STM8AL3188TCY - 8-bit Ultra-Low-Power MCU 64KB Flash | STMicroelectronics
部品番号: STM8AL3188TCY ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $4.32 | $4.32 |
| 10 | $3.89 | $38.90 |
| 100 | $3.46 | $346.00 |
| 500 | $3.11 | $1,555.00 |
| 1,000 | $2.77 | $2,770.00 |
STM8AL3188TCY 概要
An 8-bit microcontroller (MCU) is a single-chip computer containing a processor core, memory, and programmable input/output peripherals. The STM8AL3188TCY belongs to the STM8 family, which is a line of 8-bit MCUs known for their cost-effectiveness and low power consumption. In the hierarchy of embedded systems, an MCU is a type of integrated circuit that serves as the brain of a device, executing firmware to control sensors, actuators, and communication interfaces. The STM8AL series specifically targets applications requiring long battery life, such as portable medical devices, smart meters, and wireless sensor nodes.
Key features of the STM8AL3188TCY include an ultra-low-power RTC with automatic wake-up, a 12-bit ADC with up to 25 channels, two comparators, and multiple communication interfaces (SPI, I2C, UART). It also integrates a low-power LCD driver supporting up to 8x40 segments, making it suitable for display-equipped portable devices. The MCU operates at up to 16 MHz, providing a balance between processing power and energy efficiency.
Technically, the STM8AL3188TCY is built on a high-density Flash process, offering 64 KB of program memory and 2 KB of true EEPROM for data storage. The core is an 8-bit CISC architecture with a 3-stage pipeline, achieving 16 MIPS at 16 MHz. The device includes a flexible clock management system with internal and external oscillators, and a low-power mode that reduces current consumption to as low as 0.35 µA in Halt mode with RTC running. This makes it ideal for applications where power efficiency is critical.
Typical applications include smart meters (gas, water, and electricity), portable medical devices like glucose meters and pulse oximeters, wireless sensor networks, and industrial monitoring systems. The ultra-low-power RTC and LCD driver make it particularly suitable for battery-powered devices that require timekeeping and display functionality.
When designing with this MCU, careful attention should be paid to the power supply decoupling and the selection of low-power modes to maximize battery life. The device supports a wide operating temperature range of -40°C to +85°C, ensuring reliability in harsh environments.
ドロップイン代替品: STM8AL3188TCY — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: STM8AL3188TCY （同一形状・フットプリント） — 相違点: Communication Interfaces, Core, Flash Memory, Low-Power Modes, Package.
クイック比較ツール — 並列比較する代替部品を選択:
STM8AL3L88TCY
✅ ドロップイン✓ 在庫あり
$1.85 / 個
データシートを見る →S9KEAZN64ACLH
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
STM8AL3188TCY 最大定格＆電気的特性
| Core | STM8 8-bit CISC |
| 最大クロック周波数 | 16 MHz |
| Flash Memory | 64 KB (64K x 8) |
| RAM Size | 4 KB |
| EEPROM Size | 2 KB |
| Number of I/O Pins | 41 |
| Supply Voltage Range | 1.8 V to 3.6 V |
| ADC Resolution | 12-bit |
| Number of ADC Channels | 25 |
| Communication Interfaces | SPI, I2C, UART |
| LCD Driver | 8x40 segments |
| Low-Power Modes | Halt, Active-Halt, Wait |
| 動作温度範囲 | -40°C to +85°C |
| パッケージ | 48-LQFP (7x7 mm) |
| 実装タイプ | Surface Mount |
| Automotive Qualification | AEC-Q100 |
STM8AL3188TCY ピン構成
| ピン 1 | VSS — Ground |
| ピン 2 | VDD — Power supply |
| ピン 3 | PA0 — General purpose I/O / ADC input |
| ピン 4 | PA1 — General purpose I/O / ADC input |
| ピン 5 | PA2 — General purpose I/O / ADC input |
| ピン 6 | PA3 — General purpose I/O / ADC input |
| ピン 7 | NRST — Reset (active low) |
