DF2378BVFQ35V Renesas Electronics America, DF2378BVFQ35V Datasheet - Page 341
DF2378BVFQ35V
Manufacturer Part Number
DF2378BVFQ35V
Description
IC H8S/2378 MCU FLASH 144-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Specifications of DF2378BVFQ35V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
35MHz
Connectivity
I²C, IrDA, SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
97
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 16x10b; D/A 6x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
144-LQFP
For Use With
YLCDRSK2378 - KIT DEV EVAL H8S/2378 LCDYR0K42378FC000BA - KIT EVAL FOR H8S/2378HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)EDK2378 - DEV EVAL KIT FOR H8S/2378
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Figure 6.85 Bus Release State Transition Timing when Synchronous DRAM Interface
DQMU, DQML
Precharge-sel
Address bus
SDRAMφ
[1] Low level of BREQ signal is sampled at rise of φ.
[2] PALL command is issued.
[3] Bus control signal returns to be high at end of external space access cycle.
[4] BACK signal is driven low, releasing bus to external bus master..
[5] BREQ signal state is also sampled in external bus released state.
[6] High level of BREQ signal is sampled.
[7] BACK signal is driven high, ending external bus release cycle.
[8] When there is external access or refresh request of internal bus master during
[9] BREQO signal goes high 1.5 states after rising edge of BACK signal. If BREQO
Note: In the H8S/2373 Group, the synchronous DRAM interface is not supported.
Data bus
BREQO
BREQ
BACK
external bus release while the BREQOE bit is set to 1, BREQO signal goes low.
signal is asserted because of auto-refreshing request, it retains low until auto-refresh cycle starts up.
At least one state from sampling of BREQ signal.
RAS
CAS
CKE
φ
WE
External space read
NOP
T
1
[1]
T
2
[2]
PALL
[3]
address
NOP
Row
[4]
External bus released state
High impedance
High impedance
High impedance
High impedance
High impedance
High impedance
High impedance
High impedance
[5]
Rev.7.00 Mar. 18, 2009 page 273 of 1136
[8]
Section 6 Bus Controller (BSC)
[6]
[7]
NOP
REJ09B0109-0700
[9]
CPU
cycle
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