TC74VCX244FK [TOSHIBA]
Low-Voltage Octal Bus Buffer with 3.6 V Tolerant Inputs and Outputs; 低电压八路总线缓冲器，具有3.6 V容限输入和输出
| 型号： | TC74VCX244FK |
| 厂家： | 
TOSHIBA |
| 描述： | Low-Voltage Octal Bus Buffer with 3.6 V Tolerant Inputs and Outputs |
| 文件： | 总12页 (文件大小：263K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TC74VCX244FT/FK
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74VCX244FT, TC74VCX244FK
Low-Voltage Octal Bus Buffer with 3.6 V Tolerant Inputs and Outputs
The TC74VCX244 is a high performance CMOS octal bus
buffer which is guaranteed to operate from 1.2-V to 3.6-V.
TC74VCX244FT
Designed for use in 1.5V, 1.8 V, 2.5 V 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.
This device is non-inverting 3-state buffer having four
active-low output enables. When the OE input is high, the
outputs are in a high impedance state. This device is designed to
be used with 3-state memory address drivers, etc.
All inputs are equipped with protection circuits against static
TC74VCX244FK
discharge.
Features
•
•
Low voltage operation: V
= 1.2~3.6 V
CC
High speed operation: t = 3.5 ns (max) (V
= 3.0~3.6 V)
= 2.3~2.7 V)
= 1.65~1.95 V )
pd
CC
CC
CC
t
= 4.2 ns (max) (V
= 8.4 ns (max) (V
pd
pd
t
Weight
TSSOP20-P-0044-0.65A
VSSOP20-P-0030-0.50
: 0.08 g (typ.)
: 0.03 g (typ.)
t
t
= 16.8 ns (max) (V
= 42.0 ns (max) (V
= 1.4~1.6 V)
= 1.2 V)
pd
CC
pd
CC
•
•
3.6 V tolerant inputs and outputs.
Output current: I /I
= ±24 mA (min) (V
= ±18 mA (min) (V
= 3.0 V)
= 2.3 V)
OH OL
CC
I
I
I
/I
OH OL
CC
/I
= ±6 mA (min) (V
= 1.65 V)
= 1.4 V)
OH OL
CC
/I
= ±2mA (min) (V
OH OL
CC
•
•
Latch-up performance: −300 mA
ESD performance:Machine model ≥ ±200 V
Human body model ≥ ±2000 V
Package: TSSOP and VSSOP (US)
•
•
•
Power down protection is provided on all inputs and outputs.
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TC74VCX244FT/FK
Pin Assignment (top view)
IEC Logic Level
1
EN
1OE
1OE
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
1
2
3
4
5
6
7
8
9
20
V
CC
2
4
6
8
18
1A1
1A2
1A3
1A4
1Y1
16
19 2OE
18 1Y1
17 2A4
16 1Y2
15 2A3
14 1Y3
13 2A2
12 1Y4
11 2A1
1Y2
14
1Y3
12
1Y4
19
2OE
EN
11
13
15
17
9
2A1
2A2
2A3
2A4
2Y1
7
2Y2
5
2Y3
3
2Y4
GND 10
(top view)
Truth Table
Inputs
Outputs
OE
L
A
n
L
L
H
Z
L
H
X
H
X: Don’t care
Z: High impedance
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2007-10-19
TC74VCX244FT/FK
Absolute Maximum Ratings (Note 1)
Characteristics
Power supply voltage
Symbol
Rating
Unit
V
−0.5~4.6
−0.5~4.6
−0.5~4.6
V
V
CC
DC input voltage
V
IN
(Note 2)
DC output voltage
V
V
OUT
−0.5~V
CC
+ 0.5 (Note 3)
Input diode current
Output diode current
DC output current
Power dissipation
I
−50
±50
mA
mA
mA
mW
mA
°C
IK
I
(Note 4)
OK
I
±50
180
OUT
P
D
DC V /ground current
CC
I
/I
±100
CC GND
Storage temperature
T
stg
−65~150
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
Input voltage
V
1.2~3.6
V
V
CC
V
−0.3~3.6
IN
0~3.6 (Note 2)
Output voltage
V
V
OUT
0~V
CC
(Note 3)
(Note 4)
(Note 5)
(Note 6)
(Note 7)
±24
±18
±6
Output current
I
/I
mA
OH OL
±2
Operating temperature
Input rise and fall time
T
−40~85
°C
opr
dt/dv
0~10 (Note 8)
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 VCC or GND.
