My Inquiry
My Account
NXP Semiconductors P80C552EBB/08,557
- Part No.:
- P80C552EBB/08,557
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-BQFP
- Datasheet:
-
P80C552EBB/08,557.pdf
- Description:
- IC MCU 8BIT ROMLESS 80PQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,414
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P80C552EBB/08,557 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), I²C-bus and UART serial interfaces, and two power-saving modes (idle and power-down). It operates at up to 16 MHz and targets embedded control in industrial sensor systems.
For engineers reviewing the P80C552EBB/08,557 datasheet, P80C552EBB/08,557 pinout, P80C552EBB/08,557 application, or P80C552EBB/08,557 equivalent, this page delivers verified technical context, exact pin functions for QFP-64 packaging, real-world use scenarios in motor control and data acquisition, and two validated alternative parts with documented functional differences.
Technical Context
The P80C552EBB/08,557 implements the standard 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 timing and synchronized waveform generation.
It integrates dual serial interfaces: a full-duplex UART compatible with 80C51 and an I²C-bus port supporting both master and slave byte-oriented transfers. The device uses separate analog and digital power domains (AVDD/AVSS, VDD/VSS) and supports external memory expansion up to 64 kbytes via multiplexed address/data bus on Port 0 and high-order address on Port 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 80C51-compatible 8-bit RISC core with 100+ instructions; executes 58% of instructions in 0.75 µs at 16 MHz. |
| ADC Resolution | 10-bit successive-approximation ADC with ±1 LSB differential non-linearity and ±2 LSB integral non-linearity - enables accurate sensor signal digitization. |
| PWM Outputs | Two independent 8-bit resolution PWM outputs (PWM0, PWM1); used for analog voltage synthesis or motor speed control without external DACs. |
| Timer Resources | Three 16-bit timers: two standard (T0/T1), one enhanced (T2) with capture/compare capability - supports input capture, output compare, and high-speed waveform generation. |
| Memory Architecture | ROMless design (no internal program memory); requires external EPROM/Flash; 256 × 8 bytes on-chip RAM expandable to 64 kbytes via external bus. |
| Operating Frequency | 3.5–16 MHz crystal or external clock; supports 0 °C to +70 °C ambient temperature range in Plastic Quad Flat Pack (QFP-64) package. |
| Power Modes | Idle mode (CPU halted, peripherals active) draws ≤10 mA at 16 MHz; power-down mode (oscillator stopped) draws ≤50 µA - extends battery life in portable systems. |
Pinout & Package
Package: Plastic Quad Flat Pack (QFP-64), SOT318-2, 0 °C to +70 °C operating range.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0.0–P0.7 | Port 0 bidirectional I/O / AD0–AD7 / A0–A7 / D0–D7 | Multiplexed low-order address/data bus during external memory access; open-drain with internal pull-ups when used as I/O. |
| P1.0–P1.3 | CT0I–CT3I | Capture timer input signals for T2; latch external event edges for time-stamping. |
| P1.4 | T2 | T2 event input - increments T2 on rising edge for external event counting. |
| P1.5 | RT2 | T2 reset input - resets T2 counter on rising edge. |
| P1.6/P1.7 | SCL/SDA | I²C-bus clock and data lines; meet I²C specification thresholds (VIL ≤1.5 V, VIH ≥3.0 V). |
| P3.0/P3.1 | RxD/TxD | Full-duplex UART serial interface; electrically compatible with standard 80C51 UART timing. |
| P5.0–P5.7 | ADC0–ADC7 | Eight single-ended analog input channels for 10-bit ADC; share pins with Port 5 input function. |
| PWM0/PWM1 | Dual PWM outputs | 8-bit resolution pulse-width modulated outputs; generate variable-duty-cycle waveforms for analog control or LED dimming. |
| STADC | ADC start trigger | Hardware-initiated ADC conversion start; must be actively driven - cannot float. |
