HD6473258P10 Renesas Electronics America, HD6473258P10 Datasheet - Page 174
HD6473258P10
Manufacturer Part Number
HD6473258P10
Description
IC H8 MCU OTP 32K 64DIP
Manufacturer
Renesas Electronics America
Series
H8® H8/325r
Datasheet
1.HD6413238F10.pdf
(301 pages)
Specifications of HD6473258P10
Core Processor
H8/300
Core Size
8-Bit
Speed
10MHz
Connectivity
SCI, UART/USART
Number Of I /o
53
Program Memory Size
32KB (32K x 8)
Program Memory Type
OTP
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
64-DIP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Peripherals
-
Available stocks
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Manufacturer
Quantity
Price
Company:
Part Number:
HD6473258P10
Manufacturer:
EXEL
Quantity:
6 218
Company:
Part Number:
HD6473258P10V
Manufacturer:
RENESAS
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Part Number:
HD6473258P10V
Manufacturer:
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20 000
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The pulse that increments the timer counter is generated at the falling edge of the internal clock
source signal. If clock sources are changed when the old source is high and the new source is low,
as in case No. 3 in table 8-5, the changeover generates a falling edge that triggers the TCNT clock
pulse and increments the timer counter.
Switching between an internal and external clock source can also cause the timer counter to
increment. This type of switching should be avoided at external clock edges.
Table 8-5. Effect of Changing Internal Clock Sources
No.
1
2
*
*
1
2
Including a transition from low to the stopped state (CKS1 = 0, CKS0 = 0), or a transition from
the stopped state to low.
Including a transition from the stopped state to high.
Description
Low
CKS1 and CKS0 are
rewritten while both
clock sources are low.
Low
CKS1 and CKS0 are
rewritten while old
clock source is low and
new clock source is high.
Low*
High*
1
2
:
:
Old clock
source
New clock
source
TCNT clock
pulse
TCNT
Old clock
source
New clock
source
TCNT clock
pulse
TCNT
167
N
N
CKS rewrite
Timing chart
N + 1
CKS rewrite
N + 1
N + 2
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