ATTINY85V-10PI Equivalent & Substitute Parts

Part Overview

The ATTINY85V-10PI is an 8-bit AVR microcontroller from Microchip Technology's ATtiny family, featuring 8KB FLASH program memory, 512 bytes EEPROM, and 512 bytes RAM. This device operates at 10MHz with a supply voltage range of 1.8V to 5.5V and includes integrated peripherals such as brown-out detection, power-on reset, PWM, and watchdog timer functionality. The part is mounted in an 8-PDIP through-hole package with 6 I/O pins.

The ATTINY85V-10PI is classified as obsolete. Locating active equivalent parts is necessary to ensure continued design support, improved availability, and compliance with current manufacturing standards.

Key Parameters

Parameter	Value
Core Processor	AVR
Core Size	8-Bit
Speed	10MHz
Program Memory Size	8KB (4K x 16)
Program Memory Type	FLASH
EEPROM Size	512 x 8
RAM Size	512 x 8
Voltage Supply (Vcc/Vdd)	1.8V ~ 5.5V
Data Converters	A/D 4x10b
Number of I/O	6
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT
Connectivity	USI
Oscillator Type	Internal
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Through Hole
Package / Case	8-DIP (0.300", 7.62mm)
Supplier Device Package	8-PDIP

Substitute Part Grouping Explanation

Substitution of the ATTINY85V-10PI is determined by strict equivalence across the following critical parameters:

Core processor architecture (AVR)
Core size (8-Bit)
Operating frequency (10MHz)
Program memory capacity and type (8KB FLASH)
EEPROM and RAM sizes (512 x 8 each)
Supply voltage range (1.8V ~ 5.5V)
Peripheral feature set (Brown-out Detect/Reset, POR, PWM, WDT)
Connectivity interface (USI)
Package form factor (8-PDIP)
Pin count and I/O configuration (6 I/O pins)

The ATTINY85V-10PU meets all these criteria and is classified as a direct substitute. The primary difference is packaging format (tube vs. DIP) and product status (active vs. obsolete).

Parameter Comparison

Parameter	ATTINY85V-10PI	ATTINY85V-10PU	Match
Manufacturer	Microchip Technology	Microchip Technology	✓
Core Processor	AVR	AVR	✓
Core Size	8-Bit	8-Bit	✓
Speed	10MHz	10MHz	✓
Program Memory Size	8KB (4K x 16)	8KB (4K x 16)	✓
Program Memory Type	FLASH	FLASH	✓
EEPROM Size	512 x 8	512 x 8	✓
RAM Size	512 x 8	512 x 8	✓
Voltage Supply (Vcc/Vdd)	1.8V ~ 5.5V	1.8V ~ 5.5V	✓
Data Converters	A/D 4x10b	A/D 4x10b	✓
Number of I/O	6	6	✓
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT	Brown-out Detect/Reset, POR, PWM, WDT	✓
Connectivity	USI	USI	✓
Oscillator Type	Internal	Internal	✓
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	✓
Mounting Type	Through Hole	Through Hole	✓
Package / Case	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	✓
Supplier Device Package	8-PDIP	8-PDIP	✓
Product Status	Obsolete	Active	Different
RoHS Status	RoHS non-compliant	ROHS3 Compliant	Different

Engineering Selection Recommendations

The ATTINY85V-10PU is a direct functional equivalent to the ATTINY85V-10PI. All electrical specifications, memory configurations, peripheral features, and package dimensions are identical. Both devices are manufactured by Microchip Technology and share the same base product number (ATTINY85).

The ATTINY85V-10PU is classified as active, ensuring continued availability and manufacturing support. The ATTINY85V-10PI is obsolete and subject to discontinuation.

The ATTINY85V-10PU carries ROHS3 compliance certification, whereas the ATTINY85V-10PI is RoHS non-compliant. This distinction is significant for applications subject to environmental and regulatory requirements.

For new designs or component replenishment, the ATTINY85V-10PU is the appropriate selection. Existing designs using the ATTINY85V-10PI can transition to the ATTINY85V-10PU without modification to PCB layout, firmware, or system integration, provided that RoHS compliance requirements are satisfied.

Frequently Asked Questions (FAQ)

Q: Can the ATTINY85V-10PU be used as a direct replacement for the ATTINY85V-10PI in existing designs?

A: Yes. The ATTINY85V-10PU is electrically and mechanically identical to the ATTINY85V-10PI. No PCB modifications, firmware changes, or system reconfiguration are required. Both devices operate at 10MHz, feature 8KB FLASH memory, and are packaged in 8-PDIP form factor with identical pin assignments.

Q: What is the difference between the ATTINY85V-10PI and ATTINY85V-10PU?

A: The primary differences are product status and compliance certification. The ATTINY85V-10PI is obsolete and RoHS non-compliant. The ATTINY85V-10PU is active and ROHS3 compliant. All functional and electrical parameters are identical.

Q: Why is the ATTINY85V-10PI classified as obsolete?

A: Microchip Technology has discontinued the ATTINY85V-10PI. The ATTINY85V-10PU remains in active production and is the current recommended part for all applications.

Q: Are there any compatibility concerns when switching from ATTINY85V-10PI to ATTINY85V-10PU?

A: No compatibility concerns exist. Both parts share identical pinouts, electrical characteristics, memory specifications, and peripheral configurations. The transition is a direct substitution.

Q: What does ROHS3 compliance mean for the ATTINY85V-10PU?

A: ROHS3 compliance indicates that the ATTINY85V-10PU meets the Restriction of Hazardous Substances Directive requirements, restricting the use of specific hazardous materials in electrical and electronic equipment. This certification is required for applications in regulated markets and industries.

Q: Can firmware developed for the ATTINY85V-10PI run on the ATTINY85V-10PU without modification?

A: Yes. Both devices use the same AVR core architecture, instruction set, and memory organization. Firmware compiled for the ATTINY85V-10PI will execute identically on the ATTINY85V-10PU without recompilation or modification.

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