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參數(shù)資料
型號(hào)： ST16C2550CQ48
廠商： EXAR CORP
元件分類(lèi)： 微控制器/微處理器
英文描述： DUAL UART WITH 16-BYTE TRANSMIT AND RECEIVE FIFO’S
中文描述： 2 CHANNEL(S), 4M bps, SERIAL COMM CONTROLLER, PQFP48
封裝： 7 X 7 MM, 1 MM HEIGHT, TQFP-48
文件頁(yè)數(shù)： 1/34頁(yè)
文件大?。?/td> 443K
代理商： ST16C2550CQ48
EXAR
Corporation, 48720 Kato Road, Fremont, CA 94538
(510) 668-7000
FAX (510) 668-7017
ST16C2550
Rev. 3.20
PLCC Package
DUAL UART WITH 16-BYTE TRANSMIT
AND RECEIVE FIFOS
DESCRIPTION
The ST16C2550 (2550) is a dual universal asynchronous receiver and transmitter (UART). The ST16C2550 is
an improved version of the NS16C550 UART with higher operating speed and lower access time. The 2550
provides enhanced UART functions with 16 byte FIFOs, a modem control interface, and data rates up to 1.5Mbps.
Onboard status registers provide the user with error indications and operational status. System interrupts and
modem control features may be tailored by external software to meet specific user requirements. An internal loop-
back capability allows onboard diagnostics. Independent programmable baud rate generators are provided to
select transmit and receive clock rates from 50 Bps to 1.5 Mbps. The Baud rate generator can be configured for
either crystal or external clock input. The 2550 is available in a 40-pin plastic-DIP, 44-pin PLCC, and 48-pin TQFP
packages. The 40 pin package does not offer TXRDY and RXRDY pins (DMA Signal monitoring). Otherwise the
three package versions are the same. The 2550 is functionally compatible with the 16C2450. The 2550 is
fabricated in an advanced CMOS process to achieve low drain power and high speed requirements.
FEATURES
Pin and functionally compatible to ST16C2450/
Software compatible with INS8250, NS16C550
1.5Mbps transmit/receive operation (24MHz
Max.)
16 byte transmit FIFO to reduce the bandwidth
requirement of the external CPU.
16 byte receive FIFO with error flags to reduce the
bandwidth requirement of the external CPU.
Independent transmit and receive UART control
Four selectable Receive FIFO interrupt trigger
levels
Modem control signals (-CTS, -RTS, -DSR, -DTR,
-RI, -CD, and Software controllable line break)
Programmable character lengths (5, 6, 7, 8) with
Even, odd, or no parity
Status report register
Crystal or external clock input
460.8 Kbps transmit/receive operation with 7.3728
MHz crystal or external clock source
TTL compatible inputs, outputs
ORDERING INFORMATION
Part number
ST16C2550CP40
ST16C2550CJ44
ST16C2550CQ48 48
Pins Package
40
PDIP
44
PLCC
TQFP
Operating temperature
0° C to + 70° C
0° C to + 70° C
0° C to + 70° C
6
5
4
3
2
1
4
4
4
4
4
7
8
9
10
11
12
13
14
15
16
17
39
38
37
36
35
34
33
32
31
30
29
1
1
2
2
2
2
2
2
2
2
2
D5
D6
D7
RXB
RXA
-TXRDYB
TXA
TXB
-OPB
-CSA
-CSB
RESET
-DTRB
-DTRA
-RTSA
-OPA
-RXRDYA
INTA
INTB
A0
A1
A2
X
X
-
-
G
-
-
-
-
-
-
D
D
D
D
D
-
V
-
-
-
-
ST16C2550CJ44
Part number
ST16C2550IP40
ST16C2550IJ44
ST16C2550IQ48
Pins Package
40
PDIP
44
PLCC
48
TQFP
Operating temperature
-40° C to + 85° C
-40° C to + 85° C
-40° C to + 85° C
相關(guān)PDF資料
PDF描述
ST16C2550IJ44 DUAL UART WITH 16-BYTE TRANSMIT AND RECEIVE FIFO’S
ST16C2550IP40 DUAL UART WITH 16-BYTE TRANSMIT AND RECEIVE FIFO’S
ST16C2550CJ44 DUAL UART WITH 16-BYTE TRANSMIT AND RECEIVE FIFO’S
ST16C2550CP40 Power Supply IC; Supply Voltage Max:6V; Output Voltage:1.3V; Package/Case:20-TSSOP; Leaded Process Compatible:No; Output Voltage Max:1.3V; Peak Reflow Compatible (260 C):No; Supply Voltage Min:2.7V; Mounting Type:Surface Mount
ST16C2550IQ48 DUAL UART WITH 16-BYTE TRANSMIT AND RECEIVE FIFO’S
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST16C2550CQ48-F 功能描述:UART 接口集成電路 2.97V-5.5V 16B FIFO temp 0C to 70C; UART 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
ST16C2550CQ48TR-F 功能描述:UART 接口集成電路 DUAL UART W/16BYTE 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
ST16C2550IJ44 制造商:Exar Corporation 功能描述:
ST16C2550IJ44-F 功能描述:UART 接口集成電路 DUAL UART W/16BYTE 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
ST16C2550IJ44TR-F 制造商:Exar Corporation 功能描述:UART 2-CH 16Byte FIFO 3.3V/5V 44-Pin PLCC T/R 制造商:Exar Corporation 功能描述:ST16C2550IJ44TR-F
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