ST7LITEU09 STMicroelectronics, ST7LITEU09 Datasheet - Page 68

• Manufacturer Part Number: ST7LITEU09
• Description: ST7ULTRALITE - 8-BIT MCU WITH 2K SINGLE VOLTAGE FLASH MEMORY, ADC, TIMERS
• Manufacturer: STMicroelectronics

Specifications of ST7LITEU09

• 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 Data Eeprom. 300k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55°C
• 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
• One 8-bit Lite Timer (lt) With Prescaler Including: watchdog, 1 realtime base and 1 input capture

On-chip peripherals
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On-chip peripherals
Lite timer (LT)
Introduction
The Lite Timer can be used for general-purpose timing functions. It is based on a free-
running 13-bit upcounter with two software-selectable timebase periods, an 8-bit input
capture register and watchdog function.
Main features
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Real-time clock
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Input capture
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Watchdog
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13-bit upcounter
1 ms or 2 ms timebase period (@ 8 MHz f
Maskable timebase interrupt
8-bit input capture register (LTICR)
Maskable interrupt with wakeup from Halt mode capability
Enabled by hardware or software (configurable by option byte)
Optional reset on HALT instruction (configurable by option byte)
Automatically resets the device unless disable bit is refreshed
Software reset (forced watchdog reset)
Watchdog reset status flag
OSC
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ST7LITEU05 ST7LITEU09