HD64F2638F20J Renesas Electronics America, HD64F2638F20J Datasheet - Page 705

• Manufacturer Part Number: HD64F2638F20J
• Description: IC H8S MCU FLASH 256K 128-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2600r

Specifications of HD64F2638F20J

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, SCI, SmartCard
• Peripherals: Motor Control PWM, POR, PWM, WDT
• Number Of I /o: 72
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Table 16-3 BCR Register Value Setting Ranges
Name
Time segment 1
Time segment 2
Baud rate prescaler
Sample point
Synchronization jump width
b. Value Setting Ranges
• The minimum value of SJW is stipulated in the CAN specifications.
• The minimum value of TSEG1 is stipulated in the CAN specifications.
• The minimum value of TSEG2 is stipulated in the CAN specifications.
The following formula is used to calculate the baud rate.
Example: With a 1 Mb/s baud rate and a 20 MHz input clock:
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Bit rate =
Note: f
1 Mb/s =
3 ≥ SJW ≥ 0
TSEG1 > TSEG2
TSEG2 ≥ SJW
[b/s]
The BCR value are used for BRP, TSEG1, and TSEG2.
CLK
2 × (0 + 1) × (3 + 4 + 3)
2 × (BRP + 1) × (3 + TSEG1 + TSEG2)
= φ (system clock)
20 MHz
Abbreviation
TSEG1
TSEG2
BRP
SAM
SJW
f
CLK
Min. Value
B'0011
B'001
B'000000
B'0
B'00
Section 16 Controller Area Network (HCAN)
Max. Value
B'1111
B'111
B'111111
B'1
B'11
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