Datasheet 74LCX162541TTR Datasheet (SGS Thomson Microelectronics)

LOW VOLTAGE CMOS 16-BIT BUS BUFFER (3-STATE)

WITH 5V TOLERANT INPUTS AND OUTPUTS

■ 5V TOLERANT INPUTS AND OUTPUTS

■ HIGH SPEED :

t

= 4.4 ns (MAX.) at VCC=3V

PD

■ POWER DOWN PROTECTION ON INPUTS

AND OUTPUTS

■ SYMMETRICAL OUTPUT IMPEDANCE:

|I

|=IOL= 12mA (MIN) at VCC=3V

OH

■ PCI BUS LEVELS GUARANTEED AT 12 mA

■ BALANCED PROPAGATION DELAYS:

t

≅ t

PLH

PHL

■ 26Ω SERIE RESISTORS IN OUTPUTS

■ OPERATING VOLTAGE RANGE:

V

(OPR) = 2.0V to 3.6V (1.5V Data

CC

Retention)

■ PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 162541

■ LATCH-UP PERFORMANCE EXCEEDS

500mA (JESD 17)

■ ESD PERFORMANCE:

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

74LCX162541

TSSOP

ORDER CODES

PACKAGE TUBE T & R

TSSOP 74LCX162541TTR

PIN CO NNE CTION

DESCRIPTION

The 74LCX162541 is a low voltage CMOS 16 BIT
BUS BUFFER (NON-INVERTED) fabricated with
sub-micron silicon gate and double-layer metal
wiring C

2

MOS technology. It is ideal for low power
and high speed 3.3V applications; it can be
interfaced to 5V signal environment for both inputs
and outputs.
This is composed of two 8-bit sections with sepa­rate output-enable signals. For either 8-bit buffers
section, the 3 STATE control gate operates as a
two input AND such that if eith er nG1

and nG2 are
high, all outputs are in the high impedence state.
This device is designed to be used with 3 state
memory address drivers, etc.
The device circuits is including 26Ω series resis­tance in the outputs. These resistors permit to re­duce line noise in high speed applications.
All inputs and outpu ts are equipped with protec­tion circuits against static discharge, giving them
2KV ESD immunity and transient excess vo ltage.

1/10February 2003

74LCX162541

INPUT AND OUTPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION

PIN No SYMBOL NAME AND FUNCTION

1, 48 1G1

2, 3,5,6,8,9,

11, 12

13,14, 16,17,

19, 20, 22, 23

24, 25 2G1

36,35, 33,32,

30, 29, 27, 26

47,46, 44,43,

41, 40, 38, 37
4, 10, 15, 21,

28, 34, 39, 45

7, 18, 31, 42 V

,1G2 Output Enable Inputs

1Y1 to 1Y8 Data Outputs

2Y1 to 2Y8 Data Outputs

,2G2 Output Enable Inputs

2A1 to 2A8 Data Outputs

1A1 to 1A8 Data Outputs

GND Ground (0V)

CC

Positive Supply Voltage

TRUTH TABLE

INPUTS OUTPUT

G1

HXXZ
XHXZ

LLHH
LLLL

X : Don‘t Care
Z : High Impedance

G2 An Yn

IEC LOGIC SYMBOLS

2/10

74LCX162541

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

V
V
V

I

I

OK

I

I

CC

I

GND

T

T

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

1) I

absolute maximum rating must be observed

O

2) VO<GND

RECOMMENDED OPERATING CONDITIONS

Symbol Parameter Value Unit

V

V
V
V

I

OH,IOL

I

OH,IOL

T

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

1) Truth Table guaranteed: 1.5V to 3.6V
from0.8Vto 2V at VCC=3.0V

2) V

IN

Supply Voltage

CC

DC Input Voltage

I

DC Output Voltage (OFF State)

O

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

O

DC Input Diode Current

IK

DC Output Diode Current (note 2)
DC Output Current

O

DC Supply Current per Supply Pin
DC Ground Current per Supply Pin
Storage Temperature

stg

Lead Temperature (10 sec)

L

Supply Voltage (note 1)

CC

Input Voltage

I

Output Voltage (OFF State)

O

Output Voltage (High or Low State) 0 to V

O

High or Low Level Output Current (VCC= 3.0 to 3.6V)
High or Low Level Output Current (VCC= 2.7V )
Operating Temperature

op

-0.5 to +7.0 V

-0.5 to +7.0 V

-0.5 to +7.0 V
V

-50 mA

-50 mA

± 50 mA
± 100 mA
± 100 mA

-65 to +150 °C
300 °C

2.0 to 3.6 V
0 to 5.5 V
0 to 5.5 V

CC

V

± 12 mA

± 8mA

-55 to 125 °C

3/10

74LCX162541

DC SPECIFICATIONS

Test Condition Value

Symbol Parameter

V

V

V

V

I

I

OZ

High Level Input

IH

Voltage
Low Level Input

IL

Voltage
High Level Output

OH

Voltage

Low Level Output

OL

Voltage

Input Leakage

I

I

Current
Power Off Leakage

off

Current
High Impedance

Output Leakage
Current

I

CC

∆I

Quiescent Supply
Current

ICCincr. per Input

CC

V

CC

(V)

2.7to3.6

2.7to3.6

2.7

3.0

2.7to3.6

2.7

3.0

2.7to3.6

0

2.7to3.6

2.7to3.6

2.7to3.6

-40to85°C -55to125°C

Min. Max. Min. Max.

