DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 175

MCU 5V 512K 100-TQFP

DF3052BX25V

Manufacturer Part Number
DF3052BX25V
Description
MCU 5V 512K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheets

Specifications of DF3052BX25V

Core Processor
H8/300H
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
70
Program Memory Size
512KB (512K 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
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DF3052BX25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
7.1
The H8/3052BF has an on-chip refresh controller that enables direct connection of 16-bit-wide
DRAM or pseudo-static RAM (PSRAM).
DRAM or pseudo-static RAM can be directly connected to area 3 of the external address space.
A maximum 128 kbytes can be connected in modes 1 and 2 (1-Mbyte modes). A maximum 2
Mbytes can be connected in modes 3, 4, and 6 (16-Mbyte modes).
Systems that do not need to refresh DRAM or pseudo-static RAM can use the refresh controller as
an 8-bit interval timer.
When the refresh controller is not used, it can be independently halted to conserve power. For
details see section 20.6, Module Standby Function.
Note: The refresh function cannot be used in modes 5 and 7.
7.1.1
The refresh controller can be used for one of three functions: DRAM refresh control, pseudo-static
RAM refresh control, or 8-bit interval timing. Features of the refresh controller are listed below.
Features as a DRAM Refresh Controller
Enables direct connection of 16-bit-wide DRAM
Selection of 2CAS or 2WE mode
Selection of 8-bit or 9-bit column address multiplexing for DRAM address input
Examples:
CAS-before-RAS refresh control
Software-selectable refresh interval
Software-selectable self-refresh mode
Wait states can be inserted
1-Mbit DRAM: 8-bit row address
4-Mbit DRAM: 9-bit row address
4-Mbit DRAM: 10-bit row address
Features
Overview
Section 7 Refresh Controller
8-bit column address
9-bit column address
8-bit column address
Rev. 3.00 Mar 21, 2006 page 145 of 814
Section 7 Refresh Controller
REJ09B0302-0300

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