SCN2681TC1A44 NXP Semiconductors, SCN2681TC1A44 Datasheet - Page 5

• Manufacturer Part Number: SCN2681TC1A44
• Manufacturer: NXP Semiconductors

Specifications of SCN2681TC1A44

• Transmitter And Receiver Fifo Counter: No
• Operating Supply Voltage (typ): 5V
• Package Type: PLCC
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Mounting: Surface Mount
• Pin Count: 44
• Operating Temperature (min): 0C
• Operating Temperature (max): 70C
• Operating Temperature Classification: Commercial
• Number Of Channels: 2
• Lead Free Status / RoHS Status: Not Compliant

Philips Semiconductors
2004 Mar 22
MNEMONIC
Dual asynchronous receiver/transmitter (DUART)
RxDA
RxDB
TxDA
TxDB
GND
OP0
OP1
OP2
OP3
OP4
OP5
OP6
OP7
V
IP0
IP1
IP2
IP3
IP4
IP5
IP6
CC
TYPE
O
O
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
Channel A Receiver Serial Data Input: The least significant bit is received first. ‘Mark’ is HIGH, ‘space’ is LOW.
Channel B Receiver Serial Data Input: The least significant bit is received first. ‘Mark’ is HIGH, ‘space’ is LOW.
Channel A Transmitter Serial Data Output: The least significant bit is transmitted first. This output is held in the ‘mark’
condition when the transmitter is disabled, idle, or when operating in local loopback mode. ‘Mark’ is HIGH, ‘space’ is
LOW.
Channel B Transmitter Serial Data Output: The least significant bit is transmitted first. This output is held in the
‘mark’ condition when the transmitter is disabled, idle, or when operating in local loopback mode. ‘Mark’ is HIGH,
‘space’ is LOW.
Output 0: General purpose output, or channel A request to send (RTSAN, active-LOW). Can be deactivated
automatically on receive or transmit.
Output 1: General purpose output, or channel B request to send (RTSBN, active-LOW). Can be deactivated
automatically on receive or transmit.
Output 2: General purpose output, or channel A transmitter 1X or 16X clock output, or channel A receiver 1X clock output.
Output 3: General purpose output, or open-drain, active-LOW counter/timer output, or channel B transmitter 1X clock
output, or channel B receiver 1X clock output.
Output 4: General purpose output, or channel A open-drain, active-LOW, RxRDYA/FFULLA output.
Output 5: General purpose output, or channel B open-drain, active-LOW, RxRDYB/FFULLB output.
Output 6: General purpose output, or channel A open-drain, active-LOW, TxRDYA output.
Output 7: General purpose output, or channel B open-drain, active-LOW TxRDYB output.
Input 0: General purpose input, or channel A clear to send active-LOW input (CTSAN). Pin has an internal V
pull-up device supplying 1 to 4 A of current.
Input 1: General purpose input, or channel B clear to send active-LOW input (CTSBN). Pin has an internal V
pull-up device supplying 1 to 4 A of current.
Input 2: General purpose input, or counter/timer external clock input. Pin has an internal V
1 to 4 A of current.
Input 3: General purpose input, or channel A transmitter external clock input (TxCA). When the external clock is used
by the transmitter, the transmitted data is clocked on the falling edge of the clock. Pin has an internal V
device supplying 1 to 4 A of current.
Input 4: General purpose input, or channel A receiver external clock input (RxCA). When the external clock is used by
the receiver, the received data is sampled on the rising edge of the clock. Pin has an internal V
supplying 1 to 4 A of current.
Input 5: General purpose input, or channel B transmitter external clock input (TxCB). When the external clock is used
by the transmitter, the transmitted data is clocked on the falling edge of the clock. Pin has an internal V
device supplying 1 to 4 A of current.
Input 6: General purpose input, or channel B receiver external clock input (RxCB). When the external clock is used by
the receiver, the received data is sampled on the rising edge of the clock. Pin has an internal V
supplying 1 to 4 A of current.
Power Supply: +5V supply input.
Ground
5
NAME AND FUNCTION
CC
pull-up device supplying
CC
CC
SCN2681T
pull-up device
pull-up device
CC
CC
pull-up
pull-up
Product data
CC
CC