Z86E3116SSG - 8-Bit 16MHz OTP MCU | Zilog
MPN: Z86E3116SSG ✓ ActiveZ86E3116SSG Overview
A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals into one device. The Z8 belongs to the microcontroller hierarchy within integrated circuits and embedded processing. The Z86E3116SSG uses one-time-programmable memory, meaning its final firmware is written during manufacturing or production and cannot be rewritten afterward. This is useful for stable products where field updates are unnecessary and security through write protection is desirable.
The device's headline characteristics are an 8-bit CPU architecture, a 16 MHz operating frequency, and 2 KB of OTP program memory. Its 28-pin SOIC package is designed for conventional surface-mount assembly and provides a practical upgrade from larger through-hole controllers when board area is constrained. Because the target MPN is identified as a Z8 2K OTP device, it is suited to compact control logic rather than connectivity-heavy or high-memory embedded systems.
Program memory size is the principal design boundary. A 2 KB OTP budget supports a compact state machine, supervisory routine, keypad controller, or simple peripheral-control firmware, but it requires disciplined code sizing and limits the amount of application logic, tables, and diagnostics that can be included. The 16 MHz clock provides the timing headroom needed for responsive control loops, scanning, and communication routines, provided the firmware is designed around the limited code storage.
Typical applications include appliance control modules, small motor-control boards, illumination controllers, keypads, security accessories, and compact embedded control products. A designer should assign ports according to the datasheet pin description table and reserve the programming and reset-related pins required by the selected Z8 device functions. The 28-pin package also makes it practical to retain through-hole-style prototyping while moving to automated surface-mount production.
The primary engineering consideration is validating the complete firmware image before OTP programming. Because OTP cannot be revised after programming, functional testing, boundary-condition checks, and production traceability become especially important. Verify the oscillator, reset behavior, port multiplexing, and any peripheral configuration against the manufacturer datasheet before releasing devices for programming.
This page combines manufacturer-oriented device identification, verified distributor specifications, same-family drop-in candidates, and practical design guidance for teams evaluating the Z86E3116SSG as a compact 8-bit control solution.
Drop-in alternatives for Z86E3116SSG — 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 Z86E3116SSG (same form factor and footprint) — differing in Maximum Clock Frequency, Mounting Type, Package, Product Type.
Z86E3116SEC
✅ Drop-In📋 Reference alternative (not in catalog)
Z86E3116SEG
✅ Drop-InContact for price
View Datasheet →Z86E3116SSG Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit Microcontroller |
| Microcontroller Family | Z8 |
| Maximum Clock Frequency | 16 MHz |
| Program Memory Type | One-Time Programmable (OTP) |
| Program Memory Size | 2 KB (2K x 8 bits) |
| CPU Architecture | 8-bit |
| Package | 28-pin SOIC |
| Mounting Type | Surface Mount |
| Pin Count | 28 pins |
| Series RAM | 125 bytes |
Z86E3116SSG 28-pin soic Pin Configuration Guide
Pin configuration for Z86E3116SSG (28-pin soic 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 Z86E3116SSG.
Refer to the datasheet for full pin configuration.
Typical Applications
Z86E3116SSG is suitable for 6 applications: Household Appliance Control, Compact Motor Sequencing, LED Lighting Controller, Keypad and Access Controller, Small Sensor Interface Module, Dedicated Instrumentation Controller.
Household Appliance Control
The Z86E3116SSG fits compact appliance-control boards because it combines an 8-bit CPU, 16 MHz clock, and 2 KB of OTP program storage in a 28-pin SOIC package. It can execute a timed state machine for motors, heaters, solenoids, buttons, and indicators without requiring a larger external memory device. The surface-mount package also supports automated assembly after prototype validation. Because OTP cannot be rewritten, the appliance program should be tested on equivalent engineering parts before production programming. Port assignment and electrical limits must follow the manufacturer pin-description table.
Recommended
Compact Motor Sequencing
The Z86E3116SSG can serve as the sequencing controller in a compact motor or pump module where deterministic timing and economical nonvolatile program storage are important. Its 16 MHz operating frequency provides timing headroom for acceleration steps, dwell periods, direction changes, and fault-state monitoring, while the 2 KB OTP budget encourages a compact control algorithm. Designers should minimize code size and confirm that the selected timer and I/O functions are sufficient. Output drivers, protection networks, and any low-power behavior must be designed separately from the microcontroller.
