DF2345TE20 Renesas Electronics America, DF2345TE20 Datasheet - Page 519

• Manufacturer Part Number: DF2345TE20
• Description: MCU 5V 128K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2345TE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 71
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2345TE20; HD64F2345TE20

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
smaller error is specified.
Table 13.6 Examples of BRR Settings for Bit Rate B (bit/s) (When n = 0)
Table 13.7 Maximum Bit Rate at Various Frequencies (Smart Card Interface Mode)
The bit rate error is given by the following formula:
bit/s
9600
7.1424
10.00
10.7136
13.00
14.2848
16.00
18.00
20.00
(MHz)
N =
Error (%) =
N Error N Error N Error N Error N Error N Error N Error N Error
0
7.1424
0.00
1488
1
2
1488
2n–1
10.00
Maximum Bit Rate (bit/s)
9600
13441
14400
17473
19200
21505
24194
26882
30
B
2
2n-1
1
10.7136
10
25
B
6
– 1
(N + 1)
1
13.00
8.99
(MHz)
10
1
6
14.2848
Rev. 4.00 Feb 15, 2006 page 493 of 900
– 1
0.00
N
0
0
0
0
0
0
0
0
Section 13 Smart Card Interface
100
1
16.00
12.01 2
N
REJ09B0291-0400
18.00
n
0
0
0
0
0
0
0
0
15.99 2
255, and the
20.00
6.60