ST7FOXK1 STMicroelectronics, ST7FOXK1 Datasheet - Page 121

• 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
Note:
A minimum of four falling edges of the CPU clock must occur between two consecutive
active edges of the external clock; thus the external clock frequency must be less than a
quarter of the CPU clock frequency.
Figure 57. Counter timing diagram, internal clock divided by 2
Figure 58. Counter timing diagram, internal clock divided by 4
Figure 59. Counter timing diagram, internal clock divided by 8
The device is in reset state when the internal reset signal is high, when it is low the device is
running.
Timer overflow flag (TOF)
Timer overflow flag (TOF)
Timer overflow flag (TOF)
Counter register
Counter register
Internal reset
Counter register
Timer clock
Internal reset
CPU clock
Internal reset
Timer clock
CPU clock
CPU clock
Timer clock
FFFC
FFFC
FFFD FFFE
FFFD
FFFF
FFFD
0000
0000
0001
0002
On-chip peripherals
0001
0003
0000
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