DF2328BVF25V Renesas Electronics America, DF2328BVF25V Datasheet - Page 717

• Manufacturer Part Number: DF2328BVF25V
• Description: IC H8S MCU FLASH 256K 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2328BVF25V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 87
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• For Use With: EDK2329 - DEV EVALUATION KIT H8S/2329
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: HD64F2328BVF25V

The method of calculating the value to be set in the bit rate register (BRR) from the operating
frequency and bit rate, on the other hand, is shown below. N is an integer, 0 ≤ N ≤ 255, and the
smaller error is specified.
Table 15.6 Examples of BRR Settings for Bit Rate B (bits/s) (When n = 0 and S = 372)
Bits/s
9600
Table 15.7 Maximum Bit Rate at Various Frequencies (Smart Card Interface Mode)
φ (MHz)
7.1424
10.00
10.7136
13.00
14.2848
16.00
18.00
20.00
25.00
The bit rate error is given by the following formula:
N
0
N =
Error (%) = (
7.1424
Error N
0.00
(When S = 372)
S × 2
1
10.00
2n+1
φ
Error N
30
S × 2
Maximum Bit Rate (bits/s)
9600
13441
14400
17473
19200
21505
24194
26882
33602
× B
1
2n+1
10.7136
× 10
Error N
25
× B × (N + 1)
φ
6
– 1
1
13.00
Error N
8.99
× 10
1
14.2848
φ (MHz)
0.00
Error N
6
– 1) × 100
Rev.6.00 Sep. 27, 2007 Page 685 of 1268
1
16.00
N
0
0
0
0
0
0
0
0
0
Error N
12.01 2
Section 15 Smart Card Interface
18.00
Error N
15.99 2
REJ09B0220-0600
n
0
0
0
0
0
0
0
0
0
20.00
Error N
6.60
3
25.00
Error
12.49