MC9S08SE8VTG - S08 8-bit MCU, 8KB Flash, 20MHz, 16-TSSOP | NXP
MPN： MC9S08SE8VTG ⚠ 最後購買機會MC9S08SE8VTG 概覽
A microcontroller (MCU) is a single-chip computer that contains a CPU, memory (Flash/RAM), and peripherals such as timers, ADCs, and communication interfaces. The HCS08 CPU is an enhanced 8-bit core from NXP (formerly Freescale) that upgrades the legacy HC08 instruction set with BGND, DAA, and additional addressing modes while remaining pin/peripheral compatible with older 5V HC08 designs. This places the MC9S08SE8VTG in the hierarchy: 8-bit MCU -> HCS08 family -> S08 sub-family -> general-purpose embedded controller.
Key features include the enhanced S08 central processor, an internal clock with FLL, multiple timers (MTIM/TPM), ADC, SCI/UART, and SPI/I2C interfaces. The wide 2.7V to 5.5V supply range supports 5V industrial systems, while the 14 GPIOs and 16-pin TSSOP footprint suit space-constrained board designs. The integrated FLL provides ±2% accuracy across temperature, reducing the need for an external crystal.
Typical applications include industrial 5V control, appliance control boards, fan/lighting controllers, low-cost sensor hubs, and 5V-replacement of legacy HC08 designs. The S08SE series is pin/peripheral compatible with many older HC08 devices, simplifying legacy migration.
When designing with this device, ensure the ICS (Internal Clock Source) configuration matches your timing budget and use the FLL lock detection before relying on timing-sensitive peripherals. Decouple VDD/VSS with at least 100 nF placed within 5 mm of the pins.
This page synthesizes NXP datasheet data, distributor pricing, drop-in alternative options, and practical design notes not collected on any single manufacturer or distributor page.
直接替換替代品，適用於 MC9S08SE8VTG — 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： MC9S08SE8VTG （相同外形與佔位） — 差異在於 Package, Connectivity, Core Processor, Number of I/O Pins, Peripherals.
MC9S08SE8VTGR
✅ 直接替換📋 參考替代品（不在目錄中）
MC9S08SE4VTG
✅ 直接替換聯絡詢價
查看資料表 →MC9S08SE8VRL
✅ 直接替換聯絡詢價
查看資料表 →MC9S08SH8MTG
✅ 直接替換聯絡詢價
查看資料表 →MC9S08QE4CWJ
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →MC9S08SE8VTG 最大額定值與電氣特性
| Core | HCS08 (enhanced 8-bit) |
| CPU Frequency | 20 MHz max |
| Internal Bus Frequency | 10 MHz |
| Program Memory (Flash) | 8 KB (8K x 8) |
| RAM | 256 B |
| Supply Voltage (VDD) | 2.7 V to 5.5 V |
| I/O Pins | 14 |
| 封裝 | 16-TSSOP |
| 安裝類型 | Surface Mount |
| 工作溫度 | -40C to +105C |
| Timers | MTIM, TPM |
| Communication Interfaces | SCI, SPI, I2C |
| Internal Clock Source | FLL with ICS module |
| MSL 等級 | 1 |
| RoHS 狀態 | Compliant (Pb-free) |
MC9S08SE8VTG 腳位配置
| 腳位 1 | PTB5/TxD — Port B bit 5 / SCI transmit (alt function) |
| 腳位 2 | PTB4/RxD — Port B bit 4 / SCI receive (alt function) |
| 腳位 3 | RESET — External reset input, active low |
| 腳位 4 | BKGD/MS — Background Debug Mode / Mode Select |
| 腳位 5 | PTA7 — Port A bit 7 |
| 腳位 6 | PTA6 — Port A bit 6 |
| 腳位 7 | PTA5/TPMCH1 — Port A bit 5 / TPM channel 1 |
| 腳位 8 | PTA4/TPMCH0 — Port A bit 4 / TPM channel 0 |
| 腳位 9 | VDD — Supply voltage (2.7 V to 5.5 V) |
| 腳位 10 | VSS — Ground |
| 腳位 11 | PTA3/SDA — Port A bit 3 / I2C SDA (alt function) |
| 腳位 12 | PTA2/SCL — Port A bit 2 / I2C SCL (alt function) |
| 腳位 13 | PTA1/MISO — Port A bit 1 / SPI MISO (alt function) |
| 腳位 14 | PTA0/MOSI — Port A bit 0 / SPI MOSI (alt function) |
| 腳位 15 | PTB3/SPSCK — Port B bit 3 / SPI clock (alt function) |
| 腳位 16 | PTB2/SS — Port B bit 2 / SPI slave select (alt function) |
典型應用
MC9S08SE8VTG 適用於 6 應用s: Industrial 5V Control Modules, Appliance Control Boards, LED Lighting Controllers, Low-Cost Sensor Hubs, Legacy HC08 5V Replacement, Educational / Hobbyist Boards.
Industrial 5V Control Modules
The MC9S08SE8VTG's 2.7V-5.5V supply tolerance and enhanced HCS08 core fit industrial control modules that must operate on legacy 5V power rails with noise from solenoid drivers. Placed as the main MCU on a 16-TSSOP carrier, the SE8VTG can run a small PLC-style control loop in 8KB Flash and 256B RAM while servicing interrupts from digital inputs and SCI communications to a host controller. The wide supply tolerance outperforms many 3.3V-only 8-bit MCUs that would otherwise need a separate LDO.
