Z86E4016VSG - 8-Bit 16MHz OTP Microcontroller | Zilog
MPN: Z86E4016VSG ✓ ActiveZ86E4016VSG Overview
A microcontroller is a programmable semiconductor that combines a processor core, program memory, data memory, I/O ports, timers, and communication interfaces on one integrated circuit. The Z86E4016VSG belongs to the Z8 Classic family of 8-bit embedded processors. It is positioned between general-purpose microcontrollers and larger 16-bit or 32-bit control platforms, providing sufficient performance for appliance controls, industrial interfaces, instrumentation, and embedded peripheral control.
The principal specifications are a 16 MHz clock speed, 4 KB of OTP program memory, 236 bytes of RAM, and 32 I/O lines. The 8-bit bus architecture simplifies connection to common peripherals, while the 44-pin PLCC package provides a substantial lead count for digital input/output functions and control signals. Programmable OTP options include an RC oscillator, EPROM protection, and automatic latch disable, as identified in the manufacturer family information.
The Z8 architecture is designed for compact embedded control rather than high-throughput computing. Its 8-bit data path and 16 MHz operating clock are well suited to sequential control logic, signal conditioning, keypad and switch scanning, lamp or relay control, and communication-interface peripherals. Because program memory is one-time-programmable, the device is appropriate for production designs where a fixed firmware image is assigned during manufacturing.
Typical uses include industrial control modules, test and measurement equipment, appliance controllers, building-control interfaces, and compact embedded systems. The PLCC-44 package also supports socket-based prototypes and serviceable assemblies, while a surface-mount implementation provides a compact permanent PCB footprint. The 4.5 V to 5.5 V supply range supports conventional 5 V logic systems.
Designers should verify oscillator, timing, reset, and port requirements against the Z86E40 family documentation before schematic capture. OTP programming must be planned as a manufacturing step, and the permanent-programming decision should be reviewed against field-update requirements. The 44-pin PLCC footprint should also be checked for thermal performance and assembly compatibility.
This product page consolidates the device specifications, verified source links, package characteristics, application guidance, and drop-in replacement status. It also distinguishes electrically similar devices that use different packages, preventing a footprint mismatch from being mistaken for a PCB-compatible replacement.
Drop-in alternatives for Z86E4016VSG — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with Z86E4016VSG (same form factor and footprint) — differing in Microcontroller Type, Mounting Type, Program Memory Size.
No drop-in alternatives available for this product.
Request AlternativesZ86E4016VSG Maximum Ratings & Electrical Characteristics
| Microcontroller Type | 8-bit Z8 microcontroller |
| Data Bus Width | 8 bit |
| Maximum Clock Speed | 16 MHz |
| Program Memory Size | 4 KB |
| Program Memory Organization | 4K x 8 bits |
| Program Memory Type | One-time programmable (OTP) |
| RAM Size | 236 bytes |
| I/O Port Count | 32 lines |
| Nominal Supply Voltage | 5 V |
| ChipDig Stated Supply Voltage | 4.5 V to 5.5 V |
| Alternative Stated Supply Voltage | 3.5 V to 5.5 V |
| Package Type | PLCC-44 |
| Package Construction | Plastic leadless chip carrier |
| Mounting Type | Surface mount |
| Programmable RC Oscillator Option | Yes |
| EPROM Protection Option | Yes |
| Automatic Latch Disable Option | Yes |
| RoHS Status | Compliant |
Z86E4016VSG plastic leadless chip carrier Pin Configuration Guide
Pin configuration for Z86E4016VSG (plastic leadless chip carrier package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for Z86E4016VSG.
Refer to the datasheet for full pin configuration.
Typical Applications
Z86E4016VSG is suitable for 6 applications: Industrial Control Module, Test and Measurement Front Panel, Appliance Controller, Building and Environmental Control, Embedded Peripheral Controller, LED and Indicator Control.
Industrial Control Module
The Z86E4016VSG fits compact industrial control modules because its 16 MHz Z8 processor provides useful sequencing performance while 32 I/O lines support switches, sensors, indicators, and actuator-control signals. The 4 KB OTP ROM can hold a fixed control program, and the PLCC-44 package offers a practical socketed prototyping option. Design the firmware around the verified 4 KB program-memory limit, use the 236-byte RAM carefully, and confirm temperature and transient requirements against the family documentation.
