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애플리케이션 노트
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디스플레이
제목 / 부품번호
주요 성능 (이점)
QV
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TCXO/크리스털/FRAM이 내장된 정밀 I²C RTC
DS32B35, DS32C35
백업 전원과 쓰기 사이클 제한이 없는 비휘발성 메모리
QV
PDF
클록이 내장된 3.3V 단일 칩 1Mb 비휘발성 SRAM
DS3045W
DS3045W 3.3V 단일 칩 1M 비휘발성 SRAM (RTC 내장)
QV
PDF
클록이 내장된 3.3V 단일 칩 4Mb 비휘발성 SRAM
DS3050W
QV
PDF
3.3V 단일 칩 8Mb 비휘발성 SRAM
DS2065W
QV
PDF
3.3V 단일 칩 4Mb 비휘발성 SRAM
DS2050W
QV
PDF
3.3V 단일 칩 1Mb 비휘발성 SRAM
DS2045W
Key Specifications: Memory (EPROM, EEPROM, ROM, NV SRAM)
Part Number
Memory Type
Memory Size
Bus Type
Real-Time Clock
DIP with Internal Battery
PowerCap Package
Battery Monitor
With GPIO
Single Piece Module
Features
Supply Voltage (min) (V)
Supply Voltage (max) (V)
DS3045W
NV SRAM
128K x 8
Parallel
Yes
No
No
No
No
Yes
µP Reset
Periodic Interrupt
3
3.6
DS3050W
NV SRAM
512K x 8
Parallel
Yes
No
No
No
No
Yes
µP Reset
Periodic Interrupt
3
3.6
DS2050W
NV SRAM
512K x 8
Parallel
No
No
No
No
No
Yes
µP Reset
3
3.6
DS2065W
NV SRAM
1M x 8
Parallel
No
No
No
No
No
Yes
µP Reset
3
3.6
DS2045W
NV SRAM
128K x 8
Parallel
No
No
No
No
No
Yes
µP Reset
3
3.6
See All Memory (EPROM, EEPROM, ROM, NV SRAM) (70)
Key Specifications: Oscillator Modules
Part Number
Frequency
Oscillator Type
Tuning Adjustment Type
Frequency Output Type
Freq. Stability vs. Temp. @0 to +40°C (±ppm)
Freq. Stab. vs.Temp. @-40 to 0/ +40 to 85°C (±ppm)
Frequency Stability vs. Supply Voltage (±ppm/V)
Frequency Stability vs. Aging (±ppm)
Supply Voltage (V)
DS32B35
32.768kHz
TCXO
Digital
CMOS Open-Drain
2
3.5
1 (typ)
5 (0-10 Years)
2.7 to 3.63
3.3
DS32C35
32.768kHz
TCXO
Digital
CMOS Open-Drain
2
3.5
1 (typ)
5 (0-10 Years)
2.7 to 3.63
3.3
See All Oscillator Modules (26)
Key Specifications: Timekeeping & Real-Time Clocks
Part Number
Functions
Time Format (hh = sec/100)
Date Format
Interface
Supply Voltage (V)
Time- keeping Current (typ) (nA)
Memory Type
Memory Size (Bytes)
Number of Time of Day Alarms
DS3045W
Watchdog Timekeeper
HH:MM:SS
YYYY-MM-DD
Bytewide
3.3
-
NV SRAM
128K
1
DS3050W
Watchdog Timekeeper
HH:MM:SS
YYYY-MM-DD
Bytewide
3.3
-
NV SRAM
512K
1
DS32B35
-
HH:MM:SS
YY-MM-DD
I
2
C
2.7 to 3.63
3.3
840
FRAM
2K
8K
-
DS32C35
-
HH:MM:SS
YY-MM-DD
I
2
C
2.7 to 3.63
3.3
840
FRAM
2K
8K
-
See All Timekeeping & Real-Time Clocks (86)
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