DF2117VT20V Renesas Electronics America, DF2117VT20V Datasheet - Page 881

• Manufacturer Part Number: DF2117VT20V
• Description: MCU 16BIT FLASH 3V 160K 144-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2117VT20V

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: FIFO, I²C, LPC, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 112
• Program Memory Size: 160KB (160K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-TQFP, 144-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

25.4
To remove noise from the subclock input at the EXCL (ExEXCL) pin, the subclock waveform
forming circuit samples the subclock using a divided φ clock. The sampling frequency is set by the
NESEL bit in LPWRCR.
The subclock is not sampled in watch mode.
25.5
The clock select circuit selects the system clock that is used in this LSI.
A clock generated by the oscillator to which the XTAL and EXTAL pins are connected is selected
as a system clock (φ) when returning from high-speed mode, sleep mode, the reset state, or
standby mode.
In watch mode, a subclock input from the EXCL (ExEXCL) pin is selected as a system clock
when the EXCLE bit in LPWRCR is 1. At this time, on-chip peripheral modules such as WDT_1
and interrupt controller operate on the φSUB clock. The count clock and sampling clock for each
timer are divided φSUB clocks.
Subclock Waveform Forming Circuit
Clock Select Circuit
EXCL
t
EXCLr
Figure 25.8 Subclock Input Timing
t
EXCLH
t
EXCLf
t
EXCLL
Rev. 2.00 Sep. 28, 2009 Page 839 of 994
V
CC
× 0.5
REJ09B0452-0200