規格
| 屬性 | 價值 |
| Supplier | NXP USA Inc. |
| Package / Case | Tape & Reel (TR) |
| Series | HC08 |
| Part Status | Obsolete |
| Core Processor | HC08 |
| Core Size | 8-Bit |
| Speed | 8MHz |
| Peripherals | LVD, POR, PWM |
| Number of I/O | 5 |
| Program Memory Size | 4KB (4K x 8) |
| Program Memory Type | FLASH |
| RAM Size | 128 x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V |
| Data Converters | A/D 6x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
概述
Description
MC908QT4ACDWER is an 8‑bit microcontroller from Freescale/NXP in the MC908QT4 QT family. It combines on‑chip flash program memory, RAM, and often EEPROM with a set of integrated peripherals suitable for small embedded tasks. Typical peripherals include timers, ADCs, comparators, a watchdog, and serial interfaces such as SCI, SPI, and I2C. The device targets compact automotive and consumer applications requiring low to mid performance, with support for various supply voltages and low‑power modes. The QT4 family is offered in multiple package options and temperature grades; the ACDWER suffix denotes a specific package/temperature/revision variant. For exact details—memory sizes, pin count, voltage range, clock speed, and peripheral availability—consult the official MC908QT4ACDWER datasheet and user guide from NXP/Freescale.
Features
Here are the typical features of the MC908QT4ACDWER (datasheet details can vary by package/revision):
- 8-bit HC08-based MCU core
- Flash program memory: 4 KB
- RAM: ~128 bytes
- On-chip peripherals: SCI (USART), SPI, I2C
- Timers: PWM-capable timer modules, generally 8-bit/16-bit timer
- Analog: 10-bit ADC (and analog comparators common on QT devices)
- Watchdog timer; multiple low-power sleep modes with fast wake-up
- Interrupt controller with vector-based interrupts
- Operating voltage: ~1.7–3.6 V
- Temperature range: industrial/extended grade as per suffix
- In-system programming and debugging support (ICP/BDM-compatible tools)
- Package options (e.g., small-outline / 28-pin variants)
Note: exact capacities (RAM, ADC channels, etc.) and available packages depend on the specific device revision and packaging. Consult the datasheet for your exact part variant.
- 8-bit HC08-based MCU core
- Flash program memory: 4 KB
- RAM: ~128 bytes
- On-chip peripherals: SCI (USART), SPI, I2C
- Timers: PWM-capable timer modules, generally 8-bit/16-bit timer
- Analog: 10-bit ADC (and analog comparators common on QT devices)
- Watchdog timer; multiple low-power sleep modes with fast wake-up
- Interrupt controller with vector-based interrupts
- Operating voltage: ~1.7–3.6 V
- Temperature range: industrial/extended grade as per suffix
- In-system programming and debugging support (ICP/BDM-compatible tools)
- Package options (e.g., small-outline / 28-pin variants)
Note: exact capacities (RAM, ADC channels, etc.) and available packages depend on the specific device revision and packaging. Consult the datasheet for your exact part variant.
Pinout
- Pin count: 28-pin package
- Function: 8‑bit microcontroller (MC908QT4 series) with on‑chip flash memory (about 4 KB) and RAM, plus integrated peripherals (GPIO, timers, ADC, serial interfaces) for embedded control applications.
- Function: 8‑bit microcontroller (MC908QT4 series) with on‑chip flash memory (about 4 KB) and RAM, plus integrated peripherals (GPIO, timers, ADC, serial interfaces) for embedded control applications.
Manufacturer
- Manufacturer: NXP Semiconductors (current owner). The MC908QT4ACDWER was originally produced by Freescale Semiconductor, a Motorola spin-off; Freescale’s MCU products are now part of NXP after its 2015 acquisition.
- What kind of company: A Dutch multinational semiconductor company that designs and manufactures embedded processors, microcontrollers, sensors, and related electronics for automotive, industrial, and consumer markets.
- What kind of company: A Dutch multinational semiconductor company that designs and manufactures embedded processors, microcontrollers, sensors, and related electronics for automotive, industrial, and consumer markets.
Application
Applications of MC908QT4ACDWER include:
- Automotive body electronics: door modules, lighting, HVAC, window regulators
- Instrument clusters and dashboards
- Remote keyless entry and vehicle security systems
- Sensor interfaces and data acquisition (temperature, pressure, etc.)
- Small motor control and actuator drivers
- Consumer electronics and industrial sensors needing a low-pin, low-cost 8-bit MCU
- Automotive body electronics: door modules, lighting, HVAC, window regulators
- Instrument clusters and dashboards
- Remote keyless entry and vehicle security systems
- Sensor interfaces and data acquisition (temperature, pressure, etc.)
- Small motor control and actuator drivers
- Consumer electronics and industrial sensors needing a low-pin, low-cost 8-bit MCU
Package
64-pin LQFP (Plastic Quad Flat Pack) package.
