UPD78F0551MA-FAA-AX Renesas Electronics America, UPD78F0551MA-FAA-AX Datasheet - Page 717

• Manufacturer Part Number: UPD78F0551MA-FAA-AX
• Description: MCU 8BIT 16-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2-Lr

Specifications of UPD78F0551MA-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: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 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: -

78K0/Kx2-L
25.4.2 RESET pin
reset signal generator on the board, signal collision takes place. To prevent this collision, isolate the connection with the
reset signal generator.
not be correctly programmed.
programmer.
25.4.3 Port pins
status as that immediately after reset. If external devices connected to the ports do not recognize the port status
immediately after reset, the port pin must be connected to V
25.4.4 REGC pin
However, when using the STOP mode that has been entered since operation of the internal high-speed oscillation clock
and external main system clock, 0.47
to stabilize internal voltage.
25.4.5 Other signal pins
25.4.6 Power supply
programmer, and the V
monitor function with the flash memory programmer, even when using the on-board supply voltage.
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
If the reset signal of the dedicated flash memory programmer is connected to the RESET pin that is connected to the
If the reset signal is input from the user system while the flash memory programming mode is set, the flash memory will
When the flash memory programming mode is set, all the pins not used for flash memory programming enter the same
Connect the REGC pin to GND via a capacitor (0.47 to 1
Connect X1, X2, XT1, and XT2 in the same status as in the normal operation mode.
Remark
To use the supply voltage output of the flash memory programmer, connect the V
To use the on-board supply voltage, connect in compliance with the normal operation mode.
However, be sure to connect the V
Supply the same other power supplies (AV
In the flash memory programming mode, the internal high-speed oscillation clock (f
microcontrollers
78K0/Kx2-L
SS
RESET
pin to GND of the flash memory programmer.
Do not input any signal other than the reset signal of the dedicated flash memory
In the flash memory programming mode, the signal output by the reset
signal generator collides with the signal output by the dedicated flash
memory programmer. Therefore, isolate the signal of the reset signal
generator.
μ
DD
Figure 25-4. Signal Collision (RESET Pin)
F is recommended. Also, use a capacitor with good characteristics, since it is used
and V
Signal collision
REF
SS
and AV
pins to V
SS
DD
) as those in the normal operation mode.
Reset signal generator
DD
Dedicated flash memory
programmer connection signal
and GND of the flash memory programmer to use the power
or V
Output pin
μ
SS
F) in the same manner as during normal operation.
via a resistor.
CHAPTER 25 FLASH MEMORY
DD
pin to V
IH
) is used.
DD
of the flash memory
703