ST10F276-4TR3 STMicroelectronics, ST10F276-4TR3 Datasheet - Page 203

• Manufacturer Part Number: ST10F276-4TR3
• Description: MCU 16BIT 832K FLASH 144-LQFP
• Manufacturer: STMicroelectronics
• Series: ST10r

Specifications of ST10F276-4TR3

• Core Processor: ST10
• Core Size: 16-Bit
• Speed: 48MHz
• Connectivity: ASC, CAN, EBI/EMI, I²C, SSC, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 111
• Program Memory Size: 832KB (832K x 8)
• Program Memory Type: FLASH
• Ram Size: 68K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 24x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

ST10F276E
Note:
23.8.16
Table 102. External clock drive timing
1. The minimum value for the XTAL1 signal period is considered as the theoretical minimum. The real
2. 4-12 MHz is the input frequency range when using an external clock source. 64 MHz can be applied with
3. The input clock signal must reach the defined levels V
Figure 56. External clock drive XTAL1
When Direct Drive is selected, an external clock source can be used to drive XTAL1. The
maximum frequency of the external clock source depends on the duty cycle: When 64 MHz
is used, 50% duty cycle is granted (low phase = high phase = 7.8ns); when for instance
32 MHz is used, a 25% duty cycle can be accepted (minimum phase, high or low, again
equal to 7.8ns).
Memory cycle variables
The tables below use three variables which are derived from the BUSCONx registers and
represent the special characteristics of the programmed memory cycle.
how these variables are computed.
Table 103. Memory cycle variables
t
t
t
t
t
t
t
t
Symbol
OSC
1
2
3
4
A
C
F
minimum value depends on the duty cycle of the input clock signal.
an external clock source only when Direct Drive mode is selected: In this case, the oscillator amplifier is
bypassed so it does not limit the input frequency.
Symbol
SR
SR
SR
SR
SR
XTAL1 period
High time
Low time
Rise time
Fall time
Parameter
ALE extension
Memory cycle time wait states
Memory tri-state time
(3)
(3)
(3)
(3)
(1) (2)
t
1
Description
15.625
Min.
Direct drive
f
6
-
CPU
V
= f
IH2
XTAL
Max.
2
-
-
t
2
t
3
IL2
Direct drive with
and V
f
Min.
83.3
CPU
3
-
prescaler
t
V
OSC
IH2
IL2
= f
TCL x [ALECTL]
2TCL x (15 - [MCTC])
2TCL x (1 - [MTTC])
.
XTAL
Max.
250
2
-
/ 2
Electrical characteristics
f
Min.
83.3
CPU
Values
6
PLL usage
-
Table 103
= f
t
4
XTAL
Max.
250
2
x F
-
describes
203/231
Unit
ns