2.0 2.0 V

0.8

IO=-100 µAVCC-0.2 VCC-0.2

=-8 mA

I

O

I

=-6 mA

O

=-12 mA

I

O

IO=100 µA

I

=8 mA

O

I

=6 mA

O

=12 mA

I

O

V

= 0 to 5.5V

I

or VO=5.5V

V

I

I=VIH

or V

V
VO= 0 to V

VI=VCCor GND

or VO= 3.6 to 5.5V

V

I

VIH=VCC-0.6V

IL

CC

2.0 2.0

2.4 2.4

2.0 2.0

0.2 0.2

0.6 0.6

0.55 0.55

0.8 0.8
± 5 ± 5 µA

10 10 µA

± 5 ± 5 µA

20 20

± 20 ± 20

500 500 µA

0.8

Unit

V

V

V

µA

DYNAMIC SWITCHING CHARA CTERISTICS

Test Condition Value

=25°C

Symbol Parameter

V

CC

(V)

V

OLP

V

OLV

1) Number of outputsdefined as "n".Measured with "n-1"outputs switching from HIGH to LOW or LOW to HIGH.The remaining output is
measured in the LOW state.

Dynamic Low Level Quiet
Output (note 1)

3.3

=50pF

C

L

V

=0V,VIH= 3.3V

IL

4/10

T

A

Min. Typ. Max.

0.8

-0.8

Unit

V

AC ELECTRICAL C HARACTERISTICS

74LCX162541

Test Condition Value

Symbol Parameter

V

CC

(V)

t

PLHtPHL

t

PZLtPZH

Propagation Delay
Time

Output Enable Time 2.7

2.7

3.0 to 3.6 1.5 4.4 1.5 5.1

3.0 to 3.6 1.5 5.9 1.5 6.8

t

PLZtPHZ

Output Disable Time 2.7

3.0 to 3.6 1.5 5.9 1.5 6.8

t

OSLH

t

OSHL

1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switch­ing in the same direction, either HIGH or LOW (t

2) Parameter guaranteed by design

Output To Output
Skew Time (note1,

2)

3.0 to 3.6 50 500 2.5 1.0 1.0 ns

OSLH

C

L

(pF)

50 500 2.5

50 500 2.5

50 500 2.5

=|t

PLHm-tPLHn

R

(Ω)

|, t

L

OSHL

t

s

(ns)

= t

=|t

-40 to 85 °C -55 to 125 °C

r

Min. Max. Min. Max.

1.5 5.6 1.5 6.5

1.5 6.3 1.5 7.2

1.5 6.3 1.5 7.2

PHLm-tPHLn

|)

Unit

ns

ns

ns

CAPACITIVE CHARACTERISTICS

Test Condition Value

=25°C

Symbol Parameter

V

CC

(V)

C

C

OUT

C

1) CPDis defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
circuit)

Input Capacitance

IN

Output Capacitance
Power Dissipation Capacitance

PD

(note 1)

3.3 fIN= 10MHz
V

= 0 or V

IN

CC

T

A

Min. Typ. Max.

4pF
10 pF
50

CC(opr)=CPDxVCCxfIN+ICC

Unit

pF

/16 (per

5/10

74LCX162541

TEST CIRCUIT

TEST SWITCH

t

PLH,tPHL

t

PZL,tPLZ

t

PZH,tPHZ

CL= 50 pF or equivalent (includes jig and probe capacitance)
RL=R1=500Ω or equivalent
R

T=ZOUT

of pulse generator (typically 50Ω)

Open

6V

GND

WAVEFORM 1 : PROPAGATION DEL AYS (f=1MHz; 50% duty cycle)

6/10

WAVEFORM 2 : OUTPUT ENABL E AND DISABLE TIME (f=1MHz; 50% duty cycle)

74LCX162541

7/10

74LCX162541

TSSOP48 MECHANICAL DATA

mm. inch

DIM.

MIN. TYP MAX. MIN. TYP. MAX.

A 1.2 0.047

A1 0.05 0.15 0.002 0.006

A2 0.9 0.035

b 0.17 0.27 0.0067 0.011

c 0.09 0.20 0.0035 0.0079

D 12.4 12.6 0.488 0.496

E 8.1 BSC 0.318 BSC

E1 6.0 6.2 0.236 0.244

e 0 .5 BSC 0.0197 BSC

K0˚ 8˚0˚ 8˚

L 0.50 0.75 0.020 0.030

A2

A

A1

b

e

D

K

c

E1

L

E

PIN 1 IDENTIFICATION

8/10

1

7065588C

74LCX162541

Tape & Reel TSSOP48 MECHANICAL DATA

mm. inch

DIM.

MIN. TYP MAX. MIN. TYP. MAX.

A 330 12.992
C 12.8 13.2 0.504 0.519
D 20.2 0.795
N 60 2.362

T 30.4 1.197
Ao 8.7 8.9 0.343 0.350
Bo 13.1 13.3 0.516 0.524
Ko 1.5 1.7 0.059 0.067
Po 3.9 4.1 0.153 0.161

P 11.9 12.1 0.468 0.476

9/10

74LCX162541

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consequences of use o f suc h inf ormat ion n or f or an y infr ingeme nt of paten ts or oth er ri gh ts of third part ies whic h may resul t f rom
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