R4F24278NVFQU Renesas Electronics America, R4F24278NVFQU Datasheet - Page 1262

• Manufacturer Part Number: R4F24278NVFQU
• Description: MCU 512K/48K 2.7-5.5V 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of R4F24278NVFQU

• Core Processor: H8S/2600
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, Smart Card, SPI, SSU, UART/USART
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 98
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Section 26 Power-Down Modes
(4)
Figure 26.2 shows an example in which a transition is made to software standby mode at the
falling edge on the NMI pin, and software standby mode is cleared at the rising edge on the NMI
pin.
In this example, after an NMI interrupt is accepted with the NMIEG bit in INTCR cleared to 0
(falling edge specification), the NMIEG bit is set to 1 (rising edge specification). And after the
SSBY bit is set to 1, a SLEEP instruction is executed, causing a transition to software standby
mode.
Software standby mode is then cleared at the rising edge on the NMI pin.
Page 1232 of 1448
Oscillator
φ
NMI
NMIEG
SSBY
Software Standby Mode Application Example
Figure 26.2 Software Standby Mode Application Example
NMI exception
handling
NMIEG=1
SSBY=1
SLEEP instruction
Software standby mode
(power-down mode)
Oscillation
stabilization
time t
H8S/2427, H8S/2427R, H8S/2425 Group
OSC2
REJ09B0565-0100 Rev. 1.00
NMI exception
handling
Jul 22, 2010