HD64F7047F50V Renesas Electronics America, HD64F7047F50V Datasheet - Page 395
![IC H8 MCU FLASH 256K 100TQFP](/photos/12/21/122166/qfp100-g1_pkg_sml.jpg)
HD64F7047F50V
Manufacturer Part Number
HD64F7047F50V
Description
IC H8 MCU FLASH 256K 100TQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7047r
Specifications of HD64F7047F50V
Core Processor
SH-2
Core Size
32-Bit
Speed
50MHz
Connectivity
CAN, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
53
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
12K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Package
100PQFP
Family Name
SuperH
Maximum Speed
50 MHz
Operating Supply Voltage
5 V
Data Bus Width
32 Bit
Number Of Programmable I/os
53
Interface Type
CAN/SCI
On-chip Adc
16-chx10-bit
Number Of Timers
7
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Quantity
Price
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Manufacturer:
PANJIT
Quantity:
30 000
Company:
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HD64F7047F50V
Manufacturer:
RENESAS
Quantity:
386
Company:
Part Number:
HD64F7047F50V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Part Number:
HD64F7047F50V
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
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12.4.2
In asynchronous mode, the SCI operates on a basic clock with a frequency of 16 times the bit rate.
In reception, the SCI samples the falling edge of the start bit using the basic clock, and performs
internal synchronization. Receive data is latched internally at the rising edge of the 8th pulse of
the basic clock as shown in figure 12.3. Thus the reception margin in asynchronous mode is given
by formula (1) below.
Where M: Reception margin (%)
Assuming values of F = 0 and D = 0.5 in formula (1), a reception margin is given by formula
below.
However, this is only the computed value, and a margin of 20% to 30% should be allowed in
system design.
Internal basic
clock
Receive data
(RxD)
Synchronization
sampling timing
Data sampling
timing
M =
N: Ratio of bit rate to clock (N = 16)
D: Clock duty (D = 0 to 1.0)
L: Frame length (L = 9 to 12)
F: Absolute value of clock rate deviation
M = {0.5 – 1/(2 × 16)} × 100 [%] = 46.875%
Receive Data Sampling Timing and Reception Margin in Asynchronous Mode
Figure 12.3 Receive Data Sampling Timing in Asynchronous Mode
0.5 –
0
2N
1
8 clocks
Start bit
–
(D – 0.5)
N
16 clocks
7
– (L – 0.5) F
× 100%
15 0
........................... Formula (1)
D0
Rev. 2.00, 09/04, page 353 of 720
7
15 0
D1
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