| ピン 8 | VSS — Ground |
| ピン 9 | VDD — Power supply |
| ピン 10 | PB0 — General purpose I/O / SPI clock |
| ピン 11 | PB1 — General purpose I/O / SPI master out |
| ピン 12 | PB2 — General purpose I/O / SPI master in |
| ピン 13 | PB3 — General purpose I/O / SPI chip select |
| ピン 14 | PB4 — General purpose I/O / I2C clock |
| ピン 15 | PB5 — General purpose I/O / I2C data |
| ピン 16 | PB6 — General purpose I/O / UART TX |
| ピン 17 | PB7 — General purpose I/O / UART RX |
| ピン 18 | VSS — Ground |
| ピン 19 | VDD — Power supply |
| ピン 20 | PC0 — General purpose I/O / ADC input |
| ピン 21 | PC1 — General purpose I/O / ADC input |
| ピン 22 | PC2 — General purpose I/O / ADC input |
| ピン 23 | PC3 — General purpose I/O / ADC input |
| ピン 24 | PC4 — General purpose I/O / ADC input |
| ピン 25 | PC5 — General purpose I/O / ADC input |
| ピン 26 | PC6 — General purpose I/O / ADC input |
| ピン 27 | PC7 — General purpose I/O / ADC input |
| ピン 28 | VSS — Ground |
| ピン 29 | VDD — Power supply |
| ピン 30 | PD0 — General purpose I/O / LCD segment |
| ピン 31 | PD1 — General purpose I/O / LCD segment |
| ピン 32 | PD2 — General purpose I/O / LCD segment |
| ピン 33 | PD3 — General purpose I/O / LCD segment |
| ピン 34 | PD4 — General purpose I/O / LCD segment |
| ピン 35 | PD5 — General purpose I/O / LCD segment |
| ピン 36 | PD6 — General purpose I/O / LCD segment |
| ピン 37 | PD7 — General purpose I/O / LCD segment |
| ピン 38 | VSS — Ground |
| ピン 39 | VDD — Power supply |
| ピン 40 | PE0 — General purpose I/O / LCD segment |
| ピン 41 | PE1 — General purpose I/O / LCD segment |
| ピン 42 | PE2 — General purpose I/O / LCD segment |
| ピン 43 | PE3 — General purpose I/O / LCD segment |
| ピン 44 | PE4 — General purpose I/O / LCD segment |
| ピン 45 | PE5 — General purpose I/O / LCD segment |
| ピン 46 | PE6 — General purpose I/O / LCD segment |
| ピン 47 | PE7 — General purpose I/O / LCD segment |
| ピン 48 | VDD — Power supply |
主な用途
STM8AL3188TCY の用途: 6 件s: Smart Meters, Portable Medical Devices, Wireless Sensor Networks, Automotive Body Electronics, Industrial Monitoring, Battery-Powered Displays.
Smart Meters
The STM8AL3188TCY is ideal for smart gas, water, and electricity meters due to its ultra-low-power modes and integrated LCD driver. In a typical smart meter, the MCU wakes periodically from Halt mode to read sensors, process data, and update the display, consuming only 0.35 µA in standby. The 12-bit ADC accurately measures flow or consumption, while the UART interface communicates with a wireless module for remote data collection. The wide operating temperature range ensures reliable operation in outdoor environments.
おすすめ
Portable Medical Devices
The STM8AL3188TCY is well-suited for portable medical devices like glucose meters and pulse oximeters. Its low-power Halt mode extends battery life, critical for devices that must operate for months on a coin cell. The 12-bit ADC provides precise readings from biosensors, while the I2C interface connects to external sensor ICs. The LCD driver enables a compact display for patient readings. The AEC-Q100 qualification ensures reliability, though medical certification may require additional testing.
おすすめ
Wireless Sensor Networks
The STM8AL3188TCY is an excellent choice for wireless sensor nodes in industrial and environmental monitoring. Its ultra-low-power modes allow battery-powered operation for years. The MCU collects data from various sensors via SPI or I2C, processes it locally, and transmits via a connected radio module. The 16 MHz clock provides sufficient processing power for data aggregation and protocol handling. The small 48-pin LQFP package fits compact node designs.
