UPD78F0552MA-FAA-AX Renesas Electronics America, UPD78F0552MA-FAA-AX Datasheet - Page 212
UPD78F0552MA-FAA-AX
Manufacturer Part Number
UPD78F0552MA-FAA-AX
Description
MCU 8BIT 16-SSOP
Manufacturer
Renesas Electronics America
Series
78K0/Kx2-Lr
Datasheet
1.UPD78F0551MA-FAA-AX.pdf
(822 pages)
Specifications of UPD78F0552MA-FAA-AX
Core Processor
78K/0
Core Size
8-Bit
Speed
10MHz
Connectivity
I²C, LIN, UART/USART
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
9
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
- Current page: 212 of 822
- Download datasheet (6Mb)
78K0/Kx2-L
5.1 Functions of Clock Generator
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
The clock generator generates the clock to be supplied to the CPU and peripheral hardware.
The following three kinds of system clocks and clock oscillators are selectable.
(1) Main system clock
(2) Subsystem clock
Note
Remark f
<1> X1 oscillator
<2> Internal high-speed oscillator
An external main system clock (f
external main system clock input can be disabled by executing the STOP instruction or using RCM.
As the main system clock, a high-speed system clock (X1 clock or external main system clock) or internal high-
speed oscillation clock can be selected by using the main clock mode register (MCM).
• Subsystem clock oscillator
An external subsystem clock (f
external subsystem clock input can be disabled by setting PCC and OSCCTL.
This circuit oscillates at a frequency of f
XT2. Oscillation can be stopped by using the processor clock control register (PCC) and clock operation mode
select register (OSCCTL).
78K0/KC2-L only
This circuit oscillates a clock of f
Oscillation can be stopped by executing the STOP instruction or using the main OSC control register (MOC).
This circuit oscillates a clock of f
starts operating with this internal high-speed oscillation clock. Oscillation can be stopped by executing the
STOP instruction or using the internal oscillation mode register (RCM).
f
f
f
f
X
IH
EXCLK
XT
EXCLKS
:
:
:
:
:
X1 clock oscillation frequency
Internal high-speed oscillation clock frequency
External main system clock frequency
XT1 clock oscillation frequency
External subsystem clock frequency
Note
EXCLKS
CHAPTER 5 CLOCK GENERATOR
EXCLK
X
= 32.768 kHz) can also be supplied from the EXCLKS/XT2/P124 pin. An
= 1 to 10 MHz by connecting a resonator to X1 and X2.
IH
= 1 to 10 MHz) can also be supplied from the EXCLK/X2/P122 pin. An
= 4 MHz (TYP.)/8 MHz (TYP.). After a reset release, the CPU always
XT
= 32.768 kHz by connecting a 32.768 kHz resonator across XT1 and
CHAPTER 5 CLOCK GENERATOR
198
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