M30280FAHP#U5B Renesas Electronics America, M30280FAHP#U5B Datasheet - Page 75

IC M16C/28 MCU FLASH 96K 80LQFP

M30280FAHP#U5B

Manufacturer Part Number
M30280FAHP#U5B
Description
IC M16C/28 MCU FLASH 96K 80LQFP
Manufacturer
Renesas Electronics America
Series
M16C™ M16C/Tiny/28r
Datasheets

Specifications of M30280FAHP#U5B

Core Size
16-Bit
Program Memory Size
96KB (96K x 8)
Core Processor
M16C/60
Speed
20MHz
Connectivity
I²C, IEBus, SIO, UART/USART
Peripherals
DMA, POR, PWM, Voltage Detect, WDT
Number Of I /o
71
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 24x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
80-LQFP
Controller Family/series
M16C
No. Of I/o's
71
Ram Memory Size
8KB
Cpu Speed
20MHz
No. Of Timers
10
Digital Ic Case Style
LQFP
Embedded Interface Type
I2C, UART
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
R0K330290S000BE - KIT EVAL STARTER FOR M16C/29M30290T2-CPE - EMULATOR COMPACT M16C/26A/28/29M30290T2-CPE-HP - EMULATOR COMPACT FOR M16C/TINY
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant

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M
R
R
7.3 On-chip Oscillator Clock
7.4 PLL Clock
e
E
1
NOTE:
. v
Table 7.2 Example for Setting PLL Clock Frequencies
J
6
0
This clock is supplied by a variable on-chip oscillator. This clock is used as the clock source for the CPU
and peripheral function clocks. In addition, if the PM22 bit in the PM2 register is “1” (on-chip oscillator clock
for the watchdog timer count source), this clock is used as the count source for the watchdog timer (Refer
to 10.3 Count source protective mode, Watchdog Timer).
The on-chip oscillator after reset oscillates. The on-chip oscillator clock f
the CPU clock. It can also be turned off by setting the CM21 bit in the CM2 register to “0” (main clock or PLL
clock). If the main clock stops oscillating when the CM20 bit in the CM2 register is “1” (oscillation stop, re-
oscillation detection function enabled) and the CM27 bit is “1” (oscillation stop, re-oscillation detection
interrupt), the on-chip oscillator automatically starts operating, supplying the necessary clock for the micro-
computer.
The PLL clock is generated from the main clock by a PLL frequency synthesizer. This clock is used as the
clock source for the CPU and peripheral function clocks. After reset, the PLL clock is turned off. The PLL
frequency synthesizer is activated by setting the PLC07 bit to “1” (PLL operation). When the PLL clock is
used as the clock source for the CPU clock, wait t
CM11 bit in the CM1 register to “1”.
Before entering wait mode or stop mode, be sure to set the CM11 bit to “0” (CPU clock source is the main
clock). Furthermore, before entering stop mode, be sure to set the PLC07 bit in the PLC0 register to “0”
(PLL stops). Figure 7.10 shows the procedure for using the PLL clock as the clock source for the CPU.
The PLL clock frequency is determined by the equation below.
MHz in M16C/28)
The PLC02 to PLC00 bits can be set only once after reset. Table 7.2 shows the example for setting PLL
clock frequencies.
C
2
9
X
(MHz)
1. 10 MHz
PLL clock frequency=f(X
0 .
2 /
B
10
(However, 10 MHz
IN
5
0
0
8
0
M16C/28.
4
G
J
7
a
o r
0 -
. n
u
2
PLC02
3
p
0
, 1
0
0
0
(
M
2
PLL clock frequency
0
1
0
6
7
C
2 /
PLC01
, 8
page 53
0
1
PLL clock frequency
M
1
IN
6
) X (multiplying factor set by the PLC02 to PLC00 bits PLC0 register
C
f o
2 /
PLC00
8
3
) B
1
0
8
5
24 MHz in M16C/28B, 10 MHz
Multiplying factor
24 MHz in M16C/28B, 10 MHz
2
4
su
(PLL) for the PLL clock to be stable, and then set the
PLL clock
(MHz)
20
(1)
PLL clock frequency
2
(ROC) divided by 16 is used for
PLL clock frequency
7. Clock Generation Circuit
20 MHz in
20

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