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參數(shù)資料
| 型號： | SC16C752 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Dual UART with 64-byte FIFO |
| 中文描述： | 雙UART具有64字節(jié)FIFO |
| 文件頁數(shù)： | 6/47頁 |
| 文件大?。?/td> | 604K |
| 代理商： | SC16C752 |
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Philips Semiconductors
SC16C752
Dual UART with 64-byte FIFO
Product data
Rev. 04 — 20 June 2003
6 of 47
9397 750 11635
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
6.
Functional description
The SC16C752 UART is pin-compatible with the SC16C2550 UART. It provides more
enhanced features. All additional features are provided through a special enhanced
feature register.
The UART will perform serial-to-parallel conversion on data characters received from
peripheral devices or modems, and parallel-to-parallel conversion on data characters
transmitted by the processor. The complete status of each channel of the SC16C752
UART can be read at any time during functional operation by the processor.
The SC16C752 can be placed in an alternate mode (FIFO mode) relieving the
processor of excessive software overhead by buffering received/transmitted
characters. Both the receiver and transmitter FIFOs can store up to 64 bytes
(including three additional bits of error status per byte for the receiver FIFO) and have
selectable or programmable trigger levels. Primary outputs RXRDY and TXRDY allow
signalling of DMA transfers.
RTSA, RTSB
33, 22
O
Request to Send (Active-LOW).
These outputs are associated with individual UART
channels, A and B. 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 these pins are set to a logic 1.
These pins only affect the transmit and receive operations when Auto-RTS function is
enabled via the Enhanced Feature Register (EFR[6]) for hardware flow control
operation.
Receive data input.
These inputs are associated with individual serial channel data to
the SC16C752. During the local loop-back mode, these RX input pins are disabled
and TX data is connected to the UART RX input internally.
Receive Ready (Active-LOW).
RXRDYA or RXRDYB goes LOW when the trigger
level has been reached or the FIFO has at least one character. It goes HIGH when the
RX FIFO is empty.
Transmit data A, B.
These outputs are associated with individual serial transmit
channel data from the SC16C752. During the local loop-back mode, the TX output pin
is disabled and TX data is internally connected to the UART RX input.
Transmit Ready (Active-LOW).
TXRDYA or TXRDYB go LOW when there are at least
a trigger level number of spaces available or when the FIFO is empty. It goes HIGH
when the FIFO is full or not empty.
Power supply input.
Crystal 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 12
). Alternatively, an external clock can be connected to
this pin to provide custom data rates.
Output of the crystal oscillator or buffered clock.
(See also XTAL1.) XTAL2 is used
as a crystal oscillator output or a buffered clock output.
RXA, RXB
5, 4
I
RXRDYA,
RXRDYB
31, 18
O
TXA, TXB
7, 8
O
TXRDYA,
TXRDYB
43, 6
O
V
CC
XTAL1
42
13
I
I
XTAL2
14
O
Table 2:
Symbol
Pin description
…continued
Pin
Type
Description
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| SC16C752IB48 | Dual UART with 64-byte FIFO |
| SC16C754 | Quad UART with 64-byte FIFO |
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| SC16C754IB80 | Quad UART with 64-byte FIFO |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC16C752B | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 64-byte FIFOs |
| SC16C752B_10 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:5 V, 2.2 V and 2.5 V dual UART, 5 Mbit/s (max.), with 64-byte FIFOs |
| SC16C752BIB48 | 制造商:NXP Semiconductors 功能描述:IC UART DUAL 64BYTE FIFO 16C752 制造商:NXP Semiconductors 功能描述:IC, UART, DUAL, 64BYTE FIFO, 16C752 制造商:NXP Semiconductors 功能描述:IC, UART, DUAL, 64BYTE FIFO, 16C752, No. of Channels:2, Data Rate:5Mbps, Supply Voltage Min:2.25V, Supply Voltage Max:5.5V, Digital IC Case Style:LQFP, No. of Pins:48, Operating Temperature Min:-40C, Operating Temperature Max:85C, , RoHS Compliant: Yes |
| SC16C752BIB48,128 | 功能描述:UART 接口集成電路 16CB 2.5V-5V 2CH RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| SC16C752BIB48,151 | 功能描述:UART 接口集成電路 16CB 2.5V-5V 2CH RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
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