參數(shù)資料
型號(hào)： SN75LBC978DL
廠商： TEXAS INSTRUMENTS INC
元件分類： Buffer和線驅(qū)動(dòng)
英文描述： 9 LINE TRANSCEIVER, PDSO56
封裝： GREEN, PLASTIC, SSOP-56
文件頁數(shù)： 1/20頁
文件大小： 415K
代理商： SN75LBC978DL
SN75LBC978
9CHANNEL DIFFERENTIAL TRANSCEIVER
SLLS134F APRIL 1992 REVISED APRIL 2005
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Nine Differential Channels for the Data and
Control Paths of the Differential Small
Computer Systems Interface (SCSI)
D Meets or Exceeds the Requirements of
ANSI Standard RS-485 and ISO
8482:1987(E)
D Packaged in Shrink Small-Outline Package
With 25-mil Terminal Pitch
D Designed to Operate at 10 Million Transfers
Per Second
D Low Disabled Supply Current
1.4 mA Typ
D Thermal Shutdown Protection
D Power-Up/Power-Down Glitch Protection
D Positive and Negative Output-Current
Limiting
D Open-Circuit Fail-Safe Receiver Design
description
The SN75LBC978 is a nine-channel differential
transceiver based on the 75LBC176 LinASIC
cell. Use of TI’s LinBiCMOS
process technolo-
gy allows the power reduction necessary to
integrate nine differential balanced transceivers.
On-chip
enabling
logic
makes
this
device
applicable for the data path (eight data bits plus
parity) and the control path (nine bits) for the Small
Computer Systems Interface (SCSI) standard.
The WRAP function allows in-circuit testing and
wired-OR channels for the BSY, RST, and SEL
signals of the SCSI bus.
The SN75LBC978 is packaged in a shrink
small-outline package (DL) with improved thermal
characteristics using heat-sink terminals. This
package is ideal for low-profile, space-restricted
applications such as hard disk drives.
The switching speed of the SN75LBC978 is sufficient to transfer data over the data bus at 10 million transfers
per second. Each of the nine identical channels conforms to the requirements of the ANSI RS-485 and
ISO 8482:1987(E) standards referenced by ANSI X3.131-1993 (SCSI-2) and the proposed SCSI-3 standards.
The SN75LBC978 is characterized for operation from 0
°C to 70°C.
LinASIC and LinBiCMOS are trademarks of Texas Instruments Incorporated.
Patent Pending
Copyright
1997, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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NC
WRAP2
WRAP1
1A
1DE/RE
2A
2DE/RE
3A
3DE/RE
4A
4DE/RE
VCC
GND
VCC
5A
5DE/RE
6A
6DE/RE
7A
7DE/RE
8A
8DE/RE
9A
9DE/RE
NC
CE
9B +
9B
8B +
8B
7B +
7B
6B +
6B
VCC
GND
VCC
5B +
5B
4B +
4B
3B +
3B
2B +
2B
1B +
1B
DL PACKAGE
(TOP VIEW)
Pins 13 through 17 and 40 through 44 are
connected together to the package lead
frame and signal ground.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SN75LBC978DLG4 功能描述:RS-485接口IC 9-Channel Diff Transceiver RoHS:否 制造商:Texas Instruments 數(shù)據(jù)速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
SN75LBC978DLR 功能描述:RS-485接口IC 9-Channel Diff Transceiver RoHS:否 制造商:Texas Instruments 數(shù)據(jù)速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
SN75LBC978DLRG4 功能描述:RS-485接口IC 9-Channel Diff Transceiver RoHS:否 制造商:Texas Instruments 數(shù)據(jù)速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
SN75LP1185DBR 功能描述:RS-232接口集成電路 LP Mult RS232 RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:
SN75LP1185DBRE4 功能描述:RS-232接口集成電路 Lo-Pwr Mult RS-232 Driver and Receiver RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝:
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