DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 69

• 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: -

3.1
This LSI has four MCU operating modes and three on-chip flash memory programming modes.
The operating mode is determined by the setting of FWE, MD1, and MD0 pins. Table 3.1 shows
the allowable combinations of these pin settings; do not set these pins in the other way than the
shown combinations.
When power is applied to the system, be sure to conduct power-on reset.
The MCU operating mode can be selected from MCU extension modes 0 to 2 and single chip
mode. For the on-chip flash memory programming mode, boot mode, user boot mode, and user
program mode, which are on-chip programming modes are available.
Table 3.1
Notes: 1. Flash memory programming mode.
Mode No.
Mode 3
Mode 4*
Mode 6*
2. Prohibited in SH71251A, SH71250A, SH71241A and SH71240A.
1
2
Selection of Operating Modes
Selection of Operating Modes
0
1
1
FWE
Section 3 MCU Operating Modes
Pin Setting
MD1
1
0
1
Mode Name
Single chip mode
Boot mode
User program mode
Rev. 5.00 Mar. 06, 2009 Page 49 of 770
On-Chip ROM
(Flash memory)
Active
Active
Active
REJ09B0243-0500