M3087BFLBGP#U5 Renesas Electronics America, M3087BFLBGP#U5 Datasheet - Page 104

• Manufacturer Part Number: M3087BFLBGP#U5
• Description: IC M32C/87 MCU FLASH 144LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M32C/80r

Specifications of M3087BFLBGP#U5

• Core Processor: M32C/80
• Core Size: 16/32-Bit
• Speed: 32MHz
• Connectivity: EBI/EMI, I²C, IEBus, IrDA, SIO, UART/USART
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 121
• Program Memory Size: 1MB (1M x 8)
• Program Memory Type: FLASH
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 34x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 144-LQFP
• For Use With: R0K330879S001BE - KIT DEV RSK M32C/87R0K330879S000BE - KIT DEV RSK M32C/87
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

M32C/87 Group (M32C/87, M32C/87A, M32C/87B)
REJ09B0180-0151 Rev.1.51 Jul 31, 2008
Page 80 of 587
9.
9.1
Table 9.1
Applications
Clock frequency
Connectable
oscillator or
resonator
Oscillator or
resonator connect
pins
Oscillation stop/
restart function
Oscillator state
after reset
Other
The MCU has four on-chip clock generation circuits to generate system clock signals.
Table 9.1 lists the specifications of the clock generation circuit. Figure 9.1 shows a block diagram of the clock
generation circuit. Figures 9.2 to 9.8 show clock-associated registers.
Clock Generation Circuits
•
•
•
•
Main clock oscillation circuit
Sub clock oscillation circuit
On-chip oscillator
PLL frequency synthesizer
Item
Types of the Clock Generation Circuit
Clock Generation Circuit Specifications
• CPU clock source
• Peripheral function
Up to 32 MHz
• Ceramic resonator
• Crystal oscillator
XIN, XOUT
Available
Oscillating
Externally generated
clock can be used.
Main Clock Oscillation
clock source
Circuit
• CPU clock source
• Count source for
32.768 kHz
Crystal oscillator
XCIN, XCOUT
Available
Stopped
Externally generated
clock can be used.
Sub Clock Oscillation
timer A and timer B
Circuit
• CPU clock source
• Peripheral function
Approx. 1 MHz
−
−
Available
Stopped
Oscillation stop detect
function:
clock source
When the main clock
stops, the on-chip
oscillator starts
oscillating
automatically and
becomes the CPU
and peripheral
function clock source
On-chip Oscillator
9. Clock Generation Circuits
• CPU clock source
• Peripheral function
Up to 32 MHz
(see Table 9.3)
−
−
Available
Stopped
30 MHz or 20 MHz:
32 MHz or 21.3 MHz
clock source
Input 10 MHz to the
main clock
Input 8 MHz to the
main clock
PLL Frequency
Synthesizer