DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 620

• 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: -

(1) On-chip RAM Address Map when Programming/Erasing is Executed
Some of the procedure programs that should be created by the user, such as a download request,
programming/erasing procedure, and determination of the result, must be executed in the on-chip
RAM. The on-chip programs to be downloaded are all in the on-chip RAM. Note that area in the
on-chip RAM must be controlled so that these programs do not overlap.
Figure 20.10 shows the program area to be downloaded.
Rev.2.00 May. 28, 2009 Page 580 of 732
REJ09B0059-0200
programming/erasing
Not available during
processing period
Figure 20.10 RAM Map when Programming/Erasing is Executed
(Size : 2 kbytes)
downloaded
Area to be
Initialization + programming program
Programming/erasing program entry
Initialization + erasing program
Area that can be used by user
Area that can be used by user
Initialization program entry
(Return value: 1 byte)
<
System use area
On-chip RAM
(15 bytes)
DPFR
or
>
Address
RAMTOP
FTDAR setting
FTDAR setting + 16
FTDAR setting + 32
FTDAR setting + 2 kbytes
RAMEND