HD64F3644H Renesas Electronics America, HD64F3644H Datasheet - Page 125

• Manufacturer Part Number: HD64F3644H
• Description: IC H8 MCU FLASH 32K 64-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD64F3644H

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 64-QFP
• Package: 64PQFP
• Family Name: H8
• Maximum Speed: 8 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 45
• Interface Type: SCI
• On-chip Adc: 8-chx8-bit
• Number Of Timers: 4
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

6.1
The H8/3644 has 32 kbytes of on-chip mask ROM, PROM or flash memory. The H8/3643 has 24
kbytes of mask ROM or flash memory. The H8/3642 has 16 kbytes of mask ROM or flash
memory. The H8/3641 has 12 kbytes of on-chip ROM. H8/3640 has 8 kbytes of ROM. The ROM
is connected to the CPU by a 16-bit data bus, allowing high-speed two-state access for both byte
data and word data.
In the PROM version (H8/3644 ZTAT) and flash memory versions (H8/3644 F-ZTAT, H8/3643
F-ZTAT, H8/3642 AF-ZTAT), programs can be written and erased with a general-purpose PROM
programmer. In the on-chip flash memory versions, programs can be written and erased on-board.
6.1.1
Figure 6.1 shows a block diagram of the on-chip ROM.
Overview
Block Diagram
H'7FFE
H'0000
H'0002
Figure 6.1 ROM Block Diagram (H8/3644)
Even-numbered
Internal data bus (upper 8 bits)
address
Internal data bus (lower 8 bits)
H'7FFE
H'0000
H'0002
Section 6 ROM
On-chip ROM
Odd-numbered
Rev. 6.00 Sep 12, 2006 page 103 of 526
address
H'7FFF
H'0001
H'0003
REJ09B0326-0600
Section 6 ROM