ATMEGA169V-1MC - AVR 8-bit MCU, 16KB Flash, LCD Driver | Microchip
MPN: ATMEGA169V-1MC β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.2 | $4.20 |
| 10 | $3.78 | $37.80 |
| 100 | $3.36 | $336.00 |
| 500 | $3.02 | $1,510.00 |
| 1,000 | $2.68 | $2,680.00 |
ATMEGA169V-1MC Overview
An 8-bit AVR microcontroller is a single-chip computer built around the AVR enhanced RISC architecture, in which most of its 130 powerful instructions execute in a single clock cycle. Within the power-management hierarchy, it spans the microcontroller -> embedded processor -> integrated circuit taxonomy and competes in the general-purpose MCU class alongside the PIC, MSP430, and STM8 families.
Key differentiating features include the integrated LCD driver capable of driving up to 4 backplanes x 25 segments - eliminating an external LCD controller in battery-powered displays - plus self-programming Flash for field firmware updates, an on-chip JTAG debug interface, and a 10-bit ADC with up to 8 multiplexed single-ended input channels.
Architecturally, the ATmega169 combines 32 general-purpose working registers, hardware multiply, two 8-bit and one 16-bit timer with PWM capability, a USART, an SPI interface, and a two-wire (I2C-compatible) interface. Achieving up to 16 MIPS throughput at 16MHz on faster speed-grade variants, the V-grade ATMEGA169V-1MC trades speed for an ultra-wide 1.8V supply window, suiting single-cell or coin-cell powered designs.
Typical applications include battery-operated metering displays, handheld instruments with segment LCDs, industrial control panels, and consumer appliance user interfaces where low-voltage operation and integrated LCD drive reduce system cost.
Design consideration: the V-grade 1MHz limit applies across the full 1.8V supply range; if higher throughput is needed, verify the speed/voltage/frequency derating curve in the manufacturer datasheet before selection.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet, offering information gain beyond standard catalog listings.
Drop-in alternatives for ATMEGA169V-1MC β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ATMEGA169V-1MC (same form factor and footprint) β differing in Package, Program Memory Size, RAM Size, Speed.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ATMEGA169PV-8MUR
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
ATMEGA169PA-MU
β Drop-In β οΈ εζ°εΎ ιͺθ―β In Stock
$4.1 / Unit
View Datasheet βATMEGA169V-8MC
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
ATMEGA169-16MC
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
ATMEGA169V-1MC Maximum Ratings & Electrical Characteristics
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 1 MHz |
| Program Memory Size | 16 KB (8K x 16) Flash |
| RAM Size | 1 KB SRAM |
| EEPROM Size | 512 B |
| Supply Voltage Range | 1.8 V to 5.5 V |
| ADC Channels | 8 x 10-bit |
| LCD Driver | 4 backplanes x 25 segments |
| JTAG Interface | Yes (on-chip debug) |
| Peripherals | LCD, PWM, WDT |
| Connectivity | USART, SPI, TWI (I2C-compatible) |
| Package | 64-QFN (9x9 mm) Exposed Pad (VFQFN) |
| Mounting Type | Surface Mount |
| Oscillator Type | Internal |
| Programming Method | Self-programming Flash (ISP), JTAG |
| RoHS Status | Compliant |
ATMEGA169V-1MC 64-qfn (9x9 mm) exposed pad (vfqfn) Pin Configuration Guide
Pin configuration for ATMEGA169V-1MC (64-qfn (9x9 mm) exposed pad (vfqfn) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for ATMEGA169V-1MC.
Refer to the datasheet for full pin configuration.
Typical Applications
ATMEGA169V-1MC is suitable for 6 applications: Battery-Powered LCD Metering Instruments, Handheld Industrial Test Equipment, Consumer Appliance User Interfaces, Industrial Automation Control Panels, Automotive Interior Display Modules, IoT Sensor Nodes and Smart Home Devices.
Battery-Powered LCD Metering Instruments
Utility meters, energy gauges, and handheld measurement instruments benefit directly from the ATMEGA169V-1MC's integrated 4x25 segment LCD driver, which eliminates a dedicated LCD controller IC and reduces both BOM cost and board area. The 1.8V to 5.5V supply window allows direct operation from a 3V lithium coin cell or two alkaline cells without a boost converter. With the V-grade 1MHz clock, active current is minimized, and the AVR sleep modes permit microamp-level standby. The 10-bit ADC with 8 channels supports voltage, current, and temperature sensing inputs for metering front-ends, while self-programming Flash enables field firmware calibration updates over SPI.
Recommended
Handheld Industrial Test Equipment
Portable diagnostic and test tools require a segment display, multiple sensor inputs, and long battery run time - a combination the ATMEGA169V-1MC addresses in a single 64-QFN device. The 16KB self-programming Flash holds a full measurement application plus calibration tables, and the 1KB SRAM handles buffering of multi-channel 10-bit ADC samples. JTAG on-chip debug allows engineers to set hardware breakpoints in the field-prototype phase without desoldering the QFN package. Running from a single lithium cell at 3V within the 1.8-5.5V range, the 1MHz V-grade clock keeps power draw low, while the USART and TWI interfaces connect to host systems or peripheral sensors.
Recommended
Consumer Appliance User Interfaces
Ovens, thermostats, and small appliance control panels commonly use segment LCDs, a few buttons, and simple sensing - precisely the peripheral set of the ATMEGA169V-1MC. The LCD driver's 4x25 segment capacity covers temperature, time, and mode icons without external drivers, and port pins double as segment outputs to maximize I/O efficiency on the 64-QFN package. The internal oscillator removes the need for an external crystal in non-precision timing applications, further cutting cost. Operation across 1.8-5.5V accommodates both battery and rectified-mains-derived supplies, and the watchdog timer provides the robustness expected in household environments.
