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參數資料
型號: XR16C864
廠商: Exar Corporation
元件分類: 通用總線功能
英文描述: Quad UART with RX/TX FIFO Counters and 128-byte FIFO(四通用異步接收器/發送器(帶RX/TX 先進先出計數器和128字節先進先出))
中文描述: 四路與異步接收/發送FIFO的計數器和128字節的FIFO(四通用異步接收器/發送器(帶了Rx / Tx先進先出計數器和128字節先進先出))
文件頁數: 1/46頁
文件大小: 381K
代理商: XR16C864
EXAR
Corporation, 48720 Kato Road, Fremont, CA 94538
(510) 668-7000
FAX (510) 668-7017
XR16C864
QUAD UART WITH RX/TX FIFO
COUNTERS,128-BYTE FIFO
Rev. 1.10
Figure 1, Pinout of the Device
DESCRIPTION
The XR16C864
1
(864) is a universal asynchronous receiver and transmitter (UART) with a dual interface compatible
with the ST16C554/654/854 and ST68C554. The 864 is an enhanced UART with 128 byte FIFO’s, Independent
Transmit and Receive FIFO counters, RS-485 Support, Independent Transmit and Receive DMA signals, automatic
hardware/software flow control, and data rates up to 1.5Mbps. Onboard status registers provide the user with error
indications and operational status, modem interface control. System interrupts may be tailored to meet user
requirements. An internal loop-back capability allows onboard diagnostics. The 864 is available in 100 pin QFP
packages. The XR16C864 offers faster channel status access by providing separate outputs for TXRDY and RXRDY,
offer separate Infrared TX outputs and a separate clock for channel C (CHCCLK) that can be used as a musical
instrument clock input. The 864 combines the package interface modes of the 16C554/654 and 68C554/654 series
on a single integrated chip.
FEATURES
Compatibility with the Industry Standard
ST16C554/654, ST68C554/654, TL16C554
1.5 Mbps transmit/receive operation (24MHz)
128 byte transmit FIFO
128 byte receive FIFO with error flags
Automatic RS-485 half-duplex switch
Independent transmit and receive DMA signals
Independent transmit and receive FIFO counter
Automatic software/hardware flow control
Programmable Xon/Xoff characters
Software selectable Baud Rate Generator pre-
scaleable clock rates of 1X, 4X.
Four selectable, and Programmable Transmit/
Receive FIFO interrupt trigger levels
Standard modem interface or infrared IrDA
encoder/decoder interface
Software flow control turned off optionally by any
(Xon) RX character
Independent clock input for channel C
FIFO monitoring and separate IrDA TX outputs
Sleep mode ( 200
μ
A stand-by)
100-pin QFP packages
ORDERING INFORMATION
Part number
XR16C864CQ
XR16C864IQ
Note 1: Covered by US Patent # 5,649,122
Pins
100
100
Package Operating temperature
QFP
QFP
-40° C to + 85° C
0° C to + 70° C
July 2000
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
3
3
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
4
4
5
1
9
9
9
9
9
9
9
9
9
9
8
8
8
8
8
8
8
8
8
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
BCLKA
-OP2A
RS485/-OP1A
DACKA
DREQA/-TXRDYA
IRTXA
-DSRA
-CTSA
-DTRA
VCC
-RTSA
INTA
-CSA
TXA
-IOW
TXB
-CSB
INTB
-RTSB
GND
-DTRB
-CTSB
-DSRB
IRTXB
DREQB/-TXRDYB
DACKB
AEN
RS485/-OP1B
-OP2B
RCLKB
D
-
-
R
C
1
A
A
A
X
X
C
R
-
-
G
R
-
-
D
BCLKD
-OP2D
-OP1D/RS485
DACKD
-CSRDY
IRTXD
-DSRD
-CTSD
-DTRD
GND
-RTSD
INTD
-CSD
TXD
-IOR
TXC
-CSC
INTC
-RTSC
VCC
-DTRC
-CTSC
-DSRC
IRTXC
-TXRDYC/DREQC
DACKC
TC
-OP1C/RS485
-OP2C
BCLKC
-
-
-
R
G
D
D
D
D
D
D
D
D
I
V
R
-
-
-
-
X
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相關代理商/技術參數
參數描述
XR16C864CQ 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
XR16C864CQ-0A-EVB 功能描述:UART 接口集成電路 Supports C864 100 ld QFP, ISA Interface RoHS:否 制造商:Texas Instruments 通道數量:2 數據速率: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
XR16C864CQ-0B-EB 功能描述:界面開發工具 Eval Board for XR16C864CQ Series RoHS:否 制造商:Bourns 產品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
XR16C864CQ-F 功能描述:UART 接口集成電路 UART RoHS:否 制造商:Texas Instruments 通道數量:2 數據速率: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
XR16C864CQTR-F 功能描述:UART 接口集成電路 UART RoHS:否 制造商:Texas Instruments 通道數量:2 數據速率: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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