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NXP Semiconductors P89LPC936FDH,529
- Part No.:
- P89LPC936FDH,529
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
P89LPC936FDH,529.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,266
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Product details
Overview
P89LPC936FDH,529 from NXP Semiconductors is a low-power 8-bit microcontroller based on an accelerated two-clock 80C51 core, delivering six times the instruction throughput of standard 80C51 at same frequency. It integrates 16 kB byte-erasable flash, dual 8-bit ADCs (ADC0/ADC1), 512-byte data EEPROM, and a Capture/Compare Unit (CCU) - enabling embedded control in space-constrained industrial sensors and smart metering systems.
For engineers reviewing the P89LPC936FDH,529 datasheet, P89LPC936FDH,529 pinout, P89LPC936FDH,529 application, or P89LPC936FDH,529 equivalent, key selection criteria include its 28-pin TSSOP package with 23+ I/O pins, 2.4–3.6 V operation with 5 V-tolerant I/O, dual ADC/DAC capability, and integrated RTC/system timer for time-critical edge-node firmware.
Technical Context
The P89LPC936FDH,529 executes instructions in 2–4 clocks using a high-efficiency pipeline, achieving 111–222 ns cycle times at 18 MHz - enabling deterministic real-time response in motor control and power management loops. Its architecture includes dedicated hardware blocks: two 16-bit counter/timers configurable as PWM outputs, a 23-bit system timer usable as RTC, and dual analog comparators with selectable reference and inputs.
It supports In-System Programming (ISP) and In-Application Programming (IAP) via UART or I²C, with flash security bits preventing unauthorized code readout. The configurable on-chip oscillator (20 kHz–18 MHz) eliminates external crystal requirements, while the separate watchdog oscillator enables reliable oscillator fail detection without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Accelerated two-clock 80C51 CPU; executes all instructions except multiply/divide in 2–4 clocks at 18 MHz. |
| Flash Memory | 16 kB byte-erasable flash organized in 2 kB sectors and 64-byte pages; enables non-volatile data storage via single-byte erase. |
| RAM & EEPROM | 256-byte main RAM + 512-byte auxiliary RAM + 512-byte on-chip EEPROM for device serialization and parameter retention. |
| Analog Peripherals | Dual 4-input multiplexed 8-bit ADCs (ADC0/ADC1), two analog comparators, DAC0/DAC1 outputs, and CCU with input capture/output compare. |
| Communication Interfaces | Enhanced UART (fractional baud rate, break detect), 400 kHz I²C-bus port, SPI port, and programmable port I/O for protocol bridging. |
| Power & Packaging | 2.4–3.6 V supply; 5 V-tolerant I/O pins; 28-pin TSSOP (SOT361-1) with ≥23 user-configurable I/Os and internal reset/oscillator options. |
| Timing & Reliability | 23-bit system timer usable as RTC; watchdog timer with independent on-chip oscillator and 8-step prescaler; brownout detect with interrupt option. |
Pinout & Package
Package: 28-pin TSSOP (SOT361-1), body width 4.4 mm, lead pitch 0.65 mm - optimized for compact PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0.0/CMP2/KBI0/AD01 | Port 0 bit 0 / Comparator 2 output / Keypad input 0 / ADC0 channel 1 input | Multi-function I/O supporting analog sensing, keypad scanning, and comparator feedback in sensor interface designs. |
| P1.5/RST | Port 1 bit 5 / External reset input | Active-low reset pin; must be enabled for oscillator frequencies >12 MHz; used to force ISP mode during power-up. |
| P2.0/ICB/DAC0/AD03 | Port 2 bit 0 / Input Capture B / DAC0 output / ADC0 channel 3 input | Enables synchronized analog-to-digital conversion, precise timing capture, and analog output generation on same pin. |
| P2.6/OCA & P2.7/ICA | Output Compare A / Input Capture A | CCU channels supporting PWM generation, pulse-width measurement, and event timestamping for motor control timing. |
| P3.0/XTAL2/CLKOUT | CPU clock output / Oscillator output / Divided clock source | Provides CLKOUT (CPU clock ÷2) when internal RC or watchdog oscillator is active - useful for clock distribution or test probing. |