| EW | Watchdog enable | Enables T3 watchdog timer and disables power-down mode; must be actively driven - cannot float. |
Key Features
| Feature | Design Value |
|---|---|
| 10-bit ADC with 8-channel multiplexer | Supports simultaneous sampling of multiple sensors (e.g., temperature, pressure, current) with <±3 LSB absolute voltage error at 5.12 V reference. |
| Dual 8-bit PWM outputs | Generates two independent, synchronized PWM waveforms - eliminates need for external PWM ICs in motor drive or lighting control. |
| Enhanced T2 timer with capture/compare | Four capture latches record precise timestamps of external events; three compare registers generate programmable output toggles or interrupts. |
| I²C-bus and UART dual serial ports | Enables concurrent communication with I²C sensors (e.g., EEPROM, temperature ICs) and host controllers or debug interfaces over UART. |
| Separate analog/digital power domains | AVDD/AVSS isolation reduces noise coupling into ADC measurements - critical for sub-10 mV signal accuracy. |
Applications
| Industrial Motor Control | Data Acquisition System |
|---|---|
Use Scenario: Closed-loop speed regulation of 3-phase BLDC motors using hall-effect feedback and current sensing. IC Role / Device Role / Timing Role: Central controller executing commutation logic, reading hall sensors via Port 1 inputs, sampling phase currents via ADC0–ADC2, and driving gate drivers via PWM0/PWM1. Use Value: Integrated capture/compare timer (T2) precisely aligns PWM edges with rotor position; 10-bit ADC resolves current changes down to 12-bit effective resolution with oversampling. | Use Scenario: Multi-channel environmental monitoring node logging temperature, humidity, and CO₂ in HVAC ducts. IC Role / Device Role / Timing Role: Sensor hub acquiring analog readings from thermistors (ADC0), capacitive humidity sensors (ADC1), and NDIR CO₂ modules (ADC2), then transmitting via UART to gateway. Use Value: Dual serial interfaces allow local I²C sensor configuration and upstream UART telemetry; idle mode reduces average current to <10 mA during 100 ms sampling intervals. |
| Automotive Body Control Module | Programmable Power Supply Controller |
Use Scenario: Dashboard backlight dimming and mirror heater control in entry-level vehicles. IC Role / Device Role / Timing Role: PWM generator modulating LED strings (PWM0) and resistive heaters (PWM1); monitors potentiometer wiper (ADC3) and switch inputs (Port 3). Use Value: Hardware PWM outputs eliminate software timing jitter; 8-bit resolution provides 256-step dimming granularity with <1% duty cycle linearity error. | Use Scenario: Lab-grade bench power supply regulating 0–30 V / 0–5 A output with remote sensing and digital control. IC Role / Device Role / Timing Role: Precision voltage/current monitor (ADC4–ADC5), DAC replacement (PWM0 filtered to analog), and serial command interpreter (UART + I²C). Use Value: 10-bit ADC measures sense resistor voltage with ±2 LSB offset error; PWM0 + RC filter achieves 12-bit effective DAC resolution for analog setpoint generation. |
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 | 8051-compatible with 32 kB Flash, no integrated ADC or PWM; requires external ADC for analog sensing. | Lacks native 10-bit ADC and dual PWM - unsuitable for sensor-heavy or analog-output designs without added components. | Select only if firmware updateability (Flash) outweighs need for integrated analog peripherals. |
| ST7FLITE09Y0M6 | 8-bit ST7 core with 10-bit ADC (8 ch), 2x PWM, but no I²C; UART only; max 8 MHz operation. | Lower clock speed limits real-time response; missing I²C restricts sensor compatibility versus P80C552EBB/08,557. | Prefer where cost sensitivity dominates and I²C is unused; verify timing margins for 16 MHz-critical tasks. |
Compared with AT89C51RC2-UM and ST7FLITE09Y0M6, the P80C552EBB/08,557 uniquely combines 16 MHz operation, hardware I²C, dual PWM, and 10-bit ADC in a single chip - reducing BOM count and PCB area in mixed-signal embedded systems.
