Datasheet 74V1G77 Datasheet (ST)

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74V1G7 7

SINGLE D-TYPE LATCH

■ HIGH SPEED: t

■ LOW POWER DISSIPATION:

I

= 1µA(MAX.) at TA=25°C

CC

■ HIGH NOISE IMMUNITY:

V

= V

NIH

■ POWER DOWN PROTECTION ON INPUTS

■ SYMMETRICAL OUTPUT IMPEDANCE:

|I

| = IOL = 8mA (MIN) at VCC = 4.5V

OH

■ BALANCED PROPAGATION DELAYS:

t

≅ t

PLH

■ OPERATING VOLTAGE RANGE:

V

(OPR) = 2V to 5.5V

CC

■ IMPROVED LATCH-UP IMMUNITY

= 28% VCC (MIN.)

NIL

PHL

= 4.4ns (TYP.) at VCC = 5V

PD

DESCRIPTION

The 74V1G77 is an advanced high-speed CMOS
SINGLE D-TYPE LATCH fabricated with
sub-micron silicon gate and double-layer metal
wiring C

2

MOS technology. It is designed to
operate from 2V to 5.5V, making this device ideal
for portable applications.
The single D-Type latch is controlled by a Latch
Enable Input (LE ).
While the LE in put is held at a high level, the Q
output will follow the data input precisely. When

SOT323-5LSOT23-5L

ORDER CODES

PACKAGE T & R

SOT23-5L 74V1G77STR

SOT323-5L 74V1G77CTR

the LE input is taken lo w the Q output is latched
precisely at the logic level of D input data.
Power down protection is provided on in puts and
0 to 7V c an be accepted on inputs with no regard
to the supply voltage. This device can be used to
interface 5V to 3V. It’s available in the commercial
and extended temperature range.
All inputs and output are equippe d with prot ection
circuits against stati c disc harge , giving t hem ES D
immunity and transient excess voltage.

PIN CONNECTION AND IEC LOGIC SYMBOLS

1/10July 2001

74V1G77

INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION

PIN No SYMBOL NAME QND FUNCTION

1 D Data Input
2 LE Latch Enable Input
4 Q Data Output
3 GND Ground (0V)
5

V

CC

TRUTH TABLE

DLEQ

L L No Change *

H L No Change *

LHQn

HHQn

(*) Q output is latched at the time when the le input is taken low logic
level.

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

V

V

I

I

OK

I

I

or I

CC

T

T

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied.

Supply Voltage

CC

DC Input Voltage

I

DC Output Voltage -0.5 to VCC + 0.5

O

DC Input Diode Current

IK

DC Output Diode Current
DC Output Current

O

DC VCC or Ground Current

GND

Storage Temperature

stg

Lead Temperature (10 sec)

L

Positive Supply Voltage

-0.5 to +7.0 V

-0.5 to +7.0 V
V

- 20 mA

± 20 mA
± 25 mA
± 50 mA

-65 to +150 °C

260 °C

RECOMMENDED OPERATING CONDITIONS

Symbol Parameter Value Unit

V

V

V

T

dt/dv

1) VIN from 30 % to 70% of V

2/10

Supply Voltage

CC

Input Voltage

I

Output Voltage 0 to V

O

Operating Temperature

op

Input Rise and Fall Time (note 1) (V
(V

CC

= 3.3 ± 0.3V)

CC

= 5.0 ± 0.5V)

CC

2 to 5.5 V
0 to 5.5 V

CC

-55 to 125 °C
0 to 100

0 to 20

V

ns/V
ns/V

DC SPECIFICATIONS

Symbol Parameter

V

V

V

V

I

High Level Input

IH

Voltage

Low Level Input

IL

Voltage

High Level Output

OH

Voltage

Low Level Output

OL

Voltage

I

Input Leakage

I

Current
Quiescent Supply

CC

Current

Test Condition Value

V

(V)

CC

= 25°C

A

Min. Typ. Max. Min. Max. Min. Max.

-40 to 85°C -55 to 125°C

T

2.0 1.5 1.5 1.5

3.0 to

5.5

0.7V

CC

0.7V

CC

0.7V

CC

2.0 0.5 0.5 0.5

3.0 to

5.5

2.0

3.0

4.5

3.0

4.5

2.0

3.0

4.5

3.0

4.5

0 to

5.5

5.5

=-50 µA

I

O

I

=-50 µA

O

I

=-50 µA

O

I

=-4 mA

O

I

=-8 mA

O

IO=50 µA
I

=50 µA

O

I

=50 µA

O

I

=4 mA

O

I

=8 mA

O

V

= 5.5V or GND

I

= VCC or GND

V

I

1.9 2.0 1.9 1.9

2.9 3.0 2.9 2.9

4.4 4.5 4.4 4.4

2.58 2.48 2.4

3.94 3.8 3.7

0.3V

CC

0.3V

CC

0.0 0.1 0.1 0.1

0.0 0.1 0.1 0.1

0.0 0.1 0.1 0.1

0.36 0.44 0.55

0.36 0.44 0.55

± 0.1 ± 1 ± 1 µA

11020µA

74V1G77

Unit

0.3V

CC

V

V

V

V

AC ELECTRICAL CHARACTERISTICS (Input t

Test Condition Value

Symbol Parameter

t

PLH tPHL

t

PLH tPHL

(*) Vol tage range is 3.3V ± 0.3V
(**) Voltage range is 5.0V ±

Propagation Delay
Time LE to Q

Propagation Delay
Time D to Q

LE Pulse Width,

t

W

HIGH
Setup Time D to

t

s

LE, HIGH or LOW
Hold Time D to LE,

t

h

HIGH or LOW

0.5V

3.3

3.3

5.0

5.0

3.3

3.3

5.0

5.0

3.3

5.0

3.3

5.0

3.3

5.0

C

V

CC

(V)

