HD6473258P10 Renesas Electronics America, HD6473258P10 Datasheet - Page 92

• Manufacturer Part Number: HD6473258P10
• Description: IC H8 MCU OTP 32K 64DIP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/325r

Specifications of HD6473258P10

• Core Processor: H8/300
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: SCI, UART/USART
• Number Of I /o: 53
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 64-DIP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Peripherals: -

Mode 1: In mode 1 (expanded mode without on-chip ROM), port 2 is automatically used for
address output. The port 2 data direction register is unwritable. All bits in P2DDR are automatically
set to 1 and cannot be cleared to 0.
Mode 2: In mode 2 (expanded mode with on-chip ROM), the usage of port 2 can be selected on a
pin-by-pin basis. A pin is used for general-purpose input if its data direction bit is cleared to 0, or
for address output if its data direction bit is set to 1.
Mode 3: In single-chip mode port 2 is a general-purpose input/output port.
Reset: A reset clears P2DDR and P2DR to all 0, placing all pins in the input state with the MOS
pull-ups off. In mode 1, when the chip comes out of reset P2DDR is set to all 1, making all pins
address output pins.
Hardware Standby Mode: All pins are placed in the high-impedance state with the MOS pull-ups
off.
Software Standby Mode: P2DDR and P2DR remain in their previous state. Address output pins
are low. General-purpose output pins continue to output the data in P2DR. The MOS pull-ups of
input pins are on or off depending on the values in P2DR.
Figure 5-2 shows a schematic diagram of port 2.
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