參數(shù)資料
型號(hào)： SC16C754B
廠商： NXP Semiconductors N.V.
英文描述： 5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte FIFOs
中文描述： 5伏，3.3伏和2.5伏兆5四異步/秒（最大）64字節(jié)的FIFO
文件頁數(shù)： 8/50頁
文件大小： 259K
代理商： SC16C754B
9397 750 14668
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 02 — 13 June 2005
8 of 50
Philips Semiconductors
SC16C754B
5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte FIFOs
IOW
9
11
18
I
Input/Output Write strobe (active LOW).
A LOW-to-HIGH transition
on IOW will transfer the contents of the data bus (D[7:0]) from the
external CPU to an internal register that is defined by address bits
A[2:0] and CSA and CSD.
not connected
n.c.
-
1, 2, 20,
21, 22,
27, 40,
41, 42,
60, 61,
62, 80
33
31
-
RESET
27
37
I
Reset.
This pin will reset the internal registers and all the outputs.
The UART transmitter output and the receiver input will be disabled
during reset time. RESET is an active HIGH input.
Ring Indicator (active LOW).
These inputs are associated with
individual UART channels, A through D. A logic 0 on these pins
indicates the modem has received a ringing signal from the telephone
line. A LOW-to-HIGH transition on these input pins generates a
modem status interrupt, if enabled. The state of these inputs is
reflected in the modem status register (MSR).
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 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 SC16C754B. During the local loop-back
mode, these RX input pins are disabled and TX data is connected to
the UART RX input internally.
RIA
RIB
RIC
RID
63
19
30
50
78
24
38
64
8
28
42
62
I
RTSA
RTSB
RTSC
RTSD
5
13
36
44
7
15
47
55
14
22
48
56
O
RXA
RXB
RXC
RXD
RXRDY
62
20
29
51
-
77
25
37
65
34
7
29
41
63
38
I
O
Receive Ready (active LOW).
RXRDY contains the wire-ORed
status of all four receive channel FIFOs, RXRDYA to RXRDY D. It
goes LOW when the trigger level has been reached or a time-out
interrupt occurs. It goes HIGH when all RX FIFOs are empty and
there is an error in RX FIFO. This pin is associated with LQFP80 and
PLCC68 packages only.
Transmit data.
These outputs are associated with individual serial
transmit channel data from the SC16C754B. During the local
loop-back mode, the TX output pin is disabled and TX data is
internally connected to the UART RX input.
TXA
TXB
TXC
TXD
TXRDY
8
10
39
41
-
10
12
50
52
35
17
19
51
53
39
O
O
Transmit Ready (active LOW).
TXRDY contains the wire-ORed
status of all four transmit channel FIFOs, TXRDYA to TXRDY D. It
goes LOW when there are a trigger level number of spaces available.
It goes HIGH when all four TX buffers are full. This pin is associated
with LQFP80 and PLCC68 packages only.
Table 2:
Symbol
Pin description
…continued
Pin
LQFP64 LQFP80 PLCC68
Type
Description
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
SC16C754BIA68512 制造商:NXP Semiconductors 功能描述:IC QUAD UART FIFO 5MBPS 5.5V LCC-68
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