EPROM: Difference between revisions

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__FORCETOC__
__FORCETOC__
For eetime results see [[EPROM Sensitivity]]


==Xenon erasure==
==Xenon erasure==
These emit very high peak intensity and seem to erase EPROMs faster
https://www.youtube.com/watch?v=_sSuzDg4ntA
https://www.youtube.com/watch?v=_sSuzDg4ntA


"It seems (because I got it by net auction and don't know exact company of this product), Xenon flasher for UV-rom erasing..."
"It seems (because I got it by net auction and don't know exact company of this product), Xenon flasher for UV-rom erasing..."
"5 seconds possible"




Line 11: Line 18:
Dataman Strobe Erase
Dataman Strobe Erase


==mcmaster==
10-30 seconds typical
 
 
McMaster 2021-02-23
 
*Tried super high power strobe light
*Tried party light
*Neither erased EPROM


===PE-TL866-8===


*PE-140T
McMaster working EPROM strobe
*TL866
*8" akro mills box
*Put in corner, spaced off with 1.5" t-slot


50%: the first time that 50% or more of bits are reported erased
*https://www.youtube.com/shorts/GX4KcLDCiII
*RC 250B Xenon strobe
*Erase EPROM mostly ~10 seconds


120%: when all of the bits have been erased consistently for 20% of the runtime (actually 20% / 80% => 25% more than erased)


https://cdn1.goughlui.com/wp-content/uploads/2016/04/eprom-erase-speed.gif
==Spectroline PE-140T==
McMaster "gold standard" EPROM eraser. This was pretty common at one time. There are a lot on eBay but unfortunately most are missing the tray
[https://www.digchip.com/datasheets/download_datasheet.php?id=3667498&part-number=PE-140T Datasheet]
{| class="wikitable"
{| class="wikitable"
|Model
|Automatic
Timer
Shut-Off
|Chip
Erasing
Capacity*
|Typical intensity
(uW/cm2)
|-
|PE-140
|No
|9
|8,000
|-
|PE-140T
|Yes
|9
|8,000
|-
|-
!Vendor
|PE-240T
!Model
|Yes
!Setup
|12
!Log file
|9,600
!Passes
!Erase 50% (u)
!Erase 50% (std)
!Erase 120% (u)
!Erase 120% (std)
!Note
|-
|-
|
|PL-265T
|M27128A
|Yes
|PE-TL866-8
|30
|2018-08-23_05_m27128a
|9,600
|-
|PR-125T
|Yes
|25
|25
|
|17,000
|
|932.3
|9.5
|
|-
|-
|
|PR-320T
|M27128A
|Yes
|PE-TL866-8
|42
|2018-08-23_06_m27128a
|17,000
|1
|112.3
|
|
|
|
|-
|-
|
|PC-1100A
|
|Yes
|
|84
|
|18,500
|
|
|
|
|
|
|-
|-
|
|PC-2200A
|
|Yes
|
|168
|
|18,500
|
|
|
|
|
|
|-
|-
|
|PC-3300A
|
|Yes
|
|252
|
|18,500
|
|
|
|
|
|
|-
|-
|
|PC-4400A
|
|Yes
|
|336
|
|18,500
|
|
|
|
|
|
|-
|-
|
|PC-4420A
|
|Yes
|
|336
|
|50,000**
|
|
|
|
|
|
|-
|-
|
|PC-8820A
|
|Yes
|
|840
|
|70,000**
|
|
|
|
|
|
|-
|-
|
|PC-9920A
|
|Yes
|
|940
|
|70,000**
|
|
|
|
|
|
|}
|}
TL866 adapter: https://twitter.com/johndmcmaster/status/1505276794156376066


