DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 139
DF2437FV
Manufacturer Part Number
DF2437FV
Description
IC H8S/2437 MCU FLASH 128QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2400r
Specifications of DF2437FV
Core Processor
H8S/2600
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
85
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
128-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2437FV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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6.4
6.4.1
The external address space bus specifications consist of three elements: bus width, number of
access states, and the number of wait modes and program wait states. The bus width and number
of access states for on-chip memory and internal I/O registers are fixed, and are not affected by the
bus controller.
Normal Extended Mode:
1. Bus Width
2. Number of Access States
3. Wait Mode and Number of Program Wait States
Table 6.2
Address Range
H'080000 to H'FBFFFF (15 Mbytes)
H'FC0000 to H'FCFFFF (64 kbytes)
H'FD0000 to H'FDFFFF (64 kbytes)
H'FE0000 to H'FEFFFF (64 kbytes)
H'FF0000 to H'FF9FFF (40 kbytes)
A bus width of 8 or 16 bits can be selected with the ABWn bit in BCRAn.
The number of access states for data access , 2-state or 3-state can be selected with the ASTn
bit in BCRAn. When 2-state access space is designated, wait state insertion is disabled.
When 3-state access space is designated by the ASTn bit in BCRAn, the number of program
wait states to be inserted automatically is selected with WMSn1, WMSn0, WCn1, and WCn0
in the BCRAn. From 0 to 3 program wait states can be selected.
The external extended wait function is effective when the low-speed device is connected to the
external address area.
For details on normal extended address range, external address area, as well as bus interface
specifications, refer to tables 6.2 and 6.3.
Bus Control
Bus Specifications
Address Range and External Address Area (Normal Extended Mode)
Area
Basic area (shares bus specification with area 1)
Area 1
Area 2
Area 3
Integrated with basic area when RAME = 0
Rev.2.00 May. 28, 2009 Page 99 of 732
REJ09B0059-0200
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