Recommended
LED Lighting Controller
For LED lighting and display-control modules, the Z86E3116SSG offers an 8-bit control platform with a 16 MHz clock and 2 KB of OTP program memory. The MCU can manage button input, lighting sequences, timing effects, and simple status feedback within a compact SOIC-28 footprint. Use PWM-capable pins and current-limiting drivers for LED outputs, and verify the exact port functions in the datasheet before finalizing the schematic. A lighting controller with fixed production firmware benefits from OTP write protection because the finalized program cannot be altered after programming.
Recommended
Keypad and Access Controller
The Z86E3116SSG can support compact keypad, lock-control, and simple access-control modules where a small code footprint and secure one-time programming are valuable. A 16 MHz clock permits responsive debouncing and event sequencing, while the 8-bit architecture is appropriate for straightforward command processing and indicator management. The 2 KB program limit requires concise routines and carefully selected features. Validate scan timing, lock-driver interface, reset behavior, and fault handling in the system, and use the complete manufacturer programming procedure so the final lockout code cannot be reconstructed or overwritten.
Recommended
Small Sensor Interface Module
The Z86E3116SSG is appropriate for small sensor-interconditioning modules that require digital acquisition, threshold logic, status reporting, and local actuator control. Its 16 MHz processing rate supports periodic sampling and filtering tasks, while the compact 28-pin SOIC footprint leaves board area for sensors and signal-conditioning components. The device is better suited to limited data acquisition than communications-heavy gateways because its program storage is only 2 KB. Verify the available analog and digital functions, I/O mapping, and supply requirements in the manufacturer datasheet before selecting it.
Recommended
Dedicated Instrumentation Controller
The Z86E3116SSG can act as a dedicated instrumentation controller in compact test, measurement, or calibration equipment where a fixed control sequence and stable firmware are primary requirements. The 16 MHz clock supports responsive control-loop and measurement-timing tasks, and 2 KB of OTP storage is sufficient for focused acquisition, scaling, limit checking, and front-panel logic. The 28-pin package provides a practical surface-mount assembly option. Confirm the required timer, serial, analog, and interrupt resources against the datasheet, and avoid adding firmware features after production programming has begun.
Recommended
Recommended Products Summary
Engineering reference data for Z86E3116SSG — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | Z86E3116SEC | Z86E3116SEG |
|---|---|---|---|
| Brand | Zilog, Inc. | Zilog, Inc. | Zilog, Inc. |
| Package | SOIC-28 | SOIC-28 | SOIC-28 |
| CPU Architecture | 8-bit | 8-bit | 8-bit |
| Maximum Clock Frequency | 16 MHz | 16 MHz | 16 MHz |
| Pin Count | 28 pins | 28 pins | 28 pins |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Ordering Suffix | SSG | SEC | SEG |
Key Differentiators
- Compact integrated nonvolatile control (vs Z86E3116SEC)
- Exact package and clock alignment (vs Z86E3116SEG)
- Production simplicity for fixed firmware (vs Z86E3116SEC)
Design Notes
Treat OTP programming as a one-way production step. Validate the complete firmware image on engineering parts, including reset states, port initialization, oscillator startup, timer behavior, and all fault paths, before programming production devices. Keep a controlled firmware revision record and programming traceability for each lot because an OTP image cannot be corrected after the device has been programmed.
Assign the PCB footprint and schematic symbol directly from the 28-pin SOIC pin table, including programming, reset, power, ground, and all alternate-function pins. Place the decoupling capacitor close to the device supply pins and keep switching or high-current traces away from sensitive control nets. Confirm pin functions and exposed test requirements in the manufacturer datasheet before releasing the layout.
Estimate the average and peak current consumed by the MCU, external pull-ups, indicators, and attached circuits when defining the regulator and supply path. The 16 MHz operating speed does not determine power consumption by itself; active duty cycle, peripherals, output loading, and voltage determine the actual demand. Check each operating mode against the datasheet limits and size the power network for the worst transient condition.
Reserve every programming and configuration pin required by the selected Z8 device, and make the programming fixture accessible without introducing shorts to adjacent signal pins. If an external oscillator is used, follow the manufacturer layout guidance for routing and grounding. For timing-sensitive outputs, calculate the margin at 16 MHz and verify edge behavior in the worst-case clock and load conditions.
Compliance Information
The device is an 8-bit microcontroller rather than an automotive-qualified MCU; no AEC-Q100 qualification is identified. RoHS, REACH, lead-free, halogen-free, and conflict-minerals status require confirmation from the manufacturer or current material documentation.