| VDD / VSS | Power supply / Ground | Single 2.4–3.6 V supply rail; only VDD and VSS required for operation when internal reset and oscillator are selected. |
Key Features
| Feature | Design Value |
|---|---|
| Byte-erasable flash | 16 kB flash with 64-byte page granularity allows firmware updates and non-volatile data logging without full chip erase. |
| Dual ADC subsystem | Two independent 8-bit ADCs (ADC0/ADC1) with 4-channel multiplexing each support simultaneous analog monitoring in multi-sensor nodes. |
| Configurable port I/O | All ports support quasi-bidirectional, open-drain, push-pull, or input-only modes - simplifying interface to LEDs, switches, and legacy peripherals. |
| Low-power operation | 1 μA typical current in total power-down mode (voltage comparators disabled); wake-up via LOW interrupt input enables ultra-low-energy sensing. |
| Integrated CCU | Capture/Compare Unit provides four PWM outputs (OCA–OCD), input capture (ICA/ICB), and output compare functions - eliminating external timing ICs. |
| On-chip oscillator | High-accuracy internal RC oscillator (20 kHz–18 MHz), fine-tunable via flash configuration bits - removes crystal, load capacitors, and board space. |
Applications
| Industrial Sensor Node | Smart Energy Metering |
|---|---|
|
Use Scenario: Compact environmental sensor node measuring temperature, humidity, and voltage with local data preprocessing and wireless transmission. IC Role / Device Role / Timing Role: Central controller executing sensor acquisition, ADC conversion, I²C communication with sensor ICs, and UART-based firmware update. Use Value: Dual ADCs enable concurrent sampling of multiple analog sources; 512-byte EEPROM stores calibration coefficients; 16 kB flash accommodates secure OTA update stack. |
Use Scenario: Residential electricity meter with tamper detection, pulse counting, and time-of-use tariff calculation. IC Role / Device Role / Timing Role: Real-time energy accumulator using 23-bit system timer as RTC; ADC0 monitors voltage/current shunts; CCU captures zero-crossing events. Use Value: Integrated RTC eliminates external timekeeping IC; 5 V-tolerant I/O interfaces directly with optocoupled pulse inputs; brownout detect ensures graceful shutdown during grid dips. |
| LED Lighting Controller | Embedded Keypad Interface |
|
Use Scenario: Dimmable LED driver with thermal monitoring, overcurrent protection, and DALI/UART command parsing. IC Role / Device Role / Timing Role: PWM generator (via CCU OCA/OCD) driving MOSFET gate; ADC1 reads thermistor and current sense; UART handles DALI protocol. Use Value: Four independent PWM outputs allow multi-channel dimming; LED drive capability (20 mA per pin) drives status indicators without external drivers. |
Use Scenario: Industrial HMI panel with 8-key keypad, backlight control, and debounce logic. IC Role / Device Role / Timing Role: Keypad interrupt controller using Port 0 pattern match; Port 1 drives LED backlight; UART reports key events to host MCU. Use Value: Eight dedicated keypad interrupt inputs (KBI0–KBI7) with programmable pattern matching reduce host polling overhead; Schmitt-trigger inputs ensure noise immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| P89LPC935FDH | 8 kB flash, identical peripheral set (dual ADC, CCU, EEPROM, 28-pin TSSOP), same core and voltage range. | Suitable where firmware size < 128 kB and no future feature expansion is planned; lower cost for fixed-function deployments. | Select P89LPC935FDH if application code footprint fits within 8 kB and long-term scalability is not required. |
| P89LPC936FHN | Same 16 kB flash and peripherals, but in 6×6 mm HVQFN28 (SOT788-1) package with thermal enhancement and no leads. | Better suited for high-density, thermally constrained PCBs (e.g., sealed meters or portable instruments) requiring improved heat dissipation. | Choose P89LPC936FHN for space-constrained or thermally demanding applications where TSSOP thermal resistance is insufficient. |
Compared with P89LPC935FDH, the P89LPC936FDH,529 offers double flash capacity for complex firmware and field upgrades; versus P89LPC936FHN, it trades thermal performance for easier hand-soldering and legacy TSSOP compatibility - critical for low-volume industrial production.
