xr21v1410 Exar Corporation, xr21v1410 Datasheet - Page 4

• Manufacturer Part Number: xr21v1410
• Description: 1-ch Full-speed Usb Uart
• Manufacturer: Exar Corporation

XR21V1410
1-CH FULL-SPEED USB UART
N
Pin Description
Ancillary Signals
OTE
LOWPOWER
: Pin type: I=Input, O=Output, I/O= Input/output, OD=Output Open Drain.
N
GND
VCC
SCL
AME
16-QFN
P
1, 13
12
16
IN
2
#
T
Pwr
Pwr
YPE
O
I
I
optional external I
tions upon power-up including the USB Vendor ID and Device ID.
If an EEPROM is not used, this pin can be used with the SDA pin to
select the Remote Wake-up and Power modes. An external pull-up or
pull-down resistor is required. See
Low power status output. This pin is HIGH when the XR21V1410 is in
the suspend mode. This pin is LOW when the XR21V1410 is not in the
suspend mode. An external pull-up or pull-down resistor is required on
this pin. This pin is sampled upon power-on to configure the polarity of
the LOWPOWER output during suspend mode. An external pull-up
resistor will cause the LOWPOWER pin to be HIGH during suspend
mode. An external pull-down resistor will cause the LOWPOWER pin to
be LOW during suspend mode.
+3.3V power supply. All inputs are 5V tolerant.
Power supply common, ground.
2
C-controller serial input clock. 1K pull-up resistor is required. An
4
2
C EEPROM can be used to store default configura-
D
ESCRIPTION
Table 1
REV. 1.0.0