MC9S08PA16VTG - 8-bit 20MHz S08 MCU, 16KB Flash | NXP
MPN： MC9S08PA16VTG ✗ 停產MC9S08PA16VTG 概覽
What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a single-chip processor with an 8-bit data path, integrated Flash program memory, RAM, and peripherals such as timers, ADCs, and communication interfaces. MCUs sit at the bottom of the embedded computing hierarchy - microcontroller -> embedded controller -> processor -> computing platform - and are commonly used to replace discrete logic in appliances, motor drives, and consumer electronics where deterministic, low-cost control is required. The S08 core is NXP's 8-bit architecture that evolved from the HC08, optimized for low power and motor-control peripherals.
Key features of the MC9S08PA16VTG include 16 KB Flash with in-system programming, hardware EEPROM emulation, a 12-channel 10-bit ADC for analog sensing, two analog comparators, a FlexTimer for motor control PWM, and enhanced ESD/EFT performance designed for harsh industrial environments. The 16-pin TSSOP gives 14 usable I/O pins when using the internal oscillator, while the 5 V I/O tolerance simplifies interfacing to 5 V sensors and actuators without level shifters.
The device integrates an internal clock with FLL stabilization, reducing BOM cost by eliminating an external crystal in many applications. Its peripheral set - PWM, timers, ADC, analog comparator, and on-chip communication - is mapped to specific pins documented in the device datasheet, and the part reuses existing S08 peripherals and development tools (CodeWarrior IDE, S08 Flash programmers, freescale/NXP P&E tools) for migration from earlier S08 designs.
Typical applications include BLDC/PMSM fan and small-motor control, white-goods and appliance control boards, LED lighting controllers, sensor interfaces with on-chip ADC, and low-cost industrial control boards. The 5V-tolerance and EFT/ESD robustness make it especially suitable for white goods where the control board sits near high-voltage switching sections.
A key design consideration is the choice of internal vs. external clock: the internal reference with FLL is sufficient for UART timing at modest baud rates, but designs that need accurate CAN, USB, or high-speed UART timing benefit from an external crystal. Power dissipation in TSSOP-16 at 20 MHz is well below 100 mW and rarely requires thermal analysis.
This page synthesizes distributor pricing, drop-in alternatives within the S08 family, and practical design notes not found in the manufacturer datasheet at a glance.
直接替換替代品，適用於 MC9S08PA16VTG — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： MC9S08PA16VTG （相同外形與佔位） — 差異在於 Package, Program Memory Size, ADC, Operating Temperature, Maximum CPU Frequency.
MC9S08PA16AVTG
✅ 直接替換📋 參考替代品（不在目錄中）
MC9S08PA16VTGE
✅ 直接替換📋 參考替代品（不在目錄中）
MC9S08PA4VTGR
✅ 直接替換聯絡詢價
查看資料表 →MC9S08PT16AVTG
✅ 直接替換📋 參考替代品（不在目錄中）
MC9S08SL16CTJ
✅ 直接替換聯絡詢價
查看資料表 →MC9S08QD4CSC
✅ 直接替換聯絡詢價
查看資料表 →MC9S08PA16VTG 最大額定值與電氣特性
| Core Processor | S08 |
| Core Size | 8-Bit |
| Maximum CPU Speed | 20 MHz |
| Program Memory Size | 16 KB (16K x 8) |
| Program Memory Type | FLASH |
| RAM Size | 2 KB |
| EEPROM Size | 256 bytes |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Number of I/O | 14 |
| Connectivity | I2C, LINbus, SPI, UART/USART |
| Peripherals | LVD, POR, PWM, WDT |
| ADC | 10-bit, multi-channel |
| 工作溫度範圍 | -40C to +105C |
| 封裝 | 16-TSSOP (0.173, 4.40 mm Width) |
| 安裝類型 | Surface Mount |
| 生命週期狀態 | NRND (Not Recommended for New Designs) |
MC9S08PA16VTG 腳位配置
| 腳位 1 | PTB5/TCLK2 — General I/O / Timer channel |
| 腳位 2 | PTB4 — General I/O |
| 腳位 3 | PTA5/IRQ — General I/O / External interrupt request |
| 腳位 4 | PTA4 — General I/O |
| 腳位 5 | PTA3 — General I/O |
| 腳位 6 | PTA2 — General I/O |
| 腳位 7 | PTA1 — General I/O |
| 腳位 8 | PTA0 — General I/O |
| 腳位 9 | VSS — Ground reference |
| 腳位 10 | VDD — Power supply (2.7 V to 5.5 V) |
| 腳位 11 | PTB3 — General I/O |
| 腳位 12 | PTB2 — General I/O |
| 腳位 13 | PTB1 — General I/O |
| 腳位 14 | PTB0 — General I/O |
| 腳位 15 | BKGD/MS — Background debug / Mode select |
| 腳位 16 | RESET — Reset input (active low) |
典型應用
MC9S08PA16VTG 適用於 6 應用s: BLDC and Small Motor Control, White Goods and Appliance Control Boards, LED Lighting Controllers, Sensor Interface Hubs, Small Industrial Control Boards, Automotive Body and Interior Modules.
BLDC and Small Motor Control
The MC9S08PA16VTG's on-chip FlexTimer and 10-bit ADC suit low-cost BLDC and PMSM motor control in fans, small pumps, and appliance drives. Its 2.7V-5.5V range and 5V-tolerant I/O allow direct drive of half-bridge gate drivers from a single rail, while the PWM channels deliver complementary or independent outputs with dead-time insertion. Compared with a discrete analog control board, the integrated MCU closes the current/torque loop in software and eliminates manual potentiometer trimming. When migrating to a new design, the MC9S08PA16AVTG is the active variant for the same TSSOP-16 footprint.
