USB Transceiver -

MIC2550AYML25 TR

Manufacturer Part NumberMIC2550AYML25 TR
DescriptionUSB Transceiver -
ManufacturerMicrel Inc
TypeUSB Transceiver
MIC2550AYML25 TR datasheet
 


Specifications of MIC2550AYML25 TR

Number Of Drivers/receivers1/1ProtocolUSB 2.0
Voltage - Supply4 V ~ 5.25 VMounting TypeSurface Mount
Package / Case14-MLF®, QFNNumber Of Transceivers1
Esd ProtectionYeskVOperating Supply Voltage (typ)Not RequiredV
Operating Temperature ClassificationIndustrialOperating Supply Voltage (max)Not RequiredV
Operating Supply Voltage (min)Not RequiredVPin Count16
MountingSurface MountOperating Temperature (max)85C
Operating Temperature (min)-40CLead Free Status / RoHS StatusLead free / RoHS Compliant
Other namesMIC2550AYML25TR
MIC2550AYML25TR
  
1
Page 1
2
Page 2
3
Page 3
4
Page 4
5
Page 5
6
Page 6
7
Page 7
8
Page 8
9
Page 9
10
Page 10
11
Page 1/11

Download datasheet (123Kb)Embed
Next
MIC2550A
General Description
The MIC2550A is a single-chip transceiver that complies with
the physical layer specifications for Universal Serial Bus
(USB).
The MIC2550A supports full-speed (12Mbps) and low-speed
(1.5Mbps) operation and introduces superior edge rate con-
trol to produce crisper eye diagrams. As a result, the task of
passing USB compliance testing is made easier.
A unique, patented, dual supply voltage operation allows the
MIC2550A to reference the system I/F I/O signals to a supply
voltage down to 2.5V while independently powered by the
USB V
. This allows the system interface to operate at its
BUS
core voltage without addition of buffering logic and also
reduce system operating current.
System Diagram
System
Supply Voltage
0.47µF
System
Interface
GND
MicroLeadFrame and MLF are trademarks of Amkor Technology.
SurgX is a registered trademark of Cooper Electronics Technologies.
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
March 2005
Universal Serial Bus Transceiver
Features
• Compliant to USB Specification Revision 2.0 for
low-speed (1.5Mbps) and full-speed (12Mbps) operation
• Compliant to IEC-61000-4.2 (Level 2)
• Operation down to 2.5V
• Dual supply voltage operation
• Integrated speed-select termination supply
• Very low power consumption meets USB suspend-
current requirements
• Small 14-pin TSSOP and 16-pin MLF™ packages
Applications
• Personal digital assistants (PDA)
• Palmtop computers
• Cellular telephones
Ordering Information
Part Number
Standard
MIC2550ABTS
MIC2550ABML
1.5k
MIC2550A
VIF
VTRM
LOW
SPEED
SPD
VBUS
R
S
OE#
D+
24Ω
RCV
D–
R
S
VP
D–
24Ω
VM
1µF
SUS
GND
1µF min
10µF max
1
Micrel, Inc.
MIC2550A
Pb-Free
Package
MIC2550AYTS
14-Pin TSSOP
MIC2550AYML
16-Pin MLF™
HIGH
SPEED
V
BUS
D+
USB
D–
Interface
Connector
GND
Cooper Electronics Technologies
41206ESDA SurgX
(See “Applications Information”
for additional suppliers.)
M9999-031805

MIC2550AYML25 TR Summary of contents

  • Page 1

    MIC2550A General Description The MIC2550A is a single-chip transceiver that complies with the physical layer specifications for Universal Serial Bus (USB). The MIC2550A supports full-speed (12Mbps) and low-speed (1.5Mbps) operation and introduces superior edge rate con- trol to produce crisper ...

  • Page 2

    MIC2550A Pin Configuration VIF 1 SPD 2 RCV GND 7 14-Pin TSSOP (TM) Pin Description Pin Name Pin Number Pin Number MIC2550ABTS MIC2550ABML VIF 1 SPD 2 RCV ...

  • Page 3

    MIC2550A Absolute Maximum Ratings Supply Voltage (V ) ................................................... +6.5V IF Input Voltage (V ) ........................ –0.5V(min)/5.5V(max) BUS Output Current ( ........................................... ±50mA D+ D– Output Current (all others) ....................................... ±15mA Input Current ............................................................ ±50mA Storage Temperature ...

  • Page 4

    MIC2550A Symbol Parameter Transceiver DC Characteristics I Hi-Z State Data Line Leakage LO V Differential Input Sensitivity DI V Differential Common-Mode Range CM V Single-Ended Receiver Threshold SE Receiver Hysteresis, Note 6 V Static Output Low, Note ...

  • Page 5

    MIC2550A Timing Diagrams V OE D– Differential Data Lines Differential Data Lines Output Figure 3. Receiver Propagation Delay D+/D– to RCV, V Input Differential Data Lines Figure 4. Driver Propagation Delay V March ...

  • Page 6

    MIC2550A ...

  • Page 7

    MIC2550A Block Diagram March 2005 SYSTEM I/F USB VOLTAGE DOMAIN VOLTAGE DOMAIN Regulator VIF TO INTERNAL CIRCUITS SPD OE# RCV VP VM SUS GND 7 Micrel, Inc. VBUS VTRM D– D+ M9999-031805 ...

  • Page 8

    MIC2550A Applications Information The MIC2550A is designed to provide USB connectivity in mobile systems where system supply voltages are not avail- able to satisfy USB requirements. The MIC2550A can oper- ate down to supply voltages of 2.5V and still meet ...

  • Page 9

    MIC2550A PCB Layout Recommendations Although the USB standard and applications are not based in an impedance controlled environment, a properly designed PCB layout is recommended for optimal transceiver perfor- mance. The suggested PCB layout hints are as follows: • Match ...

  • Page 10

    MIC2550A Package Information 0.65 BSC (0.026) 3.00BSC 2.75BSC 0.50 DIA 2.75BSC 3 4 TOP VIEW SECTION "C-C" SCALE: NONE 0.5BSC M9999-031805 4.50 (0.177) 6.4 BSC (0.252) 4.30 (0.169) 0.30 (0.012) 0.19 (0.007) ...

  • Page 11

    ... MIC2550A MICREL INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL This information furnished by Micrel in this data sheet is believed to be accurate and reliable. However no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. ...