AM25LS2521 Eight Bit Equal-to Comparator 2 inputs for 8-bit words with provision for expansion or external enabling. The matching of the two words plus a logic LOW on the /E input produces an active LOW at the Output. Pins : 1 : /E 2 : A0 3 : B0 4 : A1 5 : B1 6 : A2 7 : B2 8 : A3 9 : B3 10: Gnd 11: A4 12: B4 13: A5 14: B5 15: A6 16: B6 17: A7 18: B7 19: Output 20: Vcc ______________________________________
Without guaranty! Mistakes are possible. Please ask via email if you find a strange value!
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AM25LS2537 One-of-Ten Decoder with Three-State Outputs and Polarity Control: Pins : 1 : Y2 2 : Y1 3 : Y0 4 : POL Polarity input, if HIGH,the outputs are active-LOW 5 : /OE 6 : A input 7 : B 8 : Y5 9 : Y6 10: Gnd 11: Y7 12: Y8 13: Y9 14: E2 15: /E1 16: C 17: D 18: Y4 19: Y3 20: Vcc For /OE=L, /E1=L, E2=H : D C B A Y0 Y1 Y2 ..... Y9 (for POL = L:) L L L L H L L L L L L H L H L L L L H L L L H L ..... H L L H L L L H L H L L L L L L ..... H H H H L L L L All other combinations of /OE, /E1, E2 : Disable __________________________________________
Without guaranty! Mistakes are possible. Please ask via email if you find a strange value!
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AT38H256-20...
I have the datasheet in a databook ATMEL 1993
Pins:
1 : A14
2 : A12
3 : A7
4 : A6
5 : A5
4 : A4
7 : A3
8 : A2
9 : A1
10 : A0
11 : Q1
12 : Q2
13 : Q3
14 : Gnd
15 : Q4
16 : Q5
17 : Q6
18 : Q7
19 : Q8
20 : /CE
21 : A10
22 : /OE
23 : A11
24 : A9
25 : A8
26 : A13
27 : /WE
28 : Vcc
Code for Package:
AT38H256-20Nc :Plastic DIL 0.3"wide = 7.6 to 8.3mm
...Xc : SOIC J-Leaded, pitch 1.27mm
(max 8.8mm wide,18.1 mm long)
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Without guaranty! Mistakes are possible. Please ask via email if you find a strange value!
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Alle Angaben ohne Garantie. Fehler beim Abschreiben sind möglich. Wenn Sie seltsame Werte entdecken, scheuen Sie sich nicht, per email nachzufragen!