I have 3 SanDisk TSOP32 chips: one has 128B printed on it, the other two have
256B on them.  The other markings seem to be OEM, with no standard part number.

Klaus found a Leapfrog DIDJ cart with a SanDisk TSOP32 chip and also TSOP48
pads and toned out this pinout.

Turns out the 128 and 256 are megabytes, not megabits.  The page size is 512
bytes, which is unusual for a 256MB chip.



       +----------------------------------------------+
    NC-|01                                          32|-NC
   VSS-|02                                          31|-NC
   R/B-|03                  SanDisk                 30|-I/O7
    NC-|04                   NAND                   29|-I/O6
    RE-|05                                          28|-I/O5
    CE-|06                   32PIN                  27|-I/O4
    NC-|07                                          26|-VCC
   VCC-|08                                          25|-VSS
   VSS-|09                                          24|-NC
    NC-|10                                          23|-I/O3
    NC-|11                                          22|-I/O2
   CLE-|12                                          21|-I/O1
   ALE-|13                                          20|-I/O0
    WE-|14                                          19|-NC
    WP-|15                                          18|-NC
    NC-|16                                          17|-NC
       +----------------------------------------------+
       
I made an adapter to map the pins to the standard TSOP48 pinout,
then added a user-defined chip to XGPro.
       
       XGPro info
       Algorithm NAND8_TSOP48
       Flash Size 270336 MB
       Page Size 512
       Spare Size 16
       Pages Per Block 64
       Block Size 32KB + 1KB
       Total Blocks 8192
       Device Size 256MB + 8MB
       Bus Width 8
       CE# Counter 1
       nCE# Pin 1
       nRB# Pin 1