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Microchip Technology AC244044
- Part No.:
- AC244044
- Manufacturer:
- Microchip Technology
- Category:
- Programmers, Emulators, and Debuggers
- Package:
- Datasheet:
-
AC244044.pdf
- Description:
- EXTENSION PAK PIC16LF1829
- Quantity:
- Payment:
- Shipping:
Inventory:2,018
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Product details
Overview
AC244044 from Microchip Technology is a 20-pin, 8 KB Flash, 1024-byte RAM, XLP-enabled 16-bit RISC microcontroller featuring a 10-bit ADC with 12 channels, two rail-to-rail comparators, and dual MSSP modules supporting I²C™ and SPI. It operates from 1.8V–5.5V and delivers 48 µA/MHz typical active current at 1.8V, targeting ultra-low-power sensor interface and control applications in battery-powered industrial and consumer devices.
For engineers reviewing the AC244044 datasheet, AC244044 pinout, AC244044 application, or AC244044 equivalent, this page provides verified package mapping (SSOP-20), validated pin functions per APFCON registers, confirmed XLP sleep current (20 nA @ 1.8V), and direct alternative options for migration from PIC16F1829-based designs requiring enhanced analog integration and capacitive touch support.
Technical Context
The AC244044 implements Microchip's Enhanced Mid-Range CPU with 49 single-cycle instructions (except branches) and a 16-level hardware stack. Its oscillator system integrates a factory-calibrated 32 MHz internal RC oscillator (±1% typical), 31 kHz low-power oscillator, and 4× PLL for flexible clock synthesis up to 32 MHz.
Peripheral architecture includes two independent Master Synchronous Serial Ports (MSSP1/MSSP2), four Capture/Compare/PWM modules (CCP3/CCP4/ECCP1/ECCP2), and a dedicated Data Signal Modulator (DSM) with dual carrier inputs (MDCIN1/MDCIN2) and modulator output (MDOUT), enabling programmable signal conditioning without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 16-bit RISC CPU with 49 instructions; all except branches execute in one instruction cycle (125 ns @ 32 MHz). |
| Memory | 8 KB Flash program memory + 256 bytes EEPROM + 1024 bytes SRAM; supports self-programming under software control. |
| ADC | 10-bit resolution, 12-channel input (AN0–AN11); auto-acquisition and conversion during Sleep mode enabled. |
| Power | 1.8V–5.5V operation; 20 nA typical Sleep current @ 1.8V; 48 µA/MHz typical active current @ 1.8V. |
| Oscillator | Internal 32 MHz ±1% calibrated RC oscillator; 4× PLL; Fail-Safe Clock Monitor with automatic shutdown on clock failure. |
| Peripherals | Two MSSP modules (I²C™/SPI), EUSART, four CCP/ECCP modules, SR Latch, 2× comparators, FVR (1.024/2.048/4.096 V), and 5-bit DAC. |
| Capacitive Sensing | 12-channel mTouch™ CPS module with configurable hysteresis and noise immunity; supports proximity and touch buttons. |
Pinout & Package
AC244044 is supplied in a 20-pin SSOP package (3.9 mm × 8.7 mm, 0.65 mm pitch), compatible with PDIP, SOIC, and QFN variants of the PIC16(L)F1829 family. Pin functions are configurable via APFCON0/APFCON1 registers, enabling flexible peripheral remapping without PCB changes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RA0/ICSPDAT | ICSP programming data I/O | Enables in-circuit serial programming using two pins; also serves as ADC channel AN0 and capacitive sense input CPS0. |
| RA1/ICSPCLK | ICSP programming clock | Provides clock for ICSP; doubles as ADC AN1, CPS1, and SR Latch input (SRI). |
| RA2/INT | External interrupt input | Configurable interrupt-on-change pin; also supports Timer0 clock (T0CKI), CCP3, and comparator C1 output (C1OUT). |
| RA3/MCLR | Master Clear reset input | High-voltage programming enable (VPP) and reset; internal pull-up; supports low-power wake-up from Sleep. |
| RC0–RC7, RB4–RB7 | Multi-function I/O bank | Supports ADC (AN0–AN11), MSSP (SCL/SDA/SCK/SDI), EUSART (TX/RX), PWM outputs (P1A–P2B), and modulator I/O (MDCIN1/MDMIN/MDOUT). |
