ATTINY88-MMH - 12MHz 8-Bit AVR Microcontroller | Microchip
料号： ATTINY88-MMH ✓ 量产中ATTINY88-MMH 概述
An 8-bit microcontroller is a programmable semiconductor that integrates a CPU core, nonvolatile program memory, data memory, I/O ports, and peripherals on one package. The ATTINY88 belongs to the ATtiny family, which uses Microchip's AVR instruction architecture and reduced instruction set computer design. Its 8-bit processing path is appropriate for simple state machines, sensor conditioning, actuator control, and communication tasks where deterministic control is more important than high-bandwidth computation.
Key features include 8 KB of flash configured as 4K x 16 words, 64 bytes of EEPROM, 512 bytes of SRAM, 32 general-purpose working registers, and two flexible timer/counters with compare modes. The controller also provides internal and external interrupt sources, as identified by the manufacturer-family datasheet material. Its 12 MHz maximum clock supports responsive peripheral timing while allowing the firmware to control clock behavior where system-level power requirements demand it.
The device implements a picoPower-oriented, low-power AVR architecture that combines an 8-bit RISC CPU with integrated serial interfaces and analog-capable I/O resources. Its 28 general-purpose I/O lines provide substantial board-level connectivity for LEDs, switches, sensors, and control signals. Flash memory permits in-system programming, while EEPROM supports parameter retention and 512 bytes of SRAM provide working space for stack, variables, and intermediate data.
Typical applications include compact industrial controls, sensor nodes, LED lighting controllers, compact instrumentation, educational control boards, and low-cost consumer accessories. The 28-VQFN package is particularly useful where PCB area is constrained, although its fine pitch demands careful PCB layout, stencil design, solder-paste control, and inspection during assembly.
When designing around the ATTINY88-MMH, preserve the package footprint and verify every peripheral connection against the manufacturer pinout before release. The 4 x 4 mm VQFN also requires attention to thermal pad connectivity, solderability, assembly profile, and cleaning practices. Because the exposed construction is difficult to inspect optically, DPa X-ray inspection is advisable when the assembly process permits it.
This product data consolidates current distributor availability, package information, core memory and timing specifications, replacement constraints, and application-oriented engineering guidance. It also distinguishes verified production status from uncertain sourcing fields, making the ATTINY88-MMH easier to evaluate for new and existing embedded-system designs.
直接替换替代料： ATTINY88-MMH ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ATTINY88-MMH （相同外形与封装尺寸） ——差异在于 Architecture, Flash Memory, General-Purpose I/O Lines, General-Purpose Working Registers, Lifecycle Status.
ATTINY48-MMHR
✅ 直接替换📋 参考替代料（不在目录中）
ATTINY48-MMU
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ATTINY88-MMH 最大额定值与电气特性
| Product Type | 8-bit RISC-based CMOS microcontroller |
| Architecture | AVR RISC |
| 最大时钟频率 | 12 MHz |
| Flash Memory | 8 KB (4K x 16 words) |
| Flash Programming | In-system programmable |
| EEPROM | 64 byte |
| SRAM | 512 byte |
| General-Purpose I/O Lines | 28 lines |
| General-Purpose Working Registers | 32 registers |
| Timer/Counter Count | 2 timers/counters |
| Timer Feature | Compare modes |
| Interrupt Sources | Internal and external |
| Instruction Set | 123 instructions, most executed in a single clock cycle |
| Operating Voltage | 5 V |
| 封装 | 28-VQFN (4 x 4 mm) |
| 安装类型 | Surface mount |
| 生命周期状态 | Active; listed as in production |
| Industrial Temperature Grade | Industrial temperature grade |
| Green Compliance | Green |
| Terminal Finish | NiPdAu |
ATTINY88-MMH 28-vqfn (4 x 4 mm) 引脚配置指南
ATTINY88-MMH（28-vqfn (4 x 4 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： ATTINY88-MMH.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ATTINY88-MMH 适用于 6 应用s: Compact Industrial Sensor Controller, LED Lighting and Display Control, Low-Cost Consumer Accessory, Compact Instrumentation Interface, Battery-Powered Remote Sensor Node, Educational AVR Control Board.
Compact Industrial Sensor Controller
The ATTINY88-MMH fits compact sensor-conditioning and machine-control modules that require numerous inputs and outputs without a large microcontroller package. Its 28 general-purpose I/O lines can support digital sensors, push-button controls, status indicators, and actuator signals, while 512 bytes of SRAM supplies working space for variables and short task state. The 8 KB flash capacity provides more application-code headroom than the 4 KB available in the ATtiny48 alternative. At the 12 MHz operating class, the AVR core can service timers and serial events predictably, but firmware timing should be checked against worst-case interrupt load. The 28-VQFN 4 x 4 mm footprint saves board area while demanding controlled stencil, paste, reflow, and X-ray inspection processes.
推荐
LED Lighting and Display Control
The ATTINY88-MMH is appropriate for LED lighting modules, status panels, and display controllers where many outputs must be coordinated with user inputs. Its 28 general-purpose I/O lines provide ample connections for LEDs, drivers, switches, and level-shifter control signals, and the two timer/counters with compare modes can support repeatable timing duties. Firmware can use the full 8 KB flash for animation tables, sequencing logic, and communication routines, although actual PWM channels and timer routing must be confirmed in the manufacturer pinout. The 4 x 4 mm VQFN reduces PCB area in densely populated lighting products. Assembly yield should be monitored because exposed-pad soldering and fine-pitch inspection can materially affect production cost and rework.
