HD64F2638F20J Renesas Electronics America, HD64F2638F20J Datasheet - Page 517

• 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
The BRR setting is found from the following formulas.
Asynchronous mode:
Clocked synchronous mode:
Where B: Bit rate (bit/s)
n
0
1
2
3
The bit rate error in asynchronous mode is found from the following formula:
REJ09B0103-0800 Rev. 8.00
May 28, 2010
N =
N =
Error (%) = {
N: BRR setting for baud rate generator (0 ≤ N ≤ 255)
φ: Operating frequency (MHz)
n: Baud rate generator input clock (n = 0 to 3)
Clock
φ
φ/4
φ/16
φ/64
(See the table below for the relation between n and the clock.)
64 × 2
8 × 2
2n–1
φ
φ
2n–1
CKS1
0
0
1
1
(N + 1) × B × 64 × 2
× B
× B
SMR Setting
φ × 10
× 10
× 10
CKS0
0
1
0
1
6
6
6
– 1
– 1
2n–1
– 1} × 100
Section 13 Serial Communication Interface (SCI)
Page 467 of 1458