推薦
White Goods and Appliance Control Boards
The MC9S08PA16VTG's enhanced EFT/ESD performance and 5 V operation make it a strong fit for washing machine, dishwasher, and oven control boards where the MCU sits next to high-voltage switching sections. The 14 GPIOs handle relay drives, LED indicators, rotary-encoder user inputs, and UART diagnostic ports. The integrated 10-bit ADC reads NTC temperature sensors directly, while the analog comparator enables zero-crossing detection for triac-driven heaters without an external op-amp. Pin-compatible migration to the MC9S08PA16AVTG preserves existing appliance firmware investment.
推薦
LED Lighting Controllers
The MC9S08PA16VTG drives dimmable LED drivers using its PWM outputs for constant-current control or DMX-style dimming. The 2 KB RAM handles smooth fade transitions in software, while the 10-bit ADC reads ambient light sensors or current-sense amplifiers for closed-loop regulation. UART support allows integration with DALI or 0-10V wall dimmers. Compared with a pure analog driver, the MCU enables programmable curves, scene storage, and remote diagnostics, all within a 16-TSSOP package that fits even compact GU10 form factors.
推薦
Sensor Interface Hubs
The MC9S08PA16VTG acts as a sensor front-end, aggregating temperature, humidity, and motion-sensor data via I2C/SPI and forwarding it over UART or LIN. The integrated 10-bit ADC and analog comparator let it also read analog sensors without an external ADC chip. The 256-byte EEPROM stores calibration and unit ID for traceable sensor modules. The 2.7V-5.5V range means the same MCU serves both 3.3V IoT nodes and legacy 5V industrial sensor boards, simplifying the BOM across product families.
推薦
Small Industrial Control Boards
The MC9S08PA16VTG is used in PLC sub-modules, IO-Link device ends, and small industrial controllers where a rugged 8-bit MCU is preferred for deterministic loop times. Its 5V-tolerant I/O drives 24V-translated industrial rails through external buffers, and the integrated watchdog with separate clock source meets industrial safety standards. LIN-bus support also makes it suitable for industrial sensor/actuator networks where cost dominates over Ethernet connectivity. The pin-compatible MC9S08PA16AVTG preserves mechanical layout while extending lifecycle support.
推薦
Automotive Body and Interior Modules
The MC9S08PA16VTG's LIN-bus connectivity makes it a fit for low-speed automotive body modules like window regulators, seat controllers, and HVAC blend-door actuators where CAN is not required. The 8-bit core and 16 KB Flash provide ample headroom for these tasks at a lower cost than 32-bit alternatives. The 5 V tolerance and robust ESD handling suit the automotive electrical environment, while the integrated ADC reads potentiometer inputs directly. Note: this part is not AEC-Q100 qualified - for AEC-Q100 designs, refer to NXP automotive S08 variants.
推薦
推薦產品摘要
工程參考資料，適用於 MC9S08PA16VTG — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MC9S08PA16AVTG | MC9S08PA16VTGE | MC9S08PA4VTG | MC9S08PT16AVTG | MC9S08SL16CTJ | MC9S08QD4CSC |
|---|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 16-TSSOP | 16-TSSOP - same | 16-TSSOP - same | 16-TSSOP - same | 16-TSSOP - same | 16-TSSOP - same | 16-TSSOP - same |
| Core | S08 8-bit | S08 8-bit | S08 8-bit | S08 8-bit | S08 8-bit (PT) | S08 8-bit (SL) | S08 8-bit (QD) |
| Max CPU Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Flash Memory | 16 KB | 16 KB | 16 KB | 4 KB (-75%) | 16 KB | 16 KB | 4 KB (-75%) |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Lifecycle Status | NRND | Active | NRND | NRND | Active | Active | NRND |
| FlexTimer / Motor Control PWM | Yes | Yes | Yes | Yes | Reduced | Reduced | No |
主要差異化特點
- Active drop-in upgrade exists with same footprint (對比MC9S08PA16AVTG)
- Rich FlexTimer peripheral for motor control (對比MC9S08QD4CSC)
- Same Flash density across multiple family variants (對比MC9S08PT16AVTG)
設計說明
Place a 100 nF decoupling capacitor within 5 mm of the VDD pin, plus a 4.7 uF bulk capacitor on the same rail. This placement handles the S08 core's voltage-noise sensitivity during flash programming bursts. For EFT-robust designs targeting industrial appliance environments, also add a 1 nF X7R bypass directly at the VDD pin per NXP's EFT/ESD application guidance.
The MC9S08PA16VTG's BKGD pin (pin 15) is shared between debug and mode select. Always add a 4.7 kohm pull-up or pull-down to a defined level to prevent accidental mode entry during power-up. Without a defined level on BKGD, the MCU may enter an undefined mode if the pin floats during a brown-out event.
Although the part is NRND and a drop-in active replacement (MC9S08PA16AVTG) exists, do not alter the PCB footprint on existing designs - the VTG and AVTG share identical pinouts, so existing layouts are forward-compatible. Estimated: this enables zero-cost migration from VTG to AVTG without re-spinning the PCB.
Estimated: at 20 MHz and 5 V supply, core current is well below 10 mA, giving power dissipation under 50 mW. The 16-TSSOP thermal resistance of approximately 150 C/W will not cause junction temperature issues even with no copper pours on top layer. Thermal management is rarely needed for this part.
合規資訊
RoHS and lead-free compliance confirmed via NXP product page. AEC-Q100 not qualified for this commercial-grade part - refer to NXP's automotive S08 variants for AEC-Q100 designs. Halogen-free status not explicitly confirmed in the verified web data.
