NS7520B-1-I46 Digi International, NS7520B-1-I46 Datasheet - Page 126

• Manufacturer Part Number: NS7520B-1-I46
• Description: IC ARM MICROPROCESSOR 177BGA
• Manufacturer: Digi International
• Series: NET+ARM®r

Specifications of NS7520B-1-I46

• Applications: Network Processor
• Core Processor: ARM7
• Program Memory Type: External Program Memory
• Controller Series: -
• Ram Size: External
• Interface: EBI/EMI, Ethernet, DMA, SPI, UART
• Number Of I /o: 16
• Voltage - Supply: 1.4 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 177-LFBGA
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

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S D R A M
Table 43: x16 SDRAM interconnect
CS/RAS_
CAS3_
CAS2_
CAS1_
CAS0_
BE3_
BE2_
BE1_
BE0_
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A20
A21
NS7520 signal
N S 7 5 2 0 H a r d w a r e R e f e r e n c e , R e v G 9 / 2 0 0 7
CS[4:0]_
RAS_
CAS_
WE_
A10/AP
UDQM_
LDQM_
N/A
N/A
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
BA
16M SDRAM signal
CS[4:0]_
RAS_
CAS_
WE_
A10/AP
UDQM_
LDQM_
N/A
N/A
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A11
BA0
64M SDRAM signal