Recommended
Test and Measurement Front Panel
The Z86E4016VSG can control front-panel logic in test and measurement equipment, where keypads, rotary selectors, status lamps, relays, and display-enable signals require coordinated digital I/O. Its 8-bit architecture and 16 MHz clock are appropriate for deterministic menu and sequencing functions, while the 32 I/O lines reduce the need for external interface logic. Keep timing-critical operations within the verified clock and memory constraints, and isolate external relay or high-voltage interfaces from the microcontroller pins.
Recommended
Appliance Controller
The Z86E4016VSG is suitable for appliance-control boards that coordinate mode selection, buttons, indicators, timers, and low-voltage actuator commands. Its 4 KB OTP program memory supports a compact production firmware image, and 32 I/O lines provide direct access to multiple panel and peripheral signals. The PLCC-44 footprint is useful where serviceability or socket assembly is important. Validate output drive, protection, operating temperature, and ESD requirements for the particular appliance environment.
Recommended
Building and Environmental Control
The Z86E4016VSG can implement compact building-control subnodes for reading switches, operating indicator lamps, and sequencing distributed field inputs. Its 16 MHz operating speed and 32 I/O lines support several digital channels, while the one-time-programmable memory suits fixed configurations installed in the field. Design protection and grounding for long cable-connected inputs, avoid exposing pins beyond the device's electrical limits, and verify whether the product's stated temperature range satisfies the installation environment.
Recommended
Embedded Peripheral Controller
The Z86E4016VSG can act as a dedicated peripheral controller when a host system needs local pin monitoring, mode sequencing, and programmable logic. The 8-bit data path efficiently handles byte-oriented commands, and the 236-byte RAM supports limited protocol and buffering tasks. A PLCC-44 assembly allows socketed prototypes and straightforward replacement during development. Choose this device when its fixed 4 KB firmware capacity is sufficient; larger protocol stacks or application graphs may require a higher-memory microcontroller.
Recommended
LED and Indicator Control
The Z86E4016VSG is appropriate for managing LED banks, status indicators, panel displays, and visual fault codes in compact equipment. Its 32 I/O lines allow multiple indicator groups to be controlled directly, and the 16 MHz Z8 core can implement blink patterns, sequences, and debounce logic. Keep the program within 4 KB and account for RAM use by timing routines. Use current-limiting resistors or suitable driver stages, and verify that each indicator load remains within the electrical drive limits documented for the device.
Recommended
Recommended Products Summary
Engineering reference data for Z86E4016VSG — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| Package | PLCC-44 |
| Brand | Zilog |
| Program Memory | 4 KB OTP |
| RAM | 236 bytes |
| Clock Speed | 16 MHz |
| Data Bus | 8 bit |
| I/O Lines | 32 |
| Supply Voltage | 4.5 V to 5.5 V; another listing states 3.5 V to 5.5 V |
| Lifecycle Status | Active |
Design Notes
Treat the PLCC-44 footprint as a fixed mechanical commitment. Before layout release, compare the PCB land pattern, pad dimensions, and pin-1 orientation against the package drawing and socket or assembly process. Similar Z86E4016 variants use DIP or LQFP packages, so changing only the electrical schematic without changing the PCB footprint will not produce a manufacturable assembly.
Resolve the conflicting supply-voltage statements before circuit design: one specification lists 4.5 V to 5.5 V and another lists 3.5 V to 5.5 V. Use the Zilog family documentation to establish the valid operating range for the selected clock and temperature conditions. Decoupling and regulator design should be based on that confirmed limit rather than the broader listing value.
Do not plan firmware updates after OTP programming because the program memory is one-time programmable. Establish the complete firmware image, configuration options, test coverage, and programming fixtures before release. The documented options include an RC oscillator, EPROM protection, and automatic latch disable, which should be reviewed for consistency with the production configuration.
Compliance Information
RoHS status is stated as compliant by the LCSC product listing. No definitive reach, AEC-Q100, lead-free, halogen-free, or conflict-minerals declaration is stated for the exact part in the cited material.
