The IN6053 is an 8-bit microcontroller which is instruction-set compatible with the standard 80C51 series microcontroller.

There is 64K bytes flash memory embedded for application program. The flash can be program by both parallel programming and Serial In-System Programming (ISP) with flash memory lock function for code security.

The device also contains 256 bytes of internal RAM; 1K bytes of Auxiliary RAM; five 8-bit bi-directional I/O ports; three 16-bit timers/counters; full-duplex serial port (UART), Master/Slave I2C bus interface; 4-channel Programmable Counter Array (PCA); master/slave Serial Peripheral Interface (SPI); internal reference voltage; 10-bit 8-channel A/D converter; two 10-bit D/A converters; two analog comparators; Watchdog timer and internal precision oscillator.

These peripherals are all supported by 6-vector interrupt structure with 2 levels of priority.

The device has two power-reduction modes: Idle mode and Power-down mode, both of which are software selectable. Idle mode turns off the processor clock but allows peripherals to continue operating, while Power-down mode stops the system oscillator for minimum power consumption.

The device also includes JTAG interface can be used for On-chip debugging and Programming for Flash and Fuse bytes.