NS7520B-1-C36 Digi International, NS7520B-1-C36 Datasheet - Page 57

• 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

fp_refresh_cycles
Fast page refresh (RCYC = 00)
Fast page refresh (RCYC = 01)
RAS[4:0]*
RAS[4:0]*
CAS3*
CAS2*
CAS1*
CAS0*
CAS3*
CAS2*
CAS1*
CAS0*
BCLK
BCLK
WE*
WE*
27
43
43
43
43
12
RF1
27
43
43
43
43
12
RF1
RF2
RF2
43
43
43
43
RF3
43
43
43
43
RF3
F
t P
27
RF4
27
RF4
R f
RF5
h (RCYC
RF5
RF6
01)
RF6
RF7
w w w . d i g i . c o m
RF8
RF8
12
12
T1
T1
F P D R A M t i m i n g
5 3