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AMD (Xilinx) PAL18L4CNL — Discrete Semiconductors
AMD (Xilinx)

PAL18L4CNL Electrically Erasable PAL Device, 40 ns, 28-PLCC

MPNPAL18L4CNL
End of Life

PAL18L4CNL, Electrically Erasable PAL Device, Speed 40 ns, Package Bulk, Mounting Type Surface Mount, Package / Case 28-LCC (J-Lead), Voltage - Input 4.75V ~ 5.25V, Supplier Device Package 28-PLCC (11.51x11.51).

$8.0Ref. price · indicative, final on quote
PAL18L4CNL datasheet
Packaging28-LCC (J-Lead)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

PAL18L4CNL Technical Specifications
ParameterValue
Mounting typeSurface Mount
Programmable typePAL
Voltage - input4.75V ~ 5.25V
Speed40 ns
PackageBulk
Case28-LCC (J-Lead)

Product details

5 V registered PAL in a 28-PLCC — timing and supply constraints

The PAL18L4CNL is an electrically erasable PAL device with a 40 ns propagation delay. It operates on a 4.75 V to 5.25 V supply.

Programming and JEDEC file support

As an electrically erasable PAL, the PAL18L4CNL is programmed using standard PAL programmer hardware that supports 28-pin PLCC devices. A JEDEC fuse-map file is required; most legacy PAL compilers (CUPL, PALASM) can generate the.JED output. The part is in-system reprogrammable if the programmer supports the PLCC footprint — no UV erasure needed.

Frequently asked questions

Is PAL18L4CNL equivalent to GAL18V10?

The GAL18V10 is a different architecture (generic array logic) and typically offers faster propagation delays (10–15 ns) and more flexibility. The PAL18L4CNL is a registered PAL with fixed AND/OR structure; pin compatibility is not guaranteed. They are not direct equivalents.

What is PAL18L4CNL's listed speed?

The listed propagation delay is 40 ns.

Does PAL18L4CNL have a JEDEC file for programming?

Yes — the part is programmed via a standard JEDEC fuse-map file generated by PAL compilers like CUPL or PALASM. The programmer must support 28-pin PLCC devices.