NXP LPC804M101JDH24FP — 32-bit MCU, 15MHz, 32KB Flash, 24-TSSOP
NXP LPC804M101JDH24FP, ARM Cortex-M0+ 15MHz, 32KB Flash, 4KB RAM, 1.71–3.6V supply, 12-bit ADC (12 ch), 10-bit DAC, 21 I/O, internal oscillator, -40°C to 105°C, 24-TSSOP, tube.
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Specifications
| Parameter | Value |
|---|---|
| Series | LPC80xM |
| Mounting type | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.71V ~ 3.6V |
| Operating temperature | -40°C ~ 105°C (TA) |
| Speed | 15MHz |
| Package | Tube |
| RAM size | 4K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | I²C, SPI, UART/USART |
| Number of i (O) | 21 |
| Core processor | ARM® Cortex®-M0+ |
| Case | 24-TSSOP (0.173\", 4.40mm Width) |
| Data converters | A/D 12x12b; D/A 1x10b |
| Program memory size | 32KB (32K x 8) |
Frequently asked questions
Does the internal oscillator on the LPC804M101JDH24FP eliminate the need for an external crystal in a Profinet IO field gateway?
The internal oscillator supplies the system clock — no external crystal or resonator is required on the BOM for basic operation. UART baud rate accuracy of the internal oscillator is typically ±1% or wider; this covers Modbus RTU at 9600 and 19200 baud within timing tolerances. For 115200 baud or Profinet timing budgets, verify the oscillator accuracy specification at your operating temperature before removing the crystal from the BOM. The debug interface uses SWD — an external debugger (LPCXpresso or CMSIS-DAP compatible) programs the 32KB Flash over the SWD pins.
Can the 4KB RAM on the LPC804M101JDH24FP run a Modbus RTU stack with 12-channel A/D buffering?
For a sensor node polling one Modbus command per second with modest ADC averaging (8–16 samples per channel), the 4KB RAM fits without external SPI RAM. The constraint is the RAM ceiling: if the application needs deep ADC averaging (256+ samples), TLS on the serial link, or a full Modbus master stack with multiple register maps, the 4KB limit becomes binding. The 32KB Flash is adequate for the firmware footprint typical of this class of application.
What is the lifecycle status of the LPC804M101JDH24FP and is there a direct successor?
LPC804M101JDH24FP is Active with ROHS3 Compliant status. No official successor MPN or cross-reference alternate is indexed in the current record. For dual-source or supply resilience, the NXP LPC80xM series includes pin-compatible variants in different packages (SOIC, HVQFN); confirm the specific alternate order code through NXP's cross-reference tool or your authorized distribution partner before qualifying a second source into a BOM.
What does the -40°C to 105°C rating mean for I/O margins at 3.3V in an enclosed panel?
The -40°C to 105°C rating covers industrial enclosed-panel and control cabinet environments. At TA=105°C, output drive specs shift — the datasheet characterizes output current at 6mA sink/source; verify your receiving device's VIL/VIH thresholds against the guaranteed VOL/VOH at the high-temperature corner if the 21 I/O pins drive long PCB runs or fan out to multiple inputs. A conservative design holds >0.7×VDD headroom on VIH at temperature.