DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 202
DF3052BX25V
Manufacturer Part Number
DF3052BX25V
Description
MCU 5V 512K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
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
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF3052BX25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 7 Refresh Controller
7.3.3
Refresh Request Interval and Refresh Cycle Execution: The refresh request interval is
determined as in a DRAM interface, by the settings of RTCOR and bits CKS2 to CKS0 in
RTMCSR. The numbers of states required for pseudo-static RAM read/write cycles and refresh
cycles are the same as for DRAM (see table 7.4). The state transitions are as shown in figure 7.3.
Pseudo-Static RAM Control Signals: Figure 7.15 shows the control signals for pseudo-static
RAM read, write, and refresh cycles.
Rev. 3.00 Mar 21, 2006 page 172 of 814
REJ09B0302-0300
Address
bus
CS
RD
HWR
LWR
RFSH
AS
Note:
3
*
Pseudo-Static RAM Refresh Control
16-bit access
Figure 7.15 Pseudo-Static RAM Control Signal Output Timing
Read cycle
Write cycle *
Area 3 top address
Refresh cycle
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