Counterfeit and defect prevention
Visual and packaging inspection
Electrical performance verification
Service Email:
[email protected]
>
ATMEGA162-16PU
Microchip Technology
IC MCU 8BIT 16KB FLASH 40DIP
7695 Pcs New Original In Stock
AVR AVR® ATmega Microcontroller IC 8-Bit 16MHz 16KB (8K x 16) FLASH 40-PDIP
Request Quote
(Ships tomorrow)
*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (365 Ratings)
ATMEGA162-16PU
Product Overview
1270622
DiGi Electronics Part Number
ATMEGA162-16PU-DGManufacturer
Microchip Technology
ATMEGA162-16PU
Description
IC MCU 8BIT 16KB FLASH 40DIPInventory
7695 Pcs New Original In Stock
AVR AVR® ATmega Microcontroller IC 8-Bit 16MHz 16KB (8K x 16) FLASH 40-PDIP
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
Shipping & Delivery
Quality Assurance
365 - Day Quality Guarantee - Every part fully backed.
90 - Day Refund or Exchange - Defective parts? No hassle.
Limited Stock, Order Now - Get reliable parts without worry.
Global Shipping & Secure Packaging
Worldwide Delivery in 3-5 Business Days
100% ESD Anti-Static Packaging
Real-Time Tracking for Every Order
Secure & Flexible Payment
Credit Card, VISA, MasterCard, PayPal, Western Union, Telegraphic Transfer(T/T) and more
All payments encrypted for security
ATMEGA162-16PU Technical Specifications
Category
Embedded, Microcontrollers
Packaging
Tube
Series
AVR® ATmega
Product Status
Active
DiGi-Electronics Programmable
Not Verified
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
EBI/EMI, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O
35
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
EEPROM Size
512 x 8
RAM Size
1K x 8
Voltage - Supply (Vcc/Vdd)
2.7V ~ 5.5V
Data Converters
-
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Through Hole
Supplier Device Package
40-PDIP
Package / Case
40-DIP (0.600", 15.24mm)
Base Product Number
ATMEGA162
Datasheet & Documents
Design Resources
ATMEGA162 Development Tool Selector
HTML Datasheet
ATMEGA162-16PU-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.31.0001
Additional Information
Other Names
2266-ATMEGA162-16PU
ATMEGA16216PU
Standard Package
10
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
Très satisfait de la livraison express, mes composants sont arrivés rapidement et ont prouvé leur résistance face à l’usage prolongé.
de desembre 02, 2025
L'assistance client est top, très réactive et professionnelle.
de desembre 02, 2025
DiGi Electronics uses high-quality packaging materials that protect products during shipment, showing their commitment to quality.
de desembre 02, 2025
I am consistently impressed by DiGi’s attention to customer needs.
de desembre 02, 2025
I will continue to purchase from DiGi Electronics knowing I am supported well.
Publish Evalution
Evalution Message
Please enter your review message.
Please post honest comments and do not post ilegal comments.
Frequently Asked Questions (FAQ)
What are the key reliability risks when using the ATMEGA162-16PU in industrial environments with fluctuating power supplies, and how can I mitigate them?
The ATMEGA162-16PU operates within a wide Vcc range (2.7V–5.5V), but voltage sags or noise near the lower threshold can trigger unintended brown-out resets or erratic behavior. To mitigate this, enable the internal Brown-out Detection (BOD) at an appropriate level (e.g., 2.7V or 4.0V via fuse settings) and supplement with a low-ESR decoupling capacitor (100nF ceramic + 10µF tantalum) close to Vcc pins. For harsh environments, consider adding a supervisory IC like the MCP100-460 for clean reset control and transient immunity.
Can the ATMEGA162-16PU be directly replaced with the ATmega16-16PU in an existing 40-DIP design without firmware changes?
No, direct replacement is not recommended. While both are 8-bit AVR MCUs in 40-PDIP packages, the ATMEGA162-16PU includes an enhanced memory interface (EBI) and dual UARTs, whereas the ATmega16-16PU has only one UART and lacks EBI. Additionally, fuse bit configurations, peripheral register mappings, and interrupt vector tables differ. Firmware must be recompiled and retested—especially for USART and memory bus usage—making drop-in compatibility risky without thorough validation.
How does the internal oscillator accuracy of the ATMEGA162-16PU impact UART communication, and when should I use an external crystal?
The ATMEGA162-16PU’s internal RC oscillator has ±10% tolerance over temperature and voltage, which exceeds the typical ±2–3% required for reliable asynchronous UART communication (e.g., 9600 baud). For robust serial links—especially in multi-drop or long-distance RS-232/485 networks—use an external 16MHz crystal with 22pF load capacitors. This ensures baud rate accuracy and prevents framing errors. Reserve the internal oscillator only for non-critical debugging or low-speed protocols where timing tolerance is acceptable.
What design constraints should I consider when routing the 35 I/O pins of the ATMEGA162-16PU in a high-noise through-hole PCB layout?
In through-hole designs using the 40-DIP package, long lead lengths increase susceptibility to EMI and crosstalk. Minimize loop areas by placing ground planes beneath signal traces, avoid running high-speed lines (e.g., SPI clock) parallel to analog or reset lines, and use series termination resistors (22–100Ω) on fast edges. Since the ATMEGA162-16PU lacks built-in ESD protection beyond standard CMOS levels, add TVS diodes on exposed I/Os (e.g., user buttons or communication ports) to prevent latch-up during handling or operation in dry environments.
Is it safe to operate the ATMEGA162-16PU at 16MHz with a 3.3V supply in a battery-powered IoT node, and what are the trade-offs?
Yes, the ATMEGA162-16PU is rated for 16MHz operation down to 4.5V, but running at 3.3V pushes timing margins to the limit—especially at elevated temperatures. While functional in many cases, you risk marginal FLASH read/write reliability and reduced noise immunity. For battery-powered designs, consider underclocking to 8MHz (which is fully stable at 3.3V) to extend battery life and improve robustness. Alternatively, use a boost converter to maintain 5V rail integrity, or select a lower-voltage-optimized sibling like the ATmega328P-AU if board space allows migration to SMD.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
ATMEGA162-16PU CAD Models
Microchip Technology ATMEGA162-16PU PCB symbols & footprints
productDetail
