Below is the file name reference for SLC NAND.

ONFI:
s34ml01g3_A_B_C_rD.ibs
s34ml02g3_A_B_C_rD.ibs
s34ml04g3_A_B_C_rD.ibs

SPI:
s35ml01g3_A_B_C_rD.ibs
s35ml02g3_A_B_C_rD.ibs
s35ml04g3_A_B_C_rD.ibs

A (Package Type):

b = 63-ball VFBGA 11 x 9 mm package, 0.80 mm pitch (VBM063)
t = 48 pin Thin Small Outline Package Standard Pinout (TSO048)
g = 8 pin Land Grid Array (LGA008)


B (Temperature Range):
	
i = Industrial (-40C to 90C)
v = Automotive In-Cabin (-40C to 110C)


C (VIO Voltage):

33 = VCC = 2.7V to 3.6V, typ VCC = 3.3V


D (revision number)



Example:

The IBIS file name 's34ml02g3_b_i_33_r1.ibs' is for s34ml02g3 in 
VFBGA 11x9 package (VBM063) (X8 ONFI/ LEGACY) for typical VIO of 3.3V, 
with industrial temperature and ibis model revision of 1.0.