SC16IS752IBS,151 NXP Semiconductors, SC16IS752IBS,151 Datasheet - Page 10

• Manufacturer Part Number: SC16IS752IBS,151
• Description: IC UART DUAL I2C/SPI 32-HVQFN
• Manufacturer: NXP Semiconductors
• Type: IrDA or RS- 232 or RS- 485r

Specifications of SC16IS752IBS,151

• Number Of Channels: 2, DUART
• Package / Case: 32-VFQFN Exposed Pad
• Features: Low Current
• Fifo's: 64 Byte
• Protocol: RS232, RS485
• Voltage - Supply: 2.5V, 3.3V
• With Auto Flow Control: Yes
• With Irda Encoder/decoder: Yes
• With False Start Bit Detection: Yes
• With Modem Control: Yes
• Mounting Type: Surface Mount
• Data Rate: 5 Mbps
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.3 V
• Supply Current: 6 mA
• Maximum Operating Temperature: + 95 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 2.5 V or 3.3 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 568-4000 - DEMO BOARD SPI/I2C TO DUAL UART568-3510 - DEMO BOARD SPI/I2C TO UART
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-2236; 935279288151; SC16IS752IBS-S

NXP Semiconductors
SC16IS752_SC16IS762_7
Product data sheet
Fig 6.
(1) When CTS is LOW, the transmitter keeps sending serial data out.
(2) When CTS goes HIGH before the middle of the last stop bit of the current character, the transmitter finishes sending the current
(3) When CTS goes from HIGH to LOW, the transmitter begins sending data again.
character, but it does not send the next character.
CTS functional timing
7.2.2 Auto-CTS
CTS
TX
7.3 Software flow control
Figure 6
sending the next data character. When CTS is active, the transmitter sends the next
character. To stop the transmitter from sending the following character, CTS must be
deasserted before the middle of the last stop bit that is currently being sent. The
Auto-CTS function reduces interrupts to the host system. When flow control is enabled,
CTS level changes do not trigger host interrupts because the device automatically
controls its own transmitter. Without Auto-CTS, the transmitter sends any data present in
the transmit FIFO and a receiver overrun error may result.
Software flow control is enabled through the Enhanced Features Register and the Modem
Control Register. Different combinations of software flow control can be enabled by setting
different combinations of EFR[3:0].
Table 3.
EFR[3]
0
1
0
1
X
X
X
1
0
1
0
shows CTS functional timing. The transmitter circuitry checks CTS before
start
EFR[2]
0
0
1
1
X
X
X
0
1
1
0
Software flow control options (EFR[3:0])
bit 0 to bit 7
EFR[1]
X
X
X
X
0
1
0
1
1
1
1
Dual UART with I
Rev. 07 — 19 May 2008
stop
EFR[0]
X
X
X
X
0
0
1
1
1
1
1
Table 3
2
TX, RX software flow control
no transmit flow control
transmit Xon1, Xoff1
transmit Xon2, Xoff2
transmit Xon1 and Xon2, Xoff1 and Xoff2
no receive flow control
receiver compares Xon1, Xoff1
receiver compares Xon2, Xoff2
transmit Xon1, Xoff1
receiver compares Xon1 or Xon2, Xoff1 or Xoff2
transmit Xon2, Xoff2
receiver compares Xon1 or Xon2, Xoff1 or Xoff2
transmit Xon1 and Xon2, Xoff1 and Xoff2
receiver compares Xon1 and Xon2, Xoff1 and Xoff2
no transmit flow control
receiver compares Xon1 and Xon2, Xoff1 and Xoff2
SC16IS752/SC16IS762
C-bus/SPI interface, 64-byte FIFOs, IrDA SIR
shows software flow control options.
start
bit 0 to bit 7
002aab041
stop
© NXP B.V. 2008. All rights reserved.
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