ATMEGA169P-16MU - AVR 8-bit MCU 16KB 16MHz 64-QFN | Microchip
Teilenummer: ATMEGA169P-16MU ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $4.2 | $4,20 |
| 10 | $3.78 | $37,80 |
| 100 | $3.3 | $330,00 |
| 500 | $2.95 | $1.475,00 |
| 1.000 | $2.64 | $2.640,00 |
ATMEGA169P-16MU Übersicht
An 8-bit microcontroller is a single-chip computer integrating a CPU, program memory, data memory, and peripherals on one die. Within the power-management and embedded-systems hierarchy, the ATmega family sits in the general-purpose MCU class, competing with the Microchip PIC and ST STM8 families. The AVR enhanced RISC architecture executes most of its 133 instructions in a single clock cycle, delivering throughput approaching 1 MIPS per MHz, which lets designers trade clock speed directly against power consumption.
Key features include 16 MIPS throughput at 16 MHz, an 8-channel 10-bit ADC, a JTAG interface for on-chip debugging and boundary scan, and a segment LCD driver that distinguishes the ATmega169 family from the pin-compatible ATmega165 (which lacks the LCD controller). The P-suffix die adds improved data-retention and reliability characteristics over the original ATmega169.
Technically, the device uses a Harvard architecture with separate program and data buses, self-programmable Flash for field updates, and in-system programmability (ISP) via SPI. Two 8-bit timers, one 16-bit timer, USI, and the on-chip debug reduce external component count in cost-sensitive designs.
Typical applications include battery-powered devices with LCD displays such as utility meters, hand-held instrumentation, and consumer appliances, where the integrated LCD driver and 2.7 V low-voltage operation extend battery life.
Design consideration: the 64-QFN package requires the exposed pad soldered to a grounded PCB thermal pad for reliable ground connection and heat dissipation.
This page synthesizes distributor listing data, drop-in alternatives, and design guidance not found in the manufacturer datasheet alone. Pricing shown as of 2026-09-16.
Drop-in-Alternativen für ATMEGA169P-16MU – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit ATMEGA169P-16MU (gleiche Bauform und Footprint) – abweichend in Package, Instructions, Core Architecture, Throughput, ADC.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
ATMEGA169PA-16MU
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
ATMEGA165P-16MU
✅ Drop-In ⚠️ Spezifikationen ungeprüft✓ Auf Lager
$2.19 / Stück
Datenblatt ansehen →ATMEGA325P-16MU
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
ATMEGA329P-16MU
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
ATMEGA169PV-8MU
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
ATMEGA169P-16MU Grenzwerte & elektrische Eigenschaften
| Core Architecture | AVR enhanced RISC, 8-bit |
| Flash Program Memory | 16 KB (8K x 16), self-programmable |
| SRAM | 1 KB |
| EEPROM | 512 B |
| Maximale Taktfrequenz | 16 MHz |
| Throughput | 16 MIPS at 16 MHz (1 MIPS per MHz) |
| Supply Voltage Range | 2.7 V to 5.5 V |
| ADC | 8-channel, 10-bit |
| LCD Controller | Yes, segment LCD driver |
| Debug Interface | JTAG (on-chip debug and boundary scan) |
| I/O Ports | 53 I/O lines |
| Instructions | 133 instructions, most single-cycle |
| Gehäuse | 64-QFN (MLF), 9x9 mm |
| Montageart | Surface Mount |
| Programming Interface | ISP via SPI; self-programming Flash |
ATMEGA169P-16MU 64-qfn (mlf), 9x9 mm Pinbelegungsleitfaden
Pinbelegung für ATMEGA169P-16MU (64-qfn (mlf), 9x9 mm-Gehäuse). Dieser digitale IC umfasst GPIO, Kommunikationsschnittstellen (UART, SPI, I2C) und Versorgungspins. Alternative Pin-Funktionen und Konfigurationsoptionen entnehmen Sie dem Herstellerdatenblatt. Unverzichtbar für Embedded-System-Design und PCB-Layout.
Keine detaillierten Pinbelegungsdaten verfügbar für ATMEGA169P-16MU.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
ATMEGA169P-16MU ist geeignet für 6 Anwendungs: Utility Metering with LCD Display, Hand-Held Test and Measurement Instruments, Consumer Appliance Control Panels, Industrial Sensor Nodes, Battery-Powered Wearable and Portable Devices, Automotive Body and Convenience Electronics (Non-Safety).
