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SC16IS750IBS Datasheet(HTML) 7 Page - NXP Semiconductors

Part No. SC16IS750IBS
Description  Single UART with I2C-bus/SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support
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Maker  NXP [NXP Semiconductors]
Homepage  http://www.nxp.com
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SC16IS750IBS Datasheet(HTML) 7 Page - NXP Semiconductors

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SC16IS740_750_760_6
© NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 06 — 13 May 2008
7 of 62
NXP Semiconductors
SC16IS740/750/760
Single UART with I2C-bus/SPI interface, 64-byte FIFOs, IrDA SIR
6.2 Pin description
a. I2C-bus interface
b. SPI interface
Fig 7.
Pin configuration for HVQFN24
A0
I2C
VDD
XTAL1
RESET
XTAL2
002aab015
GPIO5/DTR
GPIO4/DSR
GPIO3
GPIO2
GPIO1
VSS
SC16IS750IBS
SC16IS760IBS
Transparent top view
terminal 1
index area
6
13
5
14
4
15
3
16
2
17
1
18
CS
SPI
VDD
XTAL1
RESET
XTAL2
002aab401
GPIO5/DTR
GPIO4/DSR
GPIO3
GPIO2
GPIO1
VSS
SC16IS750IBS
SC16IS760IBS
Transparent top view
terminal 1
index area
6
13
5
14
4
15
3
16
2
17
1
18
Table 2.
Pin description
Symbol
Pin
Type Description
TSSOP16
TSSOP24
HVQFN24
CTS
11
1
22
I
UART clear to send (active LOW). A logic 0 (LOW) on the CTS
pin indicates the modem or data set is ready to accept transmit
data from the SC16IS740/750/760. Status can be tested by
reading MSR[4]. This pin only affects the transmit and receive
operations when auto CTS function is enabled via the Enhanced
Feature Register EFR[7] for hardware flow control operation.
TX
12
2
23
O
UART transmitter output. During the local Loopback mode, the
TX output pin is disabled and TX data is internally connected to
the UART RX input.
RX
13
3
24
I
UART receiver input. During the local Loopback mode, the RX
input pin is disabled and TX data is connected to the UART RX
input internally.
RESET
14
4
1
I
device hardware reset (active LOW)[1]
XTAL1
15
5
2
I
Crystal input or external clock input. Functions as a crystal input
or as an external clock input. A crystal can be connected
between XTAL1 and XTAL2 to form an internal oscillator circuit
(see Figure 15). Alternatively, an external clock can be
connected to this pin.
XTAL2
16
6
3
O
Crystal output or clock output. (See also XTAL1.) XTAL2 is used
as a crystal oscillator output.
VDD
1
7
4
-
power supply
I2C/SPI
8
8
5
I
I2C-bus or SPI interface select. I2C-bus interface is selected if
this pin is at logic HIGH. SPI interface is selected if this pin is at
logic LOW.


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