UPD78F0138HGK-9ET-A Renesas Electronics America, UPD78F0138HGK-9ET-A Datasheet - Page 125
UPD78F0138HGK-9ET-A
Manufacturer Part Number
UPD78F0138HGK-9ET-A
Description
MCU 8BIT 60K FLASH 64TQFP
Manufacturer
Renesas Electronics America
Series
78K0/Kx1+r
Datasheet
1.UPD78F0138HGK-9ET-A.pdf
(568 pages)
Specifications of UPD78F0138HGK-9ET-A
Core Processor
78K/0
Core Size
8-Bit
Speed
16MHz
Connectivity
3-Wire SIO, LIN, UART/USART
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
42
Program Memory Size
60KB (60K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.5 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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5.5 Clock Generator Operation
mode.
78K0/KE1+, thus enabling the following.
(1) Enhancement of security function
(2) Improvement of performance
The clock generator generates the following clocks and controls the operation modes of the CPU, such as standby
The CPU starts operation when the on-chip internal oscillator starts outputting after reset release in the
When the high-speed system clock is set as the CPU clock by the default setting, the device cannot operate if the
high-speed system clock is damaged or badly connected and therefore does not operate after reset is released.
However, the start clock of the CPU is the on-chip internal oscillation clock, so the device can be started by the
internal oscillation clock after reset release by the clock monitor (detection of high-speed system clock stop).
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 high-speed system clock oscillation stabilization time, the
total performance can be improved.
A timing diagram of the CPU default start using internal oscillator is shown in Figure 5-12.
High-speed system clock f
Internal oscillation clock f
Subsystem clock f
CPU clock f
Clock to peripheral hardware
CPU
XT
R
XP
CHAPTER 5 CLOCK GENERATOR
User’s Manual U16899EJ3V0UD
123
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