DF2345TE20 Renesas Electronics America, DF2345TE20 Datasheet - Page 583

• Manufacturer Part Number: DF2345TE20
• Description: MCU 5V 128K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2345TE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 71
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2345TE20; HD64F2345TE20

17.6.3
Mode Transitions: When the mode pins and the FWE pin are set in the reset state and a reset-start
is executed, the MCU enters one of the operating modes shown in figure 17.8. In user mode, flash
memory can be read but not programmed or erased.
Flash memory can be programmed and erased in boot mode, user program mode, and writer mode.
Notes: Only make a transition between user mode and user program mode when the CPU is
FWE = 1,
SWE = 1
User mode with
on-chip ROM
enabled
Flash Memory Operating Modes
not accessing the flash memory.
1. NMI = 1, MD
2. NMI = 1, FWE = 1, MD
On-board programming mode
program mode
FWE = 0
or SWE = 0
User
FWE = 0,
MD
Figure 17.8 Flash Memory Mode Transitions
2
2
= MD
= MD
1
1
RES = 0
= 1
= MD
2
= 0, MD
RES = 0
0
= 0, PF
1
= 1
2
Reset state
= 1, PF
Boot mode
*
2
Rev. 4.00 Feb 15, 2006 page 557 of 900
1
RES = 0
= PF
0
= 0
*
1
RES = 0
REJ09B0291-0400
Writer mode
Section 17 ROM