ST STM32F7308-DK User Manual page 43

Impedance Constraint [Min = 40.00 Max = 60.00 ]
Matched Net Lengths [Tolerance = 200mil]
PSRAM Data, NWE & NOE PSRAM_D
shared with LCD
i
LCD_PSRAM_D[0..15]
LCD_PSRAM_D[0..15]
PSRAM_A[0..17]
PSRAM_A[0..17]
i
PSRAM_A
Matched Net Lengths [Tolerance = 200mil]
Impedance Constraint [Min = 40.00 Max = 60.00 ]
PSRAM_A
PSRAM_NE1
PSRAM_NE1
LCD_PSRAM_NWE
LCD_PSRAM_NWE
LCD_PSRAM_NOE
LCD_PSRAM_NOE
PSRAM_NBL0
PSRAM_NBL0
PSRAM_NBL1 PSRAM_A
PSRAM_NBL1
Figure 27. PSRAM
U10
H6
NC
G2
NC I/O15
H1
A18 I/O14
PSRAM_A17 D3
A17 I/O13
PSRAM_A16 E4
A16 I/O12
PSRAM_A15 F4
A15 I/O11
PSRAM_A14 F3
A14 I/O10
PSRAM_A13 G4
A13
PSRAM_A12 G3
A12
PSRAM_A11 H5
A11
PSRAM_A10 H4
A10
PSRAM_A9 H3
A9
PSRAM_A8 H2
A8
PSRAM_A7 D4
A7
PSRAM_A6 C4
A6
3V3 PSRAM_A5 C3
A5
PSRAM_A4 B4
A4
PSRAM_A3 B3
A3
R100 PSRAM_A2 A5
A2
R63 PSRAM_A1 A4
A1
10K PSRAM_A0 A3
A0
10K
i
VDD
R65 0 B5
CS1 VDD
A6
CS2
R64 0 G5
WE
A2
OE GND
i
A1
LB GND
i
B2
UB
i
PSRAM_A
PSRAM_A i
IS66WV51216EBLL-55BLI
PSRAM_A
PSRAM
G1 LCD_PSRAM_D15
F1 LCD_PSRAM_D14
F2 LCD_PSRAM_D13
E2 LCD_PSRAM_D12
D2 LCD_PSRAM_D11
C2 LCD_PSRAM_D10
C1 LCD_PSRAM_D9
I/O9
B1 LCD_PSRAM_D8
I/O8
G6 LCD_PSRAM_D7
I/O7
F6 LCD_PSRAM_D6
I/O6
F5 LCD_PSRAM_D5
I/O5
E5 LCD_PSRAM_D4
I/O4
D5 LCD_PSRAM_D3
I/O3
C6 LCD_PSRAM_D2
I/O2
C5 LCD_PSRAM_D1
I/O1
B6 LCD_PSRAM_D0
I/O0
E3
NC
D6
3V3
E1
3V3
D1
E6
C71
C63
100nF 100nF
Place close to PSRAM
Title: PSRAM
Project: STM32F723E/F7308 DISCOVERY
Size: A4 Reference: MB1260
Date: 11/09/2018
Revision: D02
Sheet: 5 of 12