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ST16C654DCQ64 датащи(PDF) 6 Page - Exar Corporation |
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ST16C654DCQ64 датащи(HTML) 6 Page - Exar Corporation |
6 / 51 page ST16C654/654D 2.97V TO 5.5V QUAD UART WITH 64-BYTE FIFO REV. 5.0.0 6 FSRS# - - 76 I FIFO Status Register Select (active low input with internal pull-up). The content of the FSTAT register is placed on the data bus when this pin becomes active. However it should be noted, D0-D3 con- tain the inverted logic states of TXRDY# A-D pins, and D4-D7 the logic states (un-inverted) of RXRDY# A-D pins. A valid address is not required when reading this status register. MODEM OR SERIAL I/O INTERFACE TXA TXB TXC TXD 8 10 39 41 17 19 51 53 14 16 65 67 O UART channels A-D Transmit Data and infrared transmit data. Standard transmit and receive interface is enabled when MCR[6] = 0. In this mode, the TX signal will be a logic 1 during reset, or idle (no data). Infrared IrDA transmit and receive interface is enabled when MCR[6] = 1. In the Infrared mode, the inactive state (no data) for the Infrared encoder/decoder interface is a logic 0. IRTXA IRTXB IRTXC IRTXD - - - - - - - - 6 24 57 75 O UART channel A-D Infrared Transmit Data. The inactive state (no data) for the Infrared encoder/decoder interface is a logic 0. Regardless of the logic state of MCR bit-6, this pin will be operating in the Infrared mode. RXA RXB RXC RXD 62 20 29 51 7 29 41 63 97 34 47 85 I UART channel A-D Receive Data or infrared receive data. Normal receive data input must idle at logic 1 condition. RTSA# RTSB# RTSC# RTSD# 5 13 36 44 14 22 48 56 11 19 62 70 O 8$57 FKDQQHOV $' 5HTXHVWWR6HQG DFWLYH ORZ RU JHQHUDO SXU SRVH RXWSXW 7KLV RXWSXW PXVW EH DVVHUWHG SULRU WR XVLQJ DXWR 576 IORZ FRQWURO VHH ()5>@ 0&5>@ DQG ,(5>@ $OVR VHH)LJXUH ,I WKHVH RXWSXWV DUH QRW XVHG OHDYH WKHPXQFRQQHFWHG CTSA# CTSB# CTSC# CTSD# 2 16 33 47 11 25 45 59 8 22 59 73 I 8$57 FKDQQHOV $' &OHDUWR6HQG DFWLYH ORZ RU JHQHUDO SXUSRVH LQSXW ,W FDQ EH XVHG IRU DXWR &76 IORZ FRQWURO VHH ()5>@ DQG ,(5>@ $OVR VHH )LJXUH 7KHVH LQSXWV VKRXOG EH FRQQHFWHG WR 9&& ZKHQ QRW XVHG DTRA# DTRB# DTRC# DTRD# 3 15 34 46 12 24 46 58 9 21 60 72 O 8$57 FKDQQHOV $' 'DWD7HUPLQDO5HDG\ DFWLYH ORZ RU JHQHUDO SXUSRVH RXWSXW ,I WKHVH RXWSXWV DUH QRW XVHG OHDYH WKHPXQFRQ QHFWHG DSRA# DSRB# DSRC# DSRD# 1 17 32 48 10 26 44 60 7 23 58 74 I 8$57 FKDQQHOV $' 'DWD6HW5HDG\ DFWLYH ORZ RU JHQHUDO SXU SRVH LQSXW 7KLV LQSXW VKRXOG EH FRQQHFWHG WR 9&& ZKHQ QRW XVHG 7KLV LQSXW KDV QR HIIHFW RQ WKH 8$57 CDA# CDB# CDC# CDD# 64 18 31 49 9 27 43 61 99 32 49 83 I UART channels A-D Carrier-Detect (active low) or general purpose input. 7KLV LQSXW VKRXOG EH FRQQHFWHG WR 9&& ZKHQ QRW XVHG 7KLV LQSXW KDV QR HIIHFW RQ WKH 8$57 Pin Description NAME 64-TQFP PIN # 68-PLCC PIN# 100-QFP PIN # TYPE DESCRIPTION |
Аналогичный номер детали - ST16C654DCQ64 |
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Аналогичное описание - ST16C654DCQ64 |
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