74LVT646DB,118 NXP Semiconductors, 74LVT646DB,118 Datasheet - Page 4

• Manufacturer Part Number: 74LVT646DB,118
• Description: IC TRANSCVR 8BIT N-INV 24SSOP
• Manufacturer: NXP Semiconductors
• Series: 74LVTr

Specifications of 74LVT646DB,118

• Logic Type: Transceiver, Non-Inverting
• Number Of Elements: 1
• Number Of Bits Per Element: 8
• Current - Output High, Low: 32mA, 64mA
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 74LVT646DB-T; 74LVT646DB-T; 935167210118

Philips Semiconductors
FUNCTION TABLE
H = High voltage level
L = Low voltage level
X = Don’t care
*
1998 Feb 19
3.3V Octal bus transceiver/register (3-State)
= Low-to-High clock transition
OE
REAL TIME BUS TRANSFER
H
H
X
X
L
L
L
L
OE
L
The data output function may be enabled or disabled by various signals at the OE input. Data input functions are always enabled, i.e.,
data at the bus pins will be stored on every Low-to-High transition of the clock.
A
BUS B TO BUS A
DIR CPAB CPBA SAB SBA
L
DIR
X
X
X
X
X
H
H
L
L
X
CPAB
X
H or L
H or L
INPUTS
X
X
X
X
B
L
CPBA
H or L
H or L
REAL TIME BUS TRANSFER
OE
X
X
X
X
L
A
BUS A TO BUS B
DIR CPAB CPBA SAB SBA
H
SAB
X
X
X
X
X
X
H
L
X
X
SBA
X
X
X
X
H
X
X
L
L
B
Unspecified
X
output*
Output
Input
Input
Input
An
4
DATA I/O
OE
L
L
H
A
A, B, OR A AND B
STORAGE FROM
DIR CPAB CPBA SAB SBA
H
L
X
Unspecified
output*
Output
Input
Input
Input
Bn
X
X
X
X
X
Store A, B unspecified
Store B, A unspecified
Store A and B data
Isolation, hold storage
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
B
X
X
X
OPERATING MODE
OPERATING MODE
TRANSFER STORED DATA
OE
L
L
A
DIR CPAB CPBA SAB SBA
H
L
TO A OR B
H or L
X
74LVT646
Product specification
H or L
X
X
H
SV00049
B
H
X