MCS7784 MosChip, MCS7784 Datasheet - Page 4

• Manufacturer Part Number: MCS7784
• Description: Usb To Irda Port
• Manufacturer: MosChip

Page 4
MCS7784
USB to IrDA Port
Pin Assignments
EECLK
EESDA
RESET
XTAL1
XTAL2
AGND
Name
VOUT
TRST
TCLK
3.3VA
GND
3.3V
TST
DM
RX
DP
TX
5V
7, 18, 21
Pin
12
13
14
15
16
17
19
20
25
26
27
28
24
1
4
5
8
Type
PWR
PWR
PWR
PWR
PWR
PWR
I/O
I/O
I/O
I/O
O
O
O
O
I
I
I
I
Serial Data Output.
Power-On Reset Output.
The internal Power-On Reset signal is routed to this pin.
Serial Data Input.
Test Clock
Output in test mode.
2-Wire EEPROM Clock.
2-Wire EEPROM Data IN/OUT. Tri State.
Upstream USB port differential Data Plus (D+), analog.
Upstream USB port differential Data Minus (D-), analog.
+3.3V Voltage Regulator Output.
System Reset.
Resets all internal registers, sequencers, and signals to a consistent state.
Active high.
Main Power Input.
Connect to USB VBUS or local VDD.
PLL Analog Ground.
Internal Test Mode (internal pull-up).
When this pin is tied to 3.3V, the internal test mode is enabled.
Low for normal operation.
Crystal oscillator or external clock input
Crystal oscillator output. See XTAL1 description.
Power and signal ground.
Analog 3.3V Power Supply
Device Supply Input
Connect to VOUT pin when 5V supply is used.
Description
Rev.
2.1