NS7520B-1-I46 Digi International, NS7520B-1-I46 Datasheet - Page 306

• 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

External DMA timing
2 9 4
T i m i n g D i a g r a m s
BCLK max frequency: 55.296 MHz
Operating conditions:
External DMA timing parameters
Temperature:
Voltage:
Output load:
Input drive:
72
75
70
71
73
74
Num
BCLK high to DACK* valid
BCLK high to DONE* (output) valid
DREQ* low to BCLK high (setup)
BCLK high to DREQ* valid (hold)
DONE* (input) valid BCLK high (setup)
BLCK high to DONE* (input) valid (hold)
Description
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
-15.00 (min)
1.60 (min)
25.0pf
CMOS buffer
110.00 (max)
1.40 (max)
5
0
5
0
Min
14
15
Max
ns
ns
ns
ns
ns
ns
Unit