Z86E7316FSG - 8-Bit 32K OTP Microcontroller | Zilog, Inc.
MPN: Z86E7316FSG ✓ ActiveZ86E7316FSG Overview
A microcontroller is a complete programmable control component that integrates a processor core, memory, I/O, timers, and communication-related peripherals on one integrated circuit. Within the device hierarchy, the Z86E7316FSG is an 8-bit microcontroller, part of the broader embedded-processor and embedded-controller category. One-time-programmable memory makes the device appropriate for products where firmware is written once during manufacturing and does not require later field updates.
The main distinguishing characteristics are its 8-bit processing architecture, 32 KB OTP program memory, and 44-pin QFP package. The expanded register file provides direct access to peripheral registers and supports an efficient register and address-space structure. The flexible I/O arrangement and counter/timer circuitry make the device useful when a design requires flexible external control and event counting rather than a high-bandwidth processor.
The Z86E7X architecture is designed around efficient access to embedded peripherals. Register-mapped timers, I/O ports, and control functions can be managed directly by firmware, reducing the need for external logic. This architecture is especially relevant for appliance controls, industrial interfaces, automotive accessories, and computer-peripheral equipment where deterministic control and compact integration are more important than high computational throughput.
Typical Z86E7X applications include consumer products, automotive equipment, computer peripherals, and embedded control systems. The 44-pin QFP package provides a practical option for through-hole assembly and relatively generous I/O access compared with small-outline surface-mount packages. Design decisions should focus on confirming peripheral requirements, oscillator and reset arrangements, programming methodology, and the electrical limits defined in the manufacturer datasheet before schematic release.
For PCB layout, preserve the manufacturer’s recommended decoupling and programming-interface arrangements. Because OTP memory cannot be rewritten, validate the complete firmware image and production programming sequence before committing to high-volume manufacturing. Check all package dimensions and pin assignments against the current Zilog datasheet rather than relying on a visually similar QFP footprint.
This product page consolidates the core architecture, memory configuration, package information, application guidance, and replacement considerations into an engineering-focused reference. It is designed to help designers determine whether the Z86E7316FSG fits a control design and to identify the additional verification work required before production sourcing.
Drop-in alternatives for Z86E7316FSG — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
No drop-in alternatives available for this product.
Request AlternativesZ86E7316FSG Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit microcontroller |
| Processor Architecture | Z86E7X 8-bit microcontroller core |
| Program Memory | 32 KB OTP |
| Package | 44-pin QFP |
| Mounting Type | Surface mount |
| Expanded Register File | Register-mapped peripheral access |
| I/O Architecture | Flexible I/O scheme |
| Counter/Timer Support | Dedicated counter/timer circuitry |
Z86E7316FSG 44-pin qfp Pin Configuration Guide
Pin configuration for Z86E7316FSG (44-pin qfp 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 Z86E7316FSG.
Refer to the datasheet for full pin configuration.
Typical Applications
Z86E7316FSG is suitable for 6 applications: Consumer Appliance Control, Automotive Accessory Controller, Computer Peripheral Interface, Industrial Counter and Timer Module, LED Display and Indicator Sequencer, Standalone Embedded Control Module.
Consumer Appliance Control
The Z86E7316FSG fits compact consumer appliances that need dedicated logic for switches, indicators, motors, and timing functions. Its 8-bit processor core, 32 KB OTP program memory, flexible I/O scheme, and counter/timer circuitry support firmware-based sequencing without a separate processor. The 44-pin QFP also provides a practical number of connections for control signals and peripherals. Because the program memory is one-time programmable, the design should include a controlled firmware-release process, verified production programming, and enough logic margin for motor or load transients. The same 32 KB limit must be checked against the final application code and any diagnostic functions.
Recommended
Automotive Accessory Controller
The Z86E7316FSG can serve as the controller for an automotive accessory or body-function module where the required logic is deterministic and compact. Its 8-bit Z86E7X core, 32 KB OTP memory, flexible I/O arrangement, and counter/timer resources support button decoding, state machines, timing, and actuator-control functions. The QFP package offers a conventional surface-mount assembly format for mixed PCB designs. Before deployment, confirm the device’s electrical limits, temperature requirements, qualification expectations, transient protection, and communication requirements against the manufacturer documentation. OTP programming also makes production traceability and firmware validation especially important for safety-conscious vehicle programs.
