Overview
The MC10EP016FAG is a high-speed synchronous, presettable, and cascadeable 8-bit binary counter produced by onsemi. It is part of the ECLinPS™ family and operates similarly to the MC10E016. This component is designed for high-performance applications, featuring internal feedback to the terminal count (TC) gated by the TCLD (Terminal Count Load) pin. This allows the counter to function either continuously or as a programmable counter, depending on the TCLD pin state. The device supports both PECL (Positive ECL) and NECL (Negative ECL) modes, making it versatile for various system designs.
Key Specifications
| Characteristic | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Propagation Delay (CLK to Q) | 250 | 300 | 350 | ps |
| Maximum Frequency | - | - | 800 | MHz |
| Power Supply Current (PECL, VCC = 3.3 V) | 120 | 160 | 200 | mA |
| Output HIGH Voltage (PECL, VCC = 3.3 V) | 2165 | 2290 | 2415 | mV |
| Output LOW Voltage (PECL, VCC = 3.3 V) | 1365 | 1490 | 1615 | mV |
| Input HIGH Voltage (Single-Ended, PECL) | 2090 | 2415 | 2480 | mV |
| Input LOW Voltage (Single-Ended, PECL) | 1365 | 1690 | 1755 | mV |
| Operating Temperature Range | -40 | - | 85 | °C |
| Storage Temperature Range | -65 | - | 150 | °C |
Key Features
- High-speed synchronous, presettable, and cascadeable 8-bit binary counter
- Internal feedback to TC gated by the TCLD pin for programmable counter operation
- Supports both PECL and NECL modes
- Differential clock input for improved performance
- COUT and COUT differential outputs (not for cascade configuration)
- Asynchronous master reset
- Open input default state and safety clamp on inputs
- VBB output for reference voltage
- Pb-free packages available
Applications
The MC10EP016FAG is suitable for various high-speed digital applications, including:
- Cascading multiple counters to achieve wider bit widths (e.g., 16-bit, 32-bit counters)
- Programmable dividers with divide ratios from 2 to 256
- High-frequency counting and timing applications
- Systems requiring synchronous and presettable counting functions
For cascading multiple EP016 devices, the active low terminal count (TC) output and count enable input (CE) facilitate the process. External OR gates may be necessary for counters wider than 16 bits. The device can also be used as a programmable divider by utilizing the TCLD pin to reload the counter upon reaching terminal count.
Q & A
- What is the maximum frequency of operation for the MC10EP016FAG?
The maximum frequency of operation for the MC10EP016FAG is up to 800 MHz.
- What are the operating voltage ranges for the MC10EP016FAG in PECL and NECL modes?
In PECL mode, VCC ranges from 3.0 V to 5.5 V with VEE = 0 V. In NECL mode, VCC = 0 V with VEE ranging from -3.0 V to -5.5 V.
- How does the TCLD pin function in the MC10EP016FAG?
The TCLD pin controls the terminal count feedback. When TCLD is HIGH, the counter reloads upon reaching terminal count; when LOW, the counter continues counting continuously.
- What is the purpose of the COUT and COUT outputs in the MC10EP016FAG?
The COUT and COUT outputs provide differential outputs but should not be used in cascade configurations. Only the TC output should be used for cascading.
- How can multiple MC10EP016FAG devices be cascaded?
Multiple devices can be cascaded using the active low terminal count (TC) output and count enable input (CE). For counters wider than 16 bits, external OR gates are necessary.
- What is the typical propagation delay of the MC10EP016FAG?
The typical propagation delay from CLK to Q is 300 ps.
- What are the input and output voltage levels for the MC10EP016FAG in PECL mode?
In PECL mode, input HIGH voltage is typically 2415 mV, input LOW voltage is typically 1490 mV, output HIGH voltage is typically 2290 mV, and output LOW voltage is typically 1490 mV.
- How does the MC10EP016FAG handle unused outputs?
Unused outputs should be left unterminated to minimize noise and power dissipation.
- What is the storage temperature range for the MC10EP016FAG?
The storage temperature range is from -65°C to 150°C.
- Is the MC10EP016FAG available in Pb-free packages?
