NS7520B-1-C36 Digi International, NS7520B-1-C36 Datasheet - Page 202

• 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

1 9 0
E F E c o n f i g u r a t i o n
Table 70: CLKS field settings
000
001
010
011
100
101
110
111
CLKS field
N S 7 5 2 0 H a r d w a r e R e f e r e n c e , R e v G 9 / 2 0 0 7
SYS_CLK / 4
SYS_CLK / 4
SYS_CLK / 6
SYS_CLK / 8
SYS_CLK / 10
SYS_CLK / 14
SYS_CLK / 20
SYS_CLK / 28
SYS_CLK ratio
2.4 MHz
75 MHz example
2.0 MHz
12 MHz example