OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

MIC2550AYTS

P1-P3P4-P6P7-P9P10-P11
March 2005 1 M9999-031805
MIC2550A Micrel, Inc.
Ordering Information
Part Number
Standard Pb-Free Package
MIC2550ABTS MIC2550AYTS 14-Pin TSSOP
MIC2550ABML MIC2550AYML 16-Pin MLF™
MIC2550A
Universal Serial Bus Transceiver
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
BUS
. This allows the system interface to operate at its
core voltage without addition of buffering logic and also
reduce system operating current.
System Diagram
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
System
Supply Voltage
System
Interface
VIF
SPD
OE#
RCV
VP D–
VM
D–
D+
VBUS
VTRM
GND
D–
D+
V
BUS
USB
Interface
Connector
Cooper Electronics Technologies
41206ESDA SurgX
GND
R
S
24Ω
R
S
24Ω
1.5k
GND
HIGH
SPEED
LOW
SPEED
MIC2550A
SUS
1µF
1µF min
10µF max
0.47µF
(See “Applications Information”
for additional suppliers.)
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
MicroLeadFrame and MLF are trademarks of Amkor Technology.
SurgX is a registered trademark of Cooper Electronics Technologies.
MIC2550A Micrel, Inc.
M9999-031805 2 March 2005
Pin Description
Pin Name Pin Number Pin Number Pin Function
MIC2550ABTS MIC2550ABML
VIF 1 15 System Interface Supply Voltage (Input): Determines logic voltage levels for
system interface signaling to logic controller.
SPD 2 1 Speed (Input): Edge rate control. Logic high selects full-speed edge rates.
Logic low selects low-speed edge rates.
RCV 3 2 Receive Data (Output): System interface receive data interface to logic
controller.
VP 4 3 Plus (Input/Output): System interface signal to logic controller. If OE# is
logic 1, VP is a receiver output (+); If OE# is logic 0, VP is a driver input (+).
VM 5 4 Minus (Input/Output): System interface signal to logic controller. If OE# is
logic 1, VM is a receiver output (–); If OE# is logic 0, VM is a driver input (–).
NC 6, 13 5, 8, 13 16 Not internally connected
GND 7 6 Ground: Power supply return and signal reference.
SUS 8 7 Suspend (Input): Logic high turns off internal circuits to reduce supply
current.
OE# 9 9 Output Enable (Input): Active low system interface input signal from logic
controller. Logic low causes transceiver to transmit data onto the bus. Logic
high causes the transceiver to receive data from the bus.
D– 10 10 USB Differential Data Line – (Input/Output)
D+ 11 11 USB Differential Data Line + (Input/Output)
VTRM 12 12 Termination Supply (Output): 3.3V speed termination resistor supply output.
VBUS 14 14 USB Supply Voltage (Input): Transceiver supply.
Pin Configuration
1VIF
SPD
RCV
VP
VM
NC
GND
14 VBUS
NC
VTRM
D+
D–
OE#
SUS
13
12
11
10
9
8
2
3
4
5
6
7
14-Pin TSSOP (TM)
1
2
3
4
12
11
10
9
16 15 14 13
5678
SPD
RCV
VP
VM
VTRM
D+
D–
OE#
NC
VBUS
VIF
NC
NC
SUS
GND
NC
16-Pin MLF™ (ML)
March 2005 3 M9999-031805
MIC2550A Micrel, Inc.
Absolute Maximum Ratings (Note 1)
Supply Voltage (V
IF
) ................................................... +6.5V
Input Voltage (V
BUS
) ........................ –0.5V(min)/5.5V(max)
Output Current (I
D+
, I
D–
)...........................................±50mA
Output Current (all others) .......................................±15mA
Input Current ............................................................ ±50mA
Storage Temperature (T
S
) ......................... –65° to +150°C
ESD, Note 3
V
BUS
, D+, D– ......................................................... ±10kV
All other pins ........................................................... ±2kV
Operating Ratings (Note 2)
Supply Voltage (V
BUS
) ................................. 4.0V to 5.25V
Temperature Range (T
A
) ........................... –40°C to +85°C
Junction Temperature (T
J
) ........................................ 160°C
Package Thermal Resistance
TSSOP (θ
JA
) ..................................................... 100°C/W
Electrical Characteristics (Note 8)
T
A
= 25°C, bold values indicate –40°C ≤ T
A
≤ +85°C; typical values at V
BUS
= 5.0V, V
IF
= 3.0V; minimum and maximum values at
V
BUS
= 4.0V to 5.25V, V
IF
= 2.5V to 3.6V; unless noted.
Symbol Parameter Condition Min Typ Max Units
System and USB Interface DC Characteristics
V
BUS
USB Supply Voltage 4.0 5.25 V
V
IF
System I/F Supply Voltage 2.5 5.25 V
V
IL
Low-Level Input Voltage, Note 4 0.15V
IF
V
V
IH
High-Level Input Voltage, Note 4 0.85V
IF
V
V
OH
High-Level Output Voltage, Note 4 I
OH
= 20µA 0.9V
IF
V
V
OL
Low-Level Output Voltage, Note 4 I
OL
= 20µA 0.1 V
I
IL
Input Leakage Current, Note 4 ±5 µA
Symbol Parameter Conditions Min Typ Max Units
SPD SUS OE# Voltage Load
101 1 5 µA
100 1 5 µA
001 1 5 µA
I
IF
VIF Supply Current 0 0 0 VBUS = 5.25V 1 5 µA
010 VIF = 3.6V 1 5 µA
100f = 6MHz CLOAD 325 650 µA
= 50 pF, Note 7
f = 750kHz
000 CLOAD = 600 pF 40 75 µA
Note 7
101 800 1100 µA
100 3000 5000 µA
001 230 350 µA
000 400 700 µA
I
VBUS
VBUS Supply Current 0 1 0 VBUS = 5.25V 130 200 µA
100 VIF = 3.6V f = 6MHz CLOAD 7.3 10 mA
= 50 pF, Note 7
f = 750kHz
000 CLOAD = 600 pF 3.6 5 mA
Note 7
V
TRM
Termination Voltage I
TRM
= 2.5mA 3.0 3.6 V
ESD Protection
IEC-1000-4-2 Air Discharge 10 pulses ±6kV
(D+, D–, Contact Discharge 10 pulses ±6kV
V
BUS
only)
P1-P3P4-P6P7-P9P10-P11

MIC2550AYTS

Mfr. #:
Buy MIC2550AYTS
Manufacturer:
Microchip Technology / Micrel
Description:
USB Interface IC USB Transceiver
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet