HD64F3026X25 Renesas Electronics America, HD64F3026X25 Datasheet - Page 281

• Manufacturer Part Number: HD64F3026X25
• Description: MCU 3V 256K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD64F3026X25

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 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: -

Internal
clock
16TCNT input
clock
16TCNT
16TCNT count timing
GR
H'0000
STR bit
IMF
Internal clock source
Bits TPSC2 to TPSC0 in 16TCR select the system clock ( ) or one of three internal clock
sources obtained by prescaling the system clock ( /2, /4, /8).
Figure 8.15 shows the timing.
External clock source
The external clock pin (TCLKA to TCLKD) can be selected by bits TPSC2 to TPSC0 in
16TCR, and the detected edge by bits CKEG1 and CKEG0. The rising edge, falling edge,
or both edges can be selected.
The pulse width of the external clock signal must be at least 1.5 system clocks when a
single edge is selected, and at least 2.5 system clocks when both edges are selected. Shorter
pulses will not be counted correctly.
Figure 8.16 shows the timing when both edges are detected.
16TCNT value
N – 1
Figure 8.15 Count Timing for Internal Clock Sources
Figure 8.14 Periodic Counter Operation
N
Rev. 2.00 Sep 20, 2005 page 241 of 800
Counter cleared by general
register compare match
Section 8 16-Bit Timer
REJ09B0260-0200
N + 1
Time