UPD70F3737GC-UEU-AX Renesas Electronics America, UPD70F3737GC-UEU-AX Datasheet - Page 739
UPD70F3737GC-UEU-AX
Manufacturer Part Number
UPD70F3737GC-UEU-AX
Description
MCU 32BIT V850ES/JX3-L 100-LQFP
Manufacturer
Renesas Electronics America
Series
V850ES/Jx3-Lr
Datasheet
1.UPD70F3737GC-UEU-AX.pdf
(861 pages)
Specifications of UPD70F3737GC-UEU-AX
Package / Case
*
Voltage - Supply (vcc/vdd)
2.2 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Speed
20MHz
Number Of I /o
84
Core Processor
RISC
Program Memory Type
FLASH
Ram Size
8K x 8
Program Memory Size
128KB (128K x 8)
Data Converters
A/D 12x10b, D/A 2x8b
Oscillator Type
Internal
Peripherals
DMA, LVD, PWM, WDT
Connectivity
CSI, EBI/EMI, I²C, UART/USART
Core Size
32-Bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Company:
Part Number:
UPD70F3737GC-UEU-AX
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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24.4 Operation
24.4.1 To use for internal reset signal
Depending on the setting of the LVIM.VIMD bit, an interrupt signal (INTLVI) or an internal reset signal is generated.
How to specify each operation is described below, together with timing charts.
<To start operation>
<1> Mask the interrupt of LVI.
<2> Select the voltage to be detected by using the LVIS.LVIS0 bit.
<3> Set the LVIM.LVION bit to 1 (to enable operation).
<4> Insert a wait cycle of 0.2 ms (max.) or more by software.
<5> By using the LVIM.LVIF bit, check if the supply voltage > detected voltage.
<6> Set the LVIMD bit to 1 (to generate an internal reset signal).
Caution If LVIMD bit is set to 1, the contents of the LVIM and LVIS registers cannot be changed until a
LVI reset request signal
LVI detected voltage
Supply voltage (V
Internal reset signal
LVI detected signal
reset request other than LVI is generated.
(2.80 V (TYP.))
(active low)
LVION bit
Figure 24-2. Operation Timing of Low-Voltage Detector (LVIMD Bit = 1)
DD
)
CHAPTER 24 LOW-VOLTAGE DETECTOR (LVI)
Delay
Preliminary User’s Manual U18953EJ1V0UD
Clear
Delay
Time
739
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