 board_d: 1.25
 sram_fall: 2.0
 nmos_dd_min: 2.0 nmos_dv_max: 5.5
 we_ce_r_min: 2.18 we_ce_r_max: 5.58
 we_ce_f_min: 3.18 we_ce_f_max: 5.68
 add_ch_min: 2.18 add_ch_max: 5.68
 edge1_min: 3.50 edge1_max: 6.50
 edge2_min: 31.85 edge2_max: 34.85
 edge3_min: 50.0 edge3_max: 53.0
 edge4_min: 72.5 edge4_max: 75.5
