NS7520B-1-C36 Digi International, NS7520B-1-C36 Datasheet - Page 54

• 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 DRAM burst read
Fast Page burst read
Notes:
1
2
3
4
5 0
F P D R A M t i m i n g
TEA*/LAST (Note-4)
Non-muxed address
Muxed address
If the next transfer is DMA, null periods between memory transfers can occur. Thirteen clock
pulses are required for DMA context switching.
Port size determines which byte enable signals are active:
–
–
–
Port size determines which CAS signals are active:
–
–
–
The TA* and TEA*/LAST signals are for reference only.
PortA2/AMUX
TA* (Note-4)
read D[31:0]
RAS[4:0]*
CAS[3:0]*
BE[3:0]*
8-bit port = BE3*
16-bit port = BE[3:2]
32-bit port = BE[3:0]
8-bit port = CAS3*
16-bit port = CAS[3:2]
32-bit port = CAS[3:0]
BCLK
RW*
OE*
Note-2
Note-3
36
6
35
12
T1
28
27
N S 9 3 6 0 D a t a s h e e t
37
TW
43
30
T2
10
30
43
TW
11
T2
TW
0 3 / 2 0 0 6
T2
TW
31
T2
27
Note-1
31
36
28
37
T1