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參數(shù)資料
| 型號： | SC16C652B |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 5V, 3.3 V and 2.5V dual UART, 5 Mbit/s (max.),with 32-byte FIFOs and infrared(IrDA) encoder/decoder |
| 中文描述： | 5V的，3.3V和2.5V雙，5兆的UART /秒（最大），32字節(jié)的FIFO和紅外線（IrDA）編碼器/解碼器 |
| 文件頁數(shù)： | 6/44頁 |
| 文件大小： | 205K |
| 代理商： | SC16C652B |
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Philips Semiconductors
SC16C652B
Dual UART with 32-byte FIFOs and IrDA encoder/decoder
Product data
Rev. 03 — 10 December 2004
6 of 44
9397 750 14452
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
TXRDYA,
TXRDYB
43, 6
-
O
Transmit Ready A, B (Active-LOW).
These outputs provide the TX FIFO/THR
status for individual transmit channels (A-B). TXRDYn is primarily intended for
monitoring DMA mode 1 transfers for the transmit data FIFOs. An individual
channel’s TXRDYA, TXRDYB buffer ready status is indicated by logic 0, i.e., at
lease one location is empty and available in the FIFO or THR. This pin goes to a
logic 1 (DMA mode 1) when there are no more empty locations in the FIFO or
THR. This signal can also be used for single mode transfers (DMA mode 0).
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 this pin and XTAL2 to form an
internal oscillator circuit. This configuration requires an external 1 M
resistor
between the XTAL1 and XTAL2 pins. Alternatively, an external clock can be
connected to this pin to provide custom data rates. (See
Section 6.8
“Programmable baud rate generator”
.) See
Figure 4
.
Output of the crystal oscillator or buffered clock.
(See also XTAL1.) Crystal
oscillator output or buffered clock output. Should be left open if an external clock is
connected to XTAL1. For extended frequency operation, this pin should be tied to
V
CC
via a 2 k
resistor.
Carrier Detect (Active-LOW).
These inputs are associated with individual UART
channels A through B. A logic 0 on this pin indicates that a carrier has been
detected by the modem for that channel.
Clear to Send (Active-LOW).
These inputs are associated with individual UART
channels, A through B. A logic 0 on the CTS pin indicates the modem or data set
is ready to accept transmit data from the SC16C652B. Status can be tested by
reading MSR[4]. This pin has no effect on the UART’s transmit or receive
operation.
Data Set Ready (Active-LOW).
These inputs are associated with individual UART
channels, A through B. A logic 0 on this pin indicates the modem or data set is
powered-on and is ready for data exchange with the UART. This pin has no effect
on the UART’s transmit or receive operation.
Data Terminal Ready (Active-LOW).
These outputs are associated with
individual UART channels, A through B. A logic 0 on this pin indicates that the
SC16C652B is powered-on and ready. This pin can be controlled via the modem
control register. Writing a logic 1 to MCR[0] will set the DTR output to logic 0,
enabling the modem. This pin will be a logic 1 after writing a logic 0 to MCR[0], or
after a reset. This pin has no effect on the UART’s transmit or receive operation.
Ring Indicator (Active-LOW).
These inputs are associated with individual UART
channels, A through B. A logic 0 on this pin indicates the modem has received a
ringing signal from the telephone line. A logic 1 transition on this input pin will
generate an interrupt.
V
CC
XTAL1
42
13
26
10
I
I
XTAL2
14
11
O
CDA,
CDB
40, 16
-
I
CTSA,
CTSB
38, 23
25, 16
I
DSRA,
DSRB
39, 20
-
I
DTRA,
DTRB
34, 35
-
O
RIA, RIB
41, 21
-
I
Table 2:
Symbol
Pin description
…continued
Pin
LQFP48 HVQFN32
Type Description
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SC16C652 | Dual UART with 32 bytes of transmit and receive FIFOs |
| SC16C652IB48 | Dual UART with 32 bytes of transmit and receive FIFOs |
| SC16C654IB64 | Quad UART with 64-byte FIFO and infrared (IrDA) encoder/decoder |
| SC16C654 | Quad UART with 64-byte FIFO and infrared (IrDA) encoder/decoder |
| SC16C654BIEC | 5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.), with 64-byte FIFOs and infrared (IrDA) encoder/decoder |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC16C652BIB48 | 功能描述:UART 接口集成電路 16CB 2.5V-5V 2CH UART 32B FIFO 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 |
| SC16C652BIB48,128 | 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 |
| SC16C652BIB48,151 | 功能描述:UART 接口集成電路 2CH. UART 32B FIFO 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 |
| SC16C652BIB48,157 | 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 |
| SC16C652BIB48151 | 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述: |
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