Texas Instruments SN74BCT241DBLE, SN74BCT241DBR, SN74BCT241DW, SN74BCT241DWR, SN74BCT241N Datasheet

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SN54BCT241, SN74BCT241 OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS005D – OCTOBER 1987 – REVISED APRIL 1994
Copyright 1994, Texas Instruments Incorporated
2–1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
State-of-the-Art BiCMOS Design
CCZ
ESD Protection Exceeds 2000 V
Per MIL-STD-883C, Method 3015
3-State Outputs Drive Bus Lines or Buffer
Memory Address Registers
Package Options Include Plastic
Small-Outline (DW) and Shrink Small-Outline (DB) Packages, Ceramic Chip Carriers (FK) and Flatpacks (W), and Standard Plastic and Ceramic 300-mil DIPs (J, N)
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 ′BCT240 and ′BCT244, these devices provide the choice of selected combinations of inverting and noninverting outputs, symmetrical OE
(active-low output-enable) inputs, and complementary OE and OE inputs.
The SN54BCT241 is characterized for operation over the full military temperature range of –55°C to 125°C. The SN74BCT241 is characterized for operation from 0°C to 70°C.
FUNCTION TABLES
INPUTS
OUTPUT
1OE 1A
1Y
L H H L LL H X Z
INPUTS
OUTPUT
2OE 2A
2Y
H H H H LL L 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
V
CC
2OE 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1
SN54BCT241 ...J OR W PACKAGE
SN74BCT241 . . . DB, DW OR N PACKAGE
(TOP VIEW)
3 2 1 20 19
910111213
4 5 6 7 8
18 17 16 15 14
1Y1 2A4 1Y2 2A3 1Y3
1A2 2Y3 1A3 2Y2 1A4
SN54BCT241 . . . FK PACKAGE
(TOP VIEW)
2Y4
1A1
1OE
1Y4
2A2 2OE
2Y1
GND
2A1
V
CC
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.
SN54BCT241, SN74BCT241 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
SCBS005D – OCTOBER 1987 – REVISED APRIL 1994
2–2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
logic symbol
logic diagram (positive logic)
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
2
1A1
4
1A2
6
1A3
8
1A4
EN
1
1Y1
18
1Y2
16
1Y3
14
1Y4
12
11
2A1
13
2A2
15
2A3
17
2A4
EN
19
2OE
2Y1
9
2Y2
7
2Y3
5
2Y4
3
1OE
1
2
4
6
8
19
11
13
15
17 3
5
7
9
12
14
16
18
1A1
1A2
1A3
1A4
1Y1
2OE
2A1
2A2
2A3
2A4
2Y1
1Y2
1Y3
1Y4
2Y2
2Y3
2Y4
1OE
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
CC
– 0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI (see Note 1) – 0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the disabled or power-off state, V
O
– 0.5 V to 5.5 V. . . . . . . . . . . . . . .
Voltage range applied to any output in the high state, V
O
– 0.5 V to V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, IIK –30 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current into any output in the low state: SN54BCT241 96 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74BCT241 128 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range: SN54BCT241 – 55°C to 125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74BCT241 0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range – 65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
SN54BCT241, SN74BCT241 OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS005D – OCTOBER 1987 – REVISED APRIL 1994
2–3
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
recommended operating conditions
SN54BCT241 SN74BCT241
MIN NOM MAX MIN NOM MAX
UNIT
V
CC
Supply voltage 4.5 5 5.5 4.5 5 5.5 V
V
IH
High-level input voltage 2 2 V
V
IL
Low-level input voltage 0.8 0.8 V
I
IK
Input clamp current –18 –18 mA
I
OH
High-level output current –12 –15 mA
I
OL
Low-level output current 48 64 mA
T
A
Operating free-air temperature –55 125 0 70 °C
electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)
SN54BCT241 SN74BCT241
PARAMETER
TEST CONDITIONS
MIN TYP†MAX MIN TYP†MAX
UNIT
V
IK
VCC = 4.5 V, II = –18 mA –1.2 –1.2 V
IOH = –3 mA 2.4 3.3 2.4 3.3
V
OH
VCC = 4.5 V
IOH = –12 mA 2 3.2
V IOH = –15 mA 2 3.1 IOL = 48 mA 0.38 0.55
VOLV
CC
= 4.5
V
IOL = 64 mA 0.42 0.55
V
I
I
VCC = 5.5 V, VI = 7 V 0.1 0.1 mA
I
IH
VCC = 5.5 V, VI = 2.7 V 20 20 µA
1OE or 2OE
–1 –1
I
IL
Any A input
V
CC
=
5.5 V
,
V
I
=
0.5 V
–1.6 –1.6
mA
I
OZH
VCC = 5.5 V, VO = 2.7 V 50 50 µA
I
OZL
VCC = 5.5 V, VO = 0.5 V –50 –50 µA
I
OS
VCC = 5.5 V, VO = 0 –100 –225 –100 –225 mA
I
CCH
VCC = 5.5 V, Outputs open 23 43 23 43 mA
I
CCL
VCC = 5.5 V, Outputs open 53 85 53 85 mA
I
CCZ
VCC = 5.5 V, Outputs open 4 10 4 10 mA
C
i
VCC = 5 V, VI = 2.5 V or 0.5 V 6 6 pF
C
o
VCC = 5 V, VO = 2.5 V or 0.5 V 11 11 pF
All typical values are at VCC = 5 V, TA = 25°C.
Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
SN54BCT241, SN74BCT241 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
SCBS005D – OCTOBER 1987 – REVISED APRIL 1994
2–4
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
switching characteristics (see Note 2)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V, CL = 50 pF, R1 = 500 Ω, R2 = 500 Ω, TA = 25°C
VCC = 4.5 V to 5.5 V, CL = 50 pF, R1 = 500 Ω, R2 = 500 Ω, TA = MIN to MAX
UNIT
BCT241 SN54BCT241 SN74BCT241
MIN TYP MAX MIN MAX MIN MAX
t
PLH
0.5 2.5 4.5 0.5 5.2 0.5 4.9
t
PHL
A
Y
1 3 5.4 1 6.3 1 5.9
ns
t
PZH
1 5.7 7.8 1 9.1 1 8.7
t
PZL
OE
or
OE
Y
1 5.2 8.6 1 10 1 9.4
ns
t
PHZ
1 5.8 6.8 1 8.4 1 8.1
t
PLZ
OE or OE
Y
1 7 8.1 1 11 1 9.9
ns
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
NOTE 2: Load circuits and voltage waveforms are shown in Section 1.
IMPORTANT NOTICE
T exas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements.
CERT AIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICA TIONS IS UNDERSTOOD T O BE FULLY AT THE CUSTOMER’S RISK.
In order to minimize risks associated with the customer’s applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. TI’s publication of information regarding any third party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.
Copyright 1998, Texas Instruments Incorporated
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