DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 805

• Manufacturer Part Number: DF2148ATE20
• Description: IC H8S MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148ATE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: Host Interface, I²C, IrDA, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 74
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4 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: HD64F2148ATE20; HD64F2148ATE20

25.6.5
In software standby mode, I/O port states are retained. Therefore, there is no reduction in current
dissipation for the output current when a high-level signal is output.
Current dissipation increases while waiting for oscillation to settle.
25.7
25.7.1
When the STBY pin is driven low, a transition is made to hardware standby mode from any mode.
In hardware standby mode, all functions enter the reset state and stop operation, resulting in a
significant reduction in power dissipation. As long as the prescribed voltage is supplied, on-chip
RAM data is retained. I/O ports are set to the high-impedance state.
Oscillator
NMI
NMIEG
SSBY
Usage Note
Hardware Standby Mode
Hardware Standby Mode
Figure 25.3 Software Standby Mode Application Example
NMI
exception
handling
NMIEG = 1
SSBY = 1
SLEEP instruction
Software standby mode
(power-down state)
Rev. 4.00 Sep 27, 2006 page 759 of 1130
Oscillation
settling time
t
OSC2
Section 25 Power-Down State
NMI exception
handling
REJ09B0327-0400