Z8F3222AR020SC Equivalent & Substitute Parts

Part Overview

The Z8F3222AR020SC is an eZ8 Encore!® XP® 8-bit microcontroller manufactured by Zilog, featuring 32KB FLASH program memory, 2KB RAM, and a 20MHz core processor. This device integrates multiple communication interfaces (I2C, IrDA, SPI, UART/USART) and peripheral functions including PWM, watchdog timer, and DMA controller. The part is currently classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Core Processor	eZ8
Core Size	8-Bit
Speed	20MHz
Program Memory Size	32KB (32K x 8)
Program Memory Type	FLASH
RAM Size	2K x 8
Voltage Supply (Vcc/Vdd)	3V ~ 3.6V
Number of I/O	46
Connectivity	I2C, IrDA, SPI, UART/USART
Peripherals	Brown-out Detect/Reset, DMA, POR, PWM, WDT
Data Converters	A/D 12x10b
Oscillator Type	Internal
Operating Temperature	0°C ~ 70°C (TA)
Package / Case	64-LQFP
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution eligibility for the Z8F3222AR020SC is determined by strict equivalence across the following critical parameters:

Core Architecture: eZ8 processor family
Memory Configuration: 32KB FLASH program memory and 2KB RAM
Clock Speed: 20MHz operation
Supply Voltage: 3V to 3.6V operating range
I/O Count: 46 I/O pins
Interface Set: I2C, IrDA, SPI, UART/USART connectivity
Peripheral Feature Set: Brown-out Detect/Reset, DMA, POR, PWM, WDT
Package Format: 64-LQFP surface mount
Data Conversion: 12-bit 10-channel analog-to-digital converter

The Z8F3222AR020SG meets all electrical and mechanical equivalence criteria and is classified as a direct substitute.

Parameter Comparison

Parameter	Z8F3222AR020SC (Main)	Z8F3222AR020SG (Substitute)
Manufacturer	Zilog	Zilog
Series	Encore!® XP®	Encore!® XP®
Core Processor	eZ8	eZ8
Core Size	8-Bit	8-Bit
Speed	20MHz	20MHz
Program Memory Size	32KB (32K x 8)	32KB (32K x 8)
Program Memory Type	FLASH	FLASH
RAM Size	2K x 8	2K x 8
Voltage Supply (Vcc/Vdd)	3V ~ 3.6V	3V ~ 3.6V
Number of I/O	46	46
Connectivity	I2C, IrDA, SPI, UART/USART	I2C, IrDA, SPI, UART/USART
Peripherals	Brown-out Detect/Reset, DMA, POR, PWM, WDT	Brown-out Detect/Reset, DMA, POR, PWM, WDT
Data Converters	A/D 12x10b	A/D 12x10b
Oscillator Type	Internal	Internal
Operating Temperature	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)
Package / Case	64-LQFP	64-LQFP
Mounting Type	Surface Mount	Surface Mount
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8542.31.0001	8542.31.0001

Engineering Selection Recommendations

The Z8F3222AR020SG is the direct functional equivalent of the Z8F3222AR020SC. Both devices share identical electrical specifications, memory configuration, I/O architecture, and peripheral feature sets. The primary distinction lies in product lifecycle status and regulatory compliance.

The Z8F3222AR020SC is classified as obsolete, whereas the Z8F3222AR020SG maintains active product status with current manufacturer support. The Z8F3222AR020SG additionally achieves ROHS3 compliance, compared to the non-compliant status of the Z8F3222AR020SC. Both devices maintain equivalent moisture sensitivity ratings and export classification codes.

For new designs or system replacements, the Z8F3222AR020SG is the appropriate selection due to active availability and enhanced regulatory compliance. Existing systems currently utilizing the Z8F3222AR020SC can transition to the Z8F3222AR020SG without modification to hardware design or firmware implementation.

Frequently Asked Questions (FAQ)

Q: Are the Z8F3222AR020SC and Z8F3222AR020SG pin-compatible?

A: Yes. Both devices utilize the 64-LQFP surface mount package with identical pin assignments, I/O configuration, and electrical characteristics.

Q: What is the difference between the two part numbers?

A: The primary differences are product status and packaging format. The Z8F3222AR020SC is obsolete and supplied in tube packaging. The Z8F3222AR020SG is active and supplied in tray packaging. Both are electrically and functionally identical.

Q: Can I use the Z8F3222AR020SG as a direct replacement in existing applications?

A: Yes. The Z8F3222AR020SG is a direct substitute with no design modifications required. Firmware and hardware designs developed for the Z8F3222AR020SC operate without change on the Z8F3222AR020SG.

Q: What is the significance of the RoHS compliance difference?

A: The Z8F3222AR020SG meets ROHS3 compliance standards, whereas the Z8F3222AR020SC does not. For applications subject to RoHS regulatory requirements, the Z8F3222AR020SG is the compliant choice.

Q: Are there any differences in memory specifications?

A: No. Both devices feature identical 32KB FLASH program memory and 2KB RAM configuration.

Q: What is the operating voltage range for both devices?

A: Both the Z8F3222AR020SC and Z8F3222AR020SG operate within the 3V to 3.6V supply voltage range.

Q: Are the peripheral feature sets identical?

A: Yes. Both devices include Brown-out Detect/Reset, DMA, POR, PWM, and WDT functionality with identical specifications.

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