74LVC244 Philips Semiconductors, 74LVC244 Datasheet - Page 2

• Manufacturer Part Number: 74LVC244
• Description: Octal buffer/line driver with 5-volt tolerant inputs/outputs 3-Statetitle
• Manufacturer: Philips Semiconductors

1. C
2. The condition is V
Philips Semiconductors
FEATURES
QUICK REFERENCE DATA
NOTE:
ORDERING INFORMATION
t
t
C
C
20-Pin Plastic Shrink Small Outline (SO)
20-Pin Plastic Shrink Small Outline (SSOP) Type II
20-Pin Plastic Thin Shrink Small Outline (TSSOP) Type I
20-Pin Plastic Shrink Small Outline (SO)
20-Pin Plastic Shrink Small Outline (SSOP) Type II
20-Pin Plastic Thin Shrink Small Outline (TSSOP) Type I
1998 May 20
PHL
5-volt tolerant inputs/outputs, for interfacing with 5-volt logic
Supply voltage range of 2.7V to 3.6V
Complies with JEDEC standard no. 8-1A
CMOS low power consumption
Direct interface with TTL levels
High impedance when V
Bushold on all data inputs (74LVCH244A only)
Octal buffer/line driver with 5-volt
tolerant inputs/outputs (3-State)
I
PD
P
f
f
S (C
i
o
PD
D
= input frequency in MHz; C
/t
/t
= output frequency in MHz; V
PLH
= C
SYMBOL
L
is used to determine the dynamic power dissipation (P
x V
PD
CC
x V
2
CC
x f
2
o
) = sum of outputs.
x f
I
= GND to V
i
PACKAGES
+ S (C
Propagation delay
1A to 1Y
1A
2A
Input capacitance
Power dissipation capacitance per
buffer
CC
n
n
= 0V
to 1Y
to 2Y
L
x V
L
CC
= output load capacity in pF;
CC
n;
n
CC
= supply voltage in V;
2
PARAMETER
x f
o
) where:
TEMPERATURE
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
–40 C to +85 C
D
in mW):
RANGE
C
V
V
Notes 1 and 2
CC
CC
L
2
= 50pF
= 3 3V
= 3.3V
DESCRIPTION
The 74LVC244A/74LVCH244A is a high-performance, low-power,
low-voltage, Si-gate CMOS device, superior to most advanced
CMOS compatible TTL families.
Inputs can be driven from either 3.3V or 5V devices. In 3-State
operation, outputs can handle 5V. These features allow the use of
these devices as translators in a mixed 3.3V/5V environment.
The 74LVC244A/74LVCH244A is an octal non-inverting buffer/line
driver with 3-State outputs. The 3-State outputs are controlled by the
output enable inputs 1OE and 2OE. A HIGH on nOE causes the
outputs to assume a high impedance OFF-state. Schmitt-trigger
action at all inputs makes the circuit highly tolerant for slower input
rise and fall times.
The ’244’ is functionally identical to the ’240’, but the ’240’ has
non-inverting outputs.
CONDITIONS
NORTH AMERICA
74LVCH244A PW
74LVCH244A DB
74LVC244A PW
74LVCH244A D
74LVC244A DB
74LVC244A D
OUTSIDE
NORTH AMERICA
LVCH244APW DH
7LVC244APW DH
74LVCH244A DB
74LVC244A DB
74LVCH244A D
74LVC244A D
TYPICAL
22.6
3 5
3.5
4.4
74LVCH244A
74LVC244A
Product specification
853-1876 19419
PKG. DWG. #
SOT163-1
SOT339-1
SOT360-1
SOT163-1
SOT339-1
SOT360-1
UNIT
pF
pF
ns
ns