ML610Q429-NNNTBZ03A7 Rohm Semiconductor, ML610Q429-NNNTBZ03A7 Datasheet - Page 94

• Manufacturer Part Number: ML610Q429-NNNTBZ03A7
• Description: MCU 8BIT 48K FLASH 128-TQFP
• Manufacturer: Rohm Semiconductor

Specifications of ML610Q429-NNNTBZ03A7

• Core Processor: nX-U8/100
• Core Size: 8-Bit
• Speed: 4.2MHz
• Connectivity: I²C, SSP, UART/USART
• Peripherals: LCD, Melody Driver, POR, PWM, WDT
• Number Of I /o: 20
• Program Memory Size: 48KB (24K x 16)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 1.1 V ~ 3.6 V
• Data Converters: A/D 2x12b, 2x24b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 70°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

6.3.2
6.3.2.1
Setting of the OSCM2, OSCM1 and OSCM0 bits of the frequency control register 0 (FCON0) allows selection of the
500 kHz RC oscillation mode, crysta/ceramic oscillation mode, built-in PLL (Phase Locked Loop) oscillation mode,
external clock input mode, or 2MHz RC oscillation mode for the high-speed clock generation circuit.
In 500kHz RC oscillation mode (OSCM2 = “0”, OSCM0 = “0”, OSCM1 = “0”), supply of OSCLK (high-speed
oscillation clock) is started when 500kHz RC oscillation clock pulse count reaches 128 after oscillation is enabled
(ENOSC is set to “1”).
In 500 kHz RC oscillation mode, both the P10/OSC0 pin and the P11/OSC1 pin can be used as general-purpose input
ports.
Figure 6-4 shows the circuit configuration in 500kHz RC oscillation mode.
Notes:
− The 500kHz-RC oscillation mode is allowed within the range of V
− After system reset mode is released, supply of OSCLK starts after the RC oscillation clock pulse count reaches 8192.
After release of a STOP mode, supply of OSCLK starts.
High-Speed Clock
500 kHz RC Oscillation
RC oscillation
circuit
Figure 6-4 Circuit Configuration in RC Oscillation Mode
V
DDL
STOP mode
ENOSC (Enables oscillation)
Count: 128
6 – 8
OSCLK (High-speed oscillation clock)
DD
= 1.3 V to 3.6 V.
ML610Q428/ML610Q429 User’s Manual
Chapter 6 Clock Generation Circuit