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| 型號： | SN74ABT2244DBR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | ABT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | PLASTIC, SSOP-24 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大小： | 154K |
| 代理商： | SN74ABT2244DBR |
SN54ABT2244, SN74ABT2244
OCTAL BUFFERS AND LINE/MOS DRIVERS
WITH 3-STATE OUTPUTS
SCBS106B – JANUARY 1991 – REVISED JULY 1994
Copyright
1994, Texas Instruments Incorporated
6–1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Output Ports Have Equivalent 25- Series
Resistors, So No External Resistors Are
Required
State-of-the-Art EPIC-ΙΙB BiCMOS Design
Significantly Reduces Power Dissipation
Typical V
OLP (Output Ground Bounce)
< 1 V at VCC = 5 V, TA = 25°C
Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages, Ceramic Chip Carriers (FK), and
Plastic (N) and Ceramic (J) DIPs
description
These octal buffers and line drivers are designed
specifically to improve both the performance and
density of 3-state memory address drivers, clock
drivers,
and
bus-oriented
receivers
and
transmitters. Taken together with the
′ABT2240
and
′ABT2241, these devices provide the choice
of
selected
combinations
of
inverting
and
noninverting outputs, symmetrical active-low
output-enable (OE) inputs, and complementary
OE and OE inputs. These devices feature high
fan-out and improved fan-in.
The outputs, which are designed to sink up to
12 mA, include 25-
series resistors to reduce
overshoot and undershoot.
To ensure the high-impedance state during power up or power down, OE 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.
The SN74ABT2244 is available in TI’s shrink small-outline package (DB), which provides the same I/O pin count
and functionality of standard small-outline packages in less than half the printed-circuit-board area.
The SN54ABT2244 is characterized for operation over the full military temperature range of – 55
°C to 125°C.
The SN74ABT2244 is characterized for operation from – 40
°C to 85°C.
FUNCTION TABLE
(each buffer)
INPUTS
OUTPUT
OE
A
Y
L
H
L
LL
H
X
Z
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
1OE
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
VCC
2OE
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
SN54ABT2244 ...J PACKAGE
SN74ABT2244 . . . DB, DW, N, OR PW PACKAGE
(TOP VIEW)
32
1 20 19
910 11 12 13
4
5
6
7
8
18
17
16
15
14
1Y1
2A4
1Y2
2A3
1Y3
1A2
2Y3
1A3
2Y2
1A4
SN54ABT2244 . . . FK PACKAGE
(TOP VIEW)
2Y4
1A1
1OE
1Y4
2A2
2OE
2Y1
GND
2A1
V
CC
EPIC-
ΙΙB is a trademark of 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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74ABT2244DW | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL BUFFERS AND LINE/MOS DRIVERS WITH 3-STATE OUTPUTS |
| SN74ABT2244DWR | 制造商:TI 功能描述:_ |
| SN74ABT2244N | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74ABT2244PW | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL BUFFERS AND LINE/MOS DRIVERS WITH 3-STATE OUTPUTS |
| SN74ABT2244PWLE | 制造商:Texas Instruments 功能描述: |
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