STR715FR0T6 STMicroelectronics, STR715FR0T6 Datasheet - Page 68
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STR715FR0T6
Manufacturer Part Number
STR715FR0T6
Description
MCU 32BIT 64KB FLASH 64-LQFP
Manufacturer
STMicroelectronics
Series
STR7r
Datasheet
1.RLINK-ST.pdf
(78 pages)
Specifications of STR715FR0T6
Core Processor
ARM7
Core Size
32-Bit
Speed
66MHz
Connectivity
I²C, HDLC, Smartcard, SPI, UART/USART
Peripherals
PWM, WDT
Number Of I /o
32
Program Memory Size
64KB (64K x 8 + 16K)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 4x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-LQFP
Processor Series
STR715x
Core
ARM7TDMI
Data Bus Width
32 bit
Data Ram Size
16 KB
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
32
Number Of Timers
4
Operating Supply Voltage
3 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWARM, EWARM-BL, MCBSTR7, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
STR710-SK/HIT, STR711-SK/IAR, STR712-SK/IAR, STR71X-SK/RAIS, STX-PRO/RAIS, STX-RLINK, STR79-RVDK/CPP, STR79-RVDK, STR79-RVDK/UPG
Minimum Operating Temperature
- 40 C
On-chip Adc
12 bit, 4 Channel
For Use With
MCBSTR7UME - MCBSTR7 + ULINK-ME DEV KIT497-6412 - BOARD EVAL STPM01/STR715FR0MCBSTR7 - BOARD EVAL STM STR71X SERIES
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Other names
497-4888
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
STR715FR0T6
Manufacturer:
SGS
Quantity:
5 166
Company:
Part Number:
STR715FR0T6
Manufacturer:
STMicroelectronics
Quantity:
10 000
Part Number:
STR715FR0T6
Manufacturer:
ST
Quantity:
20 000
Electrical parameters
68/78
Analog power supply and reference pins
The AV
the high and low reference voltages for the conversion.
Separation of the digital and analog power pins allow board designers to improve A/D
performance. Conversion accuracy can be impacted by voltage drops and noise in the event
of heavily loaded or badly decoupled power supply lines
guidelines).
General PCB design guidelines
To obtain best results, some general design and layout rules should be followed when
designing the application PCB to shield the noise-sensitive, analog physical interface from
noise-generating CMOS logic signals.
●
●
●
●
Software filtering of spurious conversion results
For EMC performance reasons, it is recommended to filter A/D conversion outliers using
software filtering techniques.
Figure 39. Power supply filtering
Use separate digital and analog planes. The analog ground plane should be connected
to the digital ground plane via a single point on the PCB.
Filter power to the analog power planes. It is recommended to connect capacitors, with
good high frequency characteristics, between the power and ground lines, placing
0.1 µF and optionally, if needed 10 pF capacitors as close as possible to the STR7
power supply pins and a 1 to 10 µF capacitor close to the power source (see
Figure
The analog and digital power supplies should be connected in a star network. Do not
use a resistor, as AV
resistance would cause a voltage drop and a loss of accuracy.
Properly place components and route the signal traces on the PCB to shield the analog
inputs. Analog signals paths should run over the analog ground plane and be as short
as possible. Isolate analog signals from digital signals that may switch while the analog
inputs are being sampled by the A/D converter. Do not toggle digital outputs near the
A/D input being converted.
DD
and AV
39).
SS
pins are the analog power supply of the A/D converter cell. They act as
DD
is used as a reference voltage by the A/D converter and any
POWER
SUPPLY
SOURCE
V
(3.3V)
33
1 to 10µF
STR7
DIGITAL NOISE
FILTERING
EXTERNAL
NOISE
FILTERING
(see: General PCB design
0.1µF
0.1µF
V
V
AV
AV
SS
33
DD
SS
STR710
STR71xF