NXP Semiconductors P80C552IFA/08,512
- Part No.:
- P80C552IFA/08,512
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 68-LCC (J-Lead)
- Datasheet:
-
P80C552IFA/08,512.pdf
- Description:
- IC MCU 8BIT ROMLESS 68PLCC
- Quantity:
- Payment:

- Shipping:

Inventory:2,534
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Product details
Overview
P80C552IFA/08,512 from NXP Semiconductors (formerly Philips) is a ROMless 8-bit microcontroller based on the 80C51 core, featuring a 10-bit ADC with eight analog inputs, dual 8-bit PWM outputs, an additional 16-bit capture/compare timer (T2), two standard 16-bit timers, I²C and UART serial interfaces, and watchdog timer. It operates at up to 24 MHz and targets industrial motor control and sensor interface applications requiring mixed-signal timing precision.
For engineers reviewing the P80C552IFA/08,512 datasheet, P80C552IFA/08,512 pinout, P80C552IFA/08,512 application, or P80C552IFA/08,512 equivalent, this device offers verified 10-bit ADC linearity (±2 LSB INL), dual PWM with synchronized output capability, I²C master/slave support, and −40 °C to +85 °C operation in PLCC-68 package - critical for embedded control systems with analog feedback and deterministic timing.
Technical Context
The P80C552IFA/08,512 implements the 80C51 instruction set with full binary and BCD arithmetic support and bit-level manipulation. Its enhanced peripheral set includes a dedicated 16-bit timer T2 with four capture latches and three compare registers, enabling precise event timestamping and waveform generation independent of the main CPU.
It integrates dual serial interfaces: a full-duplex UART compatible with 80C51 and an I²C-bus port with byte-oriented master/slave functions, supporting clock rates up to 100 kHz (with fixed dividers limiting 24 MHz operation to sub-100 kHz). The device supports idle and power-down modes, with power-down current ≤50 µA at VPD ≥2 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 80C51-compatible 8-bit architecture; executes 58% of instructions in 0.5 µs at 24 MHz |
| ADC Resolution | 10-bit SAR ADC with ±2 LSB integral non-linearity; supports eight multiplexed analog inputs |
| PWM Outputs | Two independent 8-bit resolution PWM channels (PWM0/PWM1) with synchronized timing control |
| Timer System | Three 16-bit timers: two standard (T0/T1), one enhanced (T2) with capture/compare and reset (RT2) inputs |
| Serial Interfaces | UART (full-duplex) + I²C-bus (master/slave); I²C clock max 100 kHz (limited by fixed dividers at 24 MHz) |
| Operating Range | −40 °C to +85 °C; supply voltage 4.5 V to 5.5 V; max oscillator frequency 24 MHz |
| Power Modes | Idle mode (CPU halted, peripherals active, 12.5 mA @ 24 MHz); power-down mode (oscillator stopped, RAM retained, ≤50 µA) |
Pinout & Package
Package: Plastic Leaded Chip Carrier (PLCC-68), SOT188-2, lead-free compatible per original Philips specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST | Reset input/output | Active-high reset input; outputs reset pulse on T3 overflow; requires ≥24 oscillator periods high for valid reset |
| XTAL1/XTAL2 | Oscillator interface | XTAL1: CMOS inverter input for crystal or external clock; XTAL2: inverter output; open when external clock used |
| P0.0–P0.7 | Multiplexed address/data bus | Open-drain I/O; provides low-order address/data during external memory access; internal pull-ups active on '1' |
| P5.0–P5.7 | Analog input port | Dedicated 8-channel analog input for ADC; no digital I/O function; referenced to AVREF+/AVREF− |
| PWM0/PWM1 | Digital PWM outputs | Direct 8-bit PWM outputs; software-configurable duty cycle; synchronized start capability via STADC |
| STADC | ADC trigger control | Hardware-start input for ADC conversion; complements software-triggered conversions; must not float |
