ST7FLITEU05M6 Datasheet PDF - STMicroelectronics

The ST7ULTRALITE is a member of the ST7 microcontroller family. All ST7 devices are based on a common industry-standard 8-bit core, featuringan enhanced instruction set.
The ST7ULTRALITE features FLASH memory with byte-by-byte In-Circuit Programming (ICP) and In-Application Programming (IAP) capability.
Under software control, the ST7ULTRALITE device can be placed in WAIT, SLOW, or HALT mode, reducing power consumption when the application is in idle or standby state.