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TC74LCX244F(EL,K,F

P1-P3P4-P6P7-P9P10-P11
TC74LCX244F/FT/FK
2014-03-01
1
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74LCX244F, TC74LCX244FT, TC74LCX244FK
Low-Voltage Octal Bus Buffer with 5-V Tolerant Inputs and Outputs
The TC74LCX244 is a high-performance CMOS octal bus
buffer. Designed for use in 3.3-V systems, it achieves high-speed
operation while maintaining the CMOS low power dissipation.
The device is designed for low-voltage (3.3 V) V
CC
applications,
but it could be used to interface to 5 V supply environment for
both inputs and outputs.
The 74LCX244F/FT is a non-inverting 3-state buffer having
two active-low output enables. This device is designed to be used
with 3-state memory address drivers, etc.
All inputs are equipped with protection circuits against static
discharge.
Features
• Low-voltage operation: V
CC
= 1.65 to 3.6 V
• High-speed operation: t
pd
= 6.5 ns (max) (V
CC
= 3.0 to 3.6 V)
• Ouput current: |I
OH
|/I
OL
= 24 mA (min) (V
CC
= 3.0 V)
• Latch-up performance: ≥ ±500 mA
• Available in JEITA SOP, TSSOP and VSSOP (US)
• Power-down protection provided on all inputs and outputs
• Pin and function compatible with the 74 series
(74AC/VHC/HC/F/ALS/LS etc.) 244 type
Weight
SOP20-P-300-1.27A : 0.22 g (typ.)
TSSOP20-P-0044-0.65A : 0.08 g (typ.)
VSSOP20-P-0030-0.50 : 0.03 g (typ.)
Note: The Electrical Characteristics of V
CC
=1.8±0.15V is only applicable for products which manufactured
from January 2009 onward.
TC74LCX244F
TC74LCX244FT
TC74LCX244FK
Start of commercial production
1994-03
TC74LCX244F/FT/FK
2014-03-01
2
Pin Assignment
(top view)
IEC Logic Symbol
Truth Table
Inputs
OE An
Outputs
L L L
L H H
H X Z
X: Don’t care
Z: High impedance
V
CC
20
OE2
1Y1
2A4
1Y2
2A3
19
18
17
16
15
14
OE1
1
2
3
4
5
6
7
1A1
2Y4
1A2
2Y3
1A3
2Y2
1Y3
8
9
10
1A4
2Y1
GND
13
12
11
2A2
1Y4
2A1
1
2
4
6
8
19
11
13
15
17
18
16
14
12
EN
EN
9
7
5
3
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
OE1
OE2
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
TC74LCX244F/FT/FK
2014-03-01
3
Absolute Maximum Ratings (Note 1)
Characteristics Symbol Rating Unit
Power supply voltage V
CC
−0.5 to 7.0 V
DC input voltage V
IN
−0.5 to 7.0 V
−0.5 to 7.0 (Note 2)
DC output voltage V
OUT
−0.5 to V
CC
+ 0.5
(Note 3)
V
Input diode current I
IK
−50 mA
Output diode current I
OK
±50 (Note 4) mA
DC output current I
OUT
±50 mA
Power dissipation P
D
180 mW
DC V
CC
/ground current I
CC
/I
GND
±100 mA
Storage temperature T
stg
−65 to 150 °C
Note 1: Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or
even destruction.
Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the
significant change in temperature, etc.) may cause this product to decrease in the reliability significantly
even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute
maximum ratings and the operating ranges.
Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook
(“Handling Precautions”/“Derating Concept and Methods”) and individual reliability data (i.e. reliability test
report and estimated failure rate, etc).
Note 2: Output in OFF state
Note 3: High or low state. I
OUT
absolute maximum rating must be observed.
Note 4: V
OUT
< GND, V
OUT
> V
CC
Operating Ranges (Note 1)
Characteristics Symbol Rating Unit
1.65 to 3.6
Power supply voltage V
CC
1.5 to 3.6 (Note 2)
V
Input voltage V
IN
0 to 5.5 V
0 to 5.5 (Note 3)
Output voltage V
OUT
0 to V
CC
(Note 4)
V
±24 (Note 5)
Output current I
OH
/I
OL
±12 (Note 6)
mA
Operating temperature T
opr
−40 to 85 °C
Input rise and fall time dt/dv 0 to 10 (Note 7) ns/V
Note 1: The operating ranges must be maintained to ensure the normal operation of the device.
Unused inputs must be tied to either V
CC
or GND.
Note 2: Data retention only
Note 3: Output in OFF state
Note 4: High or low state
Note 5: V
CC
= 3.0 to 3.6 V
Note 6: V
CC
= 2.7 to 3.0 V
Note 7: V
IN
= 0.8 to 2.0 V, V
CC
= 3.0 V
P1-P3P4-P6P7-P9P10-P11

TC74LCX244F(EL,K,F

Mfr. #:
Buy TC74LCX244F(EL,K,F
Manufacturer:
Toshiba
Description:
Buffers & Line Drivers CMOS Logic IC 6.5ns 24mA 1.65 to 3.6V
Lifecycle:
New from this manufacturer.
Delivery:
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