| Picture | ES Part No. | Part No | Stock | Price | Datasheet | Pb Free | RoHS | Description | Vendor | Package / Case | Packaging |
| | | | | | | | | | | |
 | 0339-0098-2 | NE555D | 2,399 | 6.80 |  | PB-Free | RoHS | CMOS General Purpose Timer | HTC | SOIC-8 | TAPE & REEL |
 | 1522-0207-7 | MCP79411T-I/SN | 1,000 | 54.48 | | PB-Free | RoHS | Battery-Backed I2C Real-Time Clock/Calendar with SRAM 64 Bytes, 1 Kbit EEPROM, Protected EEPROM, with EUI-48 MAC Address | MICROCHIP | SOIC-8 | TAPE & REEL |
| 0035-1444-3 | MCP79411-I/SN | 164 | 57.93 | | PB-Free | RoHS | Battery-Backed I2C Real-Time Clock/Calendar with SRAM 64 Bytes, 1 Kbit EEPROM, Protected EEPROM, with EUI-48 MAC Address | MICROCHIP | SOIC-8 | TUBE |
| 0035-1813-8 | MCP7940NT-I/SN | 2,920 | 48.26 | | PB-Free | RoHS | Battery-Backed I2C Real-Time Clock/Calendar(RTCC) with SRAM 64Bytes | MICROCHIP | SOIC-8 | TAPE & REEL |
| 1522-0104-7 | MCP7940NT-I/SN | 150 | 86.50 | | PB-Free | RoHS | Battery-Backed I2C Real-Time Clock/Calendar(RTCC) with SRAM 64Bytes | MICROCHIP | SOIC-8 | TAPE & REEL |
| 0035-1443-0 | MCP7940N-I/SN | 3,231 | 52.13 | | PB-Free | RoHS | Battery-Backed I2C Real Time Clock/Calendar with SRAM 64 Bytes, Vcc = 1.8V to 5.5V | MICROCHIP | SOIC-8 | TUBE |
 | 0035-1674-5 | MCP7940N-I/P | 361 | 49.54 | | PB-Free | RoHS | Battery-Backed I2C Real-Time Clock-Calendar with SRAM 64 Bytes, Automatic Switchover to Battery Backup | MICROCHIP | PDIP-8 | TUBE |
 | 0223-0039-4 | ISL12028IBZ | 1,137 | 63.24 | | PB-Free | | Real Time Clock/Calendar with EEPROM Automatic Backup to Battery or SuperCap | INTERSIL/RENESAS | SOIC-14 | TUBE |
 | 1043-0001-7 | IN1363DT | 2,463 | 18.11 | | PB-Free | RoHS | CMOS LIS Real Time Watch with Calendar,Alarm,Timer I2C Interface, | IK SEMICON | SOP-8 | TAPE & REEL |
 | 0051-0025-7 | HT1382 | 64 | 26.42 | | PB-Free | RoHS | Low Power Real Time Clock and Calendar with EEPROM 4 Bytes, Integrated Oscillator Load Capacitors 12.5pF, I2C Serial Interface. | HOLTEK | PDIP-8 | TUBE |
| 0364-0002-9 | HA17555 | 481 | 25.64 | | PB-Free | RoHS | Precision Timer | RENESAS | PDIP-8 | TUBE |
 | 0067-0090-3 | DS3231SN#-T/R | 0 | 182.50 | | PB-Free | RoHS | RTC Extremely Accurate I2C-Integrate RTC/TCXO/CRYSTAL | DALLAS/MAXIM | SOIC-16 | TAPE & REEL |
| 0126-0181-8 | DS3231SN#T&R | 2,683 | 142.40 | | PB-Free | RoHS | Extremely Accurate I2C Real-Time Clock (RTC), Integrated Temperature-Compensated Crystal Oscillator (TCXO) and Crystal | MAXIM INTEGRATED | SOIC-16 | TAPE & REEL |
| 0067-0085-4 | DS1307Z+T/R | 4,161 | 31.03 | | PB-Free | RoHS | 64x8 Serial Real Time Clock, 56 Bytes RAM 2-Wire, Bi-Directional Bus | DALLAS/MAXIM | SOIC-8 | TAPE & REEL |
| 0067-0112-5 | DS1307N+ | 0 | 73.82 | | PB-Free | RoHS | 64 x 8, Serial, I2C Real-Time Clock, 56 Bytes of NV SRAM | DALLAS/MAXIM | PDIP-8 | TUBE |
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