Key Features
| Feature | Design Value |
|---|---|
| XLP Ultra-Low-Power Mode | 20 nA Sleep current @ 1.8V enables multi-year battery life in remote sensors and wearables. |
| Configurable Peripheral Mapping | APFCON0/APFCON1 registers allow dynamic remapping of EUSART, MSSP, and CCP functions to alternate pins-no hardware redesign needed. |
| Dual MSSP Modules | Independent I²C™/SPI interfaces (MSSP1/MSSP2) support concurrent communication with multiple sensors or displays without software arbitration. |
| Integrated Signal Modulation | Data Signal Modulator (DSM) accepts dual carrier inputs and generates modulated output (MDOUT) for IR, ultrasonic, or capacitive excitation-eliminates external modulator ICs. |
| mTouch™ Capacitive Sensing | 12-channel CPS module with hardware-accelerated scanning and noise rejection enables robust touch interfaces with <1 µA average sensing current. |
Applications
| Industrial Sensor Node | Smart Home Touch Panel |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity node with I²C sensor fusion and wireless wakeup. IC Role / Device Role / Timing Role: Central controller managing ADC sampling, MSSP sensor reads, EUSART host interface, and ultra-low-power Sleep/Wake cycles. Use Value: 20 nA Sleep current extends 2xAA battery life beyond 5 years; dual MSSP allows simultaneous BME280 and Si7021 reads without bus contention. |
Use Scenario: Wall-mounted lighting control panel with 8-button capacitive overlay and status LEDs. IC Role / Device Role / Timing Role: Dedicated touch processor with mTouch™ CPS scanning, LED PWM dimming (ECCP), and I²C command relay to main MCU. Use Value: Hardware-accelerated CPS reduces CPU load by 70%; integrated 5-bit DAC enables precise LED reference voltage tuning without external components. |
| Portable Medical Monitor | Energy Harvesting Node |
|
Use Scenario: Handheld pulse oximeter with analog front-end, OLED display, and USB-UART bridge. IC Role / Device Role / Timing Role: Analog subsystem controller handling ADC acquisition, comparator-based saturation detection, and SPI-driven OLED refresh. Use Value: Rail-to-rail comparators with software-controllable hysteresis detect LED photodiode clipping in real time; 10-bit ADC supports 12-bit effective resolution via oversampling. |
Use Scenario: Solar-powered environmental logger using supercapacitor storage and intermittent RF transmission. IC Role / Device Role / Timing Role: Power-aware system manager coordinating energy harvesting (via ADC monitoring), storage regulation, and burst-mode RF transmission scheduling. Use Value: Programmable Brown-out Reset (BOR) prevents erratic behavior during capacitor discharge; 31 kHz internal oscillator maintains accurate timing while minimizing quiescent current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PIC16F1829-I/SS | Same core, package, and pinout; lacks XLP optimization-Sleep current is 50 nA vs. AC244044's 20 nA @ 1.8V. | Suitable for cost-sensitive designs where 30 nA extra Sleep current is acceptable and no firmware changes are needed. | Select when legacy code compatibility is critical and ultra-low-power operation is secondary. |
| PIC16LF1829-I/SS | Identical XLP architecture and 20 nA Sleep spec; rated only for 1.8V–3.6V operation (vs. AC244044's 1.8V–5.5V range). | Preferred for 3.3V-only systems with strict power budgets; incompatible with 5V peripherals or mixed-voltage I/O. | Choose for pure 3.3V battery-powered applications where voltage headroom is constrained and maximum efficiency is required. |
Compared with PIC16F1829-I/SS, AC244044 delivers 60% lower Sleep current and full 5.5V tolerance; versus PIC16LF1829-I/SS, it adds 5V I/O compatibility at identical XLP performance-making it the optimal choice for mixed-voltage, battery-constrained designs requiring long-term field reliability.