Availability
P80C552EBB/08,557 is available at Aetrix Electronics and suitable for industrial motor control, environmental data acquisition, automotive body electronics, and programmable power supply applications requiring stable component supply across extended product lifecycles.
Supply support for P80C552EBB/08,557 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 company formed from the spin-off of Philips Semiconductors in 2006, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The P80C552EBB/08,557 belongs to NXP's legacy 80C51-based microcontroller family, designed specifically for cost-sensitive, mixed-signal embedded control applications requiring integrated analog peripherals and deterministic real-time performance.
FAQ
What is the maximum operating frequency supported by the P80C552EBB/08,557?
The P80C552EBB/08,557 supports a maximum oscillator frequency of 16 MHz, as confirmed by its ordering code suffix "EBB" (indicating 0 °C to +70 °C, 16 MHz version). At this frequency, 58% of instructions execute in 0.75 µs, and multiply/divide operations complete in 3 µs. Exceeding 16 MHz violates the device's AC electrical specifications and may cause timing failures.
Does the P80C552EBB/08,557 include on-chip program memory?
No, the P80C552EBB/08,557 is the ROMless variant of the 8XC552 family. It contains no internal program memory and requires external EPROM or Flash memory accessed via its multiplexed Port 0 (address/data) and Port 2 (high-order address) buses. This distinguishes it from the mask-ROM 83C552 and EPROM 87C552 variants.
How many analog input channels does the P80C552EBB/08,557 ADC support?
The P80C552EBB/08,557 integrates a single 10-bit successive-approximation ADC with eight multiplexed analog input channels (ADC0–ADC7), mapped directly to Port 5 pins (P5.0–P5.7). All eight channels share the same reference (AVREF+ and AVREF−) and conversion engine, supporting sequential or single-channel sampling.
What are the key differences between the P80C552EBB/08,557 and the P83C552EBB/08,557?
The P80C552EBB/08,557 is ROMless, while the P83C552EBB/08,557 contains 8 kbytes of mask-programmable ROM. Both share identical pinout, peripheral set, timing, and electrical characteristics. The ROMless version requires external program memory and is selected when field firmware updates or prototyping flexibility are needed.
Which serial interfaces are implemented on the P80C552EBB/08,557?
The P80C552EBB/08,557 implements two independent serial interfaces: a full-duplex UART (RxD/TxD on P3.0/P3.1) compatible with the standard 80C51, and an I²C-bus port (SCL/SDA on P1.6/P1.7) supporting both master and slave byte-oriented transfers. Neither interface shares pins or resources - they operate concurrently.
P80C552EBB/08,557 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 80-BQFP
- Series:
- 80C
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- 8051
- Core Size:
- 8-Bit
- Speed:
- 16MHz
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
P80C552EBB/08,557 FAQ
1.How can I place an order for P80C552EBB/08,557 through Aetrix?
Please submit a Request for Quotation (RFQ) for P80C552EBB/08,557 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 P80C552EBB/08,557 reliable?
The price and inventory of P80C552EBB/08,557 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P80C552EBB/08,557 is usually 5 days.
3.What payment methods are accepted for P80C552EBB/08,557?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P80C552EBB/08,557 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P80C552EBB/08,557?
P80C552EBB/08,557 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P80C552EBB/08,557 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 P80C552EBB/08,557?
For technical support, including P80C552EBB/08,557 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P80C552EBB/08,557 requirements.
6.How does Aetrix verify that P80C552EBB/08,557 is sourced from the original manufacturer or authorized distributors?
All P80C552EBB/08,557 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 P80C552EBB/08,557 meets industry standards.
7.What is the process for return or replacement of P80C552EBB/08,557?
All P80C552EBB/08,557 units undergo pre-shipment inspection (PSI). If there is an issue with P80C552EBB/08,557, 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 P80C552EBB/08,557 part is unused and in its original packaging.
Return procedure for P80C552EBB/08,557:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P80C552EBB/08,557 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
