UPD78F0034BGC-8BS-A Renesas Electronics America, UPD78F0034BGC-8BS-A Datasheet - Page 169

• 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

7.1 Clock Generator Functions
types of system clock oscillators are available.
(1) Main system clock oscillator
(2) Subsystem clock oscillator
7.2 Clock Generator Configuration
The clock generator generates the clock to be supplied to the CPU and peripheral hardware. The following two
The clock generator consists of the following hardware.
This circuit oscillates a clock with the following frequencies.
Oscillation can be stopped by executing the STOP instruction or setting the processor clock control register
(PCC).
The circuit oscillates a clock with a frequency of 32.768 kHz. Oscillation cannot be stopped. If the subsystem
clock oscillator is not used, the internal feedback resistor can be disabled by the processor clock control register
(PCC). This enables to reduce the power consumption in the STOP mode.
1.0 to 8.38 MHz: Conventional product of PD780021A, 780022A, 780023A, 780024A, 780031A, 780032A,
1.0 to 12 MHz:
Control registers
Oscillators
Controllers
780033A, 780034A and PD780021AY, 780022AY, 780023AY, 780024AY, 780031AY,
780032AY, 780033AY, 780034AY, 78F0034A, 78F0034AY, 78F0034BY
Expanded-specification product of PD780021A, 780022A, 780023A, 780024A, 780031A,
780032A, 780033A, 780034A and PD78F0034B
Item
Table 7-1. Clock Generator Configuration
CHAPTER 7 CLOCK GENERATOR
Processor clock control register (PCC)
Oscillation stabilization time select register (OSTS)
Main system clock oscillator
Subsystem clock oscillator
Prescaler
Standby controller
Wait controller
User’s Manual U14046EJ5V0UD
Configuration
167