DF2370VFQ34V Renesas Electronics America, DF2370VFQ34V Datasheet - Page 1020
![IC H8S/2370 MCU FLASH 144-LQFP](/photos/12/41/124170/df2370vfq34v_sml.jpg)
DF2370VFQ34V
Manufacturer Part Number
DF2370VFQ34V
Description
IC H8S/2370 MCU FLASH 144-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Datasheet
1.YR0K42378FC000BA.pdf
(1208 pages)
Specifications of DF2370VFQ34V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
34MHz
Connectivity
I²C, IrDA, SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
96
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 16x10b; D/A 6x8b
Oscillator Type
External
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)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Manufacturer
Quantity
Price
Company:
Part Number:
DF2370VFQ34V
Manufacturer:
Exar
Quantity:
67
Company:
Part Number:
DF2370VFQ34V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 21 Flash Memory (0.18-μm F-ZTAT Version)
21.9
1. Download time of on-chip program
2. Write to flash-memory related registers by DMAC
3. Compatibility with programming/erasing program of conventional F-ZTAT H8 microcomputer
4. Monitoring runaway by WDT
5. Notes on supplying power
6. User branch processing intervals
Table 21.15 User Branch Processing Start Intervals
Programming operation
Erasing operation
Rev.7.00 Mar. 18, 2009 page 952 of 1136
REJ09B0109-0700
The programming program that includes the initialization routine and the erasing program that
includes the initialization routine are each 4 kbytes or less. Accordingly, when the CPU clock
frequency is 35 MHz, the download for each program takes approximately 60 μs at maximum.
While an instruction in on-chip RAM is being executed, the DMAC can write to the SCO bit
in FCCS that is used for a download request or FMATS that is used for MAT switching. Make
sure that these registers are not accidentally written to, otherwise an on-chip program may be
downloaded and damage RAM or a MAT switchover may occur and the CPU get out of
control. Do not use DMAC to program FLASH related registers.
A programming/erasing program for flash memory used in the conventional F-ZTAT H8
microcomputer which does not support download of the on-chip program by a SCO transfer
request cannot run in this LSI. Be sure to download the on-chip program to execute
programming/erasing of flash memory in this LSI.
Unlike the conventional F-ZTAT H8 microcomputer, no countermeasures are available for a
runaway by WDT during programming/erasing by the downloaded on-chip program. Prepare
countermeasures (e.g. use of the periodic timer interrupts) for WDT while taking the
programming/erasing time into consideration as required.
When the power is supplied, the reset signal must be a low level and the external-input clock
must be supplied.
The user branch processing interval differs for programming and erasing operations. Table
21.15 shows the maximum start intervals when the CPU clock frequency is 35 MHz.
Usage Notes
Maximum Interval
1 ms
30 ms
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