NS7520B-1-I46 Digi International, NS7520B-1-I46 Datasheet - Page 277

• 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

Timing_Specifications
Timing Diagrams
All timing specifications consist of the relationship between a reference clock and a
signal:
Note:
Signal
Clock
Bus
There are bussed and non–bussed signals. Non–bussed signals separately
illustrate 0–to–1 and 1–to–0 transitions.
Inputs have setup/hold times versus clock rising.
Outputs have switching time relative to either clock rising or clock falling.
Timing relationships in this diagram are drawn without proportion to actual
delay.
0-to-1 from falling edge
Valid from falling edge
Setup time
Setup time
0-to-1 from rising edge
Hold time
1-to-0 from falling edge
w w w . d i g i e m b e d d e d . c o m
E l e c t r i c a l C h a r a c t e r i s t i c s
1-to-0 from rising edge
Valid from rising edge
Hold
2 6 5