HD6473258P10 Renesas Electronics America, HD6473258P10 Datasheet - Page 25

• 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: -

2.1 Overview
The H8/325 Series operates in three modes numbered 1, 2, and 3. An additional non-operating
mode (mode 0) is used for programming the PROM version of the H8/325. The mode is selected by
the inputs at the mode pins (MD
indicated in table 2-1, the mode determines the size of the address space and the usage of on-chip
ROM and on-chip RAM. The ROMless versions (HD6413258, HD6413238) are used only in
mode 1 (expanded mode with on-chip ROM disabled).
Table 2-1. Operating Modes
MD
Low Low Mode 0
Low High Mode 1
High Low Mode 2
High High Mode 3
* If the RAME bit in the system control register (SYSCR) is cleared to 0, off-chip memory can be
Modes 1 and 2 are expanded modes that permit access to off-chip memory and peripheral devices.
The maximum address space supported by these externally expanded modes is 64 kbytes.
In mode 3 (single-chip mode), only on-chip ROM and RAM and the on-chip register field are used.
All ports are available for general-purpose input and output.
Mode 0 is inoperative in the H8/325 Series. Avoid setting the mode pins to mode 0.
accessed instead.
1
Section 2. MCU Operating Modes and Address Space
MD
0
Mode
Address space
—
Expanded
Expanded
Single-chip
1
and MD
0
) at the instant when the chip comes out of a reset. As
On-chip ROM
—
Disabled
Enabled
Enabled
15
On-chip RAM
—
Enabled*
Enabled*
Enabled