DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 232

• 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: -

• P81/SDA0/RxD3
• P80/SCL0/TxD3
Rev.2.00 May. 28, 2009 Page 192 of 732
REJ09B0059-0200
ICE
RE
P81DDR
Pin function
ICE
TE
P80DDR
Pin function
The pin function is switched as shown below according to the combination of the RE bit in
SCR of the SCI_3, the ICE bit in ICCRA of the IIC3_0, and the P81DDR bit. When this pin is
used as the P81 output pin, the output format is NMOS push-pull output. The output format for
SDA0 is NMOS open-drain output, and direct bus drive is possible.
The pin function is switched as shown below according to the combination of the TE bit in
SCR of the SCI_3, the ICE bit in ICCRA of the IIC3_0, and the P80DDR bit. When this pin is
used as the TxD3 or P80 output pin, the output format is NMOS push-pull output. The output
format for SCL0 is NMOS open-drain output, and direct bus drive is possible.
P81 input pin
P80 input pin
0
0
0
0
P81 output pin
P80 output pin
0
1
0
1
TxD3 output pin
RxD3 input pin
⎯
⎯
1
1
SDA0 I/O pin
SCL0 I/O pin
⎯
⎯
⎯
⎯
1
1