74LVC646ADB-T NXP Semiconductors, 74LVC646ADB-T Datasheet - Page 6

• Manufacturer Part Number: 74LVC646ADB-T
• Description: Bus Transceivers OCTAL BUS INTERFACE TRANS/REG
• Manufacturer: NXP Semiconductors

Specifications of 74LVC646ADB-T

• Product Category: Bus Transceivers
• Rohs: yes
• Package / Case: SOT-340
• Mounting Style: SMD/SMT
• Factory Pack Quantity: 1000
• Part # Aliases: 74LVC646ADB,118

NXP Semiconductors
6. Functional description
Table 3.
[1]
[2]
7. Limiting values
Table 4.
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
[1]
[2]
[3]
74LVC646A
Product data sheet
Input
OE
X
X
H
H
L
L
L
L
Symbol
V
I
V
I
V
I
I
I
T
P
IK
OK
O
CC
GND
stg
CC
I
O
tot
H = HIGH voltage level
L = LOW voltage level
X = don’t care
 = LOW to HIGH level transition
The data output functions are enabled or disabled by various signals at the OE and DIR inputs. Data input functions are always enabled,
i.e. data at the bus inputs are stored on every LOW to HIGH transition on the clock inputs.
The minimum input voltage ratings may be exceeded if the input current ratings are observed.
The output voltage ratings may be exceeded if the output current ratings are observed.
For SO24 packages: above 70 C the value of P
For (T)SSOP24 packages: above 60 C the value of P
DIR
X
X
X
X
L
L
H
H
Function table
Limiting values
Parameter
supply voltage
input clamping current
input voltage
output clamping current
output voltage
output current
supply current
ground current
storage temperature
total power dissipation
CPAB

X

H or L
X
X
X
H or L
[1]
CPBA
X


H or L
X
H or L
X
X
SAB
X
X
X
X
X
X
L
H
All information provided in this document is subject to legal disclaimers.
tot
SBA
X
X
X
X
L
H
X
X
derates linearly with 8 mW/K.
Rev. 5 — 28 March 2013
Conditions
V
V
output HIGH or LOW state
output 3-state
V
T
tot
amb
I
O
O
derates linearly with 5.5 mW/K.
< 0 V
> V
= 0 V to V
Data I/O
A0 to A7
input
unspecified
input
input
output
output
input
input
= 40 C to +125 C
CC
or V
CC
O
[2]
< 0 V
B0 to B7
unspecified
input
input
input
input
input
output
output
Octal bus transceiver/register; 3-state
[2]
[1]
[2]
[2]
[3]
Function
store A and B unspecified
store B and A unspecified
store A and B data
hold storage; isolation
real-time B data to A bus
stored B data to A bus
real-time A data to B bus
stored A data to B bus
Min
0.5
50
0.5
-
0.5
0.5
-
-
100
65
-
74LVC646A
Max
+6.5
-
+6.5
50
V
+6.5
50
100
-
+150
500
© NXP B.V. 2013. All rights reserved.
CC
+ 0.5
Unit
V
mA
V
mA
V
V
mA
mA
mA
C
mW
6 of 23