Z86C9320ASG - 8-Bit 20MHz ROMless MCU | Zilog
料号： Z86C9320ASG ✓ 量产中Z86C9320ASG 概述
An 8-bit microcontroller is a compact embedded-processing component intended to execute firmware, read inputs, control outputs, and manage communication or timing functions in a larger electronic system. Within the embedded hierarchy, this device belongs to the microcontrollers category and uses the Z8 architecture. Because Z86C9320ASG is ROMless, its program memory must be supplied externally rather than being integrated into the device.
The Z86C9320ASG combines a 20 MHz maximum clock with a hardwired 16-bit-by-16-bit multiplier, a 32-bit-by-16-bit divider, and three 16-bit counter timers. The multiplier supports efficient arithmetic in motor-control, measurement, and signal-processing routines, while the divider supports frequency and scaling calculations. These dedicated hardware resources reduce the execution burden placed on the 8-bit processor during time-sensitive control operations.
The device also provides a capture register and a fast decrement mode, expanding the available event-timing options for industrial controls, counters, and timing-sensitive embedded products. The 44-LQFP package exposes 44 external connections and supports conventional surface-mount PCB assembly. Its 10 mm by 10 mm body is larger than the smallest microcontroller packages but provides a practical pin count for peripheral connections and multi-signal interfaces.
Typical design roles include industrial control, digital instrumentation, motor and stepper-control systems, timing modules, and compact embedded controllers. Its dedicated arithmetic and timer resources are particularly useful when the firmware must multiply measurements, divide frequencies, count external events, or coordinate multiple timing sequences without relying entirely on software loops.
For a new design, confirm oscillator, reset, clock, programming, interrupt, and I/O assignments against the manufacturer pin description before laying out the PCB. Because this is a ROMless microcontroller, the external memory interface, associated address and data routing, and programming arrangement can materially affect both routing complexity and board-space requirements.
This product page combines the manufacturer-family characteristics, package information, source pricing context, cross-reference findings, and practical design considerations needed to evaluate the Z86C9320ASG. It also distinguishes verified drop-in replacements from functionally related 8-bit controllers that require separate pin, clock, memory, and peripheral validation.
直接替换替代料： Z86C9320ASG ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
该产品暂无直接替换替代料。
请求替代料Z86C9320ASG 最大额定值与电气特性
| Microcontroller Type | 8-bit ROMless microcontroller |
| Processor Architecture | Z8 8-bit architecture |
| Family | Z86C93 family |
| 最大时钟频率 | 20 MHz |
| Program Memory | ROMless; external program memory required |
| Multiplier | Hardwired 16-bit x 16-bit multiplier |
| Divider | Hardwired 32-bit/16-bit divider |
| Counter Timers | 3 x 16-bit counter timers |
| Capture Register | 1 capture register |
| Timer Mode | Fast decrement mode |
| Process Technology | CMOS |
| 封装 | 44-LQFP |
| Package Body Size | 10 mm x 10 mm |
| 引脚数量 | 44 pins |
| 安装类型 | Surface mount |
Z86C9320ASG 10 mm x 10 mm 引脚配置指南
Z86C9320ASG（10 mm x 10 mm 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： Z86C9320ASG.
请参阅 数据手册 以查看完整引脚配置。
典型应用
Z86C9320ASG 适用于 6 应用s: Industrial Digital Control, Motor and Stepper Control, Digital Instrumentation, Frequency Divider and Counter Module, Programmable Logic Controller, Embedded Product Controller.
Industrial Digital Control
The Z86C9320ASG fits compact industrial-control platforms that require deterministic input handling, periodic timing, and arithmetic performed close to the process interface. Its 20 MHz maximum clock provides the operating range for an 8-bit Z8 controller, while three 16-bit counter timers support event counting and elapsed-time measurement. The hardwired 16-bit-by-16-bit multiplier and 32-bit-by-16-bit divider can accelerate scaling and ratio calculations that would otherwise require multi-byte software. Because the device is ROMless, an external program-memory circuit must be designed with the controller, and the 44-LQFP footprint requires careful routing of address, data, and control signals.
推荐
Motor and Stepper Control
The Z86C9320ASG can serve as the sequencing controller in compact motor or stepper-control systems where multiple timing intervals must remain coordinated. Its three 16-bit counter timers are useful for generating or measuring step intervals, while the fast decrement mode provides a dedicated way to organize decrementing timing sequences. The hardware multiplier supports common scaling operations involving position, rate, or compensation values, and the 20 MHz Z8 core provides control-loop processing capacity. A practical implementation must allocate timers carefully, preserve deterministic interrupt latency, and route the external ROM interface because the controller contains no internal program memory.
