HD64F3026X25 Renesas Electronics America, HD64F3026X25 Datasheet - Page 645

• 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: -

20.7
Output of the system clock ( ) can be controlled by the PSTOP bit in MSTCRH. When the
PSTOP bit is set to 1, output of the system clock halts and the pin is placed in the high-
impedance state. Figure 20.3 shows the timing of the starting and stopping of system clock output.
When the PSTOP bit is cleared to 0, output of the system clock is enabled. Table 20.4 indicates
the state of the pin in various operating states.
Table 20.4
Operating State
Hardware standby
Software standby
Sleep mode
Normal operation
pin
System Clock Output Disabling Function
Pin State in Various Operating States
MSTCRH write cycle
Figure 20.3 Starting and Stopping of System Clock Output
T1
(PSTOP = 1)
T2
T3
PSTOP = 0
High-impedance
Always high
System clock output
System clock output
High-impedance
Rev. 2.00 Sep 20, 2005 page 605 of 800
MSTCRH write cycle
PSTOP = 1
High-impedance
High-impedance
High-impedance
High-impedance
Section 20 Power-Down State
T1
(PSTOP = 0)
T2
T3
REJ09B0260-0200