DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 353

• Manufacturer Part Number: DF71251AD50FPV
• Description: MCU RISC FLASH 32K 8K 64LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH Tinyr

Specifications of DF71251AD50FPV

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 37
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Status Flag Clearing Timing: After a status flag is read as 1 by the CPU, it is cleared by writing
0 to it. Figures 9.105 and 9.106 show the timing for status flag clearing by the CPU.
Figure 9.105 Timing for Status Flag Clearing by CPU (Channels 0 to 4)
MPφ, Pφ
Address
Write signal
Status flag
Interrupt
request signal
MPφ, Pφ
Address
Write signal
Status flag
Interrupt
request signal
Figure 9.106 Timing for Status Flag Clearing by CPU (Channel 5)
TSR write cycle
TSR write cycle
TSR address
TSR address
T1
T1
T2
T2
Rev. 5.00 Mar. 06, 2009 Page 333 of 770
REJ09B0243-0500