DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 171
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
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF3052BX25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Figure 6.19 shows the timing when the bus right is requested by an external bus master during a
read cycle in a two-state-access area. There is a minimum interval of two states from when the
BREQ signal goes low until the bus is released.
Figure 6.19 External-Bus-Released State (Two-State-Access Area during Read Cycle)
Address
bus
CS
Data bus
AS
HWR
BREQ
BACK
Note: n = 7 to 0
1
2
3
4, 5
6
n
,
RD
Low
BACK
BREQ
High
BREQ
,
LWR
BREQ
BREQ
signal goes low at end of CPU read cycle, releasing bus right to external bus master.
pin continues to be sampled while bus is released to external bus master.
signal goes high, ending bus-release cycle.
High
signal is sampled twice consecutively.
signal is sampled at rise of T state.
1
CPU cycles
Minimum 2 cycles
T
Address
1
T
1
2
2
3
External bus released
Rev. 3.00 Mar 21, 2006 page 141 of 814
High-impedance
High-impedance
High-impedance
High-impedance
High
4
Section 6 Bus Controller
5
REJ09B0302-0300
6
CPU cycles
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