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Microchip Technology AC244048
- Part No.:
- AC244048
- Manufacturer:
- Microchip Technology
- Category:
- Programmers, Emulators, and Debuggers
- Package:
- Datasheet:
-
AC244048.pdf
- Description:
- KIT PIC16LF1907-ICE EXTENSION
- Quantity:
- Payment:
- Shipping:
Inventory:2,621
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Product details
Overview
AC244048 from Microchip Technology is a 40-pin, 8-bit Flash microcontroller in the PIC16LF190x family, featuring an enhanced mid-range RISC CPU with 49 instructions, 4 KB (4096-word) self-write/read Flash program memory, 256 bytes of SRAM, and integrated LCD controller supporting up to 116 segments. It operates from 1.8V–3.6V and delivers 30 nA sleep current, making it suitable for battery-powered portable instrumentation with segmented LCD displays.
For engineers reviewing the AC244048 datasheet, AC244048 pinout, AC244048 application, or AC244048 equivalent, key selection criteria include its XLP ultra-low-power operation, 14-channel 10-bit ADC with sleep conversion capability, EUSART supporting RS-232/RS-485/LIN, and integrated fixed voltage reference (1.024 V / 2.048 V) for precision analog sensing.
Technical Context
The AC244048 implements an enhanced mid-range 8-bit CPU core with automatic interrupt context saving, a 16-level hardware stack with overflow/underflow detection, and dual 16-bit File Select Registers (FSRs) enabling unified access to both program and data memory. Its instruction cycle time is 200 ns at 20 MHz.
It integrates a flexible oscillator system including a factory-calibrated 16 MHz internal RC oscillator (±3% typical), a 31 kHz low-power oscillator, and support for external clock inputs up to 20 MHz - enabling rapid two-speed startup and RTC implementation via LPT1OSC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Enhanced mid-range 8-bit RISC CPU with 49 instructions and automatic context-saving on interrupt |
| Flash Memory | 4,096 words (14-bit) with self-read/write capability and 100K-cycle high-endurance flash data memory (128 B) |
| Operating Voltage | 1.8V–3.6V - enables direct use with single-cell Li-ion or two-cell alkaline batteries |
| Sleep Current | 30 nA @ 1.8V - supports multi-year battery life in always-on sensor nodes |
| ADC Resolution | 10-bit SAR ADC with up to 14 input channels and conversion during Sleep mode |
| LCD Driver | Integrated controller supporting ≥29 segment pins and up to 116 total segments with programmable contrast and internal voltage reference |
| EUSART Interface | Enhanced UART with RS-232/RS-485/LIN compatibility, auto-baud detect, and wake-on-start capability |
Pinout & Package
AC244048 is available in 40-pin PDIP and 40-pin UQFN (5×5 mm) packages. Both variants share identical pin functionality and I/O mapping per Microchip DS40001569D.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VPP/MCLR/RE3 | Master Clear / Programming Voltage | Active-low reset input with internal pull-up; HV (13V) required for programming |
| RA0–RA7 | Port A I/O + Analog Inputs + LCD Segments | 8-bit bidirectional port with AN0–AN4, SEG1–SEG12, CLKIN/CLKOUT, T0CKI |
| RB0–RB7 | Port B I/O + Interrupt-on-Change + LCD Segments | 8-bit bidirectional port with AN8–AN13, INT, IOC, SEG0–SEG14, ICSPDAT/ICSPCLK |
| RC0–RC7 | Port C I/O + EUSART + Timer1 + LCD Segments | 8-bit bidirectional port with T1CKI/T1OSO/T1OSI/T1G, TX/CK/RX/DT, SEG3/SEG6/SEG8–SEG11 |
| RD0–RD7 | Port D I/O + LCD Segments + COM Lines | 8-bit bidirectional port with COM0–COM3, SEG16–SEG28 (40/44-pin only) |
| RE0–RE2 | Port E I/O + ADC Channels | 3-bit port with AN5–AN7 and SEG21–SEG23 (40/44-pin only) |
| VDD / VSS | Power Supply / Ground | Dual VDD pins (pins 11 & 32) and dual VSS pins (pins 12 & 31) for noise reduction in mixed-signal operation |
Key Features
| Feature | Design Value |
|---|---|
| XLP Ultra-Low-Power Operation | 30 nA sleep current @ 1.8V enables >10-year battery life in coin-cell-powered devices |
| Integrated LCD Controller | Supports up to 116 segments with programmable bias, internal VLCD generation, and contrast control - eliminates external LCD bias IC |
| Fixed Voltage Reference (FVR) | On-chip 1.024 V and 2.048 V references usable by ADC and comparator - improves measurement repeatability without external components |
| Self-Programming Capability | Allows firmware updates in-system via ICSP™ using only two pins - reduces production test complexity and field upgrade cost |
| Enhanced EUSART | Hardware auto-baud detection and wake-on-start enable robust serial communication in intermittent power systems |
Applications
| Portable Medical Instrumentation | Smart Utility Meter Displays |
|---|---|
|
Use Scenario: Handheld blood glucose meters with segmented LCD and low-power sensor interface. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, LCD refresh, button input, and battery monitoring. Use Value: 30 nA sleep current extends CR2032 battery life beyond 3 years; integrated FVR ensures consistent glucose reading accuracy across temperature. |
Use Scenario: Gas/water meter with local LCD readout and periodic wireless transmission. IC Role / Device Role / Timing Role: Primary display controller interfacing to metrology IC via SPI and driving 72-segment LCD. Use Value: Integrated LCD driver eliminates external bias generator; EUSART supports HART protocol communication for diagnostics. |
| Industrial Panel Meters | Low-Power Environmental Sensors |
|
Use Scenario: DIN-rail mounted panel meter displaying voltage/current/temperature with local keypad. IC Role / Device Role / Timing Role: Real-time display processor with 14-channel ADC, timer-based polling, and interrupt-driven UI response. Use Value: 14-channel ADC with sleep conversion allows simultaneous multi-sensor acquisition without waking CPU - reducing average system power. |
