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NXP Semiconductors P89LPC932A1FHN,151
- Part No.:
- P89LPC932A1FHN,151
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 28-VQFN Exposed Pad
- Datasheet:
-
P89LPC932A1FHN,151.pdf
- Description:
- IC MCU 8BIT 8KB FLASH 28HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,641
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Product details
Overview
P89LPC932A1FHN,151 from NXP Semiconductors is an 8-bit accelerated two-clock 80C51 microcontroller in a 28-terminal HVQFN package, featuring 8 kB byte-erasable flash, 512-byte on-chip data EEPROM, dual analog comparators, and integrated I²C/SPI/UART interfaces. It operates from 2.4 V to 3.6 V with 5 V-tolerant I/Os and supports real-time clock functionality via its 23-bit system timer - deployed in industrial sensor nodes and low-power control modules.
For engineers reviewing the P89LPC932A1FHN,151 datasheet, P89LPC932A1FHN,151 pinout, P89LPC932A1FHN,151 application, or P89LPC932A1FHN,151 equivalent, key selection considerations include its HVQFN28 thermal-enhanced package, byte-erasable flash for field firmware updates, internal RC oscillator fine-tuning capability, and keypad interrupt support across Port 0 pins.
Technical Context
The P89LPC932A1FHN,151 implements an enhanced 80C51 core executing instructions in two to four clocks - delivering six times the throughput of standard 80C51 at identical clock frequency. Its architecture integrates a Capture/Compare Unit (CCU) supporting PWM generation, input capture, and output compare on four independent channels (OCA–OCD, ICA–ICB), plus dual 16-bit timers and a 23-bit system timer usable as RTC.
It features a programmable on-chip oscillator with selectable frequency range (20 kHz–18 MHz), internal RC oscillator with trimmable accuracy, and dedicated watchdog timer with independent on-chip oscillator for fail-detect operation. All I/O ports support Schmitt-trigger inputs and configurable output modes (quasi-bidirectional, open-drain, push-pull, input-only).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Accelerated two-clock 80C51 - executes all instructions in 2–4 clocks, enabling 18 MHz operation with 111–222 ns instruction cycle time. |
| Flash Memory | 8 kB byte-erasable flash organized in 1 kB sectors and 64-byte pages - allows non-volatile data storage without external EEPROM. |
| Data Memory | 256-byte RAM + 512-byte auxiliary RAM + 512-byte on-chip data EEPROM - supports device serialization and parameter retention across power cycles. |
| Analog Functions | Dual analog comparators with selectable inputs and shared reference (CMPREF); each comparator output directly accessible on port pins. |
| Communication | Enhanced UART (fractional baud rate, break detect), 400 kHz I²C-bus, and SPI - all implemented in hardware with dedicated SFRs and interrupt support. |
| Timers & RTC | Two 16-bit counter/timers (T0/T1), one 23-bit system timer - configurable as RTC with calendar/time-of-day capability and alarm interrupt. |
| Power & I/O | 2.4–3.6 V operation; 23–26 I/O pins (23 minimum in HVQFN28); all I/Os 5 V tolerant up to 5.5 V - simplifies level-shifting in mixed-voltage systems. |
Pinout & Package
Package: HVQFN28 (plastic thermal enhanced very thin quad flat package; no leads; 28 terminals; body 6 × 6 × 0.85 mm; SOT788-1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pin 17) | Power supply input | Primary 2.4–3.6 V supply rail; powers core, peripherals, and I/Os - requires local decoupling per layout guidelines. |
| VSS (Pin 3) | Ground reference | 0 V return path for all internal circuits; must be low-impedance connection to minimize noise coupling. |
| P0.0/CMP2/KBI0 (Pin 27) | Multi-function I/O | Port 0 bit 0; comparator 2 output; keypad interrupt 0 - enables wake-up on analog event or keypress without external logic. |
| P1.5/RST (Pin 2) | Reset input | Active-low reset; also used to force ISP mode at power-up - requires external pull-up and debouncing for reliable operation above 12 MHz. |
| P3.0/XTAL2/CLKOUT (Pin 5) | Oscillator/clock output | Crystal oscillator output or CPU clock divided-by-2 - provides traceable clock signal for debug or peripheral synchronization. |
