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AM26LS32A: PCN : Process & Specs

user5163865
Genius 3425 points
Part Number: AM26LS32A
Other Parts Discussed in Thread: AM26C32

Hi,

Our customer is confirming the 4M change point about AM26LS32A.

Q1
Due to the change from datasheet Rev.F to G,
From the graph of 6.8 Typical Characteristics (below, left: Rev.F, right: G),

Ioh: 0mA ~ -25mA
In the range of , the Voh level has increased by nearly 1.5V after the change.
Does this mean that the elements up to Rev.F also had drive ability at the level of the graph on the right? Or is it due to design changes?

Q2
The process has been changed to LBC9 (CMOS), but is the previous process also CMOS?
I think the LS family was initially bipolar.


Best regards,
Hiroshi

  • +1
    Guru 262970 points

    The old AM26LS32A was a bipolar device with TTL-compatible outputs. The new AM26LS32A uses a new design, and obviously has CMOS outputs. (I would not be surprised if the new AM26LS32A and the new AM26C32 actually used the same die.)

  • +1
    TI__Mastermind 45847 points

    Hi Hiroshi,

    1. Yes the new redesigned material has a higher typical drive strength because it's been redesigned with a new process- which is why there is a difference in the most recent change. So new material will typically look like graph on right and older material will act more like graph on left. That being said the boundary conditions listed in datasheet in the electrical parameters section of the datasheet are the same for both devices. 

    2. Older family was Bipolar with TTL compatible I/O as Clemens mentioned - new device is using a CMOS process. 

    Best,

    Parker Dodson