HD6473258P10 Renesas Electronics America, HD6473258P10 Datasheet - Page 207

• 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: -

11.1.1 Block Diagram
Figure 11-1 is a block diagram of the on-chip ROM.
11.2 PROM Mode
11.2.1 PROM Mode Setup
In the PROM mode of the PROM version of the H8/3257 and H8/3256, the usual microcomputer
functions are halted to allow the on-chip PROM to be programmed. The programming method is
the same as for the HN27C101. In the PROM mode of the PROM version of the H8/325, H8/323,
and H8/322 the usual microcomputer functions are halted to allow the on-chip PROM to be
programmed. The programming method is the same as for the HN27C256.
To select the PROM mode, apply the signal inputs listed in table 11-2.
Table 11-2. Selection of PROM Mode
Pin
Mode pin MD
Mode pin MD
STBY pin
Pins P7
0
and P7
1
0
1
Figure 11-1. Block Diagram of On-Chip ROM (H8/3257)
Even addresses
Input
Low
Low
Low
High
Internal data bus (upper 8 bits)
Internal data bus (lower 8 bits)
H'0000
H'0002
H'EFFE
On-chip ROM
202
Odd addresses
H'0001
H'0003
H'EFFF
Fig 11-1