Overview
The CD40103BE is a CMOS 8-stage presettable synchronous down counter produced by Texas Instruments. This component is part of the CD40103B series and is configured as a single 8-bit binary counter. It features control inputs for enabling or disabling the clock, clearing the counter to its maximum count, and presetting the counter either synchronously or asynchronously. The counter is designed for medium-speed operation and is fully compatible with JEDEC Tentative Standard No. 13B for B Series CMOS devices.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | PDIP (N), SOP (NS), TSSOP (PW), CDIP (J) |
| Pins | 16 |
| Operating Temperature Range (°C) | -55 to 125 |
| Maximum Clock Frequency (typ.) @ VDD= 10V | 3.6 MHz |
| Maximum Input Current | 1 µA at 18 V (full package-temperature range), 100 nA at 18 V and 25°C |
| Noise Margin | 1 V at VDD= 5 V, 2 V at VDD= 10 V, 2.5 V at VDD= 15 V |
| Quiescent Current Test | 100% tested at 20 V |
Key Features
- Synchronous or asynchronous preset capability
- Medium-speed operation with a typical clock frequency of 3.6 MHz at VDD= 10V
- Cascadable for extended counting sequences
- Low input current: 1 µA at 18 V over the full package-temperature range, and 100 nA at 18 V and 25°C
- Standardized, symmetrical output characteristics
- Parametric ratings for 5 V, 10 V, and 15 V
- Meets JEDEC Tentative Standard No. 13B for B Series CMOS devices
Applications
- Divide-by-'N' counters
- Programmable timers
- Interrupt timers
- Cycle/program counters
Q & A
- What is the CD40103BE?
The CD40103BE is a CMOS 8-stage presettable synchronous down counter produced by Texas Instruments.
- What are the package options for the CD40103BE?
The CD40103BE is available in PDIP (N), SOP (NS), TSSOP (PW), and CDIP (J) packages.
- What is the operating temperature range of the CD40103BE?
The operating temperature range is -55°C to 125°C.
- What is the maximum clock frequency of the CD40103BE?
The maximum clock frequency is typically 3.6 MHz at VDD= 10V.
- Can the CD40103BE be cascaded?
Yes, the CD40103BE can be cascaded using the CI/CE input and CO/ZD output in either synchronous or ripple mode.
- What are the noise margin specifications for the CD40103BE?
The noise margin is 1 V at VDD= 5 V, 2 V at VDD= 10 V, and 2.5 V at VDD= 15 V.
- How is the counter reset in the CD40103BE?
The counter can be reset asynchronously to its maximum count by setting the CLEAR (CLR) input low.
- What are some common applications of the CD40103BE?
Common applications include divide-by-'N' counters, programmable timers, interrupt timers, and cycle/program counters.
- Is the CD40103BE compliant with any specific standards?
Yes, it meets all requirements of JEDEC Tentative Standard No. 13B for B Series CMOS devices.
- What is the quiescent current test specification for the CD40103BE?
The CD40103BE is 100% tested for quiescent current at 20 V.
- What are the RoHS and Green compliance statuses for the CD40103BE?
The CD40103BE is RoHS and Green compliant, meeting the EU RoHS requirements and low halogen content standards.
