ST10F272Z2T3 STMicroelectronics, ST10F272Z2T3 Datasheet - Page 132
![MCU 16BIT 256KBIT FLASH 144-TQFP](/photos/12/15/121543/497-144-tqfp_series_sml.jpg)
ST10F272Z2T3
Manufacturer Part Number
ST10F272Z2T3
Description
MCU 16BIT 256KBIT FLASH 144-TQFP
Manufacturer
STMicroelectronics
Series
ST10r
Datasheet
1.ST10F272Z2Q3.pdf
(189 pages)
Specifications of ST10F272Z2T3
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
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
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Part Number:
ST10F272Z2T3
Manufacturer:
STMicroelectronics
Quantity:
10 000
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Known limitations
24.3
132/189
Transmission request disabled (C-CAN module)
Description
The transmission request of a message object may remain disabled (even if the host
immediately enables it again) in the following situations:
1.
2.
Reading the transmission request bit of this message object does not show that the
transmission request is disabled. This only happens when this message object is the only
one with a pending transmission request.
If the transmission request is blocked in the disabled state, it will be re-enabled by the first
activity detected on the CAN bus or by setting the transmission request of any other
message object.
The other message objects are not affected by this phenomenon.
Workaround
It is usually not necessary to disable the transmission request of a message object. If the
message object is to be used for another message, it is sufficient to prepare the new content
for this message object in the CPU interface register (Identifier, DLC, Data, with TxRqst and
NewDat [optionally TxIE] bits) and to transfer this content into the message object. The new
content is transmitted at the next opportunity. It is not altered by a possibly ongoing
transmission of the previous content of the same message object.
if the host disables the pending transmission request of the lowest-priority message
object (number 32 by default) in the short time window during which the message
handler state machine prepares the transmission of the message
if the transmission has not started.
ST10F272Z2
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