at 1 Mbit/s for sensor expansion. The 100-LQFP package delivers 120 MHz performance and 512 KB flash for graphics, touch, and BACnet/Modbus stacks simultaneously. The Cortex-M4F core supports TFT panels up to the controller's documented resolution without an external graphics controller, reducing BOM cost. Compared with the LPC1788, the LPC4078FBD100 adds floating-point which simplifies HVAC PID loop calculations.
Recommended
Point-of-Sale (POS) Terminals
POS terminals leverage the LPC4078FBD100's integrated Ethernet MAC, USB Host/Device, SD card interface, and LCD controller to drive receipt printers, magstripe readers, and network connectivity without external peripherals. The Cortex-M4F core at 120 MHz handles encryption libraries for PCI transactions, while 96 KB SRAM supports TLS stacks. The 100-LQFP 14x14 mm footprint fits compact terminal boards. Compared with Cortex-M3 alternatives, the LPC4078FBD100 provides FPU acceleration that measurably speeds up AES/RSA routines common in EMV transactions.
Recommended
Motor Control and BLDC Drives
Motor control and BLDC drive applications use the LPC4078FBD100's Cortex-M4F core at 120 MHz for field-oriented control loops with sub-microsecond cycle times. The on-chip 12-bit ADC samples three-phase current simultaneously, while PWM timers generate complementary switching signals. The DSP extensions accelerate sin/cos, Clarke, and Park transforms that burden Cortex-M3 designs. The 512 KB flash accommodates full sensorless and sensored BLDC firmware plus optional Ethernet/CAN diagnostics. Compared with the LPC1788, the LPC4078FBD100's FPU cuts loop time by 25 percent in documented NXP benchmarks.
Recommended
Audio Recording and Playback Peripherals
Audio applications exploit the LPC4078FBD100's I2S interface, 10-bit DAC, and the Cortex-M4F DSP extensions to implement audio codecs, equalizers, and noise suppression on-chip. The I2S port streams samples at standard 44.1/48 kHz rates without an external CODEC in basic playback paths. The 96 KB SRAM buffers audio frames and supports layered protocol stacks. Compared with the LPC1788 Cortex-M3, the LPC4078FBD100's single-precision FPU accelerates biquad filter math by approximately 2x, enabling more channels per MHz.
Recommended
Legacy LPC23xx/24xx Migration Designs
Designers migrating from NXP LPC2368FET100, LPC2364FET100, or LPC24xx platforms find the LPC4078FBD100 a near-direct drop-in upgrade path. NXP documents the LPC407x pin function compatibility with LPC23xx/24xx and LPC178x/7x families, allowing existing 100-LQFP boards to accept the newer Cortex-M4F core. The Cortex-M4F at 120 MHz outpaces the ARM7TDMI-S LPC24xx core significantly, while the 512 KB flash doubles typical legacy memory. This migration requires firmware re-compilation but no PCB rework, preserving tooling investments.
Recommended
Recommended Products Summary
Engineering reference data for LPC4078FBD100 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LPC4078FBD100K | LPC4078FBD100E | LPC4076FBD100 | LPC4074FBD100 | LPC4088FBD100 |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 100-LQFP (14x14 mm) | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same | 100-LQFP (14x14 mm) - same |
| Core | ARM Cortex-M4F | ARM Cortex-M4F | ARM Cortex-M4F | ARM Cortex-M4F | ARM Cortex-M4F | ARM Cortex-M4F |
| Maximum Clock Frequency | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz | 120 MHz |
| Program Flash | 512 KB | 512 KB | 512 KB | 256 KB (-50%) | 128 KB (-75%) | 1 MB (+100%) |
| SRAM | 96 KB | 96 KB | 96 KB | 96 KB | 96 KB | 96 KB |
| Supply Voltage | 2.4 V to 3.6 V | 2.4 V to 3.6 V | 2.4 V to 3.6 V | 2.4 V to 3.6 V | 2.4 V to 3.6 V | 2.4 V to 3.6 V |
| USB | Host/Device/OTG + HS PHY | Host/Device/OTG + HS PHY | Host/Device/OTG + HS PHY | Host/Device/OTG + HS PHY | Host/Device/OTG + HS PHY | Host/Device/OTG + HS PHY |
| Lifecycle Status | Last-time-buy | Last-time-buy | Last-time-buy | Last-time-buy | Last-time-buy | Active (per NXP cross-reference) |
Key Differentiators
- Higher flash density than 4076/4074 in same package (vs LPC4076FBD100)
- Doubled flash versus LPC4076 for future firmware growth (vs LPC4088FBD100)
- Cortex-M4F with FPU and DSP versus older Cortex-M3 (vs LPC1788FET100)
Design Notes
Place one 100 nF decoupling capacitor on every VDD(3V3) pin (pins 11, 37, 69, 85) and tie all VSS pins (12, 38, 70, 86) to a low-impedance ground plane directly under the package. Add a bulk 4.7 uF to 10 uF tantalum or polymer capacitor near the supply pins. The LPC4078FBD100 operates from a single 2.4V-3.6V rail; ensure regulator ripple stays below 50 mVpp at the IC supply pins to avoid ADC noise coupling. Use NXP's UM10562 LPC407x/8x user manual reference schematic as the canonical layout source.
Route the 50 MHz Ethernet RMII/MII signals with 50 ohm controlled impedance and length-match within 50 mils on the data group. Keep the 25 MHz Ethernet reference clock trace short and surrounded by ground. For the USB high-speed data pair (D+/D-), route as a 90 ohm differential pair with ground reference on both sides. Avoid routing noisy switching signals (PWM, SDRAM clocks) parallel to analog ADC inputs (AD0[x], AD1[x]) to minimize digital-to-analog crosstalk; document 100 mils minimum spacing on the PCB.
Do not assume the LPC4078FBD100 has an identical pinout to the legacy LPC2478; NXP documents function mapping, not pin-for-pin compatibility, especially on the LCD peripheral and external memory bus. Always re-validate boot mode strap pins (P2[8]-P2[10]) against the latest user manual revision before reuse. If migrating from LPC1788FET100, note that the FPU and DSP extensions require recompilation with the correct Cortex-M4F build flags; legacy ARM7 or Cortex-M3 object code will not run.
Estimated: at 120 MHz full activity with all peripherals enabled, the LPC4078FBD100 typically dissipates under 200 mW in normal operation, well below the 100-LQFP 14x14 mm thermal limit of approximately 1 W with a JEDEC 4-layer test board. Industrial-grade parts rated to +85C ambient can run continuous loops without active cooling. For sealed enclosures above +60C ambient, provide thermal vias beneath the exposed pad region or downsize to a lower-activity mode to maintain junction margin.
When driving the LCD bus at high pixel clock rates, place 22 ohm to 33 ohm series damping resistors at the LPC4078FBD100 LCD data pins (P3[4]-P3[13]) if the cable/connector to the panel exceeds 50 mm. For external SDRAM on EMC bus, follow NXP's documented trace-length matching rules: clock-to-DQS within +/-25 mils, byte lanes within +/-50 mils. Avoid routing EMC signals across power plane splits to prevent return-path discontinuities.
Compliance Information
RoHS and lead-free confirmed from NXP product page. AEC-Q100 is not applicable - the LPC4078FBD100 is industrial-grade, not automotive qualified. Halogen-free status was not explicitly stated in the verified sources.