 board_d: 1.25
 sram_fall: 2.0
 nmos_dd_min: 2.0 nmos_dv_max: 5.5
 we_ce_r_min: 1.90 we_ce_r_max: 6.00
 we_ce_f_min: 1.90 we_ce_f_max: 6.00
 add_ch_min: 1.90 add_ch_max: 6.00
 edge1_min: 4.50 edge1_max: 7.50
 edge2_min: 33.1 edge2_max: 36.1
 edge3_min: 50.4 edge3_max: 53.4
 edge4_min: 72.2 edge4_max: 75.2
