NS7520B-1-C36 Digi International, NS7520B-1-C36 Datasheet - Page 23
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NS7520B-1-C36
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
NS7520B-1-C36
Manufacturer:
Digi International
Quantity:
10 000
Part Number:
NS7520B-1-C36
Manufacturer:
NETARM
Quantity:
20 000
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Pinout detail tables and signal descriptions
Each pinout table applies to a specific interface and contains the following
information:
Notes:
Signal
Pin
_
I/O
OD
Column
NO CONNECT
The 177th pin (package ball) is for alignment of the package on the PCB.
The pin name for each I/O signal. Some signals have multiple function modes and are identified
accordingly. The mode is configured through firmware using one or more configuration
registers.
The pin number assignment for a specific I/O signal.
See Figure 28, "Internal pullup characteristics," on page 260 and Figure 29, "Internal pulldown
characteristics," on page 260 for an illustration of the characteristics of these pins. Use the
figures to select the appropriate value of the complimentary resistor to drive the signal to the
opposite logic state. For those pins with no pullup or pulldown resistor, you must select the
appropriate value per your design requirements.
An underscore (bar) indicates that the pin is active low.
The type of signal — input, output, or input/output.
The output drive strength of an output buffer. The NS7520 uses one of three drivers:
Description
U next to the pin number indicates that the pin is a pullup resistor (input current source).
D next to the pin number indicates that the pin is a pulldown resistor (input current sink).
No value next to the pin indicates that the pin has neither a pullup nor pulldown resistor.
2 mA
4 mA
8 mA
as a description for a pin means do not connect to this pin.
w w w . d i g i e m b e d d e d . c o m
P i n o u t a n d P a c k a g i n g
1 1
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