STR730F STMICROELECTRONICS [STMicroelectronics], STR730F Datasheet - Page 3

• Manufacturer Part Number: STR730F
• Description: ARM7TDMI 32-BIT MCU WITH FLASH, 3x CAN, 4 UARTs, 20 TIMERS, ADC, 12 COMM. INTERFACES
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

High Speed Flash Memory
The Flash program memory is organized in 32-bit wide memory cells which can be used for
storing both code and data constants. It is accessed by CPU with zero wait states @ 36 MHz.
The STR7 embedded Flash memory can be programmed using In-Circuit Programming or
In-Application programming.
The Flash memory endurance is 10K write/erase cycles and the data retention is 20 years at
55°C.
IAP (In-Application Programming): The IAP is the ability to re-program the Flash memory of
a microcontroller while the user program is running.
ICP (In-Circuit Programming): The ICP is the ability to program the Flash memory of a mi-
crocontroller using JTAG protocol while the device is mounted on the user application board.
The Flash memory can be protected against different types of unwanted access (read/write/
erase). There are two types of protection:
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Flexible Power Management
To minimize power consumption, you can program the STR73xF to switch to SLOW, WAIT
LPWAIT, STOP or HALT modes depending on the current system activity in the application.
Flexible Clock Control
Two clock sources are used to drive the microcontroller, a main clock driven by an external
crystal or ceramic resonator and an internal backup RC oscillator that operates at 2MHz or 32
kHz. The embedded PLL allows the internal system clock (up to 36 MHz) to be generated
from a main clock frequency of 10 MHz or less. The PLL output frequency can be
programmed using a wide selection of multipliers and dividers.
Voltage Regulators
The STR73xF requires an external 4.5 to 5.5V power supply. There are two internal Voltage
Regulators for generating the 1.8V power supply needed by the core and peripherals. The
main VR is switched off and the Low Power VR switched on when the application puts the
STR73xF in Low Power Wait (LPWAIT) mode.
Sector Write Protection
Flash Debug Protection (locks JTAG access)
STR73xF Data Brief
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