參數(shù)資料
型號(hào)： SC16C754
廠商： NXP Semiconductors N.V.
英文描述： Quad UART with 64-byte FIFO
中文描述： 四UART的64字節(jié)FIFO
文件頁(yè)數(shù)： 6/49頁(yè)
文件大?。?/td> 622K
代理商： SC16C754
Philips Semiconductors
SC16C754
Quad UART with 64-byte FIFO
Product data
Rev. 04 — 19 June 2003
6 of 49
9397 750 11618
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
CLKSEL
26
30
I
Clock Select.
CLKSEL selects the divide-by-1 or divide-by-4 prescalable
clock. During the reset, a logic 1 (V
CC
) on CLKSEL selects the divide-by-1
prescaler. A logic 0 (GND) on CLKSEL selects the divide-by-4 prescaler.
The value of CLKSEL is latched into MCR[7] at the trailing edge of RESET.
A logic 1(V
CC
) on CLKSEL will latch a 0 into MCR[7]. A logic 0 (GND) on
CLKSEL will latch a 1 into MCR[7]. MCR[7] can be changed after RESET to
alter the prescaler value.
Chip Select (Active-LOW).
These pins enable data transfers between the
user CPU and the SC16C754 for the channel(s) addressed. Individual
UART sections (A, B, C, D) are addressed by providing a logic LOW on the
respective CSA through CSD pins.
Clear to Send (Active-LOW).
These inputs are associated with individual
UART channels A through D. A logic 0 (LOW) on the CTS pins indicates the
modem or data set is ready to accept transmit data from the SC16C754.
Status can be tested by reading MSR[4]. These pins only affect the transmit
and receive operations when Auto-CTS function is enabled via the
Enhanced Feature Register EFR[7] for hardware flow control operation.
Data bus (bi-directional).
These pins are the 8-bit, 3-state data bus for
transferring information to or from the controlling CPU. D0 is the least
significant bit and the first data bit in a transmit or receive serial data stream.
Data Set Ready (Active-LOW).
These inputs are associated with individual
UART channels A through D. A logic 0 (LOW) on these pins indicates the
modem or data set is powered-on and is ready for data exchange with the
UART. The state of these inputs is reflected in the modem status register
(MSR).
Data Terminal Ready (Active-LOW).
These outputs are associated with
individual UART channels A through D. A logic 0 (LOW) on these pins
indicates that the SC16C754 is powered-on and ready. These pins can be
controlled via the modem control register. Writing a logic 1 to MCR[0] will
set the DTR output to logic 0 (LOW), enabling the modem. The output of
these pins will be a logic 1 after writing a logic 0 to MCR[0], or after a reset.
Signal and power ground.
CSA, CSB,
CSC, CSD
9, 13,
49, 53
16, 20,
50, 54
I
CTSA, CTSB,
CTSC, CTSD
4, 18,
44, 58
11, 25,
45, 59
I
D0-D2,
D3-D7
68-70,
71-75
66-68,
1-5
I/O
DSRA, DSRB,
DSRC, DSRD
3, 19,
43, 59
10, 26,
44, 60
I
DTRA, DTRB,
DTRC, DTRD
5, 17,
45, 57
12, 24,
46, 58
O
GND
16, 36,
56, 76
8, 14,
48, 54
6, 23,
40, 57
15, 21,
49, 55
I
INTA, INTB,
INTC, INTD
O
Interrupt A, B, C, and D (Active-HIGH).
These pins provide individual
channel interrupts INTA through INTD. INTA through INTD are enabled
when MCR[3] is set to a logic 1, interrupt sources are enabled in the
interrupt enable register (IER). Interrupt conditions include: receiver errors,
available receiver buffer data, available transmit buffer space, or when a
modem status flag is detected. INTA-INTD are in the high-impedance state
after reset.
Interrupt select (Active-HIGH with internal pull-down).
INTSEL can be
used in conjunction with MCR[3] to enable or disable the 3-STate interrupts
INTA-INTD or override MCR[3] and force continuous interrupts. Interrupt
outputs are enabled continuously by making this pin a logic 1. Driving this
pin LOW allows MCR[3] to control the 3-State interrupt output. In this mode,
MCR[3] is set to a logic 1 to enable the 3-State outputs.
Input/Output Read strobe (Active-LOW).
A HIGH-to-LOW transition on
IOR will load the contents of an internal register defined by address bits
A0-A2 onto the SC16C754 data bus (D0-D7) for access by external CPU.
INTSEL
67
65
I
IOR
51
52
I
Table 2:
Symbol
Pin description
…continued
Pin
LQFP80 PLCC68
Type
Description
相關(guān)PDF資料
PDF描述
SC16C754IA68 Quad UART with 64-byte FIFO
SC16C754IB80 Quad UART with 64-byte FIFO
SC2000 Universal Timeslot Interchange
SC2001G-10 Bus Exchanger
SC2001G-13 Bus Exchanger
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SC16C754B 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte FIFOs
SC16C754BIA68 功能描述:UART 接口集成電路 16CB 2.5V-5V 4CH UART 64B 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
SC16C754BIA68,512 功能描述:UART 接口集成電路 16CB 2.5V-5V 4CH 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
SC16C754BIA68,518 功能描述:UART 接口集成電路 4CH. UART 64B 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
SC16C754BIA68,529 功能描述:UART 接口集成電路 16CB 2.5V-5V 4CH 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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*