DF2345TE20 Renesas Electronics America, DF2345TE20 Datasheet - Page 567

• Manufacturer Part Number: DF2345TE20
• Description: MCU 5V 128K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2345TE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 71
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2345TE20; HD64F2345TE20

17.1
The H8S/2345 has 128 kbytes of on-chip ROM (flash memory, PROM, or mask ROM); the
H8S/2344 has 96 kbytes of on-chip ROM (mask ROM); the H8S/2343 has 64 kbytes of on-chip
ROM (mask ROM); and the H8S/2341 has 32 kbytes of on-chip ROM (mask ROM). The ROM is
connected to the H8S/2000 CPU by a 16-bit data bus. The CPU accesses both byte data and word
data in one state, making possible rapid instruction fetches and high-speed processing.
The on-chip ROM is enabled or disabled by setting the mode pins (MD
EAE in BCRL.
The flash memory versions of the H8S/2345 Group can be erased and programmed on-board as
well as with a PROM programmer.
The PROM version of the H8S/2345 Group can be programmed with a PROM programmer, by
setting PROM mode.
17.1.1
Figure 17.1 shows a block diagram of the on-chip ROM.
Overview
Block Diagram
Figure 17.1 Block Diagram of ROM (H8S/2345)
H'01FFFE
H'000000
H'000002
Section 17 ROM
Internal data bus (upper 8 bits)
Internal data bus (lower 8 bits)
H'01FFFF
H'000001
H'000003
Rev. 4.00 Feb 15, 2006 page 541 of 900
2
, MD
1
, and MD
REJ09B0291-0400
Section 17 ROM
0
) and bit