Z8F021APJ020SC Equivalent & Substitute Parts

Part Overview

The Z8F021APJ020SC is an 8-bit microcontroller from Zilog's eZ8 Encore!® XP® series, featuring 2KB FLASH program memory, 512 bytes of RAM, and 64 bytes of EEPROM. This device integrates IrDA and UART/USART connectivity with peripheral functions including PWM, watchdog timer, brown-out detection, and low-voltage detection. The part operates at 20MHz with an internal oscillator and supports 25 I/O pins in a 28-DIP package.

The Z8F021APJ020SC is classified as obsolete. Locating equivalent or substitute components is necessary for ongoing system support, maintenance, and new production runs where original inventory is depleted or unavailable.

Substiute Parts

Z8F021APJ020SC

ZilogIn Stock: 1066Z8F021APJ020SC Datasheet

Current PartRFQ

Z8F021APJ020SG2156

ZilogIn Stock: 998Z8F021APJ020SG2156 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Z8F021APJ020SC is determined by strict equivalence across the following critical parameters:

• Core processor architecture (eZ8)
• Core size (8-Bit)
• Operating frequency (20MHz)
• Program memory capacity and type (2KB FLASH)
• RAM and EEPROM capacity (512 x 8 and 64 x 8 respectively)
• Supply voltage range (2.7V ~ 3.6V)
• I/O pin count (25)
• Connectivity features (IrDA, UART/USART)
• Peripheral feature set (Brown-out Detect/Reset, LED, LVD, POR, PWM, WDT)
• Operating temperature range (0°C ~ 70°C)
• Physical package (28-DIP)

The Z8F021APJ020SG2156 meets all these criteria and is classified as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The Z8F021APJ020SG2156 is the direct substitute for the Z8F021APJ020SC. Both parts share identical electrical and mechanical specifications, including core architecture, memory configuration, I/O count, and operating parameters.

The primary distinction is product lifecycle status: the Z8F021APJ020SC is obsolete, while the Z8F021APJ020SG2156 is active. Additionally, the Z8F021APJ020SG2156 carries ROHS3 compliance, whereas the original part is RoHS non-compliant. For new designs or production runs requiring RoHS compliance, the Z8F021APJ020SG2156 is the appropriate selection. For legacy system maintenance where RoHS compliance is not a requirement, both parts are functionally equivalent.

Frequently Asked Questions (FAQ)

Q: Are the Z8F021APJ020SC and Z8F021APJ020SG2156 pin-compatible?

A: Yes. Both parts use the 28-DIP package with identical pinout, I/O configuration, and electrical characteristics. Direct PCB substitution is possible without layout modification.

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

A: The parts are electrically and mechanically identical. The Z8F021APJ020SG2156 is the active production variant with ROHS3 compliance and tube packaging, while the Z8F021APJ020SC is the obsolete variant with RoHS non-compliant status and different packaging.

Q: Can I use the Z8F021APJ020SG2156 in place of the Z8F021APJ020SC in existing designs?

A: Yes. The Z8F021APJ020SG2156 is a direct functional equivalent. No firmware, software, or circuit modifications are required. Existing firmware compiled for the Z8F021APJ020SC will execute identically on the Z8F021APJ020SG2156.

Q: Does the Z8F021APJ020SG2156 have the same memory configuration?

A: Yes. Both parts feature 2KB FLASH program memory, 512 bytes of RAM, and 64 bytes of EEPROM. Memory addressing, access timing, and programming procedures are identical.

Q: Are there any supply voltage or thermal differences?

A: No. Both parts operate within the same supply voltage range (2.7V ~ 3.6V) and temperature range (0°C ~ 70°C). Thermal and electrical performance characteristics are equivalent.

Q: What packaging options are available for the substitute part?

A: The Z8F021APJ020SG2156 is supplied in tube packaging. The original Z8F021APJ020SC packaging format is not specified in the available data.