STR755FR2H6 STMicroelectronics, STR755FR2H6 Datasheet - Page 80

• Manufacturer Part Number: STR755FR2H6
• Description: MCU ARM7 32BIT 256K FLSH 64LFBGA
• Manufacturer: STMicroelectronics
• Series: STR7r

Specifications of STR755FR2H6

• Core Processor: ARM7
• Core Size: 32-Bit
• Speed: 60MHz
• Connectivity: I²C, SPI, SSI, SSP, UART/USART
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 38
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LFBGA
• For Use With: MCBSTR750UME - BOARD EVAL MCBSTR750 + ULINK-MEMCBSTR750U - BOARD EVAL MCBSTR750 + ULINK2497-5754 - KIT STARTER IAR STR750497-5753 - KIT STARTER KEIL FOR STR7/STR9497-5752 - KIT STARTER IAR FOR STR7/STR9497-5748 - BOARD EVALUATION FOR STR750XF
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Package characteristics
7.2.2
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Selecting the product temperature range
When ordering the microcontroller, the temperature range is specified in the order code
Table 49: Order codes on page
The following example shows how to calculate the temperature range needed for a given
application.
Assuming the following application conditions:
Using the values obtained in
Figure 50. LQFP100 P
Maximum ambient temperature T
I
with I
This gives: P
Thus: P
–
–
DDmax
For LQFP100, 46°C/W
This is within the range of the suffix 6 version parts (-40 < T
In this case, parts must be ordered at least with the temperature range suffix 6
(see
For BGA64, 58°C/W
This is within the range of the suffix 7 version parts (-40 < T
In this case, parts must be ordered at least with the temperature range suffix 7
(see
OL
=8 mA, V
Dmax
= 8 mA, V
T
Table 49: Order codes on page
T
Table 49: Order codes on page
Jmax
Jmax
INTmax
= 464 mW
DD
= 82° C + (46° C/W x 464 mW) = 82°C + 21°C = 103° C
= 82° C + (58° C/W x 464 mW) = 82°C + 27°C = 109° C
700
600
500
400
300
200
100
OL
0
= 5 V, maximum 20 I/Os used at the same time in output at low level
= 400 mW and P
Dmax
= 0.4 V
Table 48
P
vs T
IOmax
81.
P
INTmax
A
P
Dmax
= 20 x 8 mA x 0.4V = 64 mW
Amax
T
T
Jmax
A
STR750Fxx STR751Fxx STR752Fxx STR755Fxx
= 8 mA x 5 V= 400 mW
IOmax
= 400 mW + 64 mW
(° C)
= 82 °C (measured according to JESD51-2),
is calculated as follows:
81).
81).
64 mW:
Suffix 6
Suffix 7
J
J
< 105° C).
< 125° C).