SGS Thomson Microelectronics 74LVC373ATTR, 74LVC373AMTR, 74LVC373AM Datasheet

1/10February 2002

■ 5V TOLERANT INPUTS

■ HIGH SPEED: t

PD

= 6.8ns (MAX.) at VCC = 3V

■ POWER DOWN PROTECTION ON INPU T S

AND OUTPUTS

■ SYMMETRICAL OUTPUT IMPEDANCE:

|I

OH

| = IOL = 24mA (MIN) at VCC = 3V

■ PCI BUS LEVELS GUARANT EED AT 2 4 mA

■ BALANCED PROPAGATION DELAYS:

t

PLH

≅ t

PHL

■ OPERATING VOLTAGE RANGE:

V

CC

(OPR) = 1.65V to 3.6V (1.2V Data

Retention)

■ PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 373

■ LATCH-UP PERFORMANCE EXCEEDS

500mA (JESD 17)

■ ESD PERFORMANCE:

HBM > 2000V (MIL STD 883 method 3015);
MM > 200V

DESCRIPTION

The 74LVC373A is a lo w voltage CMOS OCTAL
D-TYPE LATCH fabricated with sub-micron silicon
gate and double-layer metal wiring C

2

MOS

technology. It is ideal for 1.65 to 3.6 V

CC

operations and low power and low noise
applications.
These 8 bit D-Type latch are controlled by a latch
enable input (LE) and an output enable input (OE

).

While the LE inputs is held at a high level, t he Q

outputs will follow the data input precisely or
inversely. When the LE is taken low, the Q outputs
will be latched precisely or inversely at the logic
level of D input data. While the (OE

) input i s lo w,
the 8 outputs will be in a normal logic state (high or
low logic level) and while high level the outputs will
be in a high impedance state.
This device is designed to interface di rectly High
Speed CMOS systems with TTL and NMOS
components.
It has more speed performance at 3.3V than 5V
AC/ACT family, combined with a lower power
consumption.
All inputs are equipped with protection circuits
against static discharge, giving them 2KV ESD
immunity and transient excess voltage.

74LVC373A

OCTAL D-TYPE LATCH

HIGH PERFORMANCE

PIN CONNECTION AND IEC LOGIC SYMBOLS

ORDER CODES

PACKAGE TUBE T & R

SOP 74LVC373AM 74LVC373AMTR

TSSOP 74LVC373ATTR

TSSOPSOP

74LVC373A

2/10

INPUT AND OUTPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION TRUTH TABLE

X : Don’t Care
Z :High Impedance

ABSOLUTE MAXIMUM RATINGS

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

1) I

O

absolute ma xim um rating must be obse rved

2) V

O

< GND

PIN No SYMBOL NAME AND FUNCTION

1OE

Asynchronous Master
Reset (Active LOW)

2, 5, 6, 9, 12,

15, 16,19

Q0 to Q7 3-State Outputs

3, 4, 7, 8, 13,

14, 17, 18

D0 to D7 Data Inputs

11 LE Latch Enable Input
10 GND Ground (0V)
20 V

CC

Positive Supply Voltage

INPUTS OUTPUT

OE

LE D Q

HXXZ

LLX

NO

CHANGE
LHLL
LHHH

Symbol Parameter Value Unit

V

CC

Supply Voltage

-0.5 to +7.0 V

V

I

DC Input Voltage

-0.5 to +7.0 V

V

O

DC Output Voltage (VCC = 0V)

-0.5 to +7.0 V

V

O

DC Output Voltage (High or Low State) (note 1) -0.5 to VCC + 0.5

V

I

IK

DC Input Diode Current

- 50 mA

I

OK

DC Output Diode Current (note 2)

- 50 mA

I

O

DC Output Current

± 50 mA

I

CC

or I

GND

DC VCC or Ground Current per Supply Pin

± 100 mA

T

stg

Storage Temperature

-65 to +150 °C

T

L

Lead Temperature (10 sec)

300 °C

74LVC373A

3/10

RECOMMENDED OPERATING CONDITIONS

1) Truth T abl e guarante ed: 1.2V to 3.6 V

2) V

IN

from 0.8V to 2V at VCC = 3.0V

DC SPECIFICATIONS

Symbol Parameter Value Unit

V

CC

Supply Voltage (note 1)

1.65 to 3.6 V

V

I

Input Voltage

0 to 5.5 V

V

O

Output Voltage (VCC = 0V)

0 to 5.5 V

V

O

Output Voltage (High or Low State) 0 to V

CC

V

I

OH

, I

OL

High or Low Level Output Current (VCC = 3.0 to 3.6V)

± 24 mA

I

OH

, I

OL

High or Low Level Output Current (VCC = 2.7 to 3.0V)

± 12 mA

I

OH

, I

OL

High or Low Level Output Current (VCC = 2.3 to 2.7V)

± 8mA

I

OH

, I

OL

High or Low Level Output Current (VCC = 1.65 to 2.3V)

± 4mA

T

op

Operating Temperature

-55 to 125 °C

dt/dv Input Rise and Fall Time (note 2) 0 to 10 ns/V

Symbol Parameter

Test Condition Value

Unit

V

CC

(V)

-40 to 85 °C -55 to 125 °C

Min. Max. Min. Max.

V

IH

High Level Input
Voltage

1.65 to 1.95

0.65V

CC

0.65V

CC

V

2.3 to 2.7 1.7 1.7

2.7 to 3.6 2 2

V

IL

Low Level Input
Voltage

1.65 to 1.95

0.35V

CC

0.35V

CC

V

2.3 to 2.7 0.7 0.7

2.7 to 3.6 0.8 0.8

V

OH

High Level Output
Voltage

1.65 to 3.6

IO=-100 µAVCC-0.2 VCC-0.2

V

1.65

I

O

=-4 mA

1.2 1.2

2.3

I

O

=-8 mA

1.7 1.7

2.7

I

O

=-12 mA

2.2 2.2

3.0

I

O

=-18 mA

2.4 2.4

3.0

I

O

=-24 mA

2.2 2.2

V

OL

Low Level Output
Voltage

1.65 to 3.6

I

O

=100 µA

0.2 0.2

V

1.65

I

O

=4 mA

0.45 0.45

2.3

I

O

=8 mA

0.7 0.7

2.7

I

O

=12 mA

0.4 0.4

3.0

I

O

=24 mA

0.55 0.55

I

I

Input Leakage
Current

3.6

V

I

= 0 to 5.5V

± 5 ± 5 µA

I

off

Power Off Leakage
Current

0

V

I

or VO = 5.5V

10 10 µA

I

OZ

High Impedance
Output Leakage
Current

3.6 VI = VIH orVIL
V

O

= 0 to 5.5V

± 10 ± 10 µA

I

CC

Quiescent Supply
Current

3.6

VI = VCC or GND

10 10

µA

V

I

or VO = 3.6 to

5.5V

± 10 ± 10

∆I

CC

ICC incr. per Input

2.7 to 3.6

VIH = VCC-0.6V

500 500 µA