推荐
Digital Instrumentation
The Z86C9320ASG is suitable for digital instrumentation that must combine sensor conditioning, arithmetic, event capture, and a local display or communications interface. The dedicated 16-bit-by-16-bit multiplier and 32-bit-by-16-bit divider improve the efficiency of calibration and unit-conversion routines, while three 16-bit timers support measurement windows and periodic sampling. The capture register can synchronize external events with a timer, helping relate measured intervals to sensor or trigger activity. Its 44-LQFP package offers a conventional surface-mount assembly option, although the external program memory and associated bus routing require additional board planning.
推荐
Frequency Divider and Counter Module
The Z86C9320ASG fits frequency-measurement and counting modules that benefit from dedicated divider and timer hardware. The 32-bit-by-16-bit divider can support ratio and scaling calculations, while the three 16-bit counter timers can divide measurement work among event counting, elapsed-time reference, and periodic sampling functions. The capture register allows an external transition to be associated with a timer value, and fast decrement mode supports additional timing sequences. Designers should account for input conditioning, interrupt latency, oscillator tolerance, and counter overflow handling, particularly when deriving time bases from an external crystal or clock source.
推荐
Programmable Logic Controller
The Z86C9320ASG can support compact PLC-like control modules that evaluate discrete inputs, sequence outputs, and coordinate timing functions. Its 20 MHz maximum clock and three 16-bit counters provide resources for periodic tasks and elapsed-event measurements, while the capture register supports external event capture. The hardware multiplier and divider reduce the firmware burden for scaling operations common in control logic. As a ROMless device, it is most convenient where external program memory is already accepted by the board architecture. Firmware design should define safe output states during reset, handle timer overflow deliberately, and confirm interrupt latency under the worst-case control workload.
推荐
Embedded Product Controller
The Z86C9320ASG is appropriate for compact embedded products that combine local control with external program storage and modest I/O demands. The Z8 architecture provides a familiar framework for Z86C93-family code, while the 20 MHz clock supports control and monitoring functions in the target product. Dedicated multiplication, division, and timer resources can lower instruction overhead in arithmetic-heavy routines. The 44-LQFP package is a practical surface-mount choice when the design has many external connections, but it occupies more board area than a 20-pin or 28-pin MCU. Production planning should include memory-interface timing, external-programmer access, reset behavior, and environmental qualification for the intended enclosure.
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推荐产品汇总
工程参考数据： Z86C9320ASG ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 |
|---|---|
| Brand | Zilog, Inc. |
| Package | 44-LQFP |
| Package Body Size | 10 mm x 10 mm |
| Controller Type | 8-bit ROMless microcontroller |
| Architecture | Z8 |
| Maximum Clock Frequency | 20 MHz |
| Multiplier | Hardwired 16-bit x 16-bit |
| Divider | Hardwired 32-bit/16-bit |
| Counter Timers | 3 x 16-bit |
| Program Memory Architecture | ROMless |
关键差异点
- Dedicated arithmetic hardware in an 8-bit controller （对比 AT80C32X2-RLTUL)
- Three dedicated 16-bit counter timers （对比 P80C32X2BBD,157)
- 20 MHz Z8 ROMless architecture （对比 AT80C51RD2-RLTUM)
设计说明
Route the external program-memory interface first because Z86C9320ASG is ROMless. Keep address, data, and memory-control traces short, use continuous reference planes where practical, and place associated memory and termination components near the controller. Confirm the external memory access timing against the 20 MHz operating requirement in the Zilog Z86C93 family datasheet before finalizing trace topology.
Assign the three 16-bit counter timers, capture register, and fast decrement mode before assigning general-purpose I/O. Identify every signal that requires frequency measurement, edge capture, or periodic generation, then reserve the associated timer resources and interrupt priorities. This prevents late-stage pin conflicts and reduces contention between control-loop timing and communication-handling routines.
Do not treat a similar 8-bit MCU as a drop-in replacement solely because its clock rating and instruction set appear comparable. Verify the 44-LQFP footprint, exposed-pad requirements, oscillator circuit, reset behavior, program-memory interface, port multiplexing, interrupt vectors, and peripheral timing. The cross-reference candidates identified for this device are suitable for design comparison only until those conditions are proven equivalent.
Power sequencing and bypass placement are especially important when external program memory operates from the same supply domain. Place the required input and output capacitors at the pins identified in the manufacturer datasheet, maintain short return paths, and check startup behavior before enabling external outputs. Confirm supply limits, input thresholds, and output-drive capabilities against the complete Z86C93 electrical characteristics.
合规信息
No verified product-specific environmental or material-compliance declarations were identified for Z86C9320ASG. Confirm the applicable declarations with the manufacturer before release to a regulated market.