sc16c850iet NXP Semiconductors, sc16c850iet Datasheet - Page 8

• Manufacturer Part Number: sc16c850iet
• Description: Sc16c850 2.5 V To 3.3 V Uart, 5 Mbit/s Max. With 128-byte Fifos, Infrared Irda , And 16 Mode Or 68 Mode Parallel Bus Interface
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 2.
[1]
SC16C850_1
Product data sheet
Symbol
RTS
RX
TX
V
V
XTAL1
XTAL2
DD
SS
HVQFN package die supply ground is connected to both V
for proper device operation. For enhanced thermal, electrical, and board level performance, the exposed pad needs to be soldered to
the board using a corresponding thermal pad on the board and for proper heat conduction through the board, thermal vias need to be
incorporated in the PCB in the thermal pad region.
Pin description
Pin
TFBGA36 HVQFN32
D2
C6
C5
A1, D4
C2, C4
A6
A5
21
6
7
28
13
10
11
[1]
…continued
Type
O
I
O
I
I
I
O
2.5 V to 3.3 V UART with 128-byte FIFOs and IrDA encoder/decoder
Description
Request to Send (active LOW). A logic 0 on the RTS pin indicates the
transmitter has data ready and waiting to send. Writing a logic 1 in the modem
control register MCR[1] will set this pin to a logic 0, indicating data is available.
After a reset this pin will be set to a logic 1.
UART receive data. The RX signal will be a logic 1 during reset, idle (no
data), or when not receiving data. During the local loopback mode, the RX
input pin is disabled and TX data is connected to the UART RX input,
internally.
UART transmit data. The TX signal will be a logic 1 during reset, idle (no
data), or when the transmitter is disabled. During the local loopback mode, the
TX output pin is disabled and TX data is internally connected to the UART RX
input.
Power supply input.
Signal and power ground.
Crystal or external clock input. Functions as a crystal input or as an
external clock input. A crystal can be connected between this pin and XTAL2
to form an internal oscillator circuit. Alternatively, an external clock can be
connected to this pin to provide custom data rates (see
“Programmable baud rate
Output of the crystal oscillator or buffered clock. (See also XTAL1.)
Crystal oscillator output or buffered clock output. Should be left open if an
external clock is connected to XTAL1.
Rev. 01 — 10 January 2008
SS
pin and exposed center pad. V
generator”). See
SS
pin must be connected to supply ground
Figure
8.
SC16C850
Section 6.9
© NXP B.V. 2008. All rights reserved.
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