F272-BAG-T-TR STMicroelectronics, F272-BAG-T-TR Datasheet - Page 153
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F272-BAG-T-TR
Manufacturer Part Number
F272-BAG-T-TR
Description
MCU 16BIT 256K FLASH 144-TQFP
Manufacturer
STMicroelectronics
Series
ST10r
Datasheet
1.F272-BAGE-T-TR.pdf
(182 pages)
Specifications of F272-BAG-T-TR
Core Processor
ST10
Core Size
16-Bit
Speed
40MHz
Connectivity
ASC, CAN, EBI/EMI, I²C, SSC, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
111
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
20K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 24x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
144-TQFP, 144-VQFP
Processor Series
ST10F27x
Core
ST10
Data Bus Width
16 bit
Data Ram Size
12 KB
Interface Type
ASC, CAN, I2C, SSC
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
111
Number Of Timers
4
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 24 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
No
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
F272-BAG-T-TR
Manufacturer:
STMicroelectronics
Quantity:
10 000
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- Download datasheet (3Mb)
ST10F272B/ST10F272E
24.8.10
Note:
Figure 46. ST10F272 PLL jitter
PLL lock / unlock
During normal operation, if the PLL gets unlocked for any reason, an interrupt request to the
CPU is generated, and the reference clock (oscillator) is automatically disconnected from
the PLL input: in this way, the PLL goes into free-running mode, providing the system with a
backup clock signal (free running frequency F
crystal failure occurrence without risking to go in an undefined configuration: the system is
provided with a clock allowing the execution of the PLL unlock interrupt routine in a safe
mode.
The path between reference clock and PLL input can be restored only by a hardware reset,
or by a bidirectional software or watchdog reset event that forces the RSTIN pin low.
The external RC circuit on RSTIN pin shall be properly sized in order to extend the duration
of the low pulse to grant the PLL gets locked before the level at RSTIN pin is recognized
high: bidirectional reset internally drives RSTIN pin low for just 1024 TCL (definitively not
sufficient to get the PLL locked starting from free-running mode).
T
±5
±4
±3
±2
±1
JIT
0
0
200
16MHz
400
24MHz
N (CPU clock periods)
600
32MHz
free
40MHz
). This feature allows to recover from a
800
1000
Electrical characteristics
1200
64MHz
1400
153/182
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