DF2238RTF6 Renesas Electronics America, DF2238RTF6 Datasheet - Page 853

• Manufacturer Part Number: DF2238RTF6
• Description: MCU 2.2/3V 256K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2200r

Specifications of DF2238RTF6

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 6MHz
• Connectivity: I²C, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 72
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 3.6 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: HD64F2238RTF6; HD64F2238RTF6

When the SLEEP instruction is executed with the SSBY bit = 1, the LSON bit in LPWRCR = 0,
and the PSS bit in TCSR_1 (WDT_1) = 0, operation shifts to the software standby mode. When
software standby mode is cleared by an external interrupt, medium-speed mode is restored.
When the RES or MRES pin is set low and medium-speed mode is cancelled, operation shifts to
the reset state. The same applies in the case of a reset caused by overflow of the watchdog timer.
When the STBY pin is driven low, a transition is made to hardware standby mode.
Figure 24.2 shows the timing for transition to and clearance of medium-speed mode.
Note: * Supported only by the H8S/2239 Group.
24.3
24.3.1
When the SLEEP instruction is executed while the SSBY bit in SBYCR = 0 and the LSON bit in
LPWRCR = 0, the CPU enters the sleep mode. In sleep mode, CPU operation stops but the
contents of the CPU’s internal registers are retained. Other peripheral modules do not stop.
φ,
Peripheral module clock
Bus master clock
Internal address bus
Internal write signal
Transition to Sleep Mode
Sleep Mode
Figure 24.2 Medium-Speed Mode Transition and Clearance Timing
SCKCR
Medium-speed mode
Rev. 6.00 Mar. 18, 2010 Page 791 of 982
Section 24 Power-Down Modes
SCKCR
REJ09B0054-0600