參數(shù)資料
型號(hào): SN74HCT240PWLE
廠商: TEXAS INSTRUMENTS INC
元件分類(lèi): 總線收發(fā)器
英文描述: HCT SERIES, DUAL 4-BIT DRIVER, INVERTED OUTPUT, PDSO20
封裝: TSSOP-20
文件頁(yè)數(shù): 1/8頁(yè)
文件大小: 130K
代理商: SN74HCT240PWLE
SN54HCT240, SN74HCT240
OCTAL BUFFERS AND LINE DRIVERS
WITH 3-STATE OUTPUTS
SCLS174C – MARCH 1984 – REVISED FEBRUARY 2000
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Inputs Are TTL-Voltage Compatible
D 3-State Outputs Drive Bus Lines or Buffer
Memory Address Registers
D High-Current Outputs Drive up to 15 LSTTL
Loads
D Package Options Include Plastic
Small-Outline (DW), Thin Shrink
Small-Outline (PW), and Ceramic Flat (W)
Packages, Ceramic Chip Carriers (FK), and
Standard 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. The ’HCT240 devices are organized
as
two
4-bit
buffers/drivers
with
separate
output-enable (OE) inputs. When OE is low, the
device passes inverted data from the A inputs to
the Y outputs. When OE is high, the outputs are
in the high-impedance state.
The SN54HCT240 is characterized for operation
over the full military temperature range of –55
°C
to 125
°C. The SN74HCT240 is characterized for
operation from –40
°C to 85°C.
FUNCTION TABLE
(each buffer/driver)
INPUTS
OUTPUT
OE
A
Y
L
H
L
LH
H
X
Z
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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
SN54HCT240 ...J OR W PACKAGE
SN74HCT240 ...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
SN54HCT240 . . . FK PACKAGE
(TOP VIEW)
2Y4
1A1
1OE
1Y4
2A2
2OE
2Y1
GND
2A1
V
CC
Copyright
2000, 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.
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
相關(guān)PDF資料
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SN74HCT243N-00 HCT SERIES, 4-BIT TRANSCEIVER, TRUE OUTPUT, PDIP14
SN74HCT243DR-00 HCT SERIES, 4-BIT TRANSCEIVER, TRUE OUTPUT, PDSO14
SN74HCT242D-00 HCT SERIES, 4-BIT TRANSCEIVER, INVERTED OUTPUT, PDSO14
SN54HCT243J-00 HCT SERIES, 4-BIT TRANSCEIVER, TRUE OUTPUT, CDIP14
SNJ54HCT242J-00 HCT SERIES, 4-BIT TRANSCEIVER, INVERTED OUTPUT, CDIP14
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