UPD78F0034BGC-8BS-A Renesas Electronics America, UPD78F0034BGC-8BS-A Datasheet - Page 457

• 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

23.5.3 On-board pin processing
dedicated flash programmer.
may be required in some cases.
When performing programming on the target system, provide a connector on the target system to connect the
An on-board function that allows switching between normal operation mode and flash memory programming mode
<V
<Serial interface pin>
In normal operation mode, input 0 V to the V
V (TYP.) is supplied to the V
A V
The following shows the pins used by the serial interface.
When connecting the dedicated flash programmer to a serial interface pin that is connected to another device
on-board, signal conflict or abnormal operation of the other device may occur. Care must therefore be taken with
such connections.
PP
(1) Connect a pull-down resistor (RV
(2) Use the jumper on the board to switch the V
PP
pin>
pin connection example is shown below.
PD78F0034A, 78F0034B, 78F0034AY, 78F0034BY
Notes 1.
3-wire serial I/O (SIO30)
3-wire serial I/O (SIO31)
3-wire serial I/O (SIO30)
with handshake
I
UART (UART0)
Pseudo 3-wire serial I/O
2
CHAPTER 23
C bus (IIC0)
Serial Interface
2.
3.
PP
PD78F0034A, 78F0034B only
PD78F0034B, 78F0034BY only
PD78F0034AY, 78F0034BY only
Figure 23-5. V
pin, so perform the following.
Note 3
Note 2
PD78F0034A, 78F0034B, 78F0034AY, 78F0034BY
User’s Manual U14046EJ5V0UD
PP
V
Note 1
PP
= 10 k ) to the V
PP
PP
pin. In flash memory programming mode, a write voltage of 10.0
SI30/P20, SO30/P21, SCK30/P22
SI31/P34, SO31/P35, SCK31/P36
SI30/P20, SO30/P21, SCK30/P22, HS/P25
SDA0/P32, SCL0/P33
R
P70/TI00/TO0 (serial data input),
P71/TI01 (serial data output),
P72/TI50/TO50 (serial clock input)
Pin Connection Example
X
D0/P23, T
PP
pin input to either the programmer or directly to GND.
Pull-down resistor
X
D0/P24
Connection pin of dedicated
PP
pin.
Pins Used
flash programmer
(RV
PP
)
455