DF2398TE20 Renesas Electronics America, DF2398TE20 Datasheet - Page 707

• Manufacturer Part Number: DF2398TE20
• Description: IC H8S MCU FLASH 256K 120TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2398TE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 87
• Program Memory Size: 256KB (256K 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: 120-TQFP, 120-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2398TE20; HD64F2398TE20

21.6.5
I/O Port Status: In software standby mode, I/O port states are retained. If the OPE bit is set to 1, the address bus and bus
control signal output is also retained. Therefore, there is no reduction in current dissipation for the output current when a
high-level signal is output.
Current Dissipation during Oscillation Stabilization Wait Period: Current dissipation increases during the oscillation
stabilization wait period.
Write Data Buffer Function: The write data buffer function and software standby mode cannot be used at the same time.
When the write data buffer function is used, the WDBE bit in BCRL should be cleared to 0 to cancel the write data buffer
function before entering software standby mode. Also check that external writes have finished, by reading external
addresses, etc., before executing a SLEEP instruction to enter software standby mode. See section 6.9, Write Data Buffer
Function, for details of the write data buffer function.
Usage Notes
Oscillator
ø
NMI
NMIEG
SSBY
Figure 21-2 Software Standby Mode Application Example
NMI exception
handling
NMIEG=1
SSBY=1
SLEEP instruction
Software standby mode
(power-down mode)
stabilization
Oscillation
time t
OSC2
Rev.6.00 Oct.28.2004 page 677 of 1016
NMI exception
handling
REJ09B0138-0600H