Availability
P89LPC936FDH,529 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy metering, LED lighting controllers, and embedded keypad interfaces requiring stable component supply across extended product lifecycles.
Supply support for P89LPC936FDH,529 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 leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in microcontrollers and mixed-signal integration.
The P89LPC936FDH,529 belongs to NXP's LPC900 family of enhanced 80C51 microcontrollers, designed specifically for cost-sensitive, low-power embedded control applications requiring high integration and robust in-system programmability.
FAQ
What is the maximum operating frequency of the P89LPC936FDH,529?
The P89LPC936FDH,529 operates at up to 18 MHz when using the external crystal/resonator or internal RC oscillator. At this frequency, its accelerated two-clock core achieves instruction cycle times of 111–222 ns - six times faster than a standard 80C51 running at the same clock speed. The oscillator frequency is user-selectable via flash configuration bits.
Does the P89LPC936FDH,529 support in-system programming (ISP)?
Yes, the P89LPC936FDH,529 supports In-System Programming via UART or I²C interfaces while mounted on the target board. This enables field firmware updates without removing the device. ISP activation requires holding P1.5 (RST) low during power-up, and flash security bits prevent unauthorized code readout after programming.
How many analog-to-digital converter (ADC) channels does the P89LPC936FDH,529 have?
The P89LPC936FDH,529 features two independent 8-bit ADC subsystems: ADC0 with four analog inputs (AD00–AD03) and ADC1 with four analog inputs (AD10–AD13). Both support multiplexed sampling, and their results are stored in dedicated data registers (AD0DATx, AD1DATx) accessible via SFRs.
What is the purpose of the Capture/Compare Unit (CCU) in the P89LPC936FDH,529?
The CCU in the P89LPC936FDH,529 provides four output compare channels (OCA–OCD) and two input capture channels (ICA, ICB). It enables precise PWM generation for motor or LED control, accurate pulse-width measurement for encoder or tachometer signals, and timestamping of external events - all without CPU intervention.
Is the P89LPC936FDH,529 compatible with 5 V logic interfaces?
Yes, all I/O pins of the P89LPC936FDH,529 are 5 V tolerant - they may be pulled up to or driven by 5.5 V signals while operating from a 2.4–3.6 V supply. This allows direct interfacing with legacy 5 V peripherals (e.g., sensors, displays, or level translators) without external voltage-shifting circuitry.
P89LPC936FDH,529 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 28-TSSOP (0.173", 4.40mm Width)
- Series:
- LPC900
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- 8051
- Core Size:
- 8-Bit
- Speed:
- 18MHz
- Connectivity:
- I2C, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, LED, POR, PWM, WDT
- Number of I/O:
- 26
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 512 x 8
- RAM Size:
- 768 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 3.6V
- Data Converters:
- A/D 8x8b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
P89LPC936FDH,529 FAQ
1.How can I place an order for P89LPC936FDH,529 through Aetrix?
Please submit a Request for Quotation (RFQ) for P89LPC936FDH,529 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 P89LPC936FDH,529 reliable?
The price and inventory of P89LPC936FDH,529 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P89LPC936FDH,529 is usually 5 days.
3.What payment methods are accepted for P89LPC936FDH,529?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P89LPC936FDH,529 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P89LPC936FDH,529?
P89LPC936FDH,529 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P89LPC936FDH,529 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 P89LPC936FDH,529?
For technical support, including P89LPC936FDH,529 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P89LPC936FDH,529 requirements.
6.How does Aetrix verify that P89LPC936FDH,529 is sourced from the original manufacturer or authorized distributors?
All P89LPC936FDH,529 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 P89LPC936FDH,529 meets industry standards.
7.What is the process for return or replacement of P89LPC936FDH,529?
All P89LPC936FDH,529 units undergo pre-shipment inspection (PSI). If there is an issue with P89LPC936FDH,529, 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 P89LPC936FDH,529 part is unused and in its original packaging.
Return procedure for P89LPC936FDH,529:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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