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Maxim > Solutions > RAID Data Storage Systems
Real-Time Clocks
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| Display |
Title / Parts |
Key Advantages |
| QV |
NV SRAM Controller with Real-Time Clock and Thermal Tamper Detection
DS3605
| Single-Chip Solution Provides Security, Tamper Detection, Encryption-Key Storage, and Encryption-Key Destruction in Event of Tamper |
| QV PDF |
3.3V Single-Piece 1Mb Nonvolatile SRAM with Clock
DS3045W
| DS3045W 3.3V Single Piece 1M Nonvolatile SRAM with Integrated RTC |
| QV PDF |
3.3V Single-Piece 256Kb Nonvolatile SRAM with Clock
DS3030W
| DS3030W 3.3V Single Piece 256K Nonvolatile SRAM with Integrated RTC |
| QV PDF |
3.3V Single-Piece 8Mb Nonvolatile SRAM with Clock
DS3065W
| |
| QV PDF |
I²C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output
DS1374, DS1374C, DS1374U
| Elapsed Time Counter Provides Power-On Reset, Watchdog or Alarm, and Square Wave |
| QV PDF |
I²C RTC with 56-Byte NV RAM
DS1338, DS1338C, DS1338U, DS1338Z
| |
| QV PDF |
I²C Serial Real-Time Clock
DS1339, DS1339C, DS1339U
| RTC Provides System Flexibility with Multiple Programmable Features |
| QV PDF |
4Meg, Nonvolatile, Y2K-Compliant Timekeeping RAM
DS1557
| |
| QV PDF |
1M, Nonvolatile, Y2K-Compliant Timekeeping RAM
DS1556, DS1556P
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| QV PDF |
Y2K-Compliant Watchdog Real-Time Clocks
DS1501, DS1511
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| QV PDF |
Y2K-Compliant Watchdog RTC with NV Control
DS1500
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| 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) |
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DS3030W
|
NV SRAM
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32K x 8
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Parallel
|
Yes
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No
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No
|
No
|
No
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Yes
|
|
3
|
3.6
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|
DS3045W
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NV SRAM
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128K x 8
|
Parallel
|
Yes
|
No
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No
|
No
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No
|
Yes
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3
|
3.6
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DS3065W
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NV SRAM
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1M x 8
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Parallel
|
Yes
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No
|
No
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No
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No
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Yes
|
|
3
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3.6
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| See All Memory (EPROM, EEPROM, ROM, NV SRAM) (70) |
| Key Specifications:
Non-Volatile RAM Controllers |
| Part Number |
CE Control |
Smart-Socket with Internal Battery |
Li Battery Monitor |
Power Fail Output |
Number of RAMs Controlled |
RESET Output |
Supply Voltage (V) |
Package |
Operating Temp. Range (°C) |
|
DS1500
|
Yes
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No
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Yes
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No
|
1
|
Yes
|
3.3
5
|
TSOP/32
|
-40 to +85
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| See All Non-Volatile RAM Controllers (16) |
| Key Specifications:
Secure Supervisors |
| Part Number |
Analog Voltages Monitored |
Digital Inputs Monitored |
External Memory Control |
Random Number Generator |
Over-Voltage Monitor |
Battery Monitor |
Operating Temp. Range (°C) |
|
DS3605
|
4
|
1
|
Yes
|
Yes
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No
|
Yes
|
-40 to +85
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| See All Secure Supervisors (7) |
| 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) |
CL, Load Capacitance (pF) |
Memory Type |
Memory Size (Bytes) |
Number of Time of Day Alarms |
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DS3030W
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|
HH:MM:SS
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YYYY-MM-DD
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Bytewide
|
3.3
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-
|
-
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NV SRAM
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32K
|
1
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DS3045W
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|
HH:MM:SS
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YYYY-MM-DD
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Bytewide
|
3.3
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-
|
-
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NV SRAM
|
128K
|
1
|
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DS3065W
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|
HH:MM:SS
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YYYY-MM-DD
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Bytewide
|
3.3
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-
|
-
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NV SRAM
|
1M
|
1
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DS1500
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|
HH:MM:SS
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YY-MM-DD
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Bytewide
|
3.3
5
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-
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12.5
6
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NV SRAM
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256
|
1
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DS1374
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|
Binary
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Binary
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I2C
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1.8
3
3.3
5
|
400
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6
|
None
|
-
|
1
|
|
DS1338
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-
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HH:MM:SS
|
YY-MM-DD
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I2C
|
1.8
3
3.3
5
|
800
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12.5
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NV SRAM
|
56
|
0
|
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DS1339
|
-
|
HH:MM:SS
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YY-MM-DD
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I2C
|
2
3
3.3
5
|
400
|
6
|
None
|
-
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2
|
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DS1501
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HH:MM:SS
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YYYY-MM-DD
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Bytewide
|
3.3
5
|
-
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12.5
6
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NV SRAM
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256
|
1
|
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DS1511
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|
HH:MM:SS
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YYYY-MM-DD
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Bytewide
|
3.3
5
|
-
|
-
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NV SRAM
|
256
|
1
|
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DS1556
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|
HH:MM:SS
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YYYY-MM-DD
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Bytewide
|
3.3
5
|
-
|
-
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NV SRAM
|
128K
|
1
|
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DS1557
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|
HH:MM:SS
|
YYYY-MM-DD
|
Bytewide
|
3.3
5
|
-
|
-
|
NV SRAM
|
512K
|
1
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| See All Timekeeping & Real-Time Clocks (86) |
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