HD64F3048VTF8 Renesas Electronics America, HD64F3048VTF8 Datasheet - Page 181
![IC H8 MCU FLASH 128K 100-QFP](/photos/12/43/124318/hd64f3048vtf8_sml.jpg)
HD64F3048VTF8
Manufacturer Part Number
HD64F3048VTF8
Description
IC H8 MCU FLASH 128K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheet
1.HD64F3048F16.pdf
(907 pages)
Specifications of HD64F3048VTF8
Core Processor
H8/300H
Core Size
16-Bit
Speed
8MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, PWM, WDT
Number Of I /o
70
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.7 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
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
HD64F3048VX8
- Current page: 181 of 907
- Download datasheet (6Mb)
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
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. 7.00 Sep 21, 2005 page 155 of 878
High-impedance
High-impedance
High-impedance
High-impedance
High level
4
Section 6 Bus Controller
5
REJ09B0259-0700
6
CPU cycles
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