UPD78F9222MC-5A4-A Renesas Electronics America, UPD78F9222MC-5A4-A Datasheet - Page 257
UPD78F9222MC-5A4-A
Manufacturer Part Number
UPD78F9222MC-5A4-A
Description
MCU 8BIT 4KB FLASH 20PIN
Manufacturer
Renesas Electronics America
Series
78K0S/Kx1+r
Datasheet
1.UPD78F9221MC-5A4-A.pdf
(418 pages)
Specifications of UPD78F9222MC-5A4-A
Core Processor
78K0S
Core Size
8-Bit
Speed
10MHz
Connectivity
LIN, UART/USART
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
15
Program Memory Size
4KB (4K x 8)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
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Manufacturer
Quantity
Price
Company:
Part Number:
UPD78F9222MC-5A4-A
Manufacturer:
FSC
Quantity:
340
Part Number:
UPD78F9222MC-5A4-A
Manufacturer:
NEC
Quantity:
20 000
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16.1 Functions of Low-Voltage Detector
reset occurs. For details of RESF, refer to CHAPTER 14 RESET FUNCTION.
16.2 Configuration of Low-Voltage Detector
The low-voltage detector (LVI) has following functions.
When the low-voltage detector is used to reset, bit 0 (LVIRF) of the reset control flag register (RESF) is set to 1 if
The block diagram of the low-voltage detector is shown in Figure 16-1.
V
DD
Compares supply voltage (V
internal reset signal when V
Detection levels (ten levels) of supply voltage can be changed by software.
Interrupt or reset function can be selected by software.
Operable in STOP mode.
Low-voltage detection
level select register (LVIS)
Figure 16-1. Block Diagram of Low-Voltage Detector
CHAPTER 16 LOW-VOLTAGE DETECTOR
DD
voltage source
DD
< V
Reference
) and detection voltage (V
LVI
.
N-ch
V
User’s Manual U16898EJ6V0UD
DD
LVI
Low-voltage detect
register (LVIM)
), and generates an internal interrupt signal or
INTLVI
Internal reset signal
255
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