SGS Thomson Microelectronics 74LCX16541TTR Datasheet
74LCX16541
LOW VOLTAGE CMO S 16-BIT BUS BUFFER (3-STATE)
WITH 5V TOLERANT INPUTS/OUTPUTS (NON INVERTED)
■ 5V TOLERANT INPUTS AND OUTPUTS
■ HIGH SPEED:
t
= 4.1 ns (MAX.) at VCC=5V
PD
■ LOW POWER DISSIPATION:
I
=2µA (MAX.) at TA=25°C
CC
■ HIGH NOISE IMMUNITY:
V
NIH=VNIL
■ POWER DOWN PROTECTION ON INPUTS
= 28% VCC(MIN.)
AND OUPUTS
■ SYMMETRICAL OUTPUT IMPEDANCE:
|I
|=IOL=24mA(MIN)
OH
■ BALANCED PROPAGATION DELAYS:
t
≅ t
PLH
PHL
■ OPERATING VOLTAGE RANGE:
V
(OPR) = 2V to 3.6V (1.5V Data Retention)
CC
■ PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 16541
■ IMPROVED LATCH-UP IMMUNITY
■ ESD P ERFORMANCE :
HBM>2000V(MIL ST D 8 83 method 3015);
MM>200V
ORDER CODES
PACKAGE TUBE T & R
TSSOP 74LCX16541TTR
PIN CO NNECTION
TSSOP
DESCRIPTION
The 74LCX16541 is an advanced high-speed
CMOS 16-BIT BUS BUFFER (3-STATE) fabricated with sub-micron silicon gate and double-layer
metal wiring C
2
MOS tecnology.
This is com pos ed 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 out puts are in the high
impedence state. This device is designed to be
usedwith 3 state memoryaddressdriveres,etc.
It hase same speed performance at 3.3V than 5V
AC/ACT family, combined with a lower power consumption.
All inputs and outputs are equipped with protection circuits against s tatic discharge, giving them
2KV ESD immunity and transient excess vo ltage.
1/9February 2003
74LCX16541
INPUT AND OUT PUT 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
2/9
74LCX16541
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
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
1) Io absolute maximum rating must be observed
2)Vo < GND
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Value Unit
V
V
V
V
T
I
OH,IOL
I
OH,IOL
dt/dv
Supply Voltage
CC
DC Input Voltage
I
DC Output Voltage
O
DC Output Voltage (High or Low State) (note 1)
O
DC Input Diode Current
IK
DC Output Diode Current (note 2)
DC Output Current
O
DC VCCor Ground Current
GND
Storage Temperature
Lead Temperature (10 sec)
L
Supply Voltage (note 1)
CC
Input Voltage
I
Output Voltage (OFF State)
O
Output Voltage (High or Low State)
O
Operating Temperature
op
High or Low Level Output Current (Vcc = 3.0 to 3.6V)
High or Low Level Output Current (Vcc = 2.7V)
Input Rise and Fall Time (note 2) 0 to 10
-0.5 to +7.0 V
-0.5 to +7.0 V
-0.5 to +7.0 V
-0.5 to Vcc+0.5 V
−50 mA
− 50 mA
+ 50 mA
± 100 mA
-65 to +150 °C
300 °C
2 to 3.6 V
0 to 5.5 V
0 to 5.5 V
0 to Vcc V
-55 to 125 °C
± 24 mA
± 12 mA
ns/V
1) Truth Table guaranteed: 1.5V to 3.6V
from0.8V to 2V at VCC=3.0V
2) V
IN
3/9
Loading...