HD64F3644H Renesas Electronics America, HD64F3644H Datasheet - Page 44
HD64F3644H
Manufacturer Part Number
HD64F3644H
Description
IC H8 MCU FLASH 32K 64-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Lr
Datasheet
1.HD64F3644HV.pdf
(551 pages)
Specifications of HD64F3644H
Core Processor
H8/300L
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI
Peripherals
PWM, WDT
Number Of I /o
53
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
64-QFP
Package
64PQFP
Family Name
H8
Maximum Speed
8 MHz
Operating Supply Voltage
3.3|5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
45
Interface Type
SCI
On-chip Adc
8-chx8-bit
Number Of Timers
4
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
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Manufacturer
Quantity
Price
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HD64F3644H
Manufacturer:
HITACHI
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490
Company:
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HD64F3644H
Manufacturer:
Renesas Electronics America
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10 000
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HD
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Renesas
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600
Company:
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HD64F3644HV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Part Number:
HD64F3644HV
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
Part Number:
HD64F3644HV/H83644
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
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Section 2 CPU
2.3.2
Figure 2.4 indicates the data formats in memory. For access by the H8/300L CPU, word data
stored in memory must always begin at an even address. When word data beginning at an odd
address is accessed, the least significant bit is regarded as 0, and the word data beginning at the
preceding address is accessed. The same applies to instruction codes.
When the stack is accessed using R7 as an address register, word access should always be
performed. The CCR is stored as word data with the same value in the upper 8 bits and the lower 8
bits. On return, the lower 8 bits are ignored.
Rev. 6.00 Sep 12, 2006 page 22 of 526
REJ09B0326-0600
Legend:
CCR:
Note: * Ignored on return
Byte data (CCR) on stack
Memory Data Formats
Condition code register
Word data on stack
Data Type
Word data
Byte data
1-bit data
Figure 2.4 Memory Data Formats
Even address
Even address
Even address
Odd address
Odd address
Odd address
Address
Address n
Address n
MSB
MSB
MSB
MSB
MSB
7
7
6
5
Data Format
Upper 8 bits
Lower 8 bits
4
CCR *
CCR
3
2
1
LSB
LSB
LSB
LSB
LSB
0
0
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