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Standard Logic (Pericom)

Standard logic Interface solutions focus on voltage level shifters and also provide the ability to translate between different I/O's such as HSTL to LVTTL/LVCMOS, SSTL to TTL, etc. Many products are bidirectional and scalable from 1-bit to +32-bits with support for communicating power from 1.5 V to 5 V.

Standard Logic (Pericom) FAQs

Is ALVTC compatible with ALVT BiCMOS logic?

Yes. ALVTC is compatible with ALVT BiCMOS logic. In comparison, ALVTC consumes much less power than ALVT BiCMOS logic.

Is there a replacement for an obsolete part?

Not all obsolete parts will have a direct replacement. However, we recommended that you contact your regional sales office.

What are the key features of FCT family?

CMOS, 3.3V (FCT3) or 5V (FCT5), 3.2ns to 7ns propagation delay, low power dissipation, -32/+64mA high drive, -12/+12mA or -24/+24mA balanced output drive, bus hold. FCT (Fast CMOS Technology) is a 5V logic family with TTL compatible input and output levels. It's the fastest 5V CMOS logic family available today in the market.

What are the key features of LVTC family?

CMOS, 2.7V to 3.6V, 3.3ns propagation delay, low power dissipation, low noise, -24/+24mA balanced output drive, bus hold. LVTC (Low Voltage Technology CMOS) is a 3.3V CMOS logic designed for "live-insertion" applications. LVTC power-up/down high-impedance feature protects the components and the main boards from being damaged during live-insertion.

What are the types of jitter?

There are several types of jitter, but the main ones are: cycle-to-cycle jitter, period jitter, half period jitter, and peak-to-peak jitter. Jitter terminology can be found in AB36: Jitter Measurement Techniques at Application Brief No. 36 or Application Note No. 27.

What is "Bus Hold"?

"Bus Hold" is a feature of the ALVCH logic family which holds the inputs of devices at their last valid logic state when the drivers go to high-impedance, thus eliminating external pull-up/down resistors.

What is hot-plug?

Hot-plug indicates that the devices, including switches populated on the motherboard (backplane), will turn off the power and signals to the hot-plug connectors during hot insertion, thus, there is no power and signal activity on the connectors while the system is still running. All Pericom switches are suitable for hot-plug.

What is the edge control circuit?

An edge control circuit is inside the buffer output circuit for dynamic output impedance which varies dependent on the output voltage for overshoot and undershoot reduction while retaining fast rising and falling edges.

What is the lead finish for Pericom products? What about lead-free?

All Pericom's products that are not lead-free are composed of 85% Sn and 15% Pb. For lead-free products, they are composed of 100% matte Sn. Lead-free products are marked and ordered with the letter "E" suffix at the end of the part number.

What is the maximum trace length that a logic device can drive?

It depends on the frequency and the capacitive load, the higher the frequency and capacitive load, the shorter the maximum trace length. The best way to determine the maximum trace length is to simulate the IBIS model.

What's the benefits of using LVTC vs. LVT?

LVTC's CMOS design consumes much less power (60% less) than LVT BiCMOS, and costs less than LVT BiCMOS.

Where can I find Mean Time Before Failure (MTBF) or Failures In Time (FIT) values for Pericom products?

FIT and MTBF data can be found at Pericom's Quality webpage.

Where can I find the information on your Pb-free and "Green" packaging?

Lead (Pb)-Free and Green information can be found on individual datasheets or Pb-Free & Green Page.

Why does ALVTC have high current drive?

ALVTC has high current drive (-32mA/64mA), so as to achieve fast speeds in heavy load applications.

Why is SOTiny Gate logic needed?

SOTiny Gate logic devices can perform simple logic functions and their tiny packages enable them to be conveniently placed where they are needed. These tiny gates can also provide quick fix to design bugs on board. These benefits make SOTiny Gate logic devices very popular in today's system designs from handheld to large systems.