Recommended
Computer Peripheral Interface
The Z86E7316FSG is suitable for a computer peripheral that combines local I/O control with status LEDs, buttons, and timing functions. Its expanded register file gives the 8-bit core structured access to register-mapped peripherals, while the flexible I/O scheme allows external signals to be assigned according to product requirements. The 32 KB OTP area can hold a production firmware image for a fixed-function peripheral, and the 44-pin QFP package simplifies assembly into a conventional controller board. Designers should verify available I/O count, port behavior, clocking, and programming signals in the manufacturer datasheet rather than treating the peripheral application as a generic 40-pin MCU design.
Recommended
Industrial Counter and Timer Module
The Z86E7316FSG fits a compact industrial counter or timer module that must process external events and maintain predictable timing. Its counter/timer circuitry, flexible I/O scheme, and register-mapped peripheral architecture allow firmware to implement pulse counting, elapsed-time measurement, interlocks, and output sequencing. The 8-bit core is appropriate when the workload centers on control logic rather than intensive data processing, while 32 KB of OTP supports a fixed production application. Engineering teams should calculate event-rate and timing margins, define input conditioning, and include failsafe output states. The complete pin and electrical design must follow the Zilog documentation.
Recommended
LED Display and Indicator Sequencer
The Z86E7316FSG can control LED indicators, status displays, and multiplexed indicator patterns in products requiring fixed timing and programmable sequences. Flexible I/O supports connections to display elements and control inputs, while counter/timer resources help maintain stable refresh or blink timing. Its 32 KB OTP program memory accommodates a finalized display-control application, and the 44-pin QFP package offers a practical route for through-hole-compatible assembly. Designers should account for current limits, driver topology, update timing, and fault behavior. Because the memory is one-time programmable, verify the finished animation and operating-mode logic before production programming.
Recommended
Standalone Embedded Control Module
The Z86E7316FSG supports a standalone embedded-control module built around a small set of inputs, outputs, and timed operations. The expanded register file gives firmware direct access to on-chip peripherals, and the flexible I/O scheme simplifies product-specific assignments across consumer and industrial variants. With 32 KB of OTP memory, the controller is particularly suitable for a fixed functional product where field firmware updates are unnecessary. A robust design should include brownout and reset analysis, defined input defaults, and a production programming test point. Confirm the exact pin names, power connections, and package dimensions in the Zilog datasheet before finalizing the schematic and PCB footprint.
Recommended
Recommended Products Summary
Engineering reference data for Z86E7316FSG — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| Manufacturer | Zilog, Inc. |
| Product Type | 8-bit microcontroller |
| Processor Architecture | Z86E7X |
| Program Memory | 32 KB OTP |
| Package | 44-pin QFP |
| Mounting Type | Surface mount |
| Register Architecture | Expanded register file |
| I/O Architecture | Flexible I/O scheme |
| Timer Resources | Counter/timer circuitry |
Key Differentiators
- Integrated one-time-programmable program storage (vs Z86E7316FSC)
- Expanded register-file control architecture (vs Z86E7316FSC)
- 44-pin QFP option for higher pin-count control designs (vs Z86E7316FSC)
Design Notes
Treat the 32 KB OTP program memory as a one-time production commitment. Freeze the final firmware image, verify its checksum and device behavior on representative hardware, and confirm that the documented programming interface, voltage levels, timing, and verification sequence are implemented correctly. A successful programming operation does not by itself prove that every I/O path or application state behaves as intended, so include functional production tests before the OTP step.
Use the exact 44-pin QFP land pattern and pin numbering defined in the manufacturer package drawing rather than selecting dimensions from memory. Check courtyard, solder-mask, paste, and copper-clearance requirements against the PCB process. Preserve access to the programming interface and place any required decoupling close to the associated supply pins while following the recommended layout in the Zilog datasheet.
Assign external signals according to the verified pin-description table and the device’s flexible I/O architecture. Account for possible alternate peripheral functions on shared pins, ensure every input has a defined state during reset and power loss, and keep switching or high-current loads away from sensitive control traces. Add appropriate input conditioning and protection at the board boundary where the product environment requires it.
Compliance Information
The Z86E7316FSG is not identified as an AEC-Q100-qualified automotive device in the available information. RoHS, REACH, lead-free, halogen-free, and conflict-minerals status require confirmation from the current manufacturer documentation.