Replacement EEPROM

it looks like still make it in extended temp rage in a ceramic case as JBP18S030MJ. I wonder who still uses these or what they're fixing with them.

Make me rich and I'll send you the official bipolar PROM bag phone programmer. Are you programming an MCX-90/100? There's also a Standard low-band radio I have buried somewhere that uses this bipolar PROM. You might ask on the Batlabs forum.

$10/ea from Jameco:

This might be useful:

I found this in my bag phone programming collection:

BRAND OPEN COL. TRI-STATE OPEN COL. TRI-STATE ============================================================================= Signetics 82S23 82S123 Texas Inst. 74S188 74S288 TBP18SA030 TBP18S030 AMD AM27LS18 AM27LS19 AM27S18 AM27S19 Texas Inst. TBP38SA030 TBP38S030 Harris HM7602 HM7603 MMI 53/6330 53/6331 MMI 53/63S080 53/63S081 NSC DM54S188 DM54S288 DM74S188 NSC DM82S23 DM82S123 Motorola This is for a special NAM used in some Motorolas. Requires an adapter. Fujitsu MB7056 MB7051

Well, just about any PAL with five inputs and eight outputs...

It's for a onesie? Maybe 28F64 would be easier than 27C64 to program... neither is going to be as fast as the TBP18SA030 (about 30 ns, I think).

The Control Signal Corporation (CSC) of Denver, CO used this PROM (U1) in their model CWID-50B and -51B Automatic Station Identifiers with FCC licensed Land Mobile or Amateur Radio Repeaters. The PROM held the Morse Code (CW) message -- typically FCC license callsign.

CSC CWID-50B : Owner's Manual

The original 16-pin TTL PROM (32 x 8) -- TBP18SA030 -- is obsolete (no longer production) and the 1970s programmers are rare to find. You can DIY Build an adapter to allow the usage of the more readily available 27Cxxx / 28Cxxx series EPROMS. The CSC CWID-50B manual walks you through what each bit on the PROM is used for.

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