DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 698
DF71251AD50FPV
Manufacturer Part Number
DF71251AD50FPV
Description
MCU RISC FLASH 32K 8K 64LQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH Tinyr
Datasheet
1.DF71243N50FPV.pdf
(794 pages)
Specifications of DF71251AD50FPV
Core Processor
SH-2
Core Size
32-Bit
Speed
50MHz
Connectivity
SCI
Peripherals
POR, PWM, WDT
Number Of I /o
37
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
64-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Quantity
Price
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Part Number:
DF71251AD50FPV
Manufacturer:
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Quantity:
10 000
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19.6
19.6.1
Setting the MSTP bits in the standby control registers (STBCR2 to STBCR5) to 1 halts the supply
of clocks to the corresponding on-chip peripheral modules. This function can be used to reduce the
power consumption in normal mode.
Do not access registers of an on-chip peripheral module, which has been set to enter module
standby mode. For details on the states of on-chip peripheral module registers in module standby
mode, refer to section 20.3, Register States in Each Operating Mode.
19.6.2
The module standby function can be canceled by clearing the MSTP bits in STBCR2 to STBCR5
to 0. The module standby function can be canceled by a power-on reset for modules whose MSTP
bit has an initial value of 0.
19.7
19.7.1
The current consumption while waiting for oscillation to be stabilized is higher than that while
oscillation is stabilized.
19.7.2
Apply either of the following measures before executing the SLEEP instruction to initiate the
transition to sleep mode or software standby mode.
Measure A: Stop the generation of interrupts from on-chip peripheral modules, IRQ interrupts, and
the NMI interrupt before executing the SLEEP instruction.
Measure B: Change the value in FRQCR to the initial value, H’36DB, and then dummy-read
FRQCR twice before executing the SLEEP instruction.
Rev. 5.00 Mar. 06, 2009 Page 678 of 770
REJ09B0243-0500
Module Standby Mode
Transition to Module Standby Mode
Canceling Module Standby Function
Usage Note
Current Consumption while Waiting for Oscillation to be Stabilized
Executing the SLEEP Instruction
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