DF2357F20 Renesas Electronics America, DF2357F20 Datasheet - Page 593

• Manufacturer Part Number: DF2357F20
• Description: IC H8S MCU FLASH 5V 128K 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2357F20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 87
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K 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: 128-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

19.1
This series has 256, or 128 kbytes of flash memory, 256 or 128 kbytes of masked ROM, or 128 kbytes of PROM. 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
The flash memory versions of the H8S/2357 Group can be erased and programmed on-board as well as with a PROM
programmer.
The PROM version of the H8S/2357 Group can be programmed with a PROM programmer, by setting PROM mode.
19.1.1
Figure 19-1 shows a block diagram of the on-chip ROM.
19.1.2
The H8S/2357’s on-chip ROM is controlled by the mode pins and register BCRL. The register configuration is shown in
table 19-1.
Table 19-1 ROM Register
Note: * Lower 16 bits of the address.
Overview
Block Diagram
Register Configuration
Name
Mode control register
Bus control register L
Figure 19-1 Block Diagram of ROM (128 kbytes)
H'01FFFE
H'000000
H'000002
Abbreviation
MDCR
BCRL
Section 19 ROM
Internal data bus (upper 8 bits)
Internal data bus (lower 8 bits)
R/W
R/W
R/W
H'01FFFF
H'000001
H'000003
2
, MD
Initial Value
Undefined
Undefined
1
, and MD
Rev.6.00 Oct.28.2004 page 563 of 1016
0
) and bit EAE in BCRL.
Address*
H'FF3B
H'FED5
REJ09B0138-0600H