DF2345TE20 Renesas Electronics America, DF2345TE20 Datasheet - Page 460

• 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

Section 12 Serial Communication Interface (SCI)
The BRR setting is found from the following formulas.
Asynchronous mode:
Clocked synchronous mode:
Where B: Bit rate (bit/s)
The bit rate error in asynchronous mode is found from the following formula:
Rev. 4.00 Feb 15, 2006 page 434 of 900
REJ09B0291-0400
N: BRR setting for baud rate generator (0
n: Baud rate generator input clock (n = 0 to 3)
n
0
1
2
3
N =
N =
Error (%) =
: Operating frequency (MHz)
(See the table below for the relation between n and the clock.)
64
8
2
Clock
2
2n–1
/4
/16
/64
2n–1
(N + 1)
B
B
CKS1
0
0
1
1
B
10
10
6
6
10
64
– 1
– 1
SMR Setting
6
2
2n–1
CKS0
0
1
0
1
– 1
N 255)
100