SGS Thomson Microelectronics 74AC16541TTR Datasheet

WITH 3-STATE OUTPUTS (NON INVERTED)

■ HIGH SPEED:

t

= 4.5 ns (TYP.) at VCC=5V

PD

■ LOW POWER DISSIPATION:

I

=8µA (MAX.) at TA=25°C

CC

■ HIGH NOISE IMMUNITY:

V

NIH=VNIL

■ POWER DOWN PROTECTION ON INPUTS

■ SYMMETRICAL OUTPUT IMPEDANCE:

|I

|=IOL=24mA(MIN)

OH

■ BALANCED PROPAGATION DELAYS:

t

≅ t

PLH

■ OPERATING VOLTAGE RANGE:

V

(OPR) = 2V to 6V

CC

■ PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 16541

■ IMPROVED LATCH-UP IMMUNITY

DESCRIPTION

The 74AC16541 is an advanced high-speed
CMOS 16-BIT BUS BUFFER (3-STATE) fabricat­ed with sub-micron silicon gate and double-layer
metal wiring C
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 either
nG1

and nG2 are high, all outputs are in the high

impedence state.

= 28% VCC(MIN.)

PHL

2

MOS tecnology.

74AC16541

16-BIT BUS BUFFER

TSSOP

ORDER CODES

PACKAGE TUBE T & R

TSSOP 74AC16541TTR

PIN CO NNECTION

1/9February 2003

74AC16541

INPUT AND OUTP UT 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

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74AC16541

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

V

V

I

I

OK

I

or I

I

CC

T

stg

T

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

RECOMMENDED OPERATING CONDITIONS

Symbol Parameter Value Unit

V

V

V

T

dt/dv Input Rise and Fall Time (note 1) V

1) VINfrom30% to 70%of V

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 VCCor Ground Current

GND

Storage Temperature
Lead Temperature (10 sec)

L

Supply Voltage

CC

Input Voltage 0 to V

I

Output Voltage 0 to V

O

Operating Temperature

op

= 3.0, 4.5 or 5.5

CC

CC

-0.5 to +7.0 V

-0.5 to +7.0 V

± 20 mA
± 50 mA
± 50 mA

± 400 mA

-65 to +150 °C
300 °C

2to6 V

CC
CC

-55 to 125 °C
0to8

ns/V

V

V
V

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