Texas Instruments SN74F573N Handleiding

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SDFS011A − MARCH 1987 − REVISED OCTOBER 1993

2−1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443

•Eight Latches in a Single Package

•3-State Bus-Driving True Outputs

•Full Parallel Access for Loading

•Buered Control Inputs

•Package Options Include Plastic

Small-Outline Packages, Ceramic Chip

Carriers, and Standard Plastic and Ceramic

300-mil DIPs

description

These 8-bit latches feature 3-state outputs

designed specifically for driving highly capacitive

or relatively low-impedance loads. They are

particularly suitable for implementing buffer

registers, I/O ports, bidirectional bus drivers, and

working registers.

The eight latches of the ′F573 are transparent

D-type latches. While the latch enable (LE) input

is high, the Q outputs follow the data (D) inputs.

When the latch enable is taken low, the Q outputs

are latched at the logic levels set up at the D

inputs.

A buffered output enable (OE) input can be used

to place the eight outputs in either a normal logic

state (high or low logic levels) or a high-

impedance state. In the high-impedance state, the

outputs neither load nor drive the bus lines

significantly. The high-impedance state and

increased drive provide the capability to drive bus

lines without need for interface or pullup

components.

The output enable (OE) input does not aect the internal operations of the latches. Old data can be retained

or new data can be entered while the outputs are in the high-impedance state.

The SN54F573 is characterized for operation over the full military temperature range of −55° °C to 125 C. The

SN74F573 is characterized for operation from 0°C to 70°C.

FUNCTION TABLE

(each latch)

INPUTS

OUTPUT

OE LE D

OUTPUT

L H H H

L H L L

L L X Q0

H X X Z

GND

VCC

SN54F573 . . . J PACKAGE

SN74F573 . . . DW OR N PACKAGE

(TOP VIEW)

3 2 1 20 19

9 10 11 12 13

7Q 1Q

SN54F573 . . . FK PACKAGE

(TOP VIEW)

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

SDFS011A − MARCH 1987 − REVISED OCTOBER 1993

2−2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251−1443

logic symbol†logic diagram (positive logic)

1D 3

2D 4

4D 6

7D 9

To Seven Other Channels

†This symbol is in accordance with ANSI/IEEE Std 91-1984 and

IEC Publication 617-12.

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

Supply voltage range, VCC −0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage range, VI (see Note 1) −1.2 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input current range −30 mA to 5 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Voltage range applied to any output in the disabled or power-off state −0.5 V to 5.5 V. . . . . . . . . . . . . . . . . . .

Voltage range applied to any output in the high state −0.5 V to VCC

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Current into any output in the low state: SN54F573 40 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SN74F573 48 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range: SN54F573 −55° °C to 125 C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SN74F573 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 voltage ratings may be exceeded provided the input current ratings are observed.

recommended operating conditions

SN54F573 SN74F573

UNIT

MIN NOM MAX MIN NOM MAX

UNIT

VCC Supply voltage 4.5 5 5.5 4.5 5 5.5 V

VIH High-level input voltage 2 2 V

VIL Low-level input voltage 0.8 0.8 V

IIK Input clamp current −18 −18 mA

IOH High-level output current − 3 − 3 mA

IOL Low-level output current 20 24 mA

TAOperating free-air temperature −55 125 0 70 C°

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SDFS011A − MARCH 1987 − REVISED OCTOBER 1993

2−3

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443

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

otherwise noted)

PARAMETER

TEST CONDITIONS

SN54F573 SN74F573

UNIT

PARAMETER

TEST CONDITIONS

MIN TYP†MAX MIN TYP†MAX

UNIT

VIK VCC = 4.5 V, II = −18 mA −1.2 −1.2 V

V 4 5 V

IOH = − 1 mA 2.5 3.4 2.5 3.4

VOH

VCC = 4.5 V IOH = − 3 mA 2.4 3.3 2.4 3.3 V

VCC = 4.75 V, IOH = − 1 mA to −3 mA 2.7

V 4 5 V

IOL = 20 mA 0.3 0.5

VOL VCC = 4.5 V IOL = 24 mA 0.35 0.5 V

IOZH VCC = 5.5 V, V

O = 2.7 V 50 50 Aµ

IOZL VCC = 5.5 V, V

O = 0.5 V −50 −50 µA

IIVCC = 5.5 V, V

I = 7 V 0.1 0.1 mA

IIH VCC = 5.5 V, V

I = 2.7 V 20 20 Aµ

IIL VCC = 5.5 V, V

I = 0.5 V − 0.6 − 0.6 mA

IOS‡VCC = 5.5 V, V

O = 0 −60 −60−150 −150 mA

ICCZ VCC = 5.5 V, See Note 2 38 55 38 55 mA

†All typical values are at V

CC = 5 V, T

A = 25°C.

‡Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second.

NOTE 2: ICCZ is measured with OE at 4.5 V and all other inputs grounded.

timing requirements over recommended ranges of supply voltage and operating free-air

temperature (unless otherwise noted)

VCC = 5 V,

TA = 25°C

SN54F573

SN74F573

UNIT

′F573

SN54F573

SN74F573

UNIT

MIN MAX MIN MAX MIN MAX

twPulse duration, LE high 6 6 6 ns

tsu Setup time, data before LE↓2 2 2 ns

thHold time, data after LE↓3 3 3 ns

switching characteristics (see Note 3)

PARAMETER FROM

(INPUT)

(OUTPUT)

VCC = 5 V,

CL = 50 pF,

RL = 500 Ω,

TA = 25°C

VCC = 4.5 V to 5.5 V,

CL = 50 pF,

RL = 500Ω,

TA = MIN to MAX§UNIT

(INPUT)

(OUTPUT)

′F573 SN54F573 SN74F573

MIN TYP MAX MIN MAX MIN MAX

tPLH

2 4.9 7 1.5 9 2.2 8

tPHL

1.2 3.3 5 1 8 1.2 6 ns

tPLH

4.2 8.6 11.5 3.7 13.5 4.2 13

tPHL

2.2 4.8 7 1.5 9 2.2 8 ns

tPZH

1.2 4.6 1 13 1.2 1211

tPZL

1.2 5.2 7.5 1 10 1.2 8.5 ns

tPHZ

1.2 4.1 6.5 1 8.5 1.2 7.5

tPLZ

1.2 3.4 6 1 7 1.2 6

§For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.

NOTE 3: Load circuits and waveforms are shown in Section 1.

Product specificaties

Merk:	Texas Instruments
Categorie:	Niet gecategoriseerd
Model:	SN74F573N
Breedte:	26.92 mm
Diepte:	6.6 mm
Hoogte:	4.57 mm
Breedte verpakking:	13.97 mm
Diepte verpakking:	506 mm
Hoogte verpakking:	11.23 mm
Soort:	Logic IC
Type verpakking:	PDIP
Aantal per verpakking:	20 stuk(s)
Temperatuur bij opslag:	-65 - 150 °C
Bedrijfstemperatuur (T-T):	0 - 70 °C
Aantal pinnen:	20
Breedte (met pennen):	26.92 mm
Diepte (met pennen):	10.92 mm
Hoogte (met pennen):	8.26 mm