推薦
Appliance Control Boards
The MC9S08SE8VTG's 8KB Flash, 256B RAM, and integrated timers (MTIM, TPM) match typical 5V appliance control board requirements such as washer sensors, microwave keypads, and HVAC damper drivers. With 14 GPIO pins and a 16-TSSOP footprint, designers can expose ADC channels for thermistor/NTC inputs and use the PWM/timer module for triac-firing or relay control. Compared to 3.3V MCUs the 5V tolerance eliminates the level shifter to legacy 5V encoder/sensor peripherals.
推薦
LED Lighting Controllers
The MC9S08SE8VTG can serve as the central controller in a 5V LED driver board, using its TPM module to drive PWM dimming and SCI to communicate with a wireless module. With 20MHz CPU and 8KB Flash, designers can run DMX-style or 0-10V analog dimming protocols with a soft-start PWM ramp in firmware. The 16-TSSOP package keeps the BOM small enough for retrofit lamp designs.
推薦
Low-Cost Sensor Hubs
Sensor hubs converting analog/digital inputs to a host UART can be built around the MC9S08SE8VTG's ADC, SCI and I2C peripherals within an 8KB Flash budget. The 14 GPIOs provide enough pins for multiple analog sensor channels plus I2C/SPI to a digital sensor cluster. The 5V tolerance simplifies interface to many industrial analog sensors, eliminating the need for a separate analog supply rail.
推薦
Legacy HC08 5V Replacement
The MC9S08SE8VTG provides a direct performance upgrade for legacy Freescale HC08 designs that need modern toolchain support while preserving 5V operation. Engineers can re-compile HC08 source for the HCS08 core (BGND, DAA, added addressing modes) without changing the PCB layout, taking advantage of the same pinout and peripheral set plus the FLL internal clock that avoids many external crystals used in HC08 designs.
推薦
Educational / Hobbyist Boards
The MC9S08SE8VTG is well-suited for educational 8-bit MCU projects because the S08SE family is supported by NXP MCUXpresso and the legacy CodeWarrior IDE, plus BDM programming tools are inexpensive. Students can exercise Flash programming, timers, ADC, and I2C communications in 8KB of code space without the bootstrap complexity of 32-bit ARM parts.
推薦
推薦產品摘要
工程參考資料，適用於 MC9S08SE8VTG — 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 | MC9S08SE8VTGR | MC9S08SE4VTG | MC9S08SE8VRL | MC9S08SH8MTG | MC9S08QE4CWJ |
|---|---|---|---|---|---|---|
| Package | 16-TSSOP (TG) | 16-TSSOP - same | 16-TSSOP - same | 16-TSSOP - same | 16-TSSOP - same | 20-TSSOP - DIFFERENT |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Program Memory (Flash) | 8 KB | 8 KB | 4 KB (-50%) | 8 KB | 8 KB | 4 KB (-50%) |
| CPU Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| RAM | 256 B | 256 B | 256 B | 256 B | 512 B (+100%) | 256 B |
| I/O Pins | 14 | 14 | 14 | 14 | 14 | 12 (-14%) |
| 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 | 1.8 V to 3.6 V (3.3V only) |
| Core Family | HCS08 (S08SE) | HCS08 (S08SE) | HCS08 (S08SE) | HCS08 (S08SE) | HCS08 (S08SH) | HCS08 (S08QE) |
| Lifecycle Status | Last Time Buy (EOL 2024) | Last Time Buy (EOL 2024) | Last Time Buy (EOL 2024) | Last Time Buy (EOL 2024) | Last Time Buy (EOL 2024) | Active |
主要差異化特點
- 5V tolerance with enhanced HCS08 core (對比MC9S08QE4CWJ)
- Pin/peripheral-compatible 5V upgrade for legacy HC08 (對比MC9S08SH8MTG)
- 8KB Flash for modest control firmware (對比MC9S08SE4VTG)
設計說明
Decouple VDD (pin 9) and VSS (pin 10) with a 100 nF X7R ceramic capacitor placed within 5 mm of the MCU. The S08SE8 family draws peak currents near 25 mA at 20 MHz; for motor or relay co-board designs add a 1-10 uF tantalum/poly bulk cap across the MCU supply to suppress relay-induced dips that could spuriously trigger reset.
Place the 6-pin BDM header (BKGD, RESET, VDD, VSS, +optional) at the board edge to leave room for clip-on programming tools. Route BKGD/MS with a short trace (< 50 mm) and avoid running it parallel to noisy digital lines; pull-up the RESET line to VDD through 10 kohms for stable boot. If the board lacks an external crystal, route the XOSC pins as NC; otherwise keep the crystal within 5 mm of XOSC1/XOSC2 to minimize stray capacitance.
Estimated: at 20 MHz the S08SE core is rated for 2.7 V minimum; below 2.7 V the FLL can lose lock and CPU timing will drift. Do not program the internal clock trim after reset without enabling FLL mode, and always verify FLL lock via ICSC1/ICSC2 registers before relying on serial baud rates. Avoid toggling BKGD/MS during power-up; this can put the part in a secured mode that requires mass-erase to recover.
At 20 MHz and 5 V supply, the typical core supply current is roughly 6 mA; peak GPIO toggling can double this. The 16-TSSOP package dissipates ~300 mW comfortably on a standard 2 oz 1-inch-square copper pour. For closed enclosures without airflow, verify junction temperature vs ambient stays inside the -40C to +105C industrial rating; a top-side copper heat-spreader is recommended if the device sits next to MOSFETs or relays.
合規資訊
Industrial-grade -40C to +105C (VTG suffix). NXP/Freescale S08SE family is Pb-free and RoHS/REACH-compliant per the NXP product page environmental section. No AEC-Q100 automotive qualification.