Recommended
Industrial Automation Control Panels
Machine status panels and small PLC front-ends leverage the ATMEGA169V-1MC's combination of segment LCD display, USART for Modbus-style serial links, SPI/TWI for I/O expansion, and multiple PWM-capable timers. The 8-channel 10-bit ADC digitizes potentiometer setpoints and analog sensor feedback, while JTAG supports boundary-scan testing of the populated PCB in production. The 1.8-5.5V range tolerates wide industrial supply variation, and self-programming Flash permits parameter or firmware updates during maintenance windows. The 64-QFN exposed-pad package provides good thermal and ground characteristics for electrically noisy panel environments.
Recommended
Automotive Interior Display Modules
Simple in-cabin information displays - seat heaters, tire-pressure indicators, and climate setpoints - historically used ATmega169-class parts because the LCD driver, ADC, and low-voltage operation match the application profile. The 1.8-5.5V supply tolerance rides through cold-crank and load-dump-adjacent conditions when paired with a regulator, and the 10-bit ADC reads NTC temperature sensors directly. Note that the standard ATMEGA169V-1MC is not AEC-Q100 qualified, so automotive use requires the appropriate qualified variant or explicit OEM approval. The JTAG interface eases EOL programming and diagnostics during manufacturing.
Recommended
IoT Sensor Nodes and Smart Home Devices
Wall-mounted smart home controllers and sensor nodes with basic LCD feedback fit the ATMEGA169V-1MC well: the segment driver renders status and setpoints, the TWI interface connects to environmental sensors, and the USART links to a wireless module such as a sub-GHz or Zigbee radio. The 1.8V floor permits direct operation from a single NiMH cell or a 1.8V rail of a boost converter, and AVR sleep modes with the 1MHz V-grade clock keep average current within coin-cell budgets. The exposed-pad QFN aids thermal dissipation in sealed enclosures, and self-programming Flash supports over-the-adjacent-serial firmware updates during commissioning.
Recommended
Recommended Products Summary
Engineering reference data for ATMEGA169V-1MC β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATMEGA169PV-8MUR | ATMEGA169PA-MU | ATMEGA169V-8MC | ATMEGA169-16MC | ATMEGA169P-15AT |
|---|---|---|---|---|---|---|
| Package | 64-QFN (9x9 mm) Exposed Pad | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same | 64-QFN (9x9 mm) - same | 64-TQFP - different |
| Brand | Microchip Technology (Atmel) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Max Clock Frequency | 1 MHz | 8 MHz | 20 MHz | 8 MHz | 16 MHz | 15 MHz |
| Flash Memory | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| Supply Voltage Range | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 4.5 V to 5.5 V | 1.8 V to 5.5 V |
| LCD Driver | 4x25 segments | 4x25 segments | 4x25 segments | 4x25 segments | 4x25 segments | 4x25 segments |
| ADC | 8ch 10-bit | 8ch 10-bit | 8ch 10-bit | 8ch 10-bit | 8ch 10-bit | 8ch 10-bit |
| Low-Power Features | Standard AVR sleep modes | picoPower (lower sleep current) | picoPower (lower sleep current) | Standard AVR sleep modes | Standard AVR sleep modes | picoPower (lower sleep current) |
| JTAG On-Chip Debug | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Integrated 4x25 segment LCD driver (vs ATMEGA168V-10AUR)
- Ultra-wide 1.8V to 5.5V supply range (vs ATMEGA169-16MC)
- Same-footprint picoPower upgrade path (vs ATMEGA169PA-MU)
- JTAG on-chip debug and boundary scan (vs ATMEGA168V-10AUR)
Design Notes
The V-grade suffix limits the ATMEGA169V-1MC to 1MHz maximum clock across the entire 1.8V to 5.5V supply range. If the application needs higher throughput at higher supply voltages, select the ATMEGA169V-8MC or ATMEGA169-16MC in the same 64-QFN footprint instead - they are pin-compatible. Do not exceed the speed/voltage derating curve in the AVR ATmega169 datasheet; over-clocking at 1.8V risks brown-out resets during battery discharge transients.
The 64-QFN exposed pad (VFQFN) requires a soldered thermal/ground pad on the PCB for reliable grounding and heat dissipation. Define a via array (typically 3x3 or 4x4, 0.3mm vias) under the pad tied to the ground plane, and ensure stencil apertures cover about 50-70% of the pad area to avoid solder voids. Pin 1 orientation follows the dot marker; the QFN footprint differs from TQFP-64, so TQFP-family parts cannot be placed on this land pattern.
LCD segment pins shared with general-purpose I/O should be routed away from the ADC inputs and crystal traces to prevent ghosting and crosstalk on the segment glass. Keep the 32.768kHz TOSC crystal (if used for the RTC/LCD clock) traces as short as possible and guard with a ground ring. Decouple VCC with 100nF ceramic capacitors at each supply pin plus 10uF bulk, placed within 2mm of the package per AVR hardware design guidance.
JTAG interface pins are enabled by default and overlap port C I/O; if the application needs those pins as GPIO, clear the JTAGEN fuse (or disable JTAG in software within the datasheet-specified timeout) early in initialization. Also confirm the operating temperature grade before industrial deployments - the temperature range for this exact suffix should be verified against the ordering-information table in the official datasheet rather than assumed.
Compliance Information
RoHS status per Microchip product data for the ATmega169 series; this standard grade is not AEC-Q100 qualified. REACH and halogen-free status must be confirmed on the official Microchip product compliance page.
