AT91M43300 ATMEL Corporation, AT91M43300 Datasheet - Page 7

• Manufacturer Part Number: AT91M43300
• Description: At91arm(r) Thumb(r) Microcontrollers
• Manufacturer: ATMEL Corporation

WD: Watchdog Timer
The AT91M43300 features an internal Watchdog Timer
that can be used to guard against system lock-up if the
software becomes trapped in a deadlock.
PMC: Power Management Controller
The Power Management Controller allows optimization of
power consumption. The PMC enables/disables the clock
inputs to most of the peripherals as well as to the ARM pro-
cessor core.
When the ARM core clock is disabled, the current instruc-
tion is processed before the clock is stopped. The clock
can be re-enabled by any enabled interrupt or by a hard-
ware reset.
Ordering Information
Max Speed
(MHz)
25
12
Core Operating
2.7V to 3.6V
1.8V to 3.6V
Voltage
I/O Operating
2.7V to 5.5V
2.7V to 3.6V
Voltage
AT91M43300-12CC-1.8
AT91M43300-12CI-1.8
AT91M43300-25CC
AT91M43300-25CI
Ordering Code
When a peripheral clock is disabled, the clock is immedi-
ately stopped. When the clock is re-enabled, the peripheral
resumes action where it left off.
Due to the static nature of the design, the contents of the
on-chip RAM and registers for which the clocks are dis-
abled remain unchanged.
SF: Special Function
The AT91M43300 provides registers that implement the
following special functions:
•
•
Chip identification
RESET status
(bytes)
RAM
3K
AT91M43300
Package
BGA 144
(-40°C to 85°C)
(-40°C to 85°C)
Temperature
(0°C to 70°C)
(0°C to 70°C)
Commercial
Commercial
Operating
Industrial
Industrial
Range
7