===M27128A===
*There is also a larger version now that covers the entire eraser


  M27128A @DIP28 erase avg: 932.3 sec, stdev: 9.5 sec
===Bulb===
  912.0
Official bulb: Spectronics BLE-2537S
  928.2
  928.1
  941.7
  935.3
  926.5
  926.8
  919.7
  944.2
  925.6
  941.4
  929.2
  932.5
  932.6
  956.2
  926.4
  926.5
  925.9
  941.6
  944.1
  920.1
  934.8
  935.2
  929.7
  943.9


Walmart page claims OEM is USHIO G4T5


==TMS27C256==
Generic name appears to be F4T5/GL


  TMS27C256 @DIP28 @ 9 passes
  120% erase avg: 2563.2 sec, stdev: 220.7 sec
    2077.6
    2300.7
    2458.8
    2490.3
    2621.7
    2658.7
    2704.9
    2744.7
    2783.6
    2790.9
  50% erase avg: 1398.0 sec, stdev: 118.7 sec
    1123.6
    1260.6
    1340.4
    1389.3
    1426.0
    1456.9
    1475.5
    1491.0
    1501.6
    1514.6


Spec sheet for similar bulb:


https://cdn1.goughlui.com/wp-content/uploads/2016/04/eprom-erase-speed.gif
*Wattage: 4W
*SuperLife: 10,000hrs
*Base: Mini Bi-Pin
*Lamp Shape: T5
*Glass: Clear Quartz Glass
*UV Emission: 254nm
*Maximum Overall Length: 6"
 
<br />McMaster bulbs 2022-03-21:
 
*Bulb 1
**hard to read
**KINGRATE
**UVC 64TS
*Bulb 2
**BLE-2537S
**SPECTRONICS CORP

Latest revision as of 09:01, 30 March 2022


For eetime results see EPROM Sensitivity

Xenon erasure

These emit very high peak intensity and seem to erase EPROMs faster


https://www.youtube.com/watch?v=_sSuzDg4ntA

"It seems (because I got it by net auction and don't know exact company of this product), Xenon flasher for UV-rom erasing..."

"5 seconds possible"


http://www.grifo.it/PROG/uk_Eraser.htm

Dataman Strobe Erase

10-30 seconds typical


McMaster 2021-02-23

  • Tried super high power strobe light
  • Tried party light
  • Neither erased EPROM


McMaster working EPROM strobe


https://cdn1.goughlui.com/wp-content/uploads/2016/04/eprom-erase-speed.gif

Spectroline PE-140T

McMaster "gold standard" EPROM eraser. This was pretty common at one time. There are a lot on eBay but unfortunately most are missing the tray Datasheet

Model Automatic

Timer Shut-Off

Chip

Erasing Capacity*

Typical intensity

(uW/cm2)

PE-140 No 9 8,000
PE-140T Yes 9 8,000
PE-240T Yes 12 9,600
PL-265T Yes 30 9,600
PR-125T Yes 25 17,000
PR-320T Yes 42 17,000
PC-1100A Yes 84 18,500
PC-2200A Yes 168 18,500
PC-3300A Yes 252 18,500
PC-4400A Yes 336 18,500
PC-4420A Yes 336 50,000**
PC-8820A Yes 840 70,000**
PC-9920A Yes 940 70,000**

TL866 adapter: https://twitter.com/johndmcmaster/status/1505276794156376066

  • There is also a larger version now that covers the entire eraser

Bulb

Official bulb: Spectronics BLE-2537S

Walmart page claims OEM is USHIO G4T5

Generic name appears to be F4T5/GL


Spec sheet for similar bulb:

  • Wattage: 4W
  • SuperLife: 10,000hrs
  • Base: Mini Bi-Pin
  • Lamp Shape: T5
  • Glass: Clear Quartz Glass
  • UV Emission: 254nm
  • Maximum Overall Length: 6"


McMaster bulbs 2022-03-21:

  • Bulb 1
    • hard to read
    • KINGRATE
    • UVC 64TS
  • Bulb 2
    • BLE-2537S
    • SPECTRONICS CORP
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