DF2556FC20DV Renesas Electronics America, DF2556FC20DV Datasheet - Page 413

• Manufacturer Part Number: DF2556FC20DV
• Description: IC H8S/2556 MCU FLASH 144QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2500r

Specifications of DF2556FC20DV

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 104
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

11.5
11.5.1
Figure 11.3 shows the TCNT count timing with internal clock source. Figure 11.4 shows the
TCNT incrementation timing with external clock source. The pulse width of the external clock for
incrementation at single edge must be at least 1.5 status, and at least 2.5 states for incrementation
at both edges. The counter will not increment correctly if the pulse width is less than these values.
Internal clock
TCNT input
clock
TCNT
External clock
input pin
TCNT input
clock
TCNT
φ
φ
Operation Timing
TCNT Incrementation Timing
Figure 11.4 Count Timing for External Clock Input
Figure 11.3 Count Timing for Internal Clock Input
N – 1
N – 1
N
N
Rev. 6.00 Sep. 24, 2009 Page 365 of 928
Section 11 8-Bit Timers (TMR)
N + 1
REJ09B0099-0600
N + 1