ML610Q429-NNNTBZ03A7 Rohm Semiconductor, ML610Q429-NNNTBZ03A7 Datasheet - Page 307

• 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: -

oscillator clock (RCCLK). When the RARUN bit is reset to “0” due to overflow of Counter A, RC oscillation stops
and Counter B stops counting.
The final count value “nB0” of Counter B is the RCCLK count value during the gate time “nA0 t
Counter A starts counting of the base clock (BSCLK) when RARUN is set to “1” and the RCON signal (signal
synchronized with the fall of the base clock) is set to “1”.
automatically reset to “0” (6) and counting is terminated. At the same time, an RC-ADC interrupt request (RADIN)
occurs (7).
When the RCON signal is set to “1”, the RC oscillator circuit starts operation and Counter B starts counting of the RC
expressed by the following expression:
where t
RC oscillation frequency f
CR oscillator circuit
BSCLK
Input waveform
Counter A
Counter B
indicates the BSCLK period and t
nB0
RADINT
RARUN
BSCLK
IN0/IN1
RCCLK
RCON
≅
(1000000H – nA0)
Figure 23-6 Operation Timing in Counter A Reference Mode
RCCLK
000000H
nA0•
t
BSCLK
.
t
RCCLK
t
t
(+1)
BSCLK
RCCLK
000001H 000002H
RCCLK
(+2)
nA0: Reference count value
nB0: Measurement count value
∝
the RCCLK period. That is, “nB0” is a value proportional to the
f
nA0·t
RCCLK
(+3)
23 – 12
nB0·t
Gate time
BSCLK
RCCLK
Chapter 23 RC Oscillation Type A/D Converter
0FFFFFCH
When Counter A overflows, the RARUN bit is
ML610Q428/ML610Q429 User’s Manual
0FFFFFDH 0FFFFFEH 0FFFFFFH
nB0 – 2
nB0 – 1
(Interrupt request)
nB0
Overflow
000000H
BSCLK
” and is