DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 496

• 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: -

12.7.6
TE and RE must be set to 1 after waiting for four or more cycles of the peripheral operating clock
after the SCK external clock is changed from 0 to 1.
TE and RE must be set to 1 only while the SCK external clock is 1.
12.7.7
SCI operation can be disabled or enabled using the standby control register. The initial setting is
for SCI operation to be halted. Register access is enabled by clearing module standby mode. For
details, see section 19, Power-Down Modes.
Rev. 5.00 Mar. 06, 2009 Page 476 of 770
REJ09B0243-0500
Note on Using External Clock in Clock Synchronous Mode
Module Standby Mode Setting