DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 591

• Manufacturer Part Number: DF2437FV
• Description: IC H8S/2437 MCU FLASH 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of DF2437FV

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 85
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

20.1.1
When each mode pin and the FWE pin are set in the reset state and the reset is canceled, this LSI
enters each operating mode as shown in figure 20.2.
• Flash memory can be read in user mode, but cannot be programmed or erased.
• Flash memory can be read, programmed, or erased on the board only in boot mode, user
• Flash memory can be read, programmed, or erased by means of the PROM programmer in
program mode, and user boot mode.
programmer mode.
Mode Transition
User mode
Figure 20.2 Mode Transition of Flash Memory
FLSHE = 0
→ FWE = 0
FWE = 1 →
FLSHE = 1
User program
mode
Reset state
On-board programming mode
User boot
Programmer mode setting
mode
Rev.2.00 May. 28, 2009 Page 551 of 732
=
0
Boot mode
Programmer
mode
REJ09B0059-0200