NS7520B-1-C36 Digi International, NS7520B-1-C36 Datasheet - Page 17

• 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

“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