DF2556FC20DV Renesas Electronics America, DF2556FC20DV Datasheet - Page 392
![IC H8S/2556 MCU FLASH 144QFP](/photos/12/29/122969/df2556fc20dv_sml.jpg)
DF2556FC20DV
Manufacturer Part Number
DF2556FC20DV
Description
IC H8S/2556 MCU FLASH 144QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2500r
Specifications of DF2556FC20DV
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
CAN, I²C, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
104
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 16x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
144-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2556FC20DV
Manufacturer:
Renesas Electronics America
Quantity:
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Company:
Part Number:
DF2556FC20DV
Manufacturer:
Renesas Electronics America
Quantity:
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Section 10 16-Bit Timer Pulse Unit (TPU)
10.9.3
When counter clearing on compare match is set, TCNT is cleared in the final state in which it
matches the TGR value (the point at which the count value matched by TCNT is updated).
Consequently, the actual counter frequency is given by the following formula:
Where
10.9.4
If the counter clear signal is generated in the T2 state of a TCNT write cycle, TCNT clearing takes
precedence and the TCNT write is not performed.
Figure 10.45 shows the timing in this case.
Rev. 6.00 Sep. 24, 2009 Page 344 of 928
REJ09B0099-0600
f =
φ
Address
Write signal
Counter clear
signal
TCNT
Caution on Period Setting
Contention between TCNT Write and Clear Operations
f
φ : Operating frequency
N : TGR set value
Figure 10.45 Contention between TCNT Write and Clear Operations
(N + 1)
: Counter frequency
φ
N
TCNT write cycle
TCNT address
T1
T2
H'0000
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