So I couldn't find much, but here it is.
The Phillips PC74HCT04P is apparently a TTL Hex Inverter, not sure how much help that is.
I also found this post, which claims that the 5458A is a cloned DSP-1, and that it is used in bootleg SNES cartridges. It has this picture:
For posterity, here is that post's text:
Here are some examples of bootleg carts from back in the day, with
The one on the left is a surprisingly good quality bootleg copy of
Mario Kart - the board seems to be electrically a 1:1 clone of the
SHVC-1K1B board that the real Mario Kart used - the CIC is the chip
marked "TEN-E" at the bottom and the chip marked 5458A is a cloned
The board at the top right is a bootleg of Super Street Fighter II -
the CIC here is the chip marked "CIVIC 74LS11" - which seems a strange
choice since a real 74LS11 (which is a triple 3-input AND gate) is in
a 14 pin package and not 16 - it's also using a 16 bit ROM which is
why it needs the pair of 'LS257 multiplexers to select which byte to
send to the console. Although the board has space for decoupling caps,
they haven't been installed.
Both of these are running exact 1:1 copies of the original game ROM.
The final board on the lower right is a good example of a hacked up
bootleg - the game is Hudson's J-League Super Soccer '95, but the code
has been modified to operate without backup memory - the CIC here is
marked "D1 9515" this board also has no decoupling caps and the ROM is
a COB type covered with resin (AKA "glob-top").
The clone CICs are exact copies of the originals on a functional level
- I've removed them from bootleg boards and installed them into original Nintendo boards and they work exactly like the real ones.
So it's a bit sketchy, but it does seem like your cards are probably from old bootleg SNES cartridges. Though they look in pretty bad shape and I wouldn't put them in any machine that I cared about.