HD64F2239TF20I Renesas Electronics America, HD64F2239TF20I Datasheet - Page 827

• Manufacturer Part Number: HD64F2239TF20I
• Description: MCU 3V 384K I-TEMP 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2200r

Specifications of HD64F2239TF20I

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 72
• Program Memory Size: 384KB (384K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

This LSI has an on-chip clock pulse generator that generates the system clock (φ), the bus master
clock, and internal clocks. The clock pulse generator consists of an oscillator, duty adjustment
circuit, clock selection circuit, medium-speed clock divider, bus master clock selection circuit,
subclock oscillator, and wave formation circuit. A block diagram of the clock pulse generator is
shown in figure 23.1.
Frequency changes are performed by software by settings in the low-power control register
(LPWRCR) and system clock control register (SCKCR).
EXTAL
XTAL
OSC1
OSC2
Legend:
LPWRCR:
SCKCR:
Low-power control register
System clock control register
Subclock
oscillator
oscillator
System
clock
Figure 23.1 Block Diagram of Clock Pulse Generator
Section 23 Clock Pulse Generator
Generation
adjustment
Waveform
LPWRCR
Circuit
circuit
Duty
WDT_1 count clock
RFCUT
φSUB
Note: * Supported only by the H8S/2239 Group.
selection
circuit
Clock
System clock φ pin
Rev. 6.00 Mar. 18, 2010 Page 765 of 982
clock divider
Medium-
speed
peripheral modules
Section 23 Clock Pulse Generator
Internal clock to
φ
φ/2 to
φ/32
selection
SCKCR
REJ09B0054-0600
master
circuit
clock
Bus
Bus master clock
to CPU and DTC
SCK2 to SCK0
and DMAC *