HD64F7144F50V Renesas Electronics America, HD64F7144F50V Datasheet - Page 99

• Manufacturer Part Number: HD64F7144F50V
• Description: IC SUPERH MCU FLASH 256K 112QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7144r

Specifications of HD64F7144F50V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, I²C, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 74
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 112-QFP
• For Use With: HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)EDK7145 - DEV EVALUATION KIT SH7145
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

This LSI has an on-chip clock pulse generator (CPG) that generates the system clock (φ) and the
peripheral clock (Pφ), and then makes internal clock (φ/2 to φ/8192 and Pφ/2 to Pφ/1024) out of
this generated clock. The CPG consists of an oscillator, PLL circuit, and pre-scaler. A block
diagram of the clock pulse generator is shown in figure 4.1. The frequency from the oscillator can
be modified by the PLL circuit.
CPG0111A_010120030800
PLLCAP
EXTAL
XTAL
MD2
MD3
Figure 4.1 Block Diagram of Clock Pulse Generator
CK
Section 4 Clock Pulse Generator
Oscillator
control circuitry
Clock mode
PLL circuit
φ
Pre-scaler
Clock divider
φ/2 to
φ/8192
(× 1/2)
for internal circuit
Rev.4.00 Mar. 27, 2008 Page 53 of 882
Pre-scaler
Pφ/2 to
Pφ/1024
4. Clock Pulse Generator
Pφ
REJ09B0108-0400