W90N745CD Datasheet, PDF (75/422 Pages) Winbond – 16/32-bit ARM microcontroller

Continued.
BITS
[5:3]
[2:0]
W90N745CD/W90N745CDG
tRP
tRAS
DESCRIPTION
SDRAM bank 0/1, Row pre-charge time
tRP [5:3]
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
SDRAM bank 0/1, Row active time
tRAS [2:0]
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
MCLK
1
2
3
4
5
6
7
8
MCLK
1
2
3
4
5
6
7
8
- 70 -