UPD78F1203MC-CAB-AX Renesas Electronics America, UPD78F1203MC-CAB-AX Datasheet - Page 924

• Manufacturer Part Number: UPD78F1203MC-CAB-AX
• Description: MCU 16BIT 78K0R/LX3 30-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Ix3r

Specifications of UPD78F1203MC-CAB-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 40MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

20.1 Functions of Power-on-Clear Circuit
922
The power-on-clear circuit (POC) has the following functions.
• Generates internal reset signal at power on.
• Compares supply voltage (V
The reset signal is released when the supply voltage (V
Caution If an internal reset signal is generated in the POC circuit, TRAP, WDRF, INIRF and LVIRF of the
Remark This product incorporates multiple hardware functions that generate an internal reset signal. A flag
when V
DD
< V
reset control flag register (RESF) is cleared.
that indicates the reset source is located in the reset control flag register (RESF) for when an internal
reset signal is generated by the watchdog timer (WDT), low-voltage-detector (LVI), or illegal
instruction execution. RESF is not cleared to 00H and the flag is set to 1 when an internal reset
signal is generated by WDT or LVI.
For details of RESF, see CHAPTER 19 RESET FUNCTION.
PDR
.
CHAPTER 20 POWER-ON-CLEAR CIRCUIT
DD
) and detection voltage (V
User’s Manual U19678EJ1V1UD
DD
) exceeds 1.61 V ±0.09 V.
PDR
= 1.59 V ±0.09 V), generates internal reset signal