DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 81
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
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF71251AD50FPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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4.3
Table 4.3 shows the clock operating mode of this LSI.
Table 4.3
The frequency of the external clock input from the EXTAL pin is multiplied by 8 in the PLL
circuit before being supplied to the on-chip modules in this LSI, which eliminates the need to
generate a high-frequency clock outside the LSI. Since the input clock frequency ranging from 10
MHz to 12.5 MHz can be used, the internal clock (Iφ) frequency ranges from 10 MHz to 50 MHz.
Maximum operating frequencies:
Iφ = 50 MHz, Bφ = 40 MHz, Pφ = 40 MHz, and MPφ = 40 MHz
Table 4.4 shows the frequency division ratios that can be specified with FRQCR.
Source
EXTAL input or crystal resonator
Clock Operating Mode
Clock Operating Mode
PLL Circuit
ON (×8)
Rev. 5.00 Mar. 06, 2009 Page 61 of 770
Input to Divider
×8
REJ09B0243-0500
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