USBN9602-28MX National Semiconductor, USBN9602-28MX Datasheet - Page 35

• Manufacturer Part Number: USBN9602-28MX
• Description: IC CTRLR FULL SPD FUNC 28-SOIC
• Manufacturer: National Semiconductor

Specifications of USBN9602-28MX

• Controller Type: USB Node
• Interface: MICROWIRE/PLUS™. Serial, Parallel
• Voltage - Supply: 3.3V
• Current - Supply: 30mA
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Operating Temperature: -
• Other names: *USBN9602-28MX

12.0 Design considerations
12.1 Targeted Applications
The USBN9602 is designed to be used in Full Speed USB
operations. The target applications are self-powered
devices like modems, printers, storage devices, imaging
devices, etc.
The USBN9602 is not intended for use in low speed appli-
cations. While not normally intended for bus-powered oper-
ation, this is possible in some cases with the addition of
external circuitry. Contact National Semiconductor for the
application notes that describe bus-powered use.
12.3 Simplified Application Diagrams
IN
4148
VCC
10K
10 uF
RESET
XTAL1
8051
Note: pull all unused input and I/O pins up or down, as appropriate.
10 uF
A8 - A15
INTO
AD7
AD0
ALE
RST
CKI
SL SO SK
WR
RD
VCC
COP888EG
8
8
Figure 20. MICROWIRE Serial Interface
Figure 21. Multiplex Parallel Interface
G0/INT
DECODER
56 pF
22 pF
IN
4148
VCC
35
VCC
12.2 3.3V Regulator Issues
To comply with the Agreed USB Device Working Group
Review Requests - 110 dated July 7, 1997, a 7.5 k
resistor can be tied from D+ to Vcc, or use a 1.13 k
resistor tied to 3.3V.
D+
470nH
INTR
ALE
WR
RD
CS
MODE1
MODE0
AD7
AD0
10K
10 uF
48 MHz
3rd
harmonic
USBN9602
CLKOUT
RST
Vcc = 5V
VCC
100 nF
XOUT
RST
INTR
XOUT
MODE1
MODE0
XIN
7.5 k
XIN
D+
D-
100 nF
harmonic
USBN9602
3.3V
SK SI SO
48 MHz
± 1%
1.5K
CLKOUT
24
24
3rd
AGND
470nH
D+
D-
CONNECTOR
OR
D+
USB
3.3V
D+
D-
1.5K
24
24
AGND
22 pF
56 pF
Vcc = 3.3V
CONNECTOR
www.national.com
1.13 k
USB
D+
D-
±1%
1%
1%