UPD78F1203MC-CAB-AX Renesas Electronics America, UPD78F1203MC-CAB-AX Datasheet - Page 941
UPD78F1203MC-CAB-AX
Manufacturer Part Number
UPD78F1203MC-CAB-AX
Description
MCU 16BIT 78K0R/LX3 30-SSOP
Manufacturer
Renesas Electronics America
Series
78K0R/Ix3r
Datasheet
1.UPD78F1201MC-CAB-AX.pdf
(1067 pages)
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
-
Available stocks
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Company:
Part Number:
UPD78F1203MC-CAB-AX
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Quantity:
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(2) When detecting level of input voltage from external input pin (EXLVI)
• When starting operation
• When stopping operation
Be sure to clear (0) LVION by using a 1-bit memory manipulation instruction.
Figure 21-8 shows the timing of the interrupt signal generated by the low-voltage detector. The numbers in
this timing chart correspond to <1> to <7> above.
Caution Input voltage from external input pin (EXLVI) must be EXLVI < V
<1>
<2>
<3>
<4>
<5>
<6>
<7>
<8>
Clear bit 1 (LVIMD) of LVIM to 0 (generates interrupt signal when the level is detected) (default value).
Set bit 2 (LVISEL) of the low-voltage detection register (LVIM) to 1 (detects level of input voltage from
Confirm that “input voltage from external input pin (EXLVI) ≥ detection voltage (V
Mask the LVI interrupt (LVIMK = 1).
external input pin (EXLVI)).
Set bit 7 (LVION) of LVIM to 1 (enables LVI operation).
Use software to wait for the following periods of time (Total 210
(TYP.))” when detecting the falling edge of EXLVI, or “input voltage from external input pin (EXLVI) <
detection voltage (V
LVIM.
Clear the interrupt request flag of LVI (LVIIF) to 0.
Release the interrupt mask flag of LVI (LVIMK).
Execute the EI instruction (when vector interrupts are used).
• Operation stabilization time (10
• Minimum pulse width (200
EXLVI
CHAPTER 21 LOW-VOLTAGE DETECTOR
= 1.21 V (TYP.))” when detecting the rising edge of EXLVI, at bit 0 (LVIF) of
User’s Manual U19678EJ1V1UD
μ
s (MIN.))
μ
s (MAX.))
μ
s).
DD
.
EXLVI
= 1.21 V
939
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