UPD78F0034BGC-8BS-A Renesas Electronics America, UPD78F0034BGC-8BS-A Datasheet - Page 355

• Manufacturer Part Number: UPD78F0034BGC-8BS-A
• Description: MCU 8-Bit 78K0 CISC 32KB Flash 2.5V/3.3V/5V 64-Pin LQFP
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0034BGC-8BS-A

• Package: 64LQFP
• Family Name: 78K0
• Maximum Speed: 12 MHz
• Ram Size: 1 KB
• Program Memory Size: 32 KB
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 51
• Interface Type: 3-Wire/UART
• On-chip Adc: 8-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 3

18.4 I
18.4.1 Pin configuration
up resistor is required.
The serial clock pin (SCL0) and serial data bus pin (SDA0) are configured as follows.
(1) SCL0 ········· This pin is used for serial clock input and output.
(2) SDA0 ········· This pin is used for serial data input and output.
Since outputs from the serial clock line and the serial data bus line are N-ch open drain outputs, an external pull-
2
C Bus Mode Functions
(Clock input)
Clock output
Data output
Data input
CHAPTER 18 SERIAL INTERFACE IIC0 ( PD780024AY, 780034AY SUBSERIES ONLY)
Master device
This pin is an N-ch open-drain output for both master and slave devices. Input is Schmitt input.
This pin is an N-ch open-drain output for both master and slave devices. Input is Schmitt input.
V
V
SS0
SS0
Figure 18-9. Pin Configuration Diagram
SCL0
SDA0
User’s Manual U14046EJ5V0UD
V
V
DD0
DD0
SDA0
SCL0
Slave device
V
V
SS0
SS0
(Clock output)
Clock input
Data output
Data input
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