DF3048X16V Renesas Electronics America, DF3048X16V Datasheet - Page 679

• Manufacturer Part Number: DF3048X16V
• Description: MCU 5V 128K,PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3048X16V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K 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: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

20.1
The H8/3048 Group has a built-in clock pulse generator (CPG) that generates the system clock ( )
and other internal clock signals ( /2 to /4096). After duty adjustment, a frequency divider divides
the clock frequency to generate the system clock ( ). The system clock is output at the pin *
furnished as a master clock to prescalers that supply clock signals to the on-chip supporting
modules. Frequency division ratios of 1/1, 1/2, 1/4, and 1/8 can be selected for the frequency
divider by settings in a division control register (DIVCR). Power consumption in the chip is
reduced in almost direct proportion to the frequency division ratio *
Notes: 1. Usage of the pin differs depending on the chip operating mode and the PSTOP bit
2. The division ratio of the frequency divider can be changed dynamically during
Overview
setting in the module standby control register (MSTCR). For details, see section 21.7,
System Clock Output Disabling Function.
operation. The clock output at the pin also changes when the division ratio is
changed. The frequency output at the pin is shown below.
where,
= EXTAL
EXTAL: Frequency of crystal resonator or external clock signal
n:
Section 20 Clock Pulse Generator
Frequency division ratio (n = 1/1, 1/2, 1/4, or 1/8)
n
Rev. 7.00 Sep 21, 2005 page 653 of 878
Section 20 Clock Pulse Generator
2
.
REJ09B0259-0700
1
and