Z8F022ASH020SG2156

Microcontrollers Overview

The Z8F022ASH020SG2156 is an 8-bit microcontroller from the Zilog Z8 Encore! XP F082A Series, utilizing the eZ8 CPU core. It features 2 KB of Flash program memory, 512 bytes of register RAM, and 64 bytes of Non-Volatile Data Storage (NVDS). The device includes a 7-channel, 10-bit Analog-to-Digital Converter (ADC), two 16-bit timers with PWM capabilities, and a full-duplex UART with IrDA support. Operating at a maximum clock frequency of 20 MHz, it functions within a voltage range of 2.7 V to 3.6 V and supports standard temperature operation from 0°C to +70°C.

Microcontrollers Feature Summary

• Integrates an 8-channel, 10-bit ADC supporting single-ended and differential input modes for analog signal acquisition.
• Includes an on-chip Internal Precision Oscillator (IPO) providing trimmed clock sources without external components.
• Features a full-duplex Universal Asynchronous Receiver/Transmitter (UART) with Infrared Data Association (IrDA) encoding and decoding.
• Supports in-circuit programming via a single-pin On-Chip Debugger (OCD) interface.

Microcontrollers Applications

• Applications requiring serial communication with infrared data association compliance
• Systems utilizing low-power operational amplifiers for current sensing
• Devices measuring die temperature using the integrated on-chip sensor

Microcontrollers Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type, temperature range, and environmental compliance. Ensure the selected variant matches the required pin count and peripheral configuration for the target application design.

Microcontrollers Selection Notes

Select this component when 2 KB of Flash memory and 512 bytes of RAM are sufficient for the application logic. The presence of the 10-bit ADC and NVDS distinguishes it from variants lacking these peripherals. Confirm that the 20-pin SOIC package aligns with the PCB layout constraints.

Microcontrollers Part Context

This part belongs to the Z8 Encore! XP F082A Series, which offers scalable memory configurations ranging from 1 KB to 8 KB of Flash. The series shares a common eZ8 architecture but varies in I/O counts, ADC channels, and non-volatile storage capacities depending on the specific model number.

Microcontrollers Replacement Considerations

Substitute only with other Z8F022ASHxxxxx variants if different packaging or temperature ratings are needed. Verify that any replacement maintains the same 2 KB Flash, 512 B RAM, and 64 B NVDS specifications.

Microcontrollers FAQ

Does the Z8F022ASH020SG2156 include an internal precision oscillator?

Yes, the device features an on-chip Internal Precision Oscillator (IPO) that provides 5 MHz and 32 kHz clock sources without requiring external components.

What is the function of the NVDS feature in this microcontroller?

The Non-Volatile Data Storage (NVDS) allows for the retention of data without power, providing up to 128 B of storage capacity across the series, with this specific model containing 64 B.