SGS Thomson Microelectronics 74ALVCH16240T Datasheet
LOW VOLTAGE CMOS 16-BIT BUS BUFFER (3-STATE)
WITH 3.6V TOLERANT INPUTS AND OUTPUTS
■ 3.6V TOLERANT INPUTS AND OUTPUTS
■ HIGH SPEED :
t
= 3.9 ns (MAX.) at VCC=3.0to3.6V
PD
t
= 5.3 ns (MAX.) at VCC=2.3to2.7V
PD
t
= 7.5 ns (MAX.) at VCC=1.65V
PD
■ POWER DOWN PROTECTION ON INPUTS
AND OUTPUTS
■ SYMMETRICAL OUTPUT IMPEDANCE:
|=IOL= 24mA (MIN) at VCC=3.0V
|I
OH
|I
|=IOL= 18mA (MIN) at VCC=2.3V
OH
|I
|=IOL=4mA(MIN)atVCC= 1.65V
OH
■ OPERATING VOLTAGE RAN GE:
V
(OPR) = 1.65V to 3.6V
CC
■ BUS HOLD PROVIDED ON DATA INPUTS
■ PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 16240
■ LATCH-UP PERFORMANCE EXCEEDS
300mA (JESD 17)
■ ESD PERFORMANCE:
HBM > 2000V (MIL STD 883 method 3015);
MM > 200V
74ALVCH16240
TSSOP
ORDER CODES
PACKAGE TUBE T & R
TSSOP 74ALVCH16240TTR
PIN CO NNE CTION
DESCRIPTION
The 74ALVCH16240 is a low voltage CMOS 16
BIT BUS BUFFER (INVERTED) fabricated with
sub-micron silicon gate and five-layer metal wiring
2
C
MOS technology. It is ideal for low power and
very high speed 1.65 to 3.6V applications; it can
be interfaced to 3.6V s ignal environment for both
inputs and outputs.
Any nG
BUFFERS. Output Enable input (nG
output con trol governs four BUS
) tied together
gives full 16-bit operation.
When nG
nG
is LO W, the outputs are enabled. When
is HIGH, the output are in high impedance
state.
Active bus-hold circuitry is provided to hold
unused or floating data inputs at a valid logic level.
This device is designed to be used with 3 state
memory address drivers, etc.
All inputs and outputs are equipped with
protection circuits aga inst static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
1/10February 2003
74ALVCH16240
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No SYMBOL NAME AND FUNCTION
11G
2, 3, 5, 6 1Y1
8, 9, 11, 12 2Y1
13, 14, 16, 17 3Y1
19, 20, 22, 23 4Y1
24 4G
25 3G
30, 29, 27, 26 4A1 to 4A4 Data Outputs
36, 35, 33, 32 3A1 to 3A4 Data Outputs
41, 40, 38, 37 2A1 to 2A4 Data Outputs
47, 46, 44, 43 1A1 to 1A4 Data Outputs
48 2G
4, 10, 15, 21,
28, 34, 39, 45
7, 18, 31, 42
to 1Y4 Data Outputs
to 2Y4 Data Outputs
to 3Y4 Data Outputs
to 4Y4 Data Outputs
GND Ground (0V)
V
CC
Output Enable Input
Output Enable Input
Output Enable Input
Output Enable Input
Positive Supply Voltage
TRUTH TABLE
INPUTS OUTPUT
G
LLH
LHL
HXZ
X : Don‘t Care
Z : High Impedance
An Yn
IEC LOGIC SYMBOLS
2/10
74ALVCH16240
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
V
V
V
I
I
OK
I
or I
I
CC
P
T
T
Absolute Maximum Ratings are those values beyond which damage tothe device may occur. Functional operation under these conditions is
not implied
1) I
absolute maximum rating must be observed
O
2) V
<GND,VO>V
O
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Value Unit
V
V
V
V
I
OH,IOL
I
OH,IOL
I
OH,IOL
T
dt/dv Input Rise and Fall Time (note 1) 0 to 10 ns/V
1) VINfrom0.8V to 2Vat VCC=3.0V
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 VCCor Ground Current per Supply Pin
GND
Power Dissipation
D
Storage Temperature
stg
Lead Temperature (10 sec)
L
CC
Supply Voltage
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= 2.3 to 2.7V)
High or Low Level Output Current (VCC= 1.8V)
Operating Temperature
op
-0.5 to +4.6 V
-0.5 to +4.6 V
-0.5 to +4.6 V
V
-50 mA
-50 mA
± 50 mA
± 100 mA
400 mW
-65 to +150 °C
300 °C
1.65 to 3.6 V
-0.3 to 3.6 V
0 to 3.6 V
CC
V
± 24 mA
± 12 mA
± 6mA
-55 to 125 °C
3/10
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