NS7520B-1-C36 Digi International, NS7520B-1-C36 Datasheet - Page 34

• 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

2 2
P i n o u t d e t a i l t a b l e s a n d s i g n a l d e s c r i p t i o n s
Table 9: GPIO pinout
PORTA4
PORTA3
PORTA2
PORTA1
PORTA0
PORTC7
PORTC6
PORTC5
PORTC4
PORTC3
PORTC2
GPIO
signal
2
2
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
RXCA/RIA_/
OUT1A_
RXDA
DSRA_
CTSA_
TXCA/
OUT2A_/
DCDA_
TXDB
DTRB_
RTSB_
RXCB/RIB_/
OUT1B_
RXDB
DSRB_
Serial
signal
DACK1_
AMUX
DONE1_
(O)
DONE1_ (I) G12 U
DREQ2_
REJECT_
RESET_
LIRQ3/
DACK2_
LIRQ2/
RSPF_
Other
signal
J12 U
H15 U
H12 U
H13 U
G13 U
G14 U
F15 U
F12 U
F13 U
E15 U
Pin
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
2
2
2
2
2
2
2
2
2
2
2
OD
Pgm’able Out/
Channel 1
RXCLK/Channel
1 ring signal/
Channel 1 SPI
clock (CLK)
Channel 1 DSR_
Channel 1 CTS_
Pgm’able Out/
Channel 1 DCD/
Channel 1 SPI
enable (SEL_)/
Channel 1
TXCLK
Channel 2 TXD
Channel 2 RTS_
Pgm’able Out/
Channel 2
RXCLK/Channel
2 ring signal/
Channel 2 SPI
clock (CLK)
Channel 2 RXD
Channel 2 DSR_
Channel 1 RXD
Channel 2 DTR_
Serial channel
description
DMA channel 3/5
ACK
DRAM addr mux
DMA channel 3/5
DONE_Out
DMA channel 3/5
DONE_In
GEN interrupt out
DMA channel 4/6
Req
CAM reject
RESET output
See Note 1
following this
table.
Level sensitive
IRQ/DMA
channel 4/6 ACK
Level sensitive
IRQ/CAM
request
Other
description