Utility Metering with LCD Display
Electricity, water, and gas meters need a processor that can drive a segment LCD, sample analog sensors, and survive years on battery or shunt-derived power. The ATMEGA169P-16MU fits this role because its integrated LCD controller removes an external LCD driver IC, its 8-channel 10-bit ADC samples current and voltage sense inputs directly, and its 2.7 V minimum supply supports low-cell-count power trees. Firmware executes from self-programmable 16 KB Flash, enabling field tariff updates through the ISP interface. Running the AVR at reduced clock frequency cuts active current proportionally since throughput is roughly 1 MIPS per MHz. The 64-QFN (MLF) package suits high-volume reflow assembly in sealed meter enclosures. For new designs, the picoPower ATMEGA169PA-16MU in the same footprint lowers sleep current further, extending battery life without PCB changes.
Empfohlen
Hand-Held Test and Measurement Instruments
Portable multimeters, environmental meters, and hand-held gauges combine an LCD, buttons, and an analog front end - exactly the peripheral set integrated in the ATMEGA169P-16MU. The 8-channel 10-bit ADC digitizes sensor inputs without an external converter, while 1 KB SRAM holds calibration tables and display buffers. JTAG on-chip debug lets engineers set breakpoints in the field-calibration firmware during development using an Atmel-ICE. The 133-instruction single-cycle AVR core delivers 16 MIPS at 16 MHz, sufficient for RMS math on sampled waveforms at modest clock rates, preserving battery budget. The 64-QFN 9x9 mm package keeps the main PCB compact for probe-style form factors. Products needing more code headroom can migrate to the pin-compatible ATMEGA325P-16MU without layout change.
Empfohlen
Consumer Appliance Control Panels
Ovens, coffee machines, and HVAC controllers pair a segment LCD with relays, sensors, and a UI - a workload well matched to the ATMEGA169P-16MU. Its 53 general-purpose I/O lines drive keys, LEDs, and relays directly, the LCD controller renders temperatures and setpoints without a companion driver, and the 10-bit ADC reads NTC thermistors for closed-loop control. The wide 2.7 V to 5.5 V supply range tolerates unregulated appliance aux supplies, and power-down mode with wake-on-interrupt cuts standby consumption to meet eco-standby targets. The 64-QFN (MLF) package withstands reflow profiles used in high-volume appliance PCBA assembly, and self-programmable Flash supports post-production feature enablement. The ATMEGA169PA-16MU offers the same footprint with improved noise immunity and lower current for new designs.
Empfohlen
Industrial Sensor Nodes
Distributed industrial sensing - temperature, pressure, level - benefits from a local MCU that samples, scales, and displays data on a simple LCD while communicating over legacy buses. The ATMEGA169P-16MU provides the 8-channel 10-bit ADC for sensor interfaces, the SPI-based ISP and USI for serial links, and enough 16 MHz throughput for linearization math in single-cycle AVR instructions. Its 5.5 V maximum supply connects directly to legacy 5 V industrial rails without an LDO, simplifying node BOM cost. Power-save modes support duty-cycled sampling that stretches loop-powered budgets. The 64-QFN package with exposed ground pad improves EMI behavior versus leaded packages when the node sits near motor drives. Designs migrating to lower power should drop in the ATMEGA169PA-16MU, which requires no layout change.
Empfohlen
Battery-Powered Wearable and Portable Devices
Pedometers, medical dosimeters, and portable identifiers need an MCU with an always-on LCD, infrequent computation bursts, and minimal average current. The ATMEGA169P-16MU addresses this with its segment LCD controller that can remain active in power-save mode, wake-on-interrupt timers, and operation down to 2.7 V from lithium coin cells via simple regulation. The AVR core executes display update and algorithm code quickly, so the device can return to sleep within milliseconds, and the 512 B EEPROM stores user settings and accumulated counters without external nonvolatile memory. JTAG supports production test and calibration. Because throughput scales at about 1 MIPS per MHz, firmware can deliberately trade speed for current. The ATMEGA169PA-16MU, in the identical 64-QFN package, is the preferred choice for new battery designs thanks to picoPower sleep currents.