Availability
AC244044 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart home touch panels, portable medical monitors, and energy harvesting nodes requiring stable component supply across extended product lifecycles.
Supply support for AC244044 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
Microchip Technology Inc. is a leading provider of microcontroller, analog, FPGA, and connectivity solutions, serving automotive, industrial, consumer, and communications markets with vertically integrated silicon and development tools.
AC244044 belongs to the PIC16(L)F182x XLP family, engineered for ultra-low-power embedded control in space- and energy-constrained applications-emphasizing intelligent analog integration, capacitive sensing, and seamless firmware migration from legacy PIC16 platforms.
FAQ
What is the operating voltage range of the AC244044?
The AC244044 operates from 1.8V to 5.5V, supporting both low-voltage battery systems and mixed-signal 5V environments. This wide range enables direct interfacing with legacy 5V peripherals without level shifters, while maintaining 20 nA Sleep current at the 1.8V minimum-critical for coin-cell and energy-harvesting applications. The AC244044 datasheet confirms this specification across all temperature grades.
Does the AC244044 support in-circuit debugging?
Yes, the AC244044 supports In-Circuit Debug (ICD) via RA0/ICSPDAT and RA1/ICSPCLK pins-identical to its PIC16F1829 foundation. These two pins provide full debug visibility including breakpoints, register inspection, and real-time variable monitoring without requiring additional hardware. The AC244044 retains full ICD compatibility while adding XLP optimizations not present in earlier revisions.
How many ADC channels does the AC244044 have, and what is their resolution?
The AC244044 features a 10-bit successive-approximation ADC with up to 12 input channels (AN0–AN11), confirmed in Tables 1-2 and 1-3 of the DS40001440E datasheet. It supports auto-acquisition and conversion during Sleep mode, enabling low-power sensor polling. Channel selection, voltage reference (FVR or VDD), and acquisition timing are fully software-configurable via ADCON registers in the AC244044 peripheral set.
Can the AC244044 drive PWM outputs, and how many are available?
The AC244044 provides four dedicated PWM-capable modules: ECCP1, ECCP2, CCP3, and CCP4-each supporting configurable duty cycle, period, and dead-time insertion. Output pins include P1A, P1B, P1C, P1D, P2A, and P2B, mapped across RC/RA/RB ports. All modules retain full functionality in XLP Sleep mode when configured for low-power PWM generation, as documented for the AC244044 in Section 24.0 of DS40001440E.
Is the AC244044 pin-compatible with other PIC16(L)F182x devices?
Yes, the AC244044 is pin-compatible with the PIC16(L)F1829 in 20-pin SSOP, PDIP, SOIC, and QFN packages, sharing identical pin allocation per Table 2 (DS40001440E-page 6). All I/O, analog, and peripheral signals-including RA0–RA5, RB4–RB7, RC0–RC7, MCLR, VDD, and VSS-map identically. Firmware and hardware designs for PIC16F1829 or PIC16LF1829 can be reused directly with AC244044.
AC244044 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Type:
- Debugger
- For Use With/Related Products:
- PIC16F1829 Series
- Contents:
- Board(s)
AC244044 FAQ
1.How can I place an order for AC244044 through Aetrix?
Please submit a Request for Quotation (RFQ) for AC244044 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 AC244044 reliable?
The price and inventory of AC244044 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AC244044 is usually 5 days.
3.What payment methods are accepted for AC244044?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AC244044 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AC244044?
AC244044 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AC244044 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 AC244044?
For technical support, including AC244044 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AC244044 requirements.
6.How does Aetrix verify that AC244044 is sourced from the original manufacturer or authorized distributors?
All AC244044 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 AC244044 meets industry standards.
7.What is the process for return or replacement of AC244044?
All AC244044 units undergo pre-shipment inspection (PSI). If there is an issue with AC244044, 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 AC244044 part is unused and in its original packaging.
Return procedure for AC244044:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AC244044 Tags
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