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参数资料
| 型号： | SN54BCT25245FKR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | BCT/FBT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CQCC28 |
| 封装： | CERAMIC, LCC-28 |
| 文件页数： | 6/8页 |
| 文件大小： | 174K |
| 代理商： | SN54BCT25245FKR |
Product Folder: SN74BCT25245, Octal 25 Ohm Bus Transceivers
PRODUCT SUPPORT: TRAINING
SN74BCT25245, Octal 25 Ohm Bus Transceivers
DEVICE STATUS: ACTIVE
PARAMETER NAME SN74BCT25245
Voltage Nodes (V) 5
Vcc range (V)
4.5 to 5.5
Input Level
TTL
Output Level
TTL
Output Drive (mA) -80/188
No. of Outputs
8
Logic
True
Static Current
96
tpd max (ns)
7.2
FEATURES
q
State-of-the-Art BiCMOS Design Significantly Reduces ICCZ
q
ESD Protection Exceeds 2000 V Per MIL-STD-883C, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF,R = 0)
q
Designed to Facilitate Incident-Wave Switching for Line Impedances of 25
or Greater
q
Distributed VCC and GND Pins Minimize Noise Generated by the Simultaneous Switching of Outputs
q
Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK) and Flatpacks (W), and Standard Plastic and Ceramic 300-mil DIPs (JT, NT)
DESCRIPTION
The BCT25245 is a 25-
octal bus transceiver designed for asynchronous communication between data buses. It improves both the performance and density of 3-state memory address drivers,
clock drivers, and bus-oriented transceivers.
The device allows data transmission from the A bus to the B bus or from the B bus to the A bus depending upon the logic level at the direction-control (DIR) input. The output-enable (
) input
can disable the device so that both buses are effectively isolated.
These transceivers are capable of sinking 188-mA IOL, which facilitates switching 25-
transmission lines on the incident wave. The distributed VCC and GND pins minimize switching noise for
more reliable system operation.
The SN54BCT25245 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74BCT25245 is characterized for operation from 0°C to 70°C.
TECHNICAL DOCUMENTS
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DATASHEET
file:///H|/imaging/BITTING/cpl/20020930_1/09272002_10/TXII/09272002_HTML/sn74bct25245.html (1 of 3) [Oct-03-2002 6:10:52 PM]
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