UPD78F1506GF-GAT-AX Renesas Electronics America, UPD78F1506GF-GAT-AX Datasheet - Page 969

• Manufacturer Part Number: UPD78F1506GF-GAT-AX
• Description: MCU 16BIT 78K0R/LX3 128-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Lx3r

Specifications of UPD78F1506GF-GAT-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LCD, LVD, POR, PWM, WDT
• Number Of I /o: 78
• 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 12x12b, D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

78K0R/Lx3
R01UH0004EJ0401 Rev.4.01
Jul 2, 2010
X1/XT1
oscillator
Internal
high-
speed
oscillator
Clock
generator
operation
when
power
supply
voltage is
turned on
Controlling
high-
speed
system
clock
Controlling
internal
high-
speed
oscillation
clock
Function
When LVI
default start
function stopped
is set (option
byte: LVIOFF =
1)
When LVI
default start
function enabled
is set (option
byte: LVIOFF =
0)
X1/P121,
X2/EXCLK/P122
X1 clock
External main
system clock
High-speed
system clock
Internal high-
speed oscillation
clock
Details of
Function
−
−
If switching the CPU/peripheral hardware clock from the high-speed system clock to
the internal high-speed oscillation clock after restarting the internal high-speed
oscillation clock, do so after 10
When X2 and XT1 are wired in parallel, the crosstalk noise of X2 may increase with
XT1, resulting in malfunctioning.
To use the 1, 8, or 20 MHz internal high-speed oscillation clock, use the option byte
to set the frequency in advance (for details, see CHAPTER 26 OPTION BYTE).
Also, the internal high-speed oscillator automatically starts oscillating after reset
release. (If 8 MHz or 20 MHz is selected by using the option byte, the microcontroller
operates using the 8 MHz internal high-speed oscillator.) To use the 20 MHz internal
high-speed oscillator to operate the microcontroller, oscillation is started by setting bit
0 (DSCON) of the DSCCTL register to 1 with V
If the voltage rises with a slope of less than 0.5 V/ms (MIN.) from power application
until the voltage reaches 1.8 V, input a low level to the RESET pin from power
application until the voltage reaches 1.8 V, or set the LVI default start function
stopped by using the option byte (LVIOFF = 0) (see Figure 5-14). By doing so, the
CPU operates with the same timing as <2> and thereafter in Figure 5-13 after reset
release by the RESET pin.
It is not necessary to wait for the oscillation stabilization time when an external clock
input from the EXCLK pin is used.
A voltage stabilization time (about 2.12 to 5.84 ms) is required after the supply
voltage reaches 1.61 V (TYP.). If the time for the supply voltage to rise from 1.61 V
(TYP.) to 2.07 V (TYP.) is shorter than the voltage stabilization time, reset processing
is entered after the voltage stabilization time elapses.
It is not necessary to wait for the oscillation stabilization time when an external clock
input from the EXCLK pin is used.
The X1/P121 and X2/EXCLK/P122 pins are in the input port mode after a reset
release.
The CMC register can be written only once after reset release, by an 8-bit memory
manipulation instruction.
OSCSELS bit at the same time. For OSCSELS bit, see 5.6.3 Example of controlling
subsystem clock.
Set the X1 clock after the supply voltage has reached the operable voltage of the
clock to be used (see CHAPTER 31 ELECTRICAL SPECIFICATIONS).
The CMC register can be written only once after reset release, by an 8-bit memory
manipulation instruction.
OSCSELS bits at the same time.
controlling subsystem clock.
Set the external main system clock after the supply voltage has reached the operable
voltage
SPECIFICATIONS).
Be sure to confirm that MCS = 0 or CLS = 1 when setting MSTOP to 1. In addition,
stop peripheral hardware that is operating on the high-speed system clock.
If the switching is made immediately after the internal high-speed oscillation clock is
restarted, the accuracy of the internal high-speed oscillation cannot be guaranteed
for 10
Be sure to confirm that MCS = 1 or CLS = 1 when setting HIOSTOP to 1. In addition,
stop peripheral hardware that is operating on the internal high-speed oscillation clock.
μ
s.
of
the
clock
Therefore, it is necessary to also set the value of the
Therefore, it is necessary to also set the value of the
to
μ
s or more have elapsed.
be
used
Cautions
For OSCSELS bits, see 5.6.3 Example of
(see
DD
≥ 2.7 V.
APPENDIX C LIST OF CAUTIONS
CHAPTER
31
ELECTRICAL
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