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RZ/T2M Datasheet(PDF) 60 Page - Renesas Technology Corp |
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RZ/T2M Datasheet(HTML) 60 Page - Renesas Technology Corp |
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60 / 127 page  Table 2.21 Bus timing (2 of 2) Conditions: VOH = VCC33 × 0.5, VOL = VCC33 × 0.5, C = 15 pF (CKIO), 30 pF (others), Tjmin = -40℃ Parameter Symbol CKIO = 1/tCKcyc*1 (Max 66 MHz) Unit Reference Figure Min. Max. Write data delay time 2 tWDD2 — 10.5 ns Figure 2.23 to Figure 2.26, Figure 2.30 to Figure 2.32 Write data hold time 1 tWDH1 1 — ns Figure 2.11 to Figure 2.17 Write data hold time 2 tWDH2 2 — ns Figure 2.23 to Figure 2.26, Figure 2.30 to Figure 2.32 Write data hold time 4 tWDH4 0 — ns Figure 2.11 to Figure 2.15 WAIT# setup time*3 High-drive output tWTS 1/2tCKcyc + 4.5 — ns Figure 2.12 to Figure 2.18 Normal output 1/2tCKcyc + 8 — ns WAIT# hold time tWTH 1/2tCKcyc + 3.5 — ns Figure 2.12 to Figure 2.18 RAS# delay time 1 tRASD1 2 10.5 ns Figure 2.19 to Figure 2.35 CAS# delay time 1 tCASD1 2 10.5 ns Figure 2.19 to Figure 2.35 DQM delay time 1 tDQMD1 2 10.5 ns Figure 2.19 to Figure 2.32 CKE delay time 1 tCKED1 2 10.5 ns Figure 2.34 AH# delay time tAHD 1/2tCKcyc 1/2tCKcyc + 10 ns Figure 2.15 Multiplex address delay time tMAD — 10 ns Figure 2.15 Multiplex address hold time tMAH 1 — ns Figure 2.15 Address setup time to AH# tAVVH 1/2tCKcyc − 2 — ns Figure 2.15 DACK/TEND delay time tDACD See section 2.5.4. DMAC Timing ns Figure 2.11 to Figure 2.32 Note: Notation of 1/2tCKcyc in the delay time, setup time, and hold time shows 1/2 cycles from the clock rising edge, that is, the reference of clock falling. Note 1. Take the number of cycles of waiting that suits the system configuration into consideration with regard to the fmax value for CKIO (the external bus clock). When CKIO is running at 50 MHz or a higher frequency, select high drive output. Note 2. These are values when SDRAM (CSnBCR.TYPE[2:0] = 100b) is selected in the CSn space bus control register (CSnBCR) and high-drive output is selected for CKIO. Note 3. These are values when high-drive output and normal output are respectively selected for CKIO. Table 2.22 Bus timing (1 of 2) Conditions: VOH = VCC33 × 0.5, VOL = VCC33 × 0.5, C = 12 pF (CKIO), 12 pF (others), Tjmin = -20℃ Parameter Symbol CKIO = 1/tCKcyc*1 (Max 100 MHz) Unit Reference Figure Min. Max. Address delay time 1 SDRAM*2 tAD1 1.3 8 ns Figure 2.11 to Figure 2.35 Other than the above 0 8 ns Address delay time 2 tAD2 1/2tCKcyc - 0.5 1/2tCKcyc + 8 ns Figure 2.18 Address setup time tAS 0 — ns Figure 2.11 to Figure 2.14, Figure 2.18 Chip enable setup time tCS 0 — ns Figure 2.11 to Figure 2.14, Figure 2.18 Address hold time tAH 0 — ns Figure 2.11 to Figure 2.14 BS delay time tBSD — 8 ns Figure 2.11 to Figure 2.32 CSn# delay time 1 SDRAM*2 tCSD1 1.3 8 ns Figure 2.11 to Figure 2.35 Other than the above 0 8 ns RZ/T2M Datasheet 2. Electrical Characteristics R01DS0383EJ0100 Rev.1.00 Mar 22, 2022 Page 60 of 127 |
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