DF2345TE20 Renesas Electronics America, DF2345TE20 Datasheet - Page 403

• 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

Bits 2 to 0—Clock Select 2 to 0 (CKS2 to CKS0): These bits select whether the clock input to
TCNT is an internal or external clock.
Three internal clocks can be selected, all divided from the system clock ( ): /8, /64, and /8192.
The falling edge of the selected internal clock triggers the count.
When use of an external clock is selected, three types of count can be selected: at the rising edge,
the falling edge, and both rising and falling edges.
Some functions differ between channel 0 and channel 1.
Note:
Bit 2
CKS2
0
1
* If the count input of channel 0 is the TCNT1 overflow signal and that of channel 1 is the
Bit 1
CKS1
0
1
0
1
TCNT0 compare match signal, no incrementing clock is generated. Do not use this
setting.
Bit 0
CKS0
0
1
0
1
0
1
0
1
Description
Clock input disabled
Internal clock, counted at falling edge of /8
Internal clock, counted at falling edge of /64
Internal clock, counted at falling edge of /8192
For channel 0: count at TCNT1 overflow signal *
For channel 1: count at TCNT0 compare match A *
External clock, counted at rising edge
External clock, counted at falling edge
External clock, counted at both rising and falling edges
Rev. 4.00 Feb 15, 2006 page 377 of 900
Section 10 8-Bit Timers
REJ09B0291-0400
(Initial value)