ST10F269Z2 STMicroelectronics, ST10F269Z2 Datasheet - Page 148

• Manufacturer Part Number: ST10F269Z2
• Description: 16-bit MCU
• Manufacturer: STMicroelectronics

Specifications of ST10F269Z2

• Single Voltage Supply: 5V ±10% (EMBEDDED REGULATOR FOR 2.7 or 3.3 V CORE SUPPLY).
• Temperature Ranges: -40 +125 °C / -40 to 85 °C

21.4.3 - Clock Generation Modes
The Table 44 associates the combinations of these three bits with the respective clock generation mode.
Table 44 : CPU Frequency Generation (PQFP144 devices)
Notes: 1. The external clock input range refers to a CPU clock range of 1...40MHz.
.
Table 45 : CPU Frequency Generation (TQFP144 devices)
Notes: 1. The external clock input range refers to a CPU clock range of 1...32MHz.
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P0H.7 P0H.6 P0H.5 CPU Frequency f
P0H.7 P0H.6 P0H.5 CPU Frequency f
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
2. The maximum input frequency depends on the duty cycle of the external clock signal.
3. The maximum input frequency is 25MHz when using an external crystal with the internal oscillator; providing that internal serial
resistance of the crystal is less than 40 . However, higher frequencies can be applied with an external clock source on pin XTAL1,
but in this case, the input clock signal must reach the defined levels V
2. The maximum input frequency depends on the duty cycle of the external clock signal.
3. The maximum input frequency is 32MHz when using an external crystal with the internal oscillator; providing that internal serial
resistance of the crystal is less than 40 . However, higher frequencies can be applied with an external clock source on pin XTAL1,
but in this case, the input clock signal must reach the defined levels V
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
f
f
f
f
f
f
XTAL
XTAL
XTAL
XTAL
XTAL
XTAL
f
f
f
f
f
f
f
f
f
f
XTAL
XTAL
XTAL
XTAL
XTAL
XTAL
XTAL
XTAL
XTAL
XTAL
x 1.5
x 0.5
x 2.5
x 1.5
x 0.5
x 2.5
x 4
x 3
x 2
x 5
x 1
x 4
x 3
x 2
x 5
x 1
CPU
CPU
= f
= f
XTAL
XTAL
x F External Clock Input Range
x F External Clock Input Range
IL
IL
3.33 to 13.33MHz
6.66 to 26.66MHz
3.33 to 10.67MHz
6.67 to 21.33MHz
and V
and V
2.5 to 10MHz
4 to 12.8MHz
2.5 to 8MHz
2 to 6.4MHz
5 to 20MHz
1 to 40MHz
2 to 80MHz
4 to 16MHz
5 to 16MHz
1 to 32MHz
2 to 64MHz
2 to 8MHz
IH2.
IH2.
.
.
1
1
Default configuration
Direct drive
CPU clock via prescaler
Default configuration
Direct drive
CPU clock via prescaler
Notes
Notes
2
2
ST10F269
3
3