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参数资料
| 型号： | SN54ABT651FKR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | ABT SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, CQCC28 |
| 封装： | CERAMIC, LCC-28 |
| 文件页数： | 3/13页 |
| 文件大小： | 255K |
| 代理商： | SN54ABT651FKR |
Product Folder: SN74ABT651, Octal Bus Transceivers And Registers With 3-State Outputs
PRODUCT FOLDER | PRODUCT INFO: FEATURES | DESCRIPTION | DATASHEETS | PRICING/AVAILABILITY/PKG | SAMPLES
PRODUCT SUPPORT: TRAINING
SN74ABT651, Octal Bus Transceivers And Registers With 3-State Outputs
DEVICE STATUS: ACTIVE
PARAMETER NAME SN74ABT651
Voltage Nodes (V) 5
Vcc range (V)
4.5 to 5.5
Input Level
TTL
Output Level
TTL
No. of Outputs
8
Static Current
15.12
FEATURES
q
State-of-the-Art EPIC-II BTM BiCMOS Design Significantly Reduces Power Dissipation
q
ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
q
Latch-Up Performance Exceeds 500 mA Per JESD 17
q
Typical VOLP (Output Ground Bounce) < 1 V at VCC = 5 V, TA = 25°C
q
High-Drive Outputs (-32-mA IOH, 64-mA IOL)
q
Multiplexed Real-Time and Stored Data
q
Inverting Data Paths
q
Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB), and Thin Shrink Small-Outline (PW) Packages, Ceramic Chip Carriers (FK), and Plastic (NT) and Ceramic (JT)
DIPs
EPIC-IIB is a trademark of Texas Instruments Incorporated.
DESCRIPTION
These devices consist of bus-transceiver circuits, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the data bus or from the internal storage
registers. Output-enable (OEAB and OEBA\) inputs are provided to control the transceiver functions. The select-control (SAB and SBA) inputs are provided to select whether real-time or stored
data is transferred. A low input level selects real-time data, and a high input level selects stored data. Figure 1 illustrates the four fundamental bus-management functions that can be performed
with the 'ABT651 devices.
Data on the A or B bus, or both, can be stored in the internal D flip-flops by low-to-high transitions at the appropriate clock (CLKAB or CLKBA) inputs, regardless of the select- or enable-control
pins. When SAB and SBA are in the real-time transfer mode, it also is possible to store data without using the internal D-type flip-flops by simultaneously enabling OEAB and OEBA\. In this
configuration, each output reinforces its input. When all the other data sources to the two sets of bus lines are at high impedance, each set remains at its last state.
To ensure the high-impedance state during power up or power down, OEBA\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking
capability of the driver (B to A). OEAB should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver (A to B).
The SN54ABT651 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABT651 is characterized for operation from -40°C to 85°C.
The data output functions may be enabled or disabled by a variety of level combinations at OEAB or OEBA\. Data input functions are always enabled; i.e., data at the bus terminals is stored on every low-to-high transition of the
clock inputs.
file:///H|/imaging/BITTING/cpl/20020930_1/09272002_10/TXII/09272002_HTML/sn74abt651.html (1 of 3) [Oct-03-2002 2:15:33 PM]
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相关代理商/技术参数 |
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|---|---|
| SN54ABT651JT | 制造商:TI 制造商全称:Texas Instruments 功能描述:OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS |
| SN54ABT652 | 制造商:TI 制造商全称:Texas Instruments 功能描述:OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS |
| SN54ABT652A | 制造商:TI 制造商全称:Texas Instruments 功能描述:OCTAL REGISTERED TRANSCEIVERS WITH 3-STATE OUTPUTS |
| SN54ABT652A_07 | 制造商:TI 制造商全称:Texas Instruments 功能描述:OCTAL REGISTERED TRANSCEIVERS WITH 3-STATE OUTPUTS |
| SN54ABT652A_08 | 制造商:TI 制造商全称:Texas Instruments 功能描述:OCTAL REGISTERED TRANSCEIVERS WITH 3-STATE OUTPUTS |
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