Use Scenario: Battery-powered soil moisture/temperature node with LCD status display and LoRaWAN backhaul. IC Role / Device Role / Timing Role: Sensor hub aggregating analog inputs, managing LCD state, and triggering RF module wake-up. Use Value: Two-speed oscillator startup enables fast wake-from-sleep (<1 µs) for responsive sensor readings while maintaining 300 nA WDT current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PIC16LF1907-I/PT | 8 KB Flash, 512 B RAM, same 40-pin package and peripheral set; adds RE0–RE2 for extra ADC channels | Required when >14 ADC inputs or >116 LCD segments needed; higher code density for complex UI logic | Select PIC16LF1907 if future firmware expansion or additional analog sensing is anticipated - pin-compatible with no PCB changes |
| STM8L052C6T6 | 32 MHz max, 32 KB Flash, 2 KB RAM, 12-bit ADC; lower sleep current (350 nA) but no integrated LCD driver | Suitable for non-LCD applications requiring higher processing throughput or larger firmware footprint | Choose STM8L052C6T6 only when LCD functionality is offloaded externally - requires redesign of display interface and bias circuitry |
Compared with PIC16LF1907-I/PT, AC244048 offers identical peripherals and pinout at lower memory cost; versus STM8L052C6T6, AC244048 provides integrated LCD control and lower active-mode power, but less Flash and RAM - making it optimal for cost-sensitive, LCD-centric embedded designs.
Availability
AC244048 is available at Aetrix Electronics and suitable for portable medical instrumentation, smart utility meter displays, and industrial panel meters requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for AC244048 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 microcontrollers, analog, FPGA, and connectivity solutions, serving automotive, industrial, consumer, and communications markets since 1989.
The PIC16LF190x product line was designed specifically for ultra-low-power, LCD-integrated embedded applications - combining XLP technology, integrated analog peripherals, and compact packaging for space-constrained portable devices.
FAQ
What is the maximum operating frequency of the AC244048?
The AC244048 supports DC–20 MHz clock input at 3.6V and DC–16 MHz at 1.8V, delivering a 200 ns instruction cycle time. Its internal 16 MHz oscillator is factory-trimmed to ±3% typical accuracy and software-selectable down to 31.25 kHz - enabling dynamic clock scaling for power optimization in AC244048-based designs.
Does the AC244048 support in-circuit debugging?
Yes, the AC244048 supports full in-circuit debug (ICD) via two dedicated pins (RB6/ICDCLK and RB7/ICDDAT), compatible with Microchip's MPLAB® ICD 4 and PICkit™ 4 tools. Debug functionality is enabled without external components and coexists with normal I/O operation on those pins when not actively debugging AC244048 firmware.
How many LCD segments can the AC244048 drive in a 40-pin configuration?
In its 40-pin package variant, the AC244048 drives up to 116 total LCD segments using 29 segment pins (SEG0–SEG28) and 4 common lines (COM0–COM3). This is confirmed in Table 1-1 and Figure 3 of DS40001569D, and applies directly to AC244048 as a member of the PIC16LF1904/7 subgroup.
Is the AC244048 pin-compatible with other PIC16LF190x devices?
AC244048 is pin-compatible with PIC16LF1907 in 40-pin packages (PDIP/UQFN), sharing identical pin functions and electrical characteristics. It is not pin-compatible with 28-pin variants (e.g., PIC16LF1906) due to missing RD/RE ports and reduced segment count - migration requires PCB revision unless constrained to shared 28-pin subset.
What is the purpose of the High-Endurance Flash (HEF) memory in the AC244048?
The AC244048 includes 128 bytes of High-Endurance Flash memory rated for 100,000 erase/write cycles, intended for storing calibration data, device configuration, or usage logs. Unlike main Flash, HEF retains data integrity across frequent updates - critical for field-updatable parameters in AC244048-based instrumentation without wearing out program memory.
AC244048 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Debugger
- For Use With/Related Products:
- PIC16LF1907
- Contents:
- Board(s)
AC244048 FAQ
1.How can I place an order for AC244048 through Aetrix?
Please submit a Request for Quotation (RFQ) for AC244048 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 AC244048 reliable?
The price and inventory of AC244048 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AC244048 is usually 5 days.
3.What payment methods are accepted for AC244048?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AC244048 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AC244048?
AC244048 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AC244048 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 AC244048?
For technical support, including AC244048 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AC244048 requirements.
6.How does Aetrix verify that AC244048 is sourced from the original manufacturer or authorized distributors?
All AC244048 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 AC244048 meets industry standards.
7.What is the process for return or replacement of AC244048?
All AC244048 units undergo pre-shipment inspection (PSI). If there is an issue with AC244048, 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 AC244048 part is unused and in its original packaging.
Return procedure for AC244048:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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2548
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410-308-B
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