NS7520B-1-I46 Digi International, NS7520B-1-I46 Datasheet - Page 309

• 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

Serial internal/external timing
Operating conditions:
Note:
Serial internal timing characteristics
Serial external timing characteristics
Temperature:
Voltage:
Output load:
Input drive:
76
77
78
79
* The T
80
81
82
83
84
* The T
Num
Num
SYS
SYS
RXD hold to SCLK
SCLK to ENABLE
SCLK to ENABLE high
SCLK to TXD (PORTA7/C7)
RXD (PORTA3/C3) setup to SCLK
parameter represents one period of the internal system clock.
SCLK frequency
SCLK duty cycle
SCLK to TXD (PORTA7/C7)
RXD (PORTA3/C3) setup to SCLK
RXD hold to SCLK
parameter represents one period of the internal system clock.
Description
Description
SPI timing diagrams are in Chapter 10, "Serial Controller Module." See Figure
25, "SPI master mode 0 and 1 two-byte transfer," on page 217 and Figure 26,
"SPI slave mode 0 and 1 two-byte transfer," on page 220. Only SPI modes 0 and
1 are supported.
-15.00 (min)
1.60 (min)
25.0pf
CMOS buffer
110.00 (max)
1.40 (max)
w w w . d i g i e m b e d d e d . c o m
1.5
1
1
1
45
1
2
Min
Min
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 T
10
55
2T
Max
Max
SYS
SYS
*
*
T
ns
ns
ns
MHz
%
T
ns
ns
ns
Unit
Unit
SCLK
SCLK
2 9 7