型号列表 - 机顶盒

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Maxim > 方案 > 机顶盒

存储器

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标题/型号

关键优势

QV PDF

高精度、I²C RTC，集成TCXO/晶体/FRAM
DS32B35, DS32C35

非易失存储器，无需备份电源、不受写次数限制

QV PDF

3.3V、单芯片、1Mb非易失SRAM，带有时钟
DS3045W

DS3045W 3.3V单芯片1M非易失SRAM，集成RTC

QV PDF

3.3V、单芯片、4Mb非易失SRAM，带有时钟
DS3050W

QV PDF

3.3V、单芯片、8Mb非易失SRAM
DS2065W

QV PDF

3.3V、单芯片、4Mb非易失SRAM
DS2050W

QV PDF

3.3V、单芯片、1Mb非易失SRAM
DS2045W

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 (28)

Key Specifications: Timekeeping & Real-Time Clocks

Part Number

Functions

Date/ Time Format (hh = sec/100)

Interface

Supply Voltage (V)

Time- keeping Current (typ) (nA)

Memory Type

Memory Size (Bytes)

Number of Time of Day Alarms

DS32B35

-

YY-MM-DD/ HH:MM:SS

I²C

2.7 to 3.63
3.3

840

FRAM

2K
8K

-

DS32C35

-

YY-MM-DD/ HH:MM:SS

I²C

2.7 to 3.63
3.3

840

FRAM

2K
8K

-

DS3050W

•	Watchdog Timekeeper

YYYY-MM-DD/ HH:MM:SS

Bytewide

3.3

-

NV SRAM

512K

1

See All Timekeeping & Real-Time Clocks (85)

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