Figure 3-27. DDR3L Memory Schematic
DDR_D0
GND
VDDIODDR
DDR_D1
DDR_D2
DDR_D3
DDR_D4
DDR_D5
DDR_D6
DDR_D7
DDR_D8
DDR_D9
DDR_D10
DDR_D11
DDR_D12
DDR_D13
DDR_D14
DDR_D15
ZQ_DDR
DDR_VREF
DDR_A0
DDR_A1
DDR_A2
DDR_A3
DDR_A4
DDR_A5
DDR_A6
DDR_A7
DDR_A8
DDR_A9
DDR_A10
DDR_A11
DDR_A12
DDR_A13
DDR_A14
DDR_A15
DDR_BA0
DDR_BA1
DDR_BA2
DDR_ODT
DDR_CK_P
DDR_CK_N
240R
0201
1%
R107
GND
DDR_CKE
DDR_WE
DDR_CS
DDR_RAS
DDR_CAS
DDR_RESET
DDR_DQS0_P
DDR_DQS0_N
DDR_DQM0
DDR_DQM1
0.1uF
16V
0201
C123
DDR_DQS1_P
DDR_DQS1_N
0.1uF
16V
0201
C124
GND
GND
0.1uF 16V 0201
C83
0.1uF 16V 0201
C84
0.1uF 16V 0201
C85
0.1uF 16V 0201
C86
0.1uF 16V 0201
C87
0.1uF 16V 0201
C88
0.1uF 16V 0201
C89
0.1uF 16V 0201
C90
0.1uF 16V 0201
C91
4.7uF 10V 0402
C92
0.1uF 16V 0201
C93
0.1uF 16V 0201
C94
0.1uF 16V 0201
C95
0.1uF 16V 0201
C96
0.1uF 16V 0201
C97
0.1uF 16V 0201
C98
0.1uF 16V 0201
C99
0.1uF 16V 0201
C100
0.1uF 16V 0201
C101
4.7uF 10V 0402
C102
DIFF100
DIFF100
DIFF100
DIFF100
DIFF100
DIFF100
TP19
TP20
TP21
TP22
TP23
TP24
TP17
TP18
4Gb DDR3L-1600 16bit
(1V35)
VDDQ A1
VDDQ A8
VSS A9
VSSQ B1
VDD B2
VSS B3
UDQS_N
B7
VSSQ B9
VDDQ C1
UDQS_P
C7
VDDQ C9
VSSQ D1
VDDQ D2
UDM
D3
VSSQ D8
VDD D9
VSS E1
VSSQ E2
LDM
E7
VSSQ E8
VDDQ E9
VDDQ F1
LDQS_P
F3
VSSQ F9
VSSQ G1
LDQS_N
G3
VDD G7
VSS G8
VSSQ G9
VREFDQ
H1
VDDQ H2
VDDQ H9
NC
J1
VSS J2
RAS#
J3
CK_P
J7
VSS J8
NC
J9
ODT
K1
VDD K2
CAS#
K3
CK_N
K7
VDD K8
CKE
K9
NC
L1 CS#
L2 WE#
L3
ZQ
L8
NC
L9
VSS M1
BA0
M2
BA2
M3
VREFCA
M8
VSS M9
VDD N1
BA1
N8
VDD N9
VSS P1
VSS P9
VDD R1
VDD R9
VSS T1
RESET#
T2
VSS T9
DQ13 A2
DQ15 A3
DQ12 A7
DQ14 B8
DQ11 C2
DQ9 C3
DQ10 C8
DQ8 D7
DQ0 E3
DQ2 F2
DQ1 F7
DQ3 F8
DQ6 G2
DQ4 H3
DQ7 H7
DQ5 H8
A10/AP
L7
NC/A15
M7
A3
N2
A0
N3
A12/BC#
N7
A5
P2
A2
P3 A1
P7
A4
P8
A7
R2
A9
R3
A11
R7
A6
R8
A13
T3
A14
T7
A8
T8
AS4C256M16D3LC-12BCNTR
U6
RZQ: calibration capability for on-die
terminations and driver output impedances
3.3.2
e.MMC Memory
The SAMA7G54-EK supports e.MMC NAND Flash memory through its Secure Digital Multimedia Controller
(SDMMC), and the board implements an S40FC004C1B1C00000, 32-Gb e.MMC NAND Flash to provide a 4-Gbyte
memory space.
SAMA7G54-EK
Function Blocks
©
2022 Microchip Technology Inc.
and its subsidiaries
User Guide
DS50003273A-page 36