HD64F3029XBL25V Renesas Electronics America, HD64F3029XBL25V Datasheet - Page 186
![MCU 5V 512K,PB-FREE 100-TQFP](/photos/28/61/286123/100-tqfp__100-vqfp_sml.jpg)
HD64F3029XBL25V
Manufacturer Part Number
HD64F3029XBL25V
Description
MCU 5V 512K,PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheet
1.HD64F3029X25.pdf
(1012 pages)
Specifications of HD64F3029XBL25V
Core Processor
H8/300H
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, PWM, WDT
Number Of I /o
70
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 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
Lead free / RoHS Compliant
Eeprom Size
-
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6.5
6.5.1
The H8/3029 is provided with a DRAM interface with functions for DRAM control signal (RAS,
UCAS, LCAS, WE) output, address multiplexing, and refreshing, that direct connection of
DRAM. In the expanded modes, external address space areas 2 to 5 can be designated as DRAM
space accessed via the DRAM interface. A data bus width of 8 or 16 bits can be selected for
DRAM space by means of a setting in ABWCR. When a 16-bit data bus width is selected, CAS is
used for byte access control. In the case of
type can be connected. A fast page mode is supported in addition to the normal read and write
access modes.
6.5.2
Designation of areas 2 to 5 as DRAM space, and selection of the RAS output pin for each area
designated as DRAM space, is performed by setting bits in DRCRA. Table 6.5 shows the
correspondence between the settings of bits DRAS2 to DRAS0 and the selected DRAM space and
RAS output pin.
When an arbitrary value has been set in DRAS2 to DRAS0, a write of a different value other than
000 must not be performed.
DRAM Interface
Overview
DRAM Space and RAS
RAS
RAS
RAS Output Pin Settings
16-bit organization DRAM, therefore, the 2-CAS
Rev. 2.0, 06/04, page 157 of 980
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