MC34825EPR2 Freescale Semiconductor, MC34825EPR2 Datasheet - Page 23

• Manufacturer Part Number: MC34825EPR2
• Description: IC USB MINI UNIV CHARGING 20QFN
• Manufacturer: Freescale Semiconductor
• Type: USB Interface ICr

Specifications of MC34825EPR2

• Controller Type: USB Peripheral Controller
• Interface: Micro-USB
• Voltage - Supply: 2.7 V ~ 5.5 V
• Current - Supply: 100mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-UFQFN Exposed Pad
• Usb Version: 2.0
• No. Of Ports: 1
• Supply Voltage Range: 2.7V To 5.5V
• Operating Temperature Range: -40°C To +85°C
• No. Of Pins: 20
• Msl: MSL 3 - 168 Hours
• Peak Reflow Compatible (260 C): Yes
• Rohs Compliant: Yes
• Leaded Process Compatible: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TEST ACCESSORY
cables and UART cables for test and R/D purpose. It has an
ID resistance to differentiate it from a regular USB cable or
Analog Integrated Circuit Device Data
Freescale Semiconductor
The Test Accessories listed in
Table 8. Switch Status vs. Test Cables
UART test cable type 1
UART test cable type 2
USB test cable type 1
USB test cable type 2
Other accessories
ADC Time
Key Press
Accessory Type
LKP
LKR
Figure 16. Audio Accessory with Remote Control and Microphone
INT
INT
KP
D+
D-
ID
GND
VBUS
20 ms
Table 21
Figure 17. The Remote Control Key Pressing Timing
SEND/END
are special USB
T
KP
HOLD
R
ADC Result
1
T
LKP
01110
01111
10000
10001
others
Audio_R
Audio_L
20 ms
R
/
2
Interrupt Register read
No auto-on Switches No auto-on Switches
UART cable. The test accessory has four ID resistance
values to distinguish the test cable type. The detection result
turns on or off the USB switches, UART switches, and the
power MOSFET automatically, as shown in the
Auto-ON Switches
Interrupt Register read
UART Switches
UART Switches
USB Switches
USB Switches
R
3
MIC
20 ms
…...
R
N-1
Interrupt Register read
Power MOSFET
OPERATION AFTER IDENTIFICATION
ACCESSORY
FUNCTIONAL DEVICE OPERATION
OFF
OFF
ON
ON
AUDIO
R
N
Table
8.
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