The ST7ULTRALITE is a member of the ST7 microcontroller family. All ST7 devices are based on a common industry-standard 8-bit core, featuring an 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.The enhanced instruction set and addressing modes of the ST7 offer both power and flexibility to software developers, enabling the design of highly efficient and compact application code. In addition to standard 8-bit data management, all ST7 microcontrollers feature true bit manipulation, 8×8 unsigned multiplication and indirect addressing modes.
Memories 2K Bytes single voltage Flash Program memory with read-out protection, In-Circuit and In-Application Programming (ICP and IAP). 10K write/erase cycles guaranteed, data retention: 20 years at 55°C 128 bytes RAM 128 bytes data EEPROM. 300K write/erase cycles guaranteed, data retention: 20 years at 55°C
Clock, Reset and Supply Management 3-level low voltage supervisor (LVD) and auxiliary voltage detector (AVD) for safe power-on/off procedures Clock sources: internal trimmable 8MHz RC oscillator, internal low power, low frequency RC oscillator or external clock Five Power Saving Modes: Halt, Auto Wake Up from Halt, Active-Halt, Wait and Slow
Interrupt Management 11 interrupt vectors plus TRAP and RESET 5 external interrupt lines (on 5 vectors)
I/O Ports 5 multifunctional bidirectional I/O lines 1 additional Output line 6 alternate function lines 5 high sink outputs
2 Timers One 8-bit Lite Timer (LT) with prescaler including: watchdog, 1 realtime base and 1 input capture One 12-bit Auto-reload Timer (AT) with output compare function and PWM
A/D Converter 10-bit resolution for 0 to VDD 5 input channels
Instruction Set 8-bit data manipulation 63 basic instructions with illegal opcode detection 17 main addressing modes 8 x 8 unsigned multiply instruction
Development Tools Full hardware/software development package Debug Module
