MC9S08SH4MTJ

Product Overview

The MC9S08SH4MTJ is an NXP USA Inc. 8-bit S08 microcontroller in a 20-TSSOP surface-mount package. It operates from a 2.7 V to 5.5 V supply and includes an internal oscillator. The device provides 4 KB (4K x 8) of FLASH program memory, 256 x 8 RAM, and 17 I/O pins. On-chip connectivity includes I2C, LINbus, SCI, and SPI, while peripherals include low-voltage detection, power-on reset, pulse-width modulation, and a watchdog timer. A 12-channel, 10-bit analog-to-digital converter supports mixed-signal input tasks.

Key Features

• 8-bit S08 core with 40 MHz speed
• 4 KB (4K x 8) FLASH program memory and 256 x 8 RAM
• 17 I/O pins for digital control and sensing
• I2C, LINbus, SCI, and SPI serial communication interfaces
• 12-channel, 10-bit analog-to-digital converter
• PWM, low-voltage detection, power-on reset, and watchdog timer
• 2.7 V to 5.5 V operating supply range
• -40°C to 125°C ambient operating temperature range
• Internal oscillator and 20-TSSOP surface-mount package

Applications

• Embedded control systems that combine analog sensor inputs with digital outputs
• Compact controller boards using I2C, SPI, SCI, or LINbus communication
• PWM output generation for control applications within the specified supply and temperature limits
• Microcontroller designs requiring mixed-signal conversion and on-chip timing peripherals

Design & Procurement Notes

When selecting the MC9S08SH4MTJ for a design, consider the 4 KB FLASH and 256 x 8 RAM limits, as they constrain program size and data storage. The 17 I/O pins, 12 ADC channels, and four serial interfaces define the available pin and peripheral budget. The 2.7 V to 5.5 V supply range should be checked against the system power architecture, and the -40°C to 125°C ambient range should be verified against the intended operating environment. Because the package is a 20-TSSOP surface-mount device, PCB land pattern and mechanical clearance must accommodate the 4.40 mm width. The internal oscillator simplifies clocking, but timing-sensitive designs should still evaluate application requirements against the specified 40 MHz speed.