| EW | Watchdog enable | Input that enables T3 watchdog timer and disables power-down mode; must be actively driven, not floating |
| AVDD/AVSS | Analog power domain | Separate 5 V analog supply (AVDD) and ground (AVSS); decoupling required to maintain ADC accuracy |
Key Features
| Feature | Design Value |
|---|---|
| 10-bit ADC with MUX | Eight analog inputs with ±2 LSB integral non-linearity; sampling time 8 oscillator cycles; conversion time 50 cycles |
| Dual 8-bit PWM | Two independent PWM outputs with synchronized start; supports motor phase control and LED dimming |
| Capture/Compare Timer T2 | 16-bit timer with four capture latches and three compare registers; enables precise edge detection and waveform generation |
| I²C and UART coexistence | Full-duplex UART + I²C-bus on shared pins (P1.6/SCL, P1.7/SDA); supports multi-master and slave addressing |
| Low-power operation | Idle mode (12.5 mA @ 24 MHz) and power-down mode (≤50 µA); controlled via PCON register bits |
Applications
| Industrial Motor Control | Sensor Signal Conditioning |
|---|---|
Use Scenario: Closed-loop speed control of BLDC motors using hall-effect feedback and current sensing. IC Role / Device Role / Timing Role: Central controller executing PID loop, reading ADC channels for current/voltage, generating synchronized PWM for gate drivers, and managing I²C communication with temperature sensors. Use Value: Integrated 10-bit ADC and dual PWM eliminate external signal conditioning ICs; capture timer T2 precisely timestamps hall sensor edges for commutation timing. | Use Scenario: Multi-sensor environmental monitoring node with analog temperature, pressure, and humidity inputs. IC Role / Device Role / Timing Role: Analog front-end aggregator converting eight sensor signals, performing local calibration, and transmitting data via I²C to host MCU. Use Value: On-chip 10-bit ADC with channel-to-channel matching (±1 LSB) ensures consistent readings across sensors without external gain/offset trimming. |
| Automotive Body Electronics | Programmable Power Supply Monitoring |
Use Scenario: Dashboard lighting control with adaptive dimming and fault reporting in automotive cabins. IC Role / Device Role / Timing Role: PWM generator for LED backlighting, ADC monitor for supply rail stability, and UART diagnostics interface. Use Value: −40 °C to +85 °C rating and watchdog timer ensure reliability in vehicle environments; EW pin allows external safety logic to disable power-down during fault conditions. | Use Scenario: Real-time monitoring of multiple DC rails in telecom power systems with overvoltage/undervoltage alarms. IC Role / Device Role / Timing Role: High-accuracy analog monitor sampling up to eight rails, comparing against reference thresholds, and asserting interrupt flags. Use Value: 10-bit ADC with ±3 LSB absolute voltage error enables detection of <1% supply deviations; STADC pin allows hardware-triggered sampling on power-event interrupts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT89C51RC2-UM | Enhanced 8051 core with 32 kB Flash, 1 kB RAM, no integrated ADC or PWM; requires external DAC/PWM ICs | Lacks native analog interface; suitable only where external signal chain is acceptable | Select if firmware updateability and larger code space outweigh need for integrated analog peripherals |
| ST7FLITE09Y0M6 | 8-bit ST7 core with 10-bit ADC (8 ch), single PWM, no I²C; 20 MHz max, −40 °C to +85 °C | Missing second PWM and I²C interface; lower instruction throughput than 80C51 at same frequency | Choose when cost sensitivity and basic analog control suffice, but dual PWM or I²C bus is not required |
Compared with AT89C51RC2-UM and ST7FLITE09Y0M6, the P80C552IFA/08,512 uniquely delivers integrated dual PWM, I²C+UART concurrency, and verified 10-bit ADC linearity in a single PLCC-68 package - reducing BOM count and PCB area for mixed-signal industrial controllers.
