ST10F272Z2T3 STMicroelectronics, ST10F272Z2T3 Datasheet - Page 110
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
-
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Power reduction modes
21.3.2
21.3.3
110/189
Exiting stand-by mode
After the system has entered the Stand-by Mode, the procedure to exit this mode consists of
a standard Power-on sequence, with the only difference that the RAM is already powered
through V
It is recommended to held the device under RESET (RSTIN pin forced low) until external
V
device is maintained under reset by the internal low voltage detector circuit (implemented
inside the main voltage regulator) till the internal V
is no warranty that the device stays under reset status if RSTIN is at high level during
power ramp up. So, it is important the external hardware is able to guarantee a stable
ground level on RSTIN along the power-on phase, without any temporary glitch.
The external hardware shall be responsible to drive low the RSTIN pin until the V
stable, even though the internal LVD is active.
Once the internal Reset signal goes low, the RAM (still frozen) power supply is switched to
the main V
At this time, everything becomes stable, and the execution of the initialization routines can
start: XRAM2EN bit can be set, enabling the RAM.
Real-time clock and stand-by mode
When Stand-by mode is entered (turning off the main supply V
counting can be maintained running in case the on-chip 32 kHz oscillator is used to provide
the reference to the counter. This is not possible if the main oscillator is used as reference
for the counter: Being the main oscillator powered by V
oscillator is stopped.
DD
voltage pin is stable. Even though, at the very beginning of the power-on phase, the
Warning:
18SB
18
.
internal reference (derived from V
During power-off phase, it is important that the external
hardware maintains a stable ground level on RSTIN pin,
without any glitch, in order to avoid spurious exiting from
reset status with unstable power supply.
STBY
18
becomes higher than about 1.0V, there
pin external voltage).
DD
, once this is switched off, the
DD
), the Real-Time Clock
ST10F272Z2
DD
is
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