おすすめ
Automotive Body Electronics
The STM8AL3188TCY is AEC-Q100 qualified, making it suitable for automotive body electronics such as window lifters, seat controllers, and lighting modules. Its 16 MHz core handles real-time control tasks, while the LIN interface (via UART) enables communication with the vehicle network. The wide operating temperature range (-40°C to +85°C) ensures reliable operation in harsh automotive environments. The low-power modes help reduce quiescent current draw when the vehicle is off.
おすすめ
Industrial Monitoring
The STM8AL3188TCY is well-suited for industrial monitoring systems that track equipment status, environmental conditions, and process parameters. Its multiple communication interfaces (SPI, I2C, UART) allow connection to a variety of industrial sensors and actuators. The 12-bit ADC provides accurate analog measurements, while the low-power modes enable battery-backed operation in remote locations. The robust design and wide temperature range ensure reliable performance in factory environments.
おすすめ
Battery-Powered Displays
The STM8AL3188TCY is ideal for battery-powered devices with displays, such as digital thermometers, hygrometers, and portable instruments. The integrated LCD driver supports up to 8x40 segments, eliminating the need for an external display driver IC. The ultra-low-power Halt mode with RTC running allows the device to maintain timekeeping and periodically update the display while consuming minimal current. This makes it perfect for devices that must operate for years on a single battery.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: STM8AL3188TCY — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | STM8AL3L88TCY | STM8AL3188TAY | S9KEAZN64ACLH |
|---|---|---|---|---|
| Package | 48-LQFP (7x7) | 48-LQFP (7x7) - same | 64-LQFP (10x10) - different | 48-LQFP (7x7) - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | NXP Semiconductors |
| Core | STM8 8-bit CISC | STM8 8-bit CISC | STM8 8-bit CISC | ARM Cortex-M0+ |
| Maximum Clock Frequency | 16 MHz | 16 MHz | 16 MHz | 48 MHz |
| Flash Memory | 64 KB | 32 KB | 64 KB | 64 KB |
| RAM Size | 4 KB | 2 KB | 4 KB | 8 KB |
| EEPROM Size | 2 KB | 1 KB | 2 KB | 0 KB (simulated EEPROM) |
| ADC Resolution | 12-bit | 12-bit | 12-bit | 12-bit |
| Automotive Qualification | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 |
主な差別化要因
- Integrated LCD driver supporting up to 8x40 segments （vs S9KEAZN64ACLH)
- True EEPROM for data storage （vs S9KEAZN64ACLH)
- Ultra-low-power Halt mode with 0.35 µA current （vs STM8AL3L88TCY)
設計ノート
Decouple the VDD pins with a 100 nF ceramic capacitor placed as close to each pin as possible, and a 4.7 µF bulk capacitor near the main power entry. The STM8AL3188TCY operates from 1.8V to 3.6V, so ensure the supply voltage stays within this range during transients. In low-power applications, use the Halt mode with RTC running to achieve 0.35 µA current consumption, but ensure the RTC clock source is stable.
For the 48-pin LQFP package, use a 4-layer PCB with a solid ground plane beneath the MCU. Route high-speed signals (SPI, I2C) away from the crystal oscillator and analog inputs to minimize noise coupling. The exposed pad (if present) should be connected to ground with multiple vias for thermal and electrical performance. Follow ST's layout guidelines in the datasheet for optimal EMC performance.
Ensure the NRST pin is properly pulled up with a 10 kΩ resistor and a 100 nF capacitor to ground to prevent spurious resets. When using the ADC, configure the sampling time appropriately for the source impedance of the sensor. Do not leave unused I/O pins floating; configure them as outputs or enable internal pull-ups to reduce leakage current and improve EMC.
コンプライアンス情報
AEC-Q100 qualified for automotive applications. RoHS and REACH compliant per STMicroelectronics product page.
