ST10F280 STMicroelectronics, ST10F280 Datasheet - Page 161

• Manufacturer Part Number: ST10F280
• Description: MCU 16BIT 512K FLASH MAC 208-PBG
• Manufacturer: STMicroelectronics
• Series: ST10r

Specifications of ST10F280

• Core Processor: ST10
• Core Size: 16-Bit
• Speed: 40MHz
• Connectivity: ASC, CAN, EBI/EMI, SSC
• Peripherals: POR, PWM, WDT
• Number Of I /o: 143
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 18K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 32x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 208-PBGA
• Processor Series: ST10F28x
• Core: ST10
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

The mechanism used to generate the CPU clock is selected during reset by the logic levels on pins
P0.15-13 (P0H.7-5).
Figure 77 : Generation Mechanisms for the CPU Clock
20.4.3 - Clock Generation Modes
The Table 40 associates the combinations of these three bit with the respective clock generation mode.
Table 40 : CPU Frequency Generation
Notes: 1. The external clock input range refers to a CPU clock range of 1...40MHz.
P0H.7 P0H.6 P0H.5 CPU Frequency f
1
1
1
1
0
0
0
0
2. The maximum 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
4. The PLL free-running frequency is from 2 to 10MHz.
1
1
0
0
1
1
0
0
Phase locked loop operation
Direct Clock Drive
Prescaler Operation
f
f
f
f
f
f
XTAL
CPU
XTAL
CPU
XTAL
CPU
1
0
1
0
1
0
1
0
f
f
f
XTAL
XTAL
f
f
f
f
f
XTAL
XTAL
XTAL
XTAL
XTAL
XTAL
x 0.5
x 2.5
x 10
x 4
x 3
x 2
x 5
x 1
CPU
= f
XTAL
x F External Clock Input Range
IL
3.33 to 13.33MHz
and V
2.5 to 10MHz
5 to 20MHz
1 to 40MHz
2 to 80MHz
4 to 16MHz
2 to 8MHz
1 to 4MHz
IH2.
.
TCL
TCL
TCL TCL
TCL TCL
1
Default configuration
Direct drive
CPU clock via prescaler
Notes
2 4
ST10F280
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