HD64F3684FP Renesas Electronics America, HD64F3684FP Datasheet - Page 109

• Manufacturer Part Number: HD64F3684FP
• Description: IC H8 MCU FLASH 32K 64LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300H Tinyr

Specifications of HD64F3684FP

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: PWM, WDT
• Number Of I /o: 45
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

This LSI has six modes of operation after a reset. These include a normal active mode and four
power-down modes, in which power consumption is significantly reduced. Module standby mode
reduces power consumption by selectively halting on-chip module functions.
6.1
The registers related to power-down modes are listed below.
LPW3002A_000120030300
Active mode
The CPU and all on-chip peripheral modules are operable on the system clock. The system
clock frequency can be selected from osc, osc/8, osc/16, osc/32, and osc/64.
Subactive mode
The CPU and all on-chip peripheral modules are operable on the subclock. The subclock
frequency can be selected from w/2, w/4, and w/8.
Sleep mode
The CPU halts. On-chip peripheral modules are operable on the system clock.
Subsleep mode
The CPU halts. On-chip peripheral modules are operable on the subclock.
Standby mode
The CPU and all on-chip peripheral modules halt. When the clock time-base function is
selected, the RTC is operable.
Module standby mode
Independent of the above modes, power consumption can be reduced by halting on-chip
peripheral modules that are not used in module units.
System control register 1 (SYSCR1)
System control register 2 (SYSCR2)
Module standby control register 1 (MSTCR1)
Module standby control register 2 (MSTCR2)
Register Descriptions
Section 6 Power-Down Modes
Rev.5.00 Nov. 02, 2005 Page 75 of 500
Section 6 Power-Down Modes
REJ09B0027-0500