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Maxim > Solutions > Cable Modems and CATV

Nonvolatile Memory

DATA SHEETS
Display Title/Parts Key Advantages
QV  PDF 3.3V 8Mb Nonvolatile SRAM
DS1265W

QV  PDF 3.3V 2048kb Nonvolatile SRAM
DS1249W

QV  PDF 3.3V 16Mb Nonvolatile SRAM
DS1270W

3.3V Nonvolatile SRAMs Provide Up to 16Mb Density
QV  PDF Y2K-Compliant, Nonvolatile Timekeeping RAMs
DS1747, DS1747P

QV  PDF Y2K-Compliant, Nonvolatile Timekeeping RAMs
DS1746, DS1746P

QV  PDF Y2K-Compliant, Nonvolatile Timekeeping RAMs
DS1744, DS1744P

QV  PDF Y2K-Compliant, Nonvolatile Timekeeping RAMs
DS1743, DS1743P

QV  PDF 4096k Nonvolatile SRAM with Battery Monitor
DS1350AB, DS1350Y

QV  PDF 1024k Nonvolatile SRAM with Battery Monitor
DS1345AB, DS1345Y

QV  PDF 256k Nonvolatile SRAM with Battery Monitor
DS1330AB, DS1330Y

QV  PDF 16M Nonvolatile SRAM
DS1270AB, DS1270Y

QV  PDF 8M Nonvolatile SRAM
DS1265AB, DS1265Y

QV  PDF 128k x 16 Nonvolatile SRAM
DS1258AB, DS1258Y

QV  PDF 4096k Nonvolatile SRAM
DS1250AB, DS1250Y

QV  PDF 2048k Nonvolatile SRAM
DS1249AB, DS1249Y

QV  PDF 1024k Nonvolatile SRAM
DS1245AB, DS1245Y

QV  PDF 256k Nonvolatile SRAM
DS1230AB, DS1230Y

QV  PDF 64k Nonvolatile SRAM
DS1225AB, DS1225AD

QV  PDF 16k Nonvolatile SRAM
DS1220AB, DS1220AD




Key Specifications:  Memory (EPROM, EEPROM, ROM, NV SRAM)
Part Number Memory Type Memory Size Bus Type Real Time Clock DIP w/Int. Batt. Pwr. Cap Pckg. Battery Monitor With GPIO VSUPPLY
(V)
VSUPPLY
(V)
min max
DS1249W  NV SRAM 256K x 8 Parallel No Yes No No No 3 3.6
DS1265W  1M x 8 Yes No No 3 3.6
DS1270W  2M x 8 Yes No No 3 3.6
DS1220AB  2K x 8 Yes No No 4.75 5.25
DS1220AD  2K x 8 Yes No No 4.5 5.5
DS1225AB  8K x 8 Yes No No 4.75 5.25
DS1225AD  8K x 8 Yes No No 4.5 5.5
DS1230AB  32K x 8 Yes Yes No 4.75 5.25
DS1230Y  32K x 8 Yes Yes No 4.5 5.5
DS1245AB  128K x 8 Yes Yes No 4.75 5.25
DS1245Y  128K x 8 Yes Yes No 4.5 5.5
DS1249AB  256K x 8 Yes No No 4.75 5.25
DS1249Y  256K x 8 Yes No No 4.5 5.5
DS1250AB  512K x 8 Yes Yes No 4.75 5.25
DS1250Y  512K x 8 Yes Yes No 4.5 5.5
DS1265AB  1M x 8 Yes No No 4.75 5.25
DS1265Y  1M x 8 Yes No No 4.5 5.5
DS1270AB  2M x 8 Yes No No 4.75 5.25
DS1270Y  2M x 8 Yes No No 4.5 5.5
DS1330AB  32K x 8 No Yes Yes 4.75 5.25
DS1330Y  32K x 8 No Yes Yes 4.5 5.5
DS1345AB  128K x 8 No Yes Yes 4.75 5.25
DS1345Y  128K x 8 No Yes Yes 4.5 5.5
DS1350AB  512K x 8 No Yes Yes 4.75 5.25
DS1350Y  512K x 8 No Yes Yes 4.5 5.5
See All Memory (EPROM, EEPROM, ROM, NV SRAM) (52)

Key Specifications:  Timekeeping & Real-Time Clocks
Part Number Date/ Time Format Interface VSUPPLY
(V)
Memory Type Memory Size
(Bytes)
Time of Day Alarms
hh = sec/100
DS1743  YYYY-MM-DD/ HH:MM:SS Bytewide
3.3
5
NV SRAM 8K 0
DS1744  32K
DS1746  128K
DS1747  512K
See All Timekeeping & Real-Time Clocks (80)



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