| Part Number | Order | Mounting Style | Package/Case | RTC Bus Interface | Date Format | Time Format | Battery Backup Switching | RTC Memory Size | Supply Voltage - Max | Supply Voltage - Min | Minimum Operating Temperature | Maximum Operating Temperature | Packaging | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
NXP Semiconductors   | PCF8583T Real Time Clock CLK/CALENDAR 240X8 RTC IC | 1 : 297,160 Rials10 : 278,588 Rials100 : 260,015 Rials | SMD/SMT | SOT-176-1 | Serial, 2-Wire, I2C | YY-MM-DD | HH:MM:SS:hh - 12hr, 24hr | No Backup Switching | 240B | 6V | 1V | 40C- | 85C+ | Reel |
Microchip Technology | MCP7940NT-I/SN Real Time Clock I2C GP RTCC 64B SRAM | 1 : 190,594 Rials10 : 185,111 Rials100 : 179,629 Rials | SMD/SMT | SOIC-8 | Serial, 2-Wire, I2C | DW:DM:M:Y | HH:MM:SS | Backup Switching | 64B | 5.5V | 1.8V | 40C- | 85C+ | Tube |
Texas Instruments | TPL5110DDCR Timers & Support Products Ultr LowPowrTimerMOS drivr MOSFET Powr | 1 : 240,380 Rials10 : 231,795 Rials100 : 223,210 Rials | SMD/SMT | SOT-23-Thin-6 | 5.5V | 1.8V | 40C- | 105C+ | Reel | |||||
Intersil | ISL1208IB8Z Real Time Clock I2C REAL TIME CLOCK/ CALENDAR 8LD | 1 : 157,080 Rials10 : 147,262 Rials100 : 137,445 Rials | SMD/SMT | SOIC-8 | Serial, I2C | DW:DM:M:Y | HH:MM:SS | Backup Switching | 2B | 5.5V | 2.7V | 40C- | 85C+ | Tube |
NXP Semiconductors | PCF8593T Real Time Clock CLOCK/CALENDAR RTC IC | 1 : 804,797 Rials10 : 776,054 Rials100 : 747,312 Rials | SMD/SMT | SOIC-8 | Serial, 2-Wire, I2C | YY-MM-DD-dd | HH:MM:SS:hh - 12hr, 24hr | No Backup Switching | 8B | 6V | 1V | 40C- | 85C+ | Reel |
STMicroelectronics | NE555N Timers & Support Products General Purp Single | 1 : 69,615 Rials10 : 67,129 Rials100 : 64,642 Rials | Through Hole | PDIP-8 | 16V | 4.5V | 0C | 70C+ | Tube | |||||
Texas Instruments | NE556N Timers & Support Products Dual Precision | Through Hole | PDIP-14 | 16V | 4.5V | 0C | 70C+ | Tube | ||||||
Texas Instruments | NE556DR Timers & Support Products DUAL PRECISION TIMER | SMD/SMT | SOIC-14 | 16V | 4.5V | 0C | 70C+ | Reel | ||||||
Texas Instruments | NE555P Timers & Support Products Precision | Through Hole | PDIP-8 | 16V | 4.5V | 0C | 70C+ | Tube | ||||||
Texas Instruments | NE555DR Timers & Support Products Precision | SMD/SMT | SOIC-8 | 16V | 4.5V | 0C | 70C+ | Reel | ||||||
Microchip Technology | MCP79410-I/SN Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM ID | 1 : 191,947 Rials10 : 185,092 Rials100 : 178,236 Rials | SMD/SMT | SOIC-8 | Serial, I2C | DW:DM:M:Y | HH:MM:SS | Backup Switching | 64B | 5.5V | 1.8V | 40C- | 85C+ | Tube |
Maxim Integrated | DS3231SN Real Time Clock Integrated RTC/TCXO/Crystal | 1 : 562,275 Rials10 : 542,194 Rials100 : 522,112 Rials | SMD/SMT | SOIC-16 | Serial | HH:MM:SS | Backup Switching | 5.5V | 2.3V | 40C- | 85C+ | Tube | ||
Maxim Integrated | +DS1307Z Real Time Clock 64 x 8, Serial, I C Real-Time Clock | 1 : 137,307 Rials10 : 134,898 Rials100 : 132,490 Rials | SMD/SMT | SOIC-8 | Serial, I2C | YY-MM-DD | HH:MM:SS | 56B | 5.5V | 4.5V | 0C | 70C+ | Tube | |
Maxim Integrated | DS1307 Real Time Clock 64x8 Serial I2C RTC | 1 : 220,150 Rials10 : 212,288 Rials100 : 204,425 Rials | Through Hole | PDIP-8 | Serial, I2C | YY-MM-DD | HH:MM:SS | 56B | 5.5V | 4.5V | 0C | 70C+ | Reel | |
Maxim Integrated | DS1390U-33 Real Time Clock | 1 : 219,555 Rials10 : 211,714 Rials100 : 203,872 Rials | SMD/SMT | uSOP-10 | Serial | HH:MM:SS:hh | Backup Switching | 5.5V | 2.97V | 40C- | 85C+ | Reel |
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