STR911FAM42X6 STMicroelectronics, STR911FAM42X6 Datasheet - Page 16
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STR911FAM42X6
Manufacturer Part Number
STR911FAM42X6
Description
MCU 256KB FLASH 96K RAM 80LQFP
Manufacturer
STMicroelectronics
Series
STR9r
Datasheet
1.STEVAL-IFW001V1.pdf
(102 pages)
Specifications of STR911FAM42X6
Core Processor
ARM9
Core Size
32-Bit
Speed
96MHz
Connectivity
CAN, I²C, IrDA, Microwire, SPI, SSI, SSP, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
40
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
96K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 2 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
80-LQFP
Processor Series
STR911x
Core
ARM966E-S
Data Bus Width
16 bit, 32 bit
Data Ram Size
96 KB
Interface Type
CAN, I2C, IrDA, SSP, UART, USB
Maximum Clock Frequency
96 MHz
Number Of Programmable I/os
40
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWARM, EWARM-BL, MCBSTR9, MCBSTR9U, MCBSTR9UME, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
STR9-COMSTICK, STR910-EVAL, STR91X-SK/HIT, STR91X-SK/IAR, STR91X-SK/KEI, STR91X-SK/RAI, STR9-DK/RAIS, STR91X-DK/IAR, STX-PRO/RAIS, STR912-D/RAIS, STR79-RVDK/CPP, STR79-RVDKCPP/9, STR79-RVDK, STR79-RVDK/9, STR9-RVDK/BAS, STR79-RVDK/UPG
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
For Use With
MCBSTR9UME - BOARD EVAL MCBSTR9 + ULINK-MEMCBSTR9U - BOARD EVAL MCBSTR9 + ULINK2MCBSTR9 - BOARD EVAL STM STR9 SERIES497-5067 - BOARD EVAL FOR STR910 FAMILY497-5066 - KIT STARTER KEIL FOR STR910497-5065 - KIT STARTER IAR KICKSTART STR912497-5064 - KIT STARTER FOR STR910 FAMILY497-5046 - KIT TOOL FOR ST7/UPSD/STR7 MCU
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Other names
497-6278
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
STR911FAM42X6
Manufacturer:
ST
Quantity:
320
Company:
Part Number:
STR911FAM42X6
Manufacturer:
STMicroelectronics
Quantity:
10 000
Part Number:
STR911FAM42X6
Manufacturer:
ST
Quantity:
20 000
Functional overview
3.7
3.7.1
3.7.2
16/102
Non-volatile memories
There are two independent 32-bit wide burst Flash memories enabling true read-while-write
operation. The Flash memories are single-voltage erase/program with 20 year minimum
data retention and 100K minimum erase cycles. The primary Flash memory is much larger
than the secondary Flash.
Both Flash memories are blank when devices are shipped from ST. The CPU can boot only
from Flash memory (configurable selection of which Flash bank).
Flash memories are programmed half-word (16 bits) at a time, but are erased by sector or
by full array.
Primary Flash memory
Using the STR91xFA device configuration software tool and 3rd party Integrated Developer
Environments, it is possible to specify that the primary Flash memory is the default memory
from which the CPU boots at reset, or otherwise specify that the secondary Flash memory is
the default boot memory. This choice of boot memory is non-volatile and stored in a location
that can be programmed and changed only by JTAG In-System Programming. See
Section 6: Memory
The primary Flash memory has equal length 64K byte sectors. See
sectors per device type.
Table 3.
Secondary Flash memory
The smaller of the two Flash memories can be used to implement a bootloader, capable of
storing code to perform robust In-Application Programming (IAP) of the primary Flash
memory. The CPU executes code from the secondary Flash, while updating code in the
primary Flash memory. New code for the primary Flash memory can be downloaded over
any of the interfaces on the STR91xFA (USB, Ethernet, CAN, UART, etc.)
Additionally, the secondary Flash memory may also be used to store small data sets by
emulating EEPROM through firmware, eliminating the need for external EEPROM
memories. This raises the data security level because passcodes and other sensitive
information can be securely locked inside the STR91xFA device.
The secondary Flash memory is sectored as shown in
Both the primary Flash memory and the secondary Flash memory can be programmed with
code and/or data using the JTAG In-System Programming (ISP) channel, totally
independent of the CPU. This is excellent for iterative code development and for
manufacturing.
Size of primary Flash
Size of each sector
Number of sectors
Sectoring of primary Flash memory
mapping, for more detail.
Doc ID 13495 Rev 6
256 Kbytes
4
64 Kbytes
512 Kbytes
Table 4
8
according to device type.
Table 3
1 Mbyte
16
64 Kbytes
for number of
STR91xFAxxx
2 Mbytes
32