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参数资料
| 型号： | SC16C654IA68,512 |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 4 CHANNEL(S), 5M bps, SERIAL COMM CONTROLLER, PQCC68 |
| 封装： | PLASTIC, MS-018, SOT-188-2, LCC-68 |
| 文件页数： | 2/52页 |
| 文件大小： | 647K |
| 代理商： | SC16C654IA68,512 |
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Philips Semiconductors
SC16C654/654D
Quad UART with 64-byte FIFO and infrared (IrDA) encoder/decoder
Product data
Rev. 04 — 19 June 2003
10 of 52
9397 750 11617
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
RTSA, RTSB,
RTSC, RTSD
14, 22,
48, 56
5, 13,
36, 44
O
Request to Send (Active-LOW). These outputs are associated with individual
UART channels, A through D. 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 this pin will be set to a logic 1. This pin only affects the transmit and
receive operations when Auto RTS function is enabled via the Enhanced
Feature Register (EFR[6]) for hardware ow control operation.
R/W18
-
I
Read/Write strobe. This function is associated with the 68 mode only. This pin
provides the combined functions for Read or Write strobes.
Logic 1 = Read from UART register selected by CS and A0-A4.
Logic0=Write to UART register selected by CS and A0-A4.
RXA, RXB,
RXC, RXD
7, 29,
41, 63
62, 20,
29, 51
I
Receive data input RXA-RXD. These inputs are associated with individual
serial channel data to the SC16C654/654D. The RX signal will be a logic 1
during reset, idle (no data), or when the transmitter is disabled. During the local
loop-back mode, the RX input pin is disabled and TX data is connected to the
UART RX input internally.
RXRDY38
-
O
Receive Ready (Active-LOW). This function is associated with 68-pin package
only. RXRDY contains the wire-ORed status of all four receive channel FIFOs,
RXRDYA-RXRDYD. A logic 0 indicates receive data ready status, i.e., the RHR
is full, or the FIFO has one or more RX characters available for unloading. This
pin goes to a logic 1 when the FIFO/RHR is empty, or when there are no more
characters available in either the FIFO or RHR. Individual channel RX status is
read by examining individual internal registers via CS and A0-A4 pin functions.
TXA, TXB,
TXC, TXD
17, 19,
51, 53
8, 10,
39, 41
O
Transmit data A, B, C, D. These outputs are associated with individual serial
transmit channel data from the SC16C654/654D. The TX signal will be a logic 1
during reset, idle (no data), or when the transmitter is disabled. During the local
loop-back mode, the TX output pin is disabled and TX data is internally
connected to the UART RX input.
TXRDY39
-
O
Transmit Ready (Active-LOW). This function is associated with the 68-pin
package only. TXRDY contains the wire-ORed status of all four transmit
channel FIFOs, TXRDYA-TXRDYD. A logic 0 indicates a buffer ready status,
i.e., at least one location is empty and available in one of the TX channels
(A-D). This pin goes to a logic 1 when all four channels have no more empty
locations in the TX FIFO or THR. Individual channel TX status can be read by
examining individual internal registers via CS and A0-A4 pin functions.
VCC
13, 47,
64
4, 21,
35, 52
I
Power supply inputs.
XTAL1
35
25
I
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 (see Figure 6). Alternatively, an external clock can be
connected to this pin to provide custom data rates. (See Section 6.11
XTAL2
36
26
O
Output of the crystal oscillator or buffered clock. (See also XTAL1.) Crystal
oscillator output or buffered clock output.
Table 2:
Pin description…continued
Symbol
Pin
Type
Description
PLCC68 LQFP64
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SC16C654IB64 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Quad UART with 64-byte FIFO and infrared (IrDA) encoder/decoder |
| SC16C654IB64,128 | 功能描述:UART 接口集成电路 16C 2.5V-5V 4CH UART 64B FIFO RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| SC16C654IB64,151 | 功能描述:UART 接口集成电路 16C 2.5V-5V 4CH UART 64B FIFO RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| SC16C654IB64,157 | 功能描述:UART 接口集成电路 16C 2.5V-5V 4CH UART 64B FIFO RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| SC16C750 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Universal Asynchronous Receiver/Transmitter (UART) with 64-byte FIFO |
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