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NXP Semiconductors P80C552IBA/08,518
- Part No.:
- P80C552IBA/08,518
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 68-LCC (J-Lead)
- Datasheet:
-
P80C552IBA/08,518.pdf
- Description:
- IC MCU 8BIT ROMLESS 68PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,581
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Product details
Overview
P80C552IBA/08,518 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 and UART serial interfaces, and two power-saving modes (idle and power-down). It operates at up to 24 MHz and targets industrial control, sensor interface, and motor timing applications.
For engineers reviewing the P80C552IBA/08,518 datasheet, P80C552IBA/08,518 pinout, P80C552IBA/08,518 application, or P80C552IBA/08,518 equivalent, this page delivers verified technical context, package-specific pin functions, real-world use cases, and validated alternative options for legacy 8051-based embedded designs requiring analog acquisition and precise timing.
Technical Context
The P80C552IBA/08,518 implements a fully compatible 80C51 instruction set with extended peripherals: a dedicated 16-bit timer T2 with four capture latches and three compare registers, enabling synchronized high-speed output generation and event timestamping. Its dual PWM outputs (PWM0/PWM1) support independent duty-cycle control with programmable resolution.
It integrates an 8-input, 10-bit successive-approximation ADC with configurable reference (AVREF±), sampling time of 8 oscillator cycles, and conversion time of 50 cycles. The I²C-bus port supports master/slave byte-oriented transfers, while the UART remains fully 80C51-compatible - both operate synchronously with the same 24 MHz clock source.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 80C51-compatible 8-bit RISC core; executes 58% of instructions in 0.5 µs at 24 MHz. |
| Max Clock Frequency | 24 MHz; enables sub-microsecond instruction timing for real-time control loops. |
| ADC Resolution | 10-bit SAR ADC with ±2 LSB integral non-linearity; supports precision sensor signal digitization. |
| PWM Outputs | Two independent 8-bit PWM channels (PWM0, PWM1); suitable for LED dimming or basic motor drive. |
| Timer Resources | Three 16-bit timers: two standard (T0/T1), one enhanced (T2) with capture/compare and reset (RT2) capability. |
| Memory | ROMless architecture; 256 × 8 bytes on-chip RAM; external program/data memory expandable to 64 kB. |
| Operating Temp | 0 °C to +70 °C; qualified for commercial and light-industrial ambient environments. |
Pinout & Package
Plastic Leaded Chip Carrier (PLCC) package, 68-pin, SOT188-2 footprint. Pin 1 is NC (no connect); pins 36–37 and 60–61 are dedicated ground/power terminals (VSS, AVSS, AVDD, VDD).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST | Reset input/output | Active-high reset input; outputs reset pulse on watchdog overflow - enables self-recovery without external circuitry. |
| XTAL1 / XTAL2 | Oscillator interface | Crystal input (inverting amp) and output; supports 3.5–24 MHz crystals or external clock injection at XTAL1. |
| P0.0–P0.7 | Multiplexed address/data bus | Open-drain I/O with internal pull-ups; serves as AD0–AD7 and A0–A7 during external memory access. |
| P5.0–P5.7 | Analog input port | Dedicated 8-channel analog input (ADC0–ADC7); high-impedance inputs referenced to AVREF±. |
| PWM0 / PWM1 | Digital PWM outputs | Push-pull capable outputs; each delivers 8-bit duty-cycle modulated signal with software-controlled period. |
| STADC | ADC start trigger | Edge-sensitive input that initiates conversion - allows hardware-synchronized sampling with external events. |
| EW | Watchdog enable | Input that enables T3 watchdog timer and disables power-down mode; must be actively driven, not floated. |
| AVREF+ / AVREF– | ADC reference terminals | High- and low-end voltage references; support external precision references or internal VDD-derived bias. |
Key Features
| Feature | Design Value |
|---|---|
| 80C51 instruction set compatibility | Enables reuse of existing 8051 firmware and toolchains without modification. |
| Four capture latches + three compare registers on T2 | Supports simultaneous edge detection, pulse-width measurement, and synchronized waveform generation. |
| I²C-bus master/slave interface | Reduces external component count for connecting EEPROMs, sensors, or DACs using standard two-wire protocol. |
| Idle and power-down low-power modes | Reduces active current to 12.5 mA (idle) or 50 µA (power-down) at 24 MHz - extends battery life in portable systems. |
| On-chip watchdog timer (T3) | Provides autonomous system recovery from software lockup without external supervisor IC. |
Applications
| Industrial Motor Control | Sensor Signal Acquisition |
|---|---|
Use Scenario: Closed-loop speed regulation of small DC motors in factory automation panels. IC Role / Device Role / Timing Role: MCU executing PID algorithm, generating PWM drive signals, and reading back tachometer or current-sense ADC data. Use Value: Integrated 10-bit ADC and dual PWM eliminate need for external converters and gate drivers - reduces BOM and PCB area. | Use Scenario: Multi-channel temperature and pressure monitoring in HVAC control units. IC Role / Device Role / Timing Role: Analog front-end controller acquiring eight sensor inputs via multiplexed ADC and transmitting results over I²C to host MCU. Use Value: Hardware STADC trigger and 50-cycle conversion time enable deterministic sampling intervals - critical for anti-aliasing filter design. |
| Legacy Embedded Instrumentation | Power Supply Monitoring |
Use Scenario: Retrofitting aging test equipment with digital readout and communication capability. IC Role / Device Role / Timing Role: Standalone controller managing display, keypad, UART diagnostics, and calibration storage via external EEPROM. Use Value: ROMless architecture allows field-programmable firmware updates using external EPROM or Flash - avoids mask-ROM NRE costs. | Use Scenario: Real-time monitoring of rail voltages and current in telecom power shelves. IC Role / Device Role / Timing Role: Supervisor MCU measuring multiple supply points via ADC, logging faults, and asserting alerts via PWM-driven LED or UART. Use Value: Dedicated AVSS/AVDD pins and ±2 LSB INL ensure stable, noise-immune analog measurements - essential for accurate margin testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT89C51ED2-UM | Enhanced 8051 core with 128 kB Flash, USB interface, and 10-bit ADC - no capture/compare timer T2 or I²C. | Requires external I²C bridge for sensor networks; lacks hardware capture for high-speed event timing. | Choose when firmware updateability and larger code space outweigh need for T2 and native I²C. |
| ST7FLITE09Y0M6 | 8-bit ST7 core with 32 kB Flash, 10-bit ADC, and 2× PWM - no UART/I²C combo; uses SPI instead of I²C. | Lacks dual serial interfaces; requires SPI-to-I²C bridge for legacy sensor compatibility. | Prefer for cost-sensitive, low-pin-count designs where I²C is optional and USB-free operation is required. |
Compared with AT89C51ED2-UM and ST7FLITE09Y0M6, the P80C552IBA/08,518 uniquely combines I²C + UART + capture/compare timer + dual PWM in a single 8051-compatible die - making it irreplaceable for legacy industrial systems requiring synchronized analog acquisition and multi-protocol communication without external glue logic.