推荐
Low-Cost Consumer Accessory
The ATTINY88-MMH can serve as the control core in compact consumer accessories that combine a few sensors, buttons, indicators, and serial connectivity. Its 8-bit AVR RISC processor, 12 MHz clock, 8 KB ISP flash, and 64-byte EEPROM are suitable for event-driven state machines, while 512 bytes of SRAM accommodates modest working data. In-system programming simplifies production programming and field updates, while EEPROM can retain configuration such as calibration values or operating mode. Compared with the ATtiny48 alternative, the ATTINY88 doubles available flash and reduces the risk of exhausting code space. Designers should still budget solder mask, copper, and thermal-pad features correctly for reliable VQFN assembly and inspect representative units after reflow.
推荐
Compact Instrumentation Interface
The ATTINY88-MMH is suitable for compact instrumentation interfaces that translate switches, sensor outputs, or external control signals into a managed digital system. Twenty-eight I/O lines allow the controller to supervise several inputs and outputs while the two compare-capable timer/counters assist with periodic sampling or timing tasks. The 8 KB flash capacity can hold command handling, calibration support, communication routines, and fault logic, while EEPROM preserves small parameter sets between power cycles. The 12 MHz operating class supports responsive firmware, but serial baud-rate tolerance, interrupt latency, and analog channel assignments must be checked against the verified manufacturer documentation. The small VQFN package helps reduce instrument size, yet its exposed pad and fine pitch make assembly capability an important design criterion.
推荐
Battery-Powered Remote Sensor Node
The ATTINY88-MMH can support battery-powered remote sensor nodes where low component count, local nonvolatile storage, and numerous I/O connections are valuable. Its picoPower-oriented AVR architecture, 64-byte EEPROM, and 512 bytes of SRAM suit intermittent sensing and duty-cycled control routines, while the 8 KB flash provides room for protocol handlers and sleep-state logic. The ATTINY48 alternative may be sufficient for tightly constrained code, but its 4 KB flash halves the available program space and could limit feature additions. The controller's 28-VQFN package reduces board area in wearables and distributed monitoring devices. Battery-life calculations must use measured sleep and active currents from the complete datasheet rather than infer consumption from the 12 MHz clock rate alone.
推荐
Educational AVR Control Board
The ATTINY88-MMH is well suited to educational AVR development boards because it combines a 12 MHz 8-bit core, 8 KB ISP flash, 28 I/O lines, EEPROM, and SRAM in a compact 28-VQFN package. Students can connect switches, LEDs, sensors, and serial peripherals while learning embedded C, interrupts, timers, and in-system programming without handling a large pin count. The larger 8 KB flash compared with the 4 KB ATtiny48 provides more room for demonstrations and structured exercises. Because the VQFN footprint is less forgiving than a through-hole development package, breakout-board designers should provide the required exposed-pad land and consider a compatible carrier. Final pin assignments and programming connections must follow the manufacturer package drawing rather than a generic 28-pin mapping.
推荐
推荐产品汇总
工程参考数据： ATTINY88-MMH ——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 | ATTINY48-MMHR | ATTINY48-MMU |
|---|---|---|---|
| Package | 28-VQFN (4x4) | 28-VQFN (4x4) - same package | 28-VQFN (4x4) - same package |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Architecture | 8-bit AVR RISC | 8-bit AVR RISC | 8-bit AVR RISC |
| Maximum Clock Frequency | 12 MHz | 12 MHz | 12 MHz |
| Flash Memory | 8 KB | 4 KB (-50%) | 4 KB (-50%) |
| EEPROM | 64 byte | 64 byte | 64 byte |
| SRAM | 512 byte | 512 byte | 512 byte |
关键差异点
- Twice the flash memory of the identified ATtiny48 candidates （对比 ATTINY48-MMHR)
- Same 28-VQFN format as the identified ATtiny48 candidates （对比 ATTINY48-MMU)
- More program headroom for feature-rich compact control （对比 ATTINY48-MMHR)
设计说明
Implement the 28-VQFN footprint directly from the Microchip ATtiny48/88 package drawing, including the exposed thermal pad, solder-mask opening, and paste pattern. Keep the footprint geometry traceable to the manufacturer drawing rather than a generic 28-VQFN library. Confirm courtyard, component clearance, and the assembler-specific paste-reduction method before release. The 4 x 4 mm package has little room for footprint error, so CAD checks against the current datasheet are essential.
Decouple the ATTINY88-MMH supply with the capacitance and placement required by the manufacturer application guidance, and route the exposed pad as specified rather than treating it as an unconnected mechanical feature. Keep the power and ground planes continuous under the device where the package drawing permits. Because exact voltage-current limits, decoupling values, and ADC accuracy specifications were not included in the verified snippets, those values must be obtained from the manufacturer datasheet before schematic release.
Do not treat the ATtiny48 alternatives as automatic firmware-compatible substitutes. Their 4 KB flash is 50% below the ATTINY88-MMH's 8 KB, so code-size checks, bootloader offsets, vector-table assumptions, and conditional compilation must be reviewed. Also verify all peripheral pins and interrupt assignments against the exact device datasheet. The verified web excerpts do not establish every alternate-function mapping, and a matching package count alone does not guarantee electrical or firmware compatibility.
合规信息
The verified distributor record identifies the device as Green and specifies a NiPdAu terminal finish, but it does not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals compliance.