Availability
P80C552IFA/08,512 is available at Aetrix Electronics and suitable for industrial motor control, sensor signal conditioning, and automotive body electronics requiring stable component supply across extended temperature ranges.
Supply support for P80C552IFA/08,512 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, formerly Philips Semiconductors, is a global leader in high-performance mixed-signal ICs for automotive, industrial, and consumer applications.
The P80C552IFA/08,512 belongs to the legacy 8XC552 family designed specifically for cost-sensitive, real-time embedded control systems requiring integrated analog acquisition, deterministic PWM, and dual serial interfaces without external glue logic.
FAQ
What is the maximum operating frequency supported by the P80C552IFA/08,512?
The P80C552IFA/08,512 supports a maximum oscillator frequency of 24 MHz, validated for operation across its full −40 °C to +85 °C temperature range. At this frequency, 58% of instructions execute in 0.5 µs, and multiply/divide operations complete in 2 µs. The device is rated for 3.5–24 MHz operation with 4.5–5.5 V supply.
Does the P80C552IFA/08,512 include on-chip program memory?
No, the P80C552IFA/08,512 is the ROMless variant of the 8XC552 family. It requires external program memory when EA is low, or executes from internal RAM during development. In contrast, the P83C552IFA/xxx variant contains 8 kB mask-programmable ROM. The P80C552IFA/08,512 retains full peripheral functionality including ADC, PWM, and timers.
How many analog input channels does the P80C552IFA/08,512 ADC support?
The P80C552IFA/08,512 features a single 10-bit successive-approximation ADC with eight multiplexed analog input channels (ADC0–ADC7), mapped exclusively to Port 5 pins (P5.0–P5.7). These inputs are dedicated analog-only; Port 5 has no digital I/O capability. The ADC achieves ±2 LSB integral non-linearity and ±1 LSB channel-to-channel matching.
What serial communication interfaces are integrated into the P80C552IFA/08,512?
The P80C552IFA/08,512 integrates two independent serial interfaces: a full-duplex UART compatible with the standard 80C51 and an I²C-bus port supporting both master and slave byte-oriented transactions. The I²C interface uses P1.6 (SCL) and P1.7 (SDA) with thresholds compliant to I²C specification, and supports clock rates up to 100 kHz.
What power-saving modes are available on the P80C552IFA/08,512?
The P80C552IFA/08,512 provides two hardware-controlled low-power modes: idle mode (CPU halted, RAM/timers/serial/IRQ active, 12.5 mA @ 24 MHz) and power-down mode (oscillator stopped, RAM retained, ≤50 µA). Both are controlled via bits in the PCON special function register. The EW pin disables power-down mode when asserted.
P80C552IFA/08,512 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 68-LCC (J-Lead)
- Series:
- 80C
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- 8051
- Core Size:
- 8-Bit
- Speed:
- 24MHz
- Connectivity:
- EBI/EMI, I2C, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 40
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- -
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
P80C552IFA/08,512 FAQ
1.How can I place an order for P80C552IFA/08,512 through Aetrix?
Please submit a Request for Quotation (RFQ) for P80C552IFA/08,512 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 P80C552IFA/08,512 reliable?
The price and inventory of P80C552IFA/08,512 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P80C552IFA/08,512 is usually 5 days.
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P80C552IFA/08,512 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P80C552IFA/08,512 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 P80C552IFA/08,512?
For technical support, including P80C552IFA/08,512 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P80C552IFA/08,512 requirements.
6.How does Aetrix verify that P80C552IFA/08,512 is sourced from the original manufacturer or authorized distributors?
All P80C552IFA/08,512 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 P80C552IFA/08,512 meets industry standards.
7.What is the process for return or replacement of P80C552IFA/08,512?
All P80C552IFA/08,512 units undergo pre-shipment inspection (PSI). If there is an issue with P80C552IFA/08,512, 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 P80C552IFA/08,512 part is unused and in its original packaging.
Return procedure for P80C552IFA/08,512:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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