NS7520B-1-C36 Digi International, NS7520B-1-C36 Datasheet - Page 51

• Manufacturer Part Number: NS7520B-1-C36
• Description: IC ARM MICROPROCESSOR 177BGA
• Manufacturer: Digi International
• Series: NET+ARM®r

Specifications of NS7520B-1-C36

• 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

SDRAM load mode
SDRAM refresh
CAS0* (A10/AP)
CAS0* (A10/AP)
CAS3* (RAS)
CAS2* (CAS)
CAS1* (WE)
CAS3* (RAS)
CAS2* (CAS)
CAS1* (WE)
CS[4:0]*
CS[4:0]*
BCLK
A[13:0]
BCLK
27
34
34
prechg
27
34
34
prechg
27
34
34
34
34
34
34
inhibit
nop
27
34
34
refresh
34
34
34
35
load
w w w . d i g i . c o m
op code
27
34
27
34
34
35
S D R A M t i m i n g
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