• High Voltage Type (20V Rating)
• 3-State Parallel Outputs for Connection to Common Bus
• Separate Serial Outputs Synchronous to Both Positive and Negative Clock Edges for Cascading
• Medium Speed Operation – 5MHz at 10V (typ)
• Quiescent Current at 20V
• Maximum Input Current of 1A at 18V Over Full Package Temperature Range; 100nA at 18V and +25oC
• Noise Margin (Over Full Package/Temperature Range) – 1V at VDD = 5V – 2V at VDD = 10V – 2.5V at VDD = 15V
• 5V, 10V and 15V Parametric Ratings

• High Speed Binary Ripple Carry Counter
• Separate Reset Input Pin
• Wide Operating Voltage Range: 2.0 to 6.0 V
• Output Drive up to 10 LS-TTL Loads
• Equivalent to CD4060

• Supply voltage ranges from 3v to 18v
• Set-up-time is 150, 70, and 40ns at 5v, 10v, and 15v respectively
• Strobe pulse width is 400, 160, and 100ns at 5v, 10v, and 15v respectively
• Hold time is zero
• 100% tested for quiescent current at 20v
• Having high input current of 1uA (max.) at 18v
• Maximum output current sourcing of 25mA
• Operating temperature ranges from -40 C to 85 C
• Storage temperature ranges from -65 C to 150 C

• Low-voltage and Standard-voltage Operation
  • 2.7 (VCC = 2.7V to 5.5V)
  • 1.8 (VCC = 1.8V to 5.5V)
• Internally Organized 128 x 8 (1K), 256 x 8 (2K), 512 x 8 (4K),
• 1024 x 8 (8K) or 2048 x 8 (16K)
• Two-wire Serial Interface
• Schmitt Trigger, Filtered Inputs for Noise Suppression
• Bidirectional Data Transfer Protocol
• 100 kHz (1.8V) and 400 kHz (2.7V, 5V) Compatibility
• Write Protect Pin for Hardware Data Protection
• 8-byte Page (1K, 2K), 16-byte Page (4K, 8K, 16K) Write Modes
• Partial Page Writes Allowed
• Self-timed Write Cycle (5 ms max)
• High-reliability
  • Endurance: 1 Million Write Cycles
  • Data Retention: 100 Years
• Automotive Devices Available
• 8-lead JEDEC PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini-MAP (MLP 2×3), 5-lead SOT23, 8-lead TSSOP and 8-ball dBGA2 Packages
• Die Sales: Wafer Form, Waffle Pack and Bumped Wafers

The DS1307 serial real-time clock (RTC) is a lowpower, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM. Address and data are transferred serially through an I2C, bidirectional bus. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. The DS1307 has a built-in power-sense circuit that detects power failures and automatically switches to the backup supply. Timekeeping operation continues while the part operates from the backup supply.

The TL494 device incorporates all the functions required in the construction of a pulse-width-modulation (PWM) control circuit on a single chip. Designed primarily for power-supply control, this device offers the flexibility to tailor the power-supply control circuitry to a specific application. The TL494 device contains two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, a 5-V, 5%-precision regulator, and output-control circuits.The TL494C device is characterized for operation from 0C to 70C. The TL494I device is characterized for operation from 40C to 85C.