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

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

Significantly Reduces I

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.

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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.

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Copyright  1998, Texas Instruments Incorporated