UPD78F1142AGB-GAH-AX Renesas Electronics America, UPD78F1142AGB-GAH-AX Datasheet - Page 162
UPD78F1142AGB-GAH-AX
Manufacturer Part Number
UPD78F1142AGB-GAH-AX
Description
MCU 16BIT 78K0R/KX3 64-LQFP
Manufacturer
Renesas Electronics America
Series
78K0R/Kx3r
Datasheet
1.UPD78F1142AGA-HAB-AX.pdf
(880 pages)
Specifications of UPD78F1142AGB-GAH-AX
Core Processor
78K/0R
Core Size
16-Bit
Speed
20MHz
Connectivity
3-Wire SIO, I²C, LIN, UART/USART
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
50
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
1.8 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
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD78F1142AGB-GAH-AX
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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5.5 Clock Generator Operation
mode (see Figure 5-1).
78K0R/KE3, thus enabling the following.
(1) Enhancement of security function
(2) Improvement of performance
160
The clock generator generates the following clocks and controls the operation modes of the CPU, such as standby
• Main system clock f
• Subsystem clock f
• Internal low-speed oscillation clock f
• CPU/peripheral hardware clock f
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. As a result, reset sources can be detected by software and the minimum
amount of safety processing can be done during anomalies to ensure that the system terminates safely.
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 Figure 5-13 and Figure 5-
14.
• High-speed system clock f
• Internal high-speed oscillation clock f
X1 clock f
External main system clock f
X
SUB
MAIN
MX
CLK
CHAPTER 5 CLOCK GENERATOR
EX
IL
User’s Manual U17854EJ9V0UD
IH
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