| P2.6/OCA (Pin 23) | CCU output | Output Compare A channel - generates precise PWM or toggle outputs synchronized to CCU timer, usable for motor control or LED dimming. |
Key Features
| Feature | Design Value |
|---|---|
| In-Application Programming (IAP) | Enables runtime flash code modification - critical for over-the-air firmware updates and dynamic feature enablement without full reflash. |
| Byte-erasable flash memory | Allows individual byte erasure within code space - eliminates need for separate NV data storage and reduces BOM count. |
| Configurable port output modes | Per-pin selection of quasi-bidirectional, open-drain, push-pull, or input-only - optimizes drive strength, power, and interface compatibility. |
| Port input pattern match detection | Generates interrupt when Port 0 pins match programmable 8-bit pattern - enables low-power key scanning with zero CPU overhead. |
| Controlled slew rate outputs | ~10 ns minimum ramp time on all port outputs - reduces EMI emissions and improves signal integrity in dense PCB layouts. |
Applications
| Industrial Sensor Node | Smart Meter Interface |
|---|---|
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and voltage data at 10-second intervals. IC Role / Device Role / Timing Role: Central controller managing ADC sampling, I²C sensor reads, RTC timestamping, and low-power sleep/wake cycles. Use Value: 1 µA typical power-down current with voltage comparator wake-up enables >5-year battery life; 512-byte EEPROM stores calibration offsets and last-read timestamps. | Use Scenario: Sub-metering module interfacing with utility-grade energy sensors and RS-485 communication stack. IC Role / Device Role / Timing Role: Protocol translator and data aggregator handling pulse counting, kWh accumulation, and secure I²C EEPROM logging. Use Value: Dual analog comparators condition pulse inputs from current transformers; 8 kB flash hosts dual-application firmware (metering + diagnostics). |
| LED Lighting Controller | Keypad-Based HMI Panel |
Use Scenario: Dimmable LED driver board with thermal monitoring and DALI bus interface. IC Role / Device Role / Timing Role: PWM generator (via OCA–OCD), analog sensing front-end, and DALI physical layer controller. Use Value: Four independent CCU channels provide simultaneous multi-channel PWM; 5 V-tolerant I/Os interface directly with DALI line drivers without level shifters. | Use Scenario: Appliance control panel with 8-key matrix and status LEDs. IC Role / Device Role / Timing Role: Keypad scanner, LED driver, and serial command processor for host MCU communication. Use Value: Hardware-accelerated KBI engine scans entire 8-key matrix with single interrupt; 20 mA LED drive per port pin eliminates external drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| P89LPC935FHN | 16 kB flash, 1 kB EEPROM, adds CAN controller and extra I/O - larger code footprint and higher pin count (HVQFN32). | Requires CAN bus integration; not drop-in compatible due to different package and peripheral set. | Select when CAN protocol support and extended memory are required; redesign needed for pinout and firmware adaptation. |
| EFM8BB31F16G-QFN24 | Silicon Labs 8051-based MCU with 16 kB flash, 2.25 kB RAM, USB interface, and higher clock speed (50 MHz); QFN24 package. | Lacks analog comparators and dedicated keypad interrupt; USB replaces UART/I²C for host connectivity. | Prefer for USB-hosted devices or where larger RAM and faster execution outweigh loss of comparator/KBI features. |
Compared with P89LPC932A1FHN,151, the P89LPC935FHN extends memory and adds CAN but increases footprint and complexity, while the EFM8BB31F16G-QFN24 trades analog peripherals for USB and speed - making P89LPC932A1FHN,151 optimal for cost-sensitive, analog-rich, low-power embedded control.
Availability
P89LPC932A1FHN,151 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart meter interfaces, LED lighting controllers, and keypad-based HMI panels requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for P89LPC932A1FHN,151 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 focused on secure connectivity solutions for automotive, industrial, and IoT applications.
