ST10F272Z2Q3 STMicroelectronics, ST10F272Z2Q3 Datasheet - Page 81
ST10F272Z2Q3
Manufacturer Part Number
ST10F272Z2Q3
Description
MCU 16BIT 256KB FLASH 144-PQFP
Manufacturer
STMicroelectronics
Series
ST10r
Datasheet
1.ST10F272Z2Q3.pdf
(189 pages)
Specifications of ST10F272Z2Q3
Core Processor
ST10
Core Size
16-Bit
Speed
64MHz
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-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Other names
497-5579
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ST10F272Z2Q3
Manufacturer:
E-CMOS
Quantity:
10 000
Company:
Part Number:
ST10F272Z2Q3
Manufacturer:
STMicroelectronics
Quantity:
10 000
- Current page: 81 of 189
- Download datasheet (4Mb)
ST10F272Z2
20
20.1
System reset
System reset initializes the MCU in a predefined state. There are six ways to activate a reset
state. The system start-up configuration is different for each case as shown in
Table 49.
1)
2)
3)
Input filter
On RSTIN input pin an on-chip RC filter is implemented. It is sized to filter all the spikes
shorter than 50ns. On the other side, a valid pulse shall be longer than 500ns to grant that
ST10 recognizes a reset command. In between 50ns and 500ns a pulse can either be
filtered or recognized as valid, depending on the operating conditions and process
variations.
For this reason all minimum durations mentioned in this Chapter for the different kind of
reset events shall be carefully evaluated taking into account of the above requirements.
In particular, for Short Hardware Reset, where only 4 TCL is specified as minimum input
reset pulse duration, the operating frequency is a key factor. Examples:
●
●
Power-on reset
Asynchronous Hardware reset
Synchronous Long Hardware
reset
Synchronous Short Hardware
reset
Watchdog Timer reset
Software reset
RSTIN pulse should be longer than 500ns (Filter) and than settling time for configuration of Port0.
See next
The RPD status has no influence unless Bidirectional Reset is activated (bit BDRSTEN in SYSCON): RPD
low inhibits the Bidirectional reset on SW and WDT reset events, that is RSTIN is not activated (refer to
Sections 20.4,
For a CPU clock of 64 MHz, 4 TCL is 31.25 ns, so it would be filtered. In this case the
minimum becomes the one imposed by the filter (that is 500 ns).
For a CPU clock of 4 MHz, 4 TCL is 500 ns. In this case the minimum from the formula
is coherent with the limit imposed by the filter.
Reset Source
Section 20.1
Reset event definition
20.5
and 20.6).
for more details on minimum reset pulse duration.
SHWR
WDTR
PONR
LHWR
SWR
Flag
Status
RPD
High
High
Low
Low
3)
3)
Power-on
t
t
500ns)
t
t
500ns)
WDT overflow
SRST instruction execution
RSTIN
RSTIN
RSTIN
RSTIN
>
> max(4 TCL, 500ns)
> (1032 + 12) TCL + max(4 TCL,
≤ (1032 + 12) TCL + max(4 TCL,
1)
Conditions
System reset
Table
49.
81/189
Related parts for ST10F272Z2Q3
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
STMicroelectronics [RIPPLE-CARRY BINARY COUNTER/DIVIDERS]
Manufacturer:
STMicroelectronics
Datasheet:
Part Number:
Description:
STMicroelectronics [LIQUID-CRYSTAL DISPLAY DRIVERS]
Manufacturer:
STMicroelectronics
Datasheet:
Part Number:
Description:
BOARD EVAL FOR MEMS SENSORS
Manufacturer:
STMicroelectronics
Datasheet:
Part Number:
Description:
NPN TRANSISTOR POWER MODULE
Manufacturer:
STMicroelectronics
Datasheet:
Part Number:
Description:
TURBOSWITCH ULTRA-FAST HIGH VOLTAGE DIODE
Manufacturer:
STMicroelectronics
Datasheet:
Part Number:
Description:
Manufacturer:
STMicroelectronics
Datasheet:
Part Number:
Description:
DIODE / SCR MODULE
Manufacturer:
STMicroelectronics
Datasheet:
Part Number:
Description:
DIODE / SCR MODULE
Manufacturer:
STMicroelectronics
Datasheet:
Part Number:
Description:
Search -----> STE16N100
Manufacturer:
STMicroelectronics
Datasheet:
Part Number:
Description:
Search ---> STE53NA50
Manufacturer:
STMicroelectronics
Datasheet:
Part Number:
Description:
NPN Transistor Power Module
Manufacturer:
STMicroelectronics
Datasheet: