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TC74VCX245FTEL

P1-P3P4-P6P7-P9P10-P12P13-P13
TC74VCX245FT/FK/FTG
2014-03-01
1
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74VCX245FT, TC74VCX245FK, TC74VCX245FTG
Low-Voltage Octal Bus Transceiver with 3.6 V Tolerant Inputs and Outputs
The TC74VCX245 is a high performance CMOS octal bus
transceiver which is guaranteed to operate from 1.2-V to 3.6-V.
Designed for use in 1.5V, 1.8V, 2.5V or 3.3 V systems, it achieves
high speed operation while maintaining the CMOS low power
dissipation.
It is also designed with over voltage tolerant inputs and outputs up
to 3.6 V.
The direction of data transmission is determined by the level of the
DIR inputs. The
OE
inputs can be used to disable the device so
that the busses are effectively isolated.
All inputs are equipped with protection circuits against static
discharge.
Features (Note 1) (Note 2) (Note 3)
• Low voltage operation: V
CC
= 1.2 to 3.6 V
• High speed operation: t
pd
= 3.5 ns (max) (V
CC
= 3.0 to 3.6 V)
t
pd
= 4.2 ns (max) (V
CC
= 2.3 to 2.7 V)
t
pd
= 8.4 ns (max) (V
CC
= 1.65 to 1.95 V)
t
pd
= 16.8 ns (max) (V
CC
= 1.4 to 1.6 V)
t
pd
= 42.0 ns (max) (V
CC
= 1.2 V)
• 3.6 V tolerant inputs and outputs.
• Output current: I
OH
/I
OL
= ±24 mA (min) (V
CC
= 3.0 V)
I
OH
/I
OL
= ±18 mA (min) (V
CC
= 2.3 V)
I
OH
/I
OL
= ±6 mA (min) (V
CC
= 1.65 V)
I
OH
/I
OL
= ±2 mA (min) (V
CC
= 1.4 V)
• Latch-up performance: −300 mA
• ESD performance: Machine model ≥ ±200 V
Human body model ≥ ±2000 V
• Package: TSSOP
VSSOP (US)
VQON
• Bidirectional interface between 2.5 V and 3.3 V signals. (Note 1)
• Power down protection is provided on all inputs and outputs. (Note 2)
Note 1: Do not apply a signal to any bus terminal when it is in the output mode. Damage may result.
Note 2: All floating (high impedance) bus terminal must have their input level fixed by means of pull up or pull down
resistors.
Note 3: When mounting VQON package, the type of recommended flux is RA or RMA.
TC74VCX245FT
TC74VCX245FK
TC74VCX245FTG
VQON20-0404-0.50
Weight
TSSOP20-P-0044-0.65A : 0.08 g (typ.)
VSSOP20-P-0030-0.50 : 0.03 g (typ.)
VQON20-P-0404-0.50 : 0.0145g (typ.)
Start of commercial production
1998-06
TC74VCX245FT/FK/FTG
2014-03-01
2
Pin Assignment
(top view)
IEC Logic Symbol
Truth Table
Inputs Function
OE DIR
Outputs
A-Bus B-Bus
L L A = B Output Input
L H B = A Input Output
H X Z Z
X: Don’t care
Z: High impedance
19
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
DIR
A1
A2
A3
A4
A5
A6
A7
A8
B1
B2
B3
B4
B5
B6
B7
B8
G3
3 EN 1 [BA]
3 EN 2 [AB]
1
2
OE
V
CC
20
OE
B1
B2
B3
B4
19
18
17
16
15
14
DIR 1
2
3
4
5
6
7
A1
A2
A3
A4
A5
A6
B5
8
9
10
A7
A8
GND
13
12
11
B6
B7
B8
FT(TSSOP20-P-0044-0.65)
FK(VSSOP20-P-0030-0.50)
FTG(VQON20-P-0404-0.50)
1
2
3
5
A2
A3
A4
A5
A6
6 7 8 9 10
15
14
13
12
11
A7 A8 GND B8 B7
B2
B3
B4
B5
B6
20 19
18
17 16
A1
VCC
B1 OE DIR
4
TC74VCX245FT/FK/FTG
2014-03-01
3
Absolute Maximum Ratings (Note 1)
Characteristics Symbol Rating Unit
Power supply voltage V
CC
−0.5 to 4.6 V
DC input voltage (DIR, OE )
V
IN
−0.5 to 4.6 V
−0.5 to 4.6 (Note 2)
DC bus I/O voltage V
I/O
−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: 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
Supply voltage V
CC
1.2 to 3.6
V
Input voltage (DIR,
OE
)
V
IN
−0.3 to 3.6 V
0 to 3.6 (Note 2)
Bus I/O voltage V
I/O
0 to V
CC
(Note 3)
V
±24 (Note 4)
±18 (Note 5)
±6 (Note 6)
Output current I
OH
/I
OL
±2 (Note 7)
mA
Operating temperature
T
opr
−40 to 85 °C
Input rise and fall time
dt/dv 0 to 10 (Note 8) ns/V
Note 1: The operating ranges must be maintained to ensure the normal operation of the device. Unused inputs and
bus inputs must be tied to either V
CC
or GND. Please connect both bus inputs and the bus outputs with V
CC
or GND when the I/O of the bus terminal changes by the function. In this case, please note that the output is
not short-circuited.
Note 2: Off-state
Note 3: High or low state
Note 4: V
CC
= 3.0 to 3.6 V
Note 5: V
CC
= 2.3 to 2.7 V
Note 6: V
CC
= 1.65 to 1.95 V
Note 7: V
CC
= 1.4 to 1.6 V
Note 8: V
IN
= 0.8 to 2.0 V, V
CC
= 3.0 V
P1-P3P4-P6P7-P9P10-P12P13-P13

TC74VCX245FTEL

Mfr. #:
Buy TC74VCX245FTEL
Manufacturer:
Toshiba
Description:
Bus Transceivers CMOS Logic IC 3.5ns 24mA 1.2 to 3.6V
Lifecycle:
New from this manufacturer.
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