The P89LPC932A1 belongs to NXP's LPC900 family of enhanced 80C51 microcontrollers, designed specifically for cost-sensitive, low-power embedded control applications requiring high integration, field-programmable flash, and robust analog/mixed-signal peripherals.
FAQ
What is the maximum operating frequency of the P89LPC932A1FHN,151?
The P89LPC932A1FHN,151 supports a maximum CPU clock frequency of 18 MHz when using the external crystal oscillator or internal RC oscillator with appropriate trimming. At this frequency, instruction cycle times range from 111 ns to 222 ns - six times faster than a standard 80C51 running at the same clock rate. The internal oscillator's accuracy is user-adjustable via the TRIM register.
Does the P89LPC932A1FHN,151 support in-system programming (ISP)?
Yes, the P89LPC932A1FHN,151 supports Serial Flash In-System Programming (ISP) via its UART interface, allowing firmware updates while the device is soldered into the target application. This capability requires no external programming hardware beyond a simple level-shifter and is enabled by factory-default boot code - verified in the official NXP P89LPC932A1 User Manual and supported by tools like Flash Magic v1.98+.
How many I/O pins does the P89LPC932A1FHN,151 provide in its HVQFN28 package?
The P89LPC932A1FHN,151 in HVQFN28 provides 23 I/O pins minimum - including all Port 0 (8 pins), Port 1 (8 pins), Port 2 (8 pins), and Port 3 (2 pins), with functional overlap on special-purpose pins. When using on-chip oscillator and reset options, up to 26 usable I/Os are available, as confirmed in the NXP ordering information table and pin description section for SOT788-1.
Can the P89LPC932A1FHN,151 operate without external crystal components?
Yes, the P89LPC932A1FHN,151 includes a high-accuracy internal RC oscillator that is selectable and fine-tunable via the TRIM register - eliminating the need for external crystal or resonator components. This option supports frequencies from 20 kHz to 18 MHz and is explicitly enabled by setting the RCCLK bit in the TRIM register, independent of UCFG1 configuration bits.
What is the purpose of the "keypad interrupt" feature on the P89LPC932A1FHN,151?
The keypad interrupt (KBI) feature on the P89LPC932A1FHN,151 enables hardware-accelerated scanning of up to eight keys connected to Port 0 pins (KBI0–KBI7). It generates an interrupt when any configured key transitions, and supports pattern-match detection - allowing the CPU to remain in low-power mode until a valid keypress occurs, reducing active time and extending battery life in HMI applications.
P89LPC932A1FHN,151 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 28-VQFN Exposed Pad
- Series:
- LPC900
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- 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:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 768 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 3.6V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
P89LPC932A1FHN,151 FAQ
1.How can I place an order for P89LPC932A1FHN,151 through Aetrix?
Please submit a Request for Quotation (RFQ) for P89LPC932A1FHN,151 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 P89LPC932A1FHN,151 reliable?
The price and inventory of P89LPC932A1FHN,151 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P89LPC932A1FHN,151 is usually 5 days.
3.What payment methods are accepted for P89LPC932A1FHN,151?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P89LPC932A1FHN,151 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P89LPC932A1FHN,151?
P89LPC932A1FHN,151 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P89LPC932A1FHN,151 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 P89LPC932A1FHN,151?
For technical support, including P89LPC932A1FHN,151 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P89LPC932A1FHN,151 requirements.
6.How does Aetrix verify that P89LPC932A1FHN,151 is sourced from the original manufacturer or authorized distributors?
All P89LPC932A1FHN,151 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 P89LPC932A1FHN,151 meets industry standards.
7.What is the process for return or replacement of P89LPC932A1FHN,151?
All P89LPC932A1FHN,151 units undergo pre-shipment inspection (PSI). If there is an issue with P89LPC932A1FHN,151, 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 P89LPC932A1FHN,151 part is unused and in its original packaging.
Return procedure for P89LPC932A1FHN,151:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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