UPD78F0550MA-FAA-AX Renesas Electronics America, UPD78F0550MA-FAA-AX Datasheet - Page 190
UPD78F0550MA-FAA-AX
Manufacturer Part Number
UPD78F0550MA-FAA-AX
Description
MCU 8BIT 16-SSOP
Manufacturer
Renesas Electronics America
Series
78K0/Kx2-Lr
Datasheet
1.UPD78F0550MA-FAA-AX.pdf
(734 pages)
Specifications of UPD78F0550MA-FAA-AX
Package / Case
*
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Speed
10MHz
Number Of I /o
12
Core Processor
78K/0
Program Memory Type
FLASH
Ram Size
384 x 8
Program Memory Size
4KB (4K x 8)
Data Converters
A/D 4x10b
Oscillator Type
Internal
Peripherals
LVD, POR, PWM, WDT
Connectivity
I²C, LIN, UART/USART
Core Size
8-Bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD78F0550MA-FAA-AX
Manufacturer:
Renesas
Quantity:
800
Part Number:
UPD78F0550MA-FAA-AX
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
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5.5 Clock Generator Operation
mode (refer to Figure 5-1 and 5-2).
78K0/Kx2-L microcontrollers, thus enabling the following.
(1) Enhancement of security function
(2) Improvement of performance
190
Note
The clock generator generates the following clocks and controls the operation modes of the CPU, such as standby
The CPU starts operation when the internal high-speed oscillator starts outputting after a reset release in the
When the X1 clock is set as the CPU clock by the default setting, the device cannot operate if the X1 clock is
damaged or badly connected and therefore does not operate after reset is released. However, the start clock of
the CPU is the internal high-speed oscillation clock, so the device can be started by the internal high-speed
oscillation clock after a reset release. Consequently, the system can be safely shut down by performing a
minimum operation, such as acknowledging a reset source by software or performing safety processing when
there is a malfunction.
Because the CPU can be started without waiting for the X1 clock oscillation stabilization time, the total
performance can be improved.
When the power supply voltage is turned on, the clock generator operation is shown in Figures 5-16 and 5-17.
Main system clock f
Subsystem clock f
Internal low-speed oscillation clock f
CPU clock f
Peripheral hardware clock f
High-speed system clock f
Internal high-speed oscillation clock f
XT1 clock f
External subsystem clock f
X1 clock f
External main system clock f
78K0/KC2-L only
CPU
X
XT
SUB
XP
Note
PRS
XH
EXCLKS
EXCLK
Preliminary User’s Manual U19111EJ2V1UD
CHAPTER 5 CLOCK GENERATOR
IL
IH
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