NS7520B-1-C36 Digi International, NS7520B-1-C36 Datasheet - Page 5

• 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

Figure 1 shows the NS7520 modules. Dashed lines indicate shared pins.
Figure 1: NS7520 module overview
NS7520 Overview
Power
3.3V
1.5V
PLL
System
Clock
BBUS
Serial transceivers and other
devices
Serial-A
UART
SPI
M
D
A
16 GPIO
Serial-B
UART
SPI
D
M
A
JTAG Debug
ARM7TDMI
Debugger
Interface
4
level
interrupt
inputs
FIRQ
IRQ
2 timers
Ethernet
controller
802.3
compliant
M
D
A
MII
NS7520
Boot
config
w w w . d i g i . c o m
Address bus
Watchdog
timer
External
memory
controller
M
D
A
Memory
devices
Flash
SRAM
FP DRAM
SDRAM
Reset
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