L

(pF)

(*)

15 6.2 9.0 1.0 10.5 1.0 11.5

(*)

50 6.8 10.0 1.0 11.5 1.0 13.0

(**)

15 4.4 6.5 1.0 7.5 1.0 8.5

(**)

50 4.8 7.0 1.0 8.0 1.0 9.0

(*)

15 7.2 10.0 1.0 11.5 1.0 13.0

(*)

50 7.9 11.0 1.0 12.5 1.0 14.0

(**)

15 4.4 6.5 1.0 7.5 1.0 8.5

(**)

50 4.8 7.0 1.0 8.0 1.0 9.0

(*)

(**)

(*)

(**)

(*)

(**)

= tf = 3ns)

r

T

= 25°C

A

-40 to 85°C -55 to 125°C

Min. Typ. Max. Min. Max. Min. Max.

4.0 4.0 4.0

3.0 3.0 3.0

3.0 3.0 3.0

2.0 2.0 2.0

1.0 1.0 1.0

1.0 1.0 1.0

Unit

ns

ns

ns

ns

ns

3/10

74V1G77

CAPACITIVE CHARACTERISTICS

Test Condition Value

= 25°C

Symbol Parameter

T

A

Min. Typ. Max. Min. Max. Min. Max.

C

C

Input Capacitance

IN

Power Dissipation

PD

Capacitance

4101010pF

8pF

(note 1)

1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without

load. (R ef er to Test Circui t ). Average ope rating curre nt can be obtained by the follow i ng equation. I

TEST CIRCUIT

-40 to 85°C -55 to 125°C

= CPD x VCC x fIN + I

CC(opr)

CC

Unit

CL = 15/50pF or e qui valent (inc lu des jig and probe capacitance)
R

= Z

of pulse generator (typically 50Ω)

T

OUT

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74V1G77

WAVEFORM 1: LE TO Qn PROPAGATION DELAYS, LE MINIMUN PULSE WIDTH, Dn TO LE SETUP
AND HOLD TIMES (f=1MHz; 50% duty cycle)

WAVEFORM 2: PROPAGATION DELAY TIME (f=1 MHz; 5 0% duty cycl e )

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74V1G77

SOT23-5L MECHANICAL DATA

mm. mils

DIM.

MIN. TYP MAX. MIN. TYP. MAX.

A 0.90 1.45 35.4 57.1

A1 0.00 0.15 0.0 5.9

A2 0.90 1.30 35.4 51.2

b 0.35 0.50 13.7 19.7

C 0.09 0.20 3.5 7.8

D 2.80 3.00 110.2 118.1

E 2.60 3.00 102.3 118.1

E1 1.50 1.75 59.0 68.8

e0.95 37.4

e1 1.9 74.8

L 0.35 0.55 13.7 21.6

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74V1G77

SOT323-5L MECHANICAL DATA

mm. mils

DIM.

MIN. TYP MAX. MIN. TYP. MAX.

A 0.80 1.10 31.5 43.3

A1 0.00 0.10 0.0 3.9

A2 0.80 1.00 31.5 39.4

b 0.15 0.30 5.9 11.8

C 0.10 0.18 3.9 7.1

D 1.80 2.20 70.9 86.6

E 1.80 2.40 70.9 94.5

E1 1.15 1.35 45.3 53.1

e0.65 25.6

e1 1.3 51.2

L 0.10 0.30 3.9 11.8

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74V1G77

Tape & Reel SOT23-xL MECHANICAL DATA

DIM.

MIN. TYP MAX. MIN. TYP. MAX.

A 180 7.086
C 12.8 13.0 13.2 0.504 0.512 0.519
D 20.2 0.795
N 60 2.362

T 14.4 0.567
Ao 3.13 3.23 3.33 0.123 0.127 0.131
Bo 3.07 3.17 3.27 0.120 0.124 0.128
Ko 1.27 1.37 1.47 0.050 0.054 0.0.58
Po 3.9 4.0 4.1 0.153 0.157 0.161

P 3.9 4.0 4.1 0.153 0.157 0.161

mm. inch

8/10

Tape & Reel SOT323-xL MECHANICAL DATA

74V1G77

DIM.

MIN. TYP MAX. MIN. TYP. MAX.

A 175 180 185 6.889 7.086 7.283

C 12.8 13 13.2 0.504 0.512 0.519

D 20.2 0.795

N 59.5 60 60.5 2.362

T 14.4 0.567
Ao 2.25 0.088
Bo 2.7 0.106
Ko 1.2 0.047
Po 3.98 4 4.2 0.156 0.157 0.165

P 3.98 4 4.2 0.156 0.157 0.165

mm. inch

9/10

74V1G77

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mentioned in this publication ar e subject to change without notice. This publication supersedes and replaces all information
previously supplied. S TMicroelectronics products are not authorized for use as critica l components in life suppo rt devices or
systems without express written approval of STMicroelectronics.

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