DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 135

• 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: -

6.2
Table 6.1 summarizes the pin configuration of the bus controller.
Table 6.1
Symbol
AS
CS1
CS2
CS3
RD
HWR
LWR
WAIT
AH
AD15 to AD0
Input/Output Pins
Pin Configuration
I/O
Output
Output
Output
Output
Output
Output
Output
Input
Output
I/O
Function
Strobe signal indicating that address output on address bus is enabled,
during normal expansion
Chip select signal indicating that area 1 is accessed
Chip select signal indicating that area 2 is accessed
Chip select signal indicating that area 3 is accessed
Strobe signal indicating that the external address area is being read
Strobe signal indicating that external address space is written to, and
upper half (D15 to D8/AD15 to AD8) of data bus is enabled
Strobe signal indicating that basic bus interface space is written to, and
lower half (D7 to D0/AD7 to AD0) of data bus is enabled
Wait request signal when accessing external space
Indicates the address fetch timing signal when in multiplex extension
Address output and data input/output pins
Rev.2.00 May. 28, 2009 Page 95 of 732
REJ09B0059-0200