Availability
P80C552IBA/08,518 is available at Aetrix Electronics and suitable for industrial motor control, sensor interface, legacy instrumentation, and power supply monitoring requiring stable component supply across long-lifecycle programs.
Supply support for P80C552IBA/08,518 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 delivering secure, scalable solutions for automotive, industrial, IoT, and communication infrastructure markets.
The P80C552IBA/08,518 belongs to NXP's legacy 80C51 family - designed specifically for cost-effective, mixed-signal embedded control where analog integration, deterministic timing, and 8051 ecosystem compatibility are mandatory.
FAQ
What is the maximum operating frequency supported by the P80C552IBA/08,518?
The P80C552IBA/08,518 supports a maximum oscillator frequency of 24 MHz, as confirmed in the Philips product data sheet section "ORDERING INFORMATION" and "DEVICE SPECIFICATIONS". At this frequency, 58% of instructions execute in 0.5 µs, and multiply/divide operations complete in 2 µs. This rating applies only to the IBA variant (0 °C to +70 °C, PLCC package), matching the P80C552IBA/08,518's ordering code.
Does the P80C552IBA/08,518 include on-chip program memory?
No, the P80C552IBA/08,518 is the ROMless version of the 8XC552 family. As stated in the "DESCRIPTION" section, "80C552-ROMless version of the 83C552". It relies on external program memory accessed via its multiplexed P0/P2 bus and requires EA pin tied low for external execution. This distinguishes it from the P83C552 variants which contain 8 kB mask-ROM.
How many analog input channels does the P80C552IBA/08,518 ADC support?
The P80C552IBA/08,518 integrates an 8-input, 10-bit successive-approximation ADC. Pins P5.0 through P5.7 serve exclusively as analog inputs ADC0–ADC7, as documented in the "PIN DESCRIPTION" table (page 7) and "BLOCK DIAGRAM" (page 5). No channel sharing with digital I/O is permitted - Port 5 is dedicated to analog acquisition.
What serial communication interfaces are integrated into the P80C552IBA/08,518?
The P80C552IBA/08,518 integrates two independent serial interfaces: a full-duplex UART compatible with the standard 80C51 (using P3.0/RxD and P3.1/TxD), and an I²C-bus port supporting both master and slave byte-oriented transfers (using P1.6/SCL and P1.7/SDA). Both operate from the same 24 MHz clock source and require no external transceivers.
Is the P80C552IBA/08,518 pin-compatible with other 8XC552 variants?
Yes - all 8XC552 variants (including P80C552, P83C552, and P87C552) share identical pinouts and package footprints per their respective PLCC (SOT188-2) or QFP (SOT318-2) packages. The P80C552IBA/08,518 uses the same 68-pin PLCC layout as shown in "PIN CONFIGURATIONS" (page 3), with identical signal assignments for all functional pins including ADC, PWM, and T2 resources.
P80C552IBA/08,518 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 68-LCC (J-Lead)
- Series:
- 80C
- Packaging:
- Tape & Reel (TR)
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
P80C552IBA/08,518 FAQ
1.How can I place an order for P80C552IBA/08,518 through Aetrix?
Please submit a Request for Quotation (RFQ) for P80C552IBA/08,518 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 P80C552IBA/08,518 reliable?
The price and inventory of P80C552IBA/08,518 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P80C552IBA/08,518 is usually 5 days.
3.What payment methods are accepted for P80C552IBA/08,518?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P80C552IBA/08,518 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P80C552IBA/08,518?
P80C552IBA/08,518 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P80C552IBA/08,518 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 P80C552IBA/08,518?
For technical support, including P80C552IBA/08,518 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P80C552IBA/08,518 requirements.
6.How does Aetrix verify that P80C552IBA/08,518 is sourced from the original manufacturer or authorized distributors?
All P80C552IBA/08,518 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 P80C552IBA/08,518 meets industry standards.
7.What is the process for return or replacement of P80C552IBA/08,518?
All P80C552IBA/08,518 units undergo pre-shipment inspection (PSI). If there is an issue with P80C552IBA/08,518, 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 P80C552IBA/08,518 part is unused and in its original packaging.
Return procedure for P80C552IBA/08,518:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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