NS7520B-1-I55 Digi International, NS7520B-1-I55 Datasheet - Page 17
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NS7520B-1-I55
Manufacturer Part Number
NS7520B-1-I55
Description
IC ARM MICROPROCESSOR 177BGA
Manufacturer
Digi International
Series
NET+ARM®r
Specifications of NS7520B-1-I55
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
Supplier Unconfirmed
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
NS7520B-1-I55
Manufacturer:
VBYONE
Quantity:
880
Company:
Part Number:
NS7520B-1-I55
Manufacturer:
Digi International
Quantity:
10 000
“No connect” pins
General Purpose I/O
R13
P12
N12
R15
M11
P11
N11
R12
R14
P13
PORTA7
PORTA6
PORTA5
PORTA4
PORTA3
PORTA2
PORTA1
PORTA0
PORTC7
PORTC6
Pin
GPIO signal
Tie to V
Tie to V
XTALB1: Tie to V
XTALB2: NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
NO CONNECT
Description
TXDA
DTRA_
RTSA_
RXCA/RIA_/
OUT1A_
RXDA
DSRA_
CTSA_
TXCA/
OUT2A_/
DCDA_
TXDB
DTRB_
Serial
signal
CC
CC
CC
DREQ1_
DACK1_
AMUX
DONE1_ (O)
DONE1_ (I)
DREQ2_
Other
signal
J14 U
J13 U
J15 U
J12 U
H15 U I/O
H12 U I/O
H13 U I/O
G12 U I/O
G13 U I/O
G14 U I/O
Pin
I/O
I/O
I/O
I/O
I/O
2
2
2
2
2
2
2
2
2
2
OD
w w w . d i g i . c o m
Channel 1 TXD
Channel 1 DTR_
Channel 1 RTS_
Pgm’able Out/
Channel 1
RXCLK/ Channel
1 ring signal/
Channel 1 SPI
clock (CLK)
Channel 1 RXD
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 DTR_
Serial channel
description
“ N o c o n n e c t ” p i n s
DMA channel 3/5
Req
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
Other
description
1 3