UPD78F0551MA-FAA-AX Renesas Electronics America, UPD78F0551MA-FAA-AX Datasheet - Page 213

• 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
5.2 Configuration of Clock Generator
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
(3) Internal low-speed oscillation clock (clock for watchdog timer)
Remark f
The clock generator includes the following hardware.
Note
Control registers
Oscillators
• Internal low-speed oscillator
This circuit oscillates a clock of f
always starts operating.
Oscillation can be stopped by using the internal oscillation mode register (RCM) when “internal low-speed
oscillator can be stopped by software” is set by option byte.
The internal low-speed oscillation clock cannot be used as the CPU clock. The following hardware operates with
the internal low-speed oscillation clock.
• Watchdog timer
• 8-bit timer H1 (when f
78K0/KC2-L only
IL
:
Item
Internal low-speed oscillation clock frequency
IL
Clock operation mode select register (OSCCTL)
Processor clock control register (PCC)
Internal oscillation mode register (RCM)
Main OSC control register (MOC)
Main clock mode register (MCM)
Oscillation stabilization time counter status register (OSTC)
Oscillation stabilization time select register (OSTS)
X1 oscillator
XT1 oscillator
Internal high-speed oscillator
Internal low-speed oscillator
, f
IL
/2
Table 5-1. Configuration of Clock Generator
6
, or f
IL
= 30 kHz (TYP.). After a reset release, the internal low-speed oscillation clock
IL
/2
Note
15
is selected)
Configuration
CHAPTER 5 CLOCK GENERATOR
199