UPD78F0550MA-FAA-AX Renesas Electronics America, UPD78F0550MA-FAA-AX Datasheet - Page 632

• Manufacturer Part Number: UPD78F0550MA-FAA-AX
• Description: MCU 8BIT 16-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2-Lr

Specifications of UPD78F0550MA-FAA-AX

• Package / Case: *
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 10MHz
• Number Of I /o: 12
• Core Processor: 78K/0
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Program Memory Size: 4KB (4K x 8)
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Peripherals: LVD, POR, PWM, WDT
• Connectivity: I²C, LIN, UART/USART
• Core Size: 8-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

632
V
LVI
Notes 1.
Remark V
value after a change
Supply voltage (V
V
V
V
Internal reset signal
POR
PDR
LVI
POC reset signal
(set by software)
(set by software)
(set by software)
(set by software)
= 1.91 V (TYP.)
= 1.61 V (TYP.)
= 1.59 V (TYP.)
LVI reset signal
2.
LVISEL flag
LVIMK flag
LVION flag
LVIMD flag
LVIRF flag
V
LVIF flag
The LVIMK flag is set to “1” by reset signal generation.
LVIRF is bit 0 of the reset control flag register (RESF).
POR
PDR
When the LVI default start function (bit 0 (LVISTART) of 0081H = 1) is used, the LVIRF flag may
become 1 from the beginning due to the power-on waveform.
For details of RESF, refer to CHAPTER 20 RESET FUNCTION.
Figure 22-6. Timing of Low-Voltage Detector Internal Reset Signal Generation
: POC power supply rise detection voltage
: POC power supply fall detection voltage
DD
)
L
H
H
Cleared by
software
(Bit: LVISEL = 0, Option Byte: LVISTART = 1)
H
Note 1
Note 2
Interrupt operation mode is set
CHAPTER 22 LOW-VOLTAGE DETECTOR
(LVI interrupt is masked)
by setting LVIMD to 0
Preliminary User’s Manual U19111EJ2V1UD
Not
cleared
Not
cleared
Cleared by
software
voltage (V
Change LVI
detection
LVI
)
Not cleared
Not cleared
by setting LVIMD to 1
Reset mode is set
Cleared by
software
Cleared
Cleared
Time