Empfohlen
Automotive Body and Convenience Electronics (Non-Safety)
Non-safety automotive subfunctions - seat-position displays, keypads, climate panel indicators - historically used ATmega LCD MCUs because they integrate display, ADC, and robust 5 V operation in one die. The ATMEGA169P-16MU covers these needs with its LCD controller, 8-channel 10-bit ADC for potentiometer and thermistor feedback, 53 I/O lines for switch matrices, and 2.7-5.5 V operation compatible with 12 V rails via a simple regulator. Note that the standard ATMEGA169P is not AEC-Q100 qualified; verify the specific automotive grade variant and PPAP requirements with Microchip before committing the part to a vehicle program. For new automotive designs, consult Microchip's automotive-qualified AVR LCD family rather than assuming interchangeability. The exposed-pad 64-QFN package supports the vibration-resistant soldering typical of automotive PCBA.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für ATMEGA169P-16MU – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | ATMEGA169PA-16MU | ATMEGA165P-16MU | ATMEGA325P-16MU | ATMEGA329P-16MU | ATMEGA169PV-8MU |
|---|---|---|---|---|---|---|
| Package | 64-QFN (MLF) 9x9 mm | 64-QFN (MLF) 9x9 mm - same | 64-QFN (MLF) 9x9 mm - same | 64-QFN (MLF) 9x9 mm - same | 64-QFN (MLF) 9x9 mm - same | 64-QFN (MLF) 9x9 mm - same |
| Brand | Microchip Technology (Atmel) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 16 KB | 16 KB | 16 KB | 32 KB | 32 KB | 16 KB |
| SRAM / EEPROM | 1 KB / 512 B | 1 KB / 512 B | 1 KB / 512 B | 2 KB / 1 KB | 2 KB / 1 KB | 1 KB / 512 B |
| Max Clock Speed | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 8 MHz |
| LCD Controller | Yes | Yes | No | Yes | Yes | Yes |
| Supply Voltage Range | 2.7 V to 5.5 V | 1.8 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 1.8 V to 5.5 V |
| JTAG On-Chip Debug | Yes | Yes | Yes | Yes | Yes | Yes |
Wichtigste Unterscheidungsmerkmale
- Integrated segment LCD controller (vs. ATMEGA165P-16MU)
- Official successor availability (vs. ATMEGA169PA-16MU)
- Flash headroom migration path (vs. ATMEGA325P-16MU)
Designhinweise
The 64-QFN (MLF) 9x9 mm package uses a central exposed die pad that must be connected to ground. Design the PCB land pattern with the exposed pad tied to a grid of ground vias (typically 5x5 or more); this pad is a primary ground connection, not an optional thermal feature. Under-pad vias also allow inspection-friendly solder control. Follow the IPC-compatible land pattern in the Microchip datasheet package drawing, and verify with X-ray on first-article assemblies because pad solder voids under QFN bodies are invisible optically.
Decouple every VCC/GND pad pair with 100 nF ceramic capacitors placed within 2 mm of the package, plus one bulk 10 uF per supply domain. The 2.7 V to 5.5 V operating range means the part tolerates 5 V rails, but flash write reliability degrades near the brown-out threshold - enable brown-out detection (BOD) via fuses at an appropriate level (e.g., 2.7 V for 5 V systems). When self-programming flash in-field, guarantee VCC stability per the datasheet's self-programming supply requirements.
JTAG shares pins with port C: if JTAGEN fuse is programmed (default), PC2-PC5 (TCK/TMS/TDO/TDI) cannot be used as general I/O unless JTAG is disabled. Additionally, RESET can be repurposed as a weak I/O via the RSTDISBL fuse, which permanently disables external programming - avoid this unless in-field reprogramming is never required. Finally, the 'P' die has been superseded by the ATmega169PA; for new designs start with the PA variant to secure supply continuity.
The LCD controller's frame frequency is configurable; choose a segment-driving frequency away from sensitive analog sampling windows of the 10-bit ADC to avoid display-drive coupling into conversions. Route LCD backplane and segment traces away from the ADC input traces and the crystal. Use the AVR noise-reduction sleep instruction immediately before each ADC conversion to reduce digital switching noise inside the die during sampling, a technique documented in Microchip AVR application notes.
Compliance-Informationen
Compliance statuses not stated in the provided web data; verify on the Microchip product page certificate of conformance. The standard ATMEGA169P is not marketed as AEC-Q100 qualified; consult Microchip for automotive-grade variants.
