Texas Instruments SN54AS175AJ, SNJ54AS175AFK, SNJ54AS175AJ, SNJ54AS175AW Datasheet

SN54ALS174, SN54ALS175, SN54AS174, SN54AS175A
SN74ALS174, SN74ALS175, SN74AS174, SN74AS175B

HEX/QUADRUPLE D-TYPE FLIP-FLOPS WITH CLEAR

SDAS207C – APRIL 1982 – REVISED OCTOBER 1995

Copyright  1995, Texas Instruments Incorporated

1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

• ′ALS174 and ′AS174 Contain Six Flip-Flops

With Single-Rail Outputs

• ′ALS175, SN54AS175A, and SN74AS175B

Contain Four Flip-Flops With Double-Rail
Outputs

• Buffered Clock and Direct-Clear Inputs

• Applications Include:

– Buffer/Storage Registers
– Shift Registers
– Pattern Generators

• Fully Buffered Outputs for Maximum

Isolation From External Disturbances
(′AS Only)

• Package Options Include Plastic

Small-Outline (D) Packages, Ceramic Chip
Carriers (FK), and Standard Plastic (N) and
Ceramic (J) 300-mil DIPs

description

These positive-edge-triggered flip-flops utilize
TTL circuitry to implement D-type flip-flop logic. All
have a direct-clear (CLR

) input, and the ′ALS175,
SN54AS175A, and SN74AS175B feature
complementary outputs from each flip-flop.

Information at the data (D) inputs meeting the
setup-time requirements is transferred to the
outputs on the positive-going edge of the clock
pulse. Clock triggering occurs at a particular
voltage level and is not directly related to the
transition time of the positive-going pulse. When
the clock (CLK) input is at either the high or low
level, the D-input signal has no effect at the output.

These circuits are fully compatible for use with
most TTL circuits.

The SN54ALS174, SN54ALS175, SN54AS174,
and SN54AS175A are characterized for operation
over the full military temperature range of –55°C
to 125°C. The SN74ALS174, SN74ALS175,
SN74AS174, and SN74AS175B are
characterized for operation from 0°C to 70°C.

SN54ALS175, SN54AS175A ...J PACKAGE

SN74ALS175, SN74AS175B ...D OR N PACKAGE

(TOP VIEW)

SN54ALS174, SN54AS174 ...J PACKAGE

SN74ALS174, SN74AS174 ...D OR N PACKAGE

(TOP VIEW)

3212019

910111213

4
5
6
7
8

18
17
16
15
14

6D
5D
NC
5Q
4D

1D
2D

NC

2Q
3D

SN54ALS174, SN54AS174 . . . FK PACKAGE

(TOP VIEW)

1Q

CLR

NC

CLK

4Q

6Q

3Q

GND

NC

NC – No internal connection

V

CC

1
2
3
4
5
6
7
8

16
15
14
13
12
11
10

9

CLR

1Q
1D
2D
2Q
3D
3Q

GND

V

CC

6Q
6D
5D
5Q
4D
4Q
CLK

3212019

910111213

4
5
6
7
8

18
17
16
15
14

4Q
4D
NC
3D
3Q

1Q
1D

NC

2D
2Q

SN54ALS175A, SN54AS175A . . . FK PACKAGE

(TOP VIEW)

1Q

CLR

NC

CLK

3Q

4Q

2Q

GND

NC

V

CC

1
2
3
4
5
6
7
8

16
15
14
13
12
11
10

9

CLR

1Q
1Q
1D
2D
2Q
2Q

GND

V

CC

4Q
4Q
4D
3D
3Q
3Q
CLK

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.

SN54ALS174, SN54ALS175, SN54AS174, SN54AS175A
SN74ALS174, SN74ALS175, SN74AS174, SN74AS175B
HEX/QUADRUPLE D-TYPE FLIP-FLOPS WITH CLEAR

SDAS207C – APRIL 1982 – REVISED OCTOBER 1995

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

FUNCTION TABLE

(each flip-flop)

INPUTS

OUTPUTS

CLR CLK D Q Q

†

L X X L H
H ↑ HHL
H↑LLH
HLXQ

0

Q

0

†

′ALS175, SN54AS175A, and SN74AS175B only

logic symbols

‡

R

1
9

CLK

C1

1D

3

1D

4

2D

6

3D

11

4D

13

5D

14

6D

1Q

2

2Q

5

3Q

7

4Q

10

5Q

12

6Q

15

CLR

CLR

1Q

2Q

R

1
9

CLK

C1

1D

4

1D

3

1Q

2

5

2D

6

2Q

7

12

3D

11

3Q

10

13

4D

14

4Q

15

3Q

4Q

′ALS174, ′AS174

′ALS175, SN54AS175A, and SN74AS175B

‡

These symbols are in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.

Pin numbers shown are for the D, J, and N packages.

logic diagrams (positive logic)

1D

C1

R

To Five Other Channels

1

9

3

2

CLR

CLK

1D

1Q

1Q

9

1

C1

1D

CLR

CLK

1D

R

1Q

To Three Other Channels

4

2

3

′ALS174, ′AS174 ′ALS175, SN54AS175A, and SN74AS175B

Pin numbers shown are for the D, J, and N packages.

SN54ALS174, SN54ALS175, SN54AS174, SN54AS175A
SN74ALS174, SN74ALS175, SN74AS174, SN74AS175B

HEX/QUADRUPLE D-TYPE FLIP-FLOPS WITH CLEAR

SDAS207C – APRIL 1982 – REVISED OCTOBER 1995

3

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

†

Supply voltage, V

CC

7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage, V

I

7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range, T

A

: SN54ALS174, SN54ALS175 –55°C to 125°C. . . . . . . . . . . . . . . .

SN74ALS174, SN74ALS175 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.

recommended operating conditions

SN54ALS174
SN54ALS175

SN74ALS174
SN74ALS175

UNIT

MIN NOM MAX MIN NOM MAX

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

OH

High-level output current –0.4 –0.4 mA

I

OL

Low-level output current 4 8 mA

f

clock

Clock frequency 0 40 0 50 MHz

CLR low 15 10

t

w

Pulse duration

CLK high

12.5 10

ns
CLK low 12.5 10
Data 15 10

t

su

S

etup time before

CLK↑

CLR inactive 8 6

ns

t

h

Hold time, data after CLK↑ 0 0 ns

T

A

Operating free-air temperature –55 125 0 70 °C

electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)

PARAMETER TEST CONDITIONS

SN54ALS174
SN54ALS175

SN74ALS174
SN74ALS175

UNIT

MIN TYP‡MAX MIN TYP‡MAX

V

IK

VCC = 4.5 V, II = –18 mA –1.5 –1.5 V

V

OH

VCC = 4.5 V to 5.5 V, IOH = –0.4 mA VCC –2 VCC –2 V

IOL = 4 mA 0.25 0.4 0.25 0.4

VOLV

CC

=

4.5 V

IOL = 8 mA 0.35 0.5

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

All others

–0.1 –0.1

I

IL

CLK

V

CC

= 5.5 V,

V

I

= 0.4

V

–0.15

mA

I

O

§

VCC = 5.5 V, VO = 2.25 V –20 –112 –30 –112 mA

′ALS174

11 19 11 19

I

CC

′ALS175

V

CC

= 5.5 V,

See Note 1

8 14 9 14

mA

‡

All typical values are at VCC = 5 V, TA = 25°C.

§

The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.

NOTE 1: ICC is measured with D inputs and CLR

grounded, and CLK at 4.5 V .