ST7FOXK1 STMicroelectronics, ST7FOXK1 Datasheet - Page 61

• Manufacturer Part Number: ST7FOXK1
• Description: Low cost flash 8bit micro
• Manufacturer: STMicroelectronics

Specifications of ST7FOXK1

• 4 To 8 Kbytes Single Voltage Extended Flash (xflash) Program Memory With Read-out Protection In-circuit Programming And In-application Programming (icp And Iap) Endurance: 1K write/erase cycles guaranteed Data retention
• Clock Sources: Internal trimmable 8 MHz RC oscillator, auto wakeup internal low power - low frequency oscillator, crystal/ceramic resonator or external clock
• Five Power Saving Modes: Halt, Active-Halt, Auto Wakeup from Halt, Wait and Slow
• A/d Converter: up to 10 input channels

ST7FOXF1, ST7FOXK1, ST7FOXK2
8
8.1
Power saving modes
Introduction
To give a large measure of flexibility to the application in terms of power consumption, four
main power saving modes are implemented in the ST7 (see
After a reset the normal operating mode is selected by default (Run mode). This mode
drives the device (CPU and embedded peripherals) by means of a master clock which is
based on the main oscillator frequency (f
From Run mode, the different power saving modes may be selected by setting the relevant
register bits or by calling the specific ST7 software instruction whose action depends on the
oscillator status.
Figure 22. Power saving mode transitions
Slow
Wait (and Slow-Wait)
Active Halt
Auto wakeup From Halt (AWUFH)
Halt
POWER CONSUMPTION
Active Halt
Slow Wait
OSC
Slow
Wait
Run
Halt
).
Low
High
Figure
22):
Power saving modes
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