NS7520B-1-I46 Digi International, NS7520B-1-I46 Datasheet - Page 119
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NS7520B-1-I46
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
NS7520B-1-I46
Manufacturer:
Digi International
Quantity:
10 000
Part Number:
NS7520B-1-I46
Manufacturer:
NETARM
Quantity:
20 000
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Table 40: Internal DRAM multiplexing — Mode 0
Table 41: Internal DRAM multiplexing — Mode 1
NS7520 pin
DRAM pin
RAS
CAS
NS7520 pin
DRAM pin
RAS
CAS
NS7520 pin
DRAM pin
RAS
CAS
NS7520
pin
DRAM
pin
RAS
CAS
A23
8-bit DRAM peripheral (22 address bits: 14 RAS and 8 CAS)
NS7520 multiplexed address outputs
A13
8-bit DRAM peripheral (20 address bits: 10 RAS and 10 CAS)
A13
16-bit DRAM peripheral (20 address bits: 10 RAS and 10 CAS)
A13
A9
20
21
32-bit DRAM peripheral (20 address bits: 10 RAS and 10 CAS)
NS7520 multiplexed address outputs
A22
A12
A12
A9
19
20
A12
A13
A13
21
0
A11
A9
18
19
A11
A11
A12
A12
20
0
A10
A10
A10
A8
19
10
A11
A11
19
0
A9
A9
A8
18
9
A9
A7
18
9
A10
A10
18
10
A8
A8
17
8
A8
A7
17
8
A8
A6
17
8
A9
A9
17
20
A7
A7
16
7
A7
A6
16
7
A7
A5
16
7
A8
A8
16
19
A6
A6
15
6
A6
A5
15
6
A6
A4
15
6
A7
A7
15
7
w w w . d i g i e m b e d d e d . c o m
A5
A5
14
5
A5
A4
14
5
A5
A3
14
5
A6
A6
14
6
A5
A5
13
5
M e m o r y C o n t r o l l e r M o d u l e
A4
A4
13
4
A4
A3
13
4
A4
A2
13
4
A4
A4
12
4
A3
A3
11
3
A3
A2
12
3
A3
A1
12
3
A3
A3
11
3
A2
A2
12
2
A2
A1
11
2
A2
A0
11
2
A2
A2
10
2
A1
A1
10
1
A1
A0
10
1
A1
A1
A1
9
1
A0
A0
9
0
A0
A0
A0
A0
8
0
1 0 7
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