UPD78F0500AMC-CAB-AX Renesas Electronics America, UPD78F0500AMC-CAB-AX Datasheet - Page 550

• Manufacturer Part Number: UPD78F0500AMC-CAB-AX
• Description: MCU 8BIT 30SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2r

Specifications of UPD78F0500AMC-CAB-AX

• Core Processor: 78K/0
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 23
• 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
Caution Do not use serial interface IIC0 and the multiplier/divider simultaneously, because various flags
Remark
18.1 Functions of Serial Interface IIC0
R01UH0008EJ0401 Rev.4.01
Jul 15, 2010
Serial interface IIC0 are mounted onto all 78K0/Kx2 microcontroller products.
Serial interface IIC0 has the following two modes.
(1) Operation stop mode
(2) I
Figure 18-1 shows a block diagram of serial interface IIC0.
This mode is used when serial transfers are not performed. It can therefore be used to reduce power consumption.
This mode is used for 8-bit data transfers with several devices via two lines: a serial clock (SCL0) line and a serial
data bus (SDA0) line.
This mode complies with the I
“transfer direction specification”, “data”, and “stop condition” data to the slave device, via the serial data bus. The
slave device automatically detects these received status and data by hardware. This function can simplify the part
of application program that controls the I
Since the SCL0 and SDA0 pins are used for open drain outputs, IIC0 requires pull-up resistors for the serial clock
line and the serial data bus line.
2
C bus mode (multimaster supported)
corresponding to interrupt request sources are shared among serial interface IIC0 and the
multiplier/divider.
The multiplier/divider is mounted only onto the 78K0/Kx2 microcontroller products whose flash memory is at
least 48 KB.
CHAPTER 18 SERIAL INTERFACE IIC0
2
C bus format and the master device can generated “start condition”, “address”,
2
C bus.
CHAPTER 18 SERIAL INTERFACE IIC0
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