DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 685

• Manufacturer Part Number: DF2148RTE20IV
• Description: MCU 5V 128K I-TEMP,PB-FREE, 100-
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148RTE20IV

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: Host Interface, I²C, IrDA, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 74
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

22.1
The H8S/2148 and H8S/2144 have 128 kbytes of on-chip ROM (flash memory or mask ROM),
the H8S/2143 has 96 kbytes, the H8S/2147, H8S/2147N, and H8S/2142 have 64 kbytes. The
ROM is connected to the CPU by a 16-bit data bus. The CPU accesses both byte and word data in
one state, enabling faster instruction fetches and higher processing speed.
The mode pins (MD1 and MD0) and the EXPE bit in MDCR can be set to enable or disable the
on-chip ROM.
The flash memory versions of the H8S/2148, H8S/2147N, H8S/2144, and H8S/2142 can be erased
and programmed on-board as well as with a general-purpose PROM programmer.
22.1.1
Figure 22.1 shows a block diagram of the ROM.
Overview
Block Diagram
Section 22 ROM
(Mask ROM Version, H8S/2148 F-ZTAT,
H8S/2147N F-ZTAT, H8S/2144 F-ZTAT,
Figure 22.1 ROM Block Diagram (H8S/2148, H8S/2144)
(Mask ROM Version, H8S/2148 F-ZTAT, H8S/2147N F-ZTAT, H8S/2144 F-ZTAT, and H8S/2142 F-ZTAT)
and H8S/2142 F-ZTAT)
H'01FFFE
H'000000
H'000002
Internal data bus (upper 8 bits)
Internal data bus (lower 8 bits)
Section 22 ROM
Rev. 4.00 Sep 27, 2006 page 639 of 1130
H'01FFFF
H'000001
H'000003
REJ09B0327-0400