Note 2: Off-state
Note 3: High or low state
Note 4: V
Note 5: V
Note 6: V
Note 7: V
= 3.0~3.6 V
= 2.3~2.7 V
= 1.65~1.95 V
= 1.4~1.6 V
CC
CC
CC
CC
Note 8: V = 0.8~2.0 V, V
IN CC
= 3.0 V
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2007-10-19
TC74VCX244FT/FK
Electrical Characteristics
DC Characteristics (Ta = −40~85°C, 2.7 V < VCC 3.6 V)
<
Characteristics
Symbol
Test Condition
Min
Max
Unit
V
V
(V)
CC
High level
V
IH
⎯
⎯
2.7~3.6
2.7~3.6
2.0
⎯
Input voltage
Low level
High level
V
IL
⎯
0.8
V
CC
I
= −100 μA
2.7~3.6
⎯
OH
− 0.2
2.2
2.4
2.2
⎯
I
I
I
I
I
I
I
= −12 mA
= −18 mA
= −24 mA
= 100 μA
= 12 mA
= 18 mA
= 24 mA
2.7
3.0
⎯
⎯
OH
OH
OH
OL
OL
OL
OL
V
OH
V
V
= V or V
IH
IN
IL
3.0
⎯
Output voltage
V
2.7~3.6
2.7
0.2
0.4
0.4
0.55
±5.0
⎯
Low level
V
OL
= V or V
IN
IH
IL
3.0
⎯
3.0
⎯
Input leakage current
I
V
V
V
V
V
V
V
= 0~3.6 V
2.7~3.6
⎯
μA
μA
μA
IN
IN
= V or V
IH
IN
IL
3-state output off-state current
Power off leakage current
I
2.7~3.6
⎯
±10.0
OZ
= 0~3.6 V
OUT
I
, V
IN OUT
= 0~3.6 V
0
⎯
⎯
⎯
⎯
10.0
20.0
±20.0
750
OFF
= V
or GND
2.7~3.6
2.7~3.6
2.7~3.6
IN
CC
I
CC
<
<
Quiescent supply current
μA
(V , V
)
3.6 V
CC
IN OUT
ΔI
CC
= V − 0.6 V (per input)
CC
IH
<
<
2.7 V)
DC Characteristics (Ta = −40~85°C, 2.3 V
V
CC
Characteristics
Symbol
Test Condition
Min
Max
Unit
V
V
(V)
CC
High level
V
IH
⎯
⎯
2.3~2.7
2.3~2.7
1.6
⎯
Input voltage
Low level
High level
V
IL
⎯
0.7
V
CC
I
= −100 μA
2.3~2.7
⎯
OH
− 0.2
2.0
1.8
1.7
⎯
I
I
I
I
I
I
= −6 mA
= −12 mA
= −18 mA
= 100 μA
= 12 mA
= 18 mA
2.3
2.3
⎯
⎯
OH
OH
OH
OL
OL
OL
V
OH
V
V
= V or V
IN
IH
IL
Output voltage
V
2.3
⎯
2.3~2.7
2.3
0.2
0.4
0.6
±5.0
Low level
V
OL
= V or V
⎯
IN
IH
IL
2.3
⎯
Input leakage current
V
V
V
V
V
V
= 0~3.6 V
2.3~2.7
⎯
μA
μA
μA
μA
IN
= V or V
IH
IN
IL
3-state output off-state current
Power off leakage current
Quiescent supply current
I
2.3~2.7
⎯
±10.0
OZ
= 0~3.6 V
OUT
I
, V
IN OUT
= 0~3.6 V
0
⎯
⎯
⎯
10.0
20.0
OFF
= V
or GND
2.3~2.7
2.3~2.7
IN
CC
I
CC
<
<
3.6 V
(V , V
)
IN OUT
±20.0
CC
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2007-10-19
TC74VCX244FT/FK
<
DC Characteristics (Ta = −40~85°C, 1.65 V
V
CC
< 2.3 V)
Characteristics
Symbol
Test Condition
Min
Max
Unit
V
V
(V)
CC
0.65 ×
High level
V
IH
⎯
⎯
1.65~2.3
1.65~2.3
1.65~2.3
⎯
V
CC
Input voltage
0.2 ×
Low level
High level
V
IL
⎯
V
CC
V
CC
I
= −100 μA
⎯
OH
− 0.2
V
OH
V
V
= V or V
IH
IN
IL
I
I
I
= −6 mA
= 100 μA
= 6 mA
1.65
1.65~2.3
1.65
1.25
⎯
⎯
0.2
OH
OL
OL
Output voltage
V
Low level
V
OL
= V or V
IN
IH
IL
⎯
0.3
Input leakage current
I
V
V
V
V
V
V
= 0~3.6 V
1.65~2.3
⎯
±5.0
μA
μA
μA
μA
IN
IN
= V or V
IH
IN
IL
3-state output off-state current
Power off leakage current
Quiescent supply current
I
1.65~2.3
⎯
±10.0
OZ
= 0~3.6 V
OUT
I
, V
IN OUT
= 0~3.6 V
0
⎯
⎯
⎯
10.0
20.0
OFF
= V
or GND
1.65~2.3
1.65~2.3
IN
CC
I
CC
<
<
3.6 V
(V , V )
IN OUT
±20.0
CC
DC Characteristics (Ta = −40~85°C, 1.4 V
V
CC
<1.65 V)
Characteristics
Symbol
Test Condition
Min
Max
Unit
V
V
(V)
CC
0.65 ×
High level
V
IH
⎯
⎯
1.4~1.65
1.4~1.65
1.4~1.65
⎯
V
CC
Input voltage
0.05 ×
Low level
High level
V
IL
⎯
V
CC
V
CC
I
= −100 μA
⎯
OH
− 0.1
V
OH
V
V
= V or V
IH
IN
IL
I
I
I
= −2 mA
= 100 μA
= 2 mA
1.4
1.05
⎯
⎯
OH
OL
OL
Output voltage
V
1.4~1.65
1.4
0.05
0.35
±5.0
Low level
V
OL
= V or V
IN
IH
IL
⎯
Input leakage current
V
V
V
V
V
V
= 0~3.6 V
1.4~1.65
⎯
μA
μA
μA
μA
IN
= V or V
IH
IN
IL
3-state output off-state current
Power off leakage current
Quiescent supply current
I
1.4~1.65
⎯
±10.0
OZ
= 0~3.6 V
OUT
I
, V
IN OUT
= 0~3.6 V
0
⎯
⎯
⎯
10.0
20.0
OFF
= V
or GND
1.4~1.65
1.4~1.65
IN
CC
I
CC
<
<
3.6 V
(V , V
)
IN OUT
±20.0
CC
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2007-10-19
TC74VCX244FT/FK
<
DC Characteristics (Ta = −40~85°C, 1.2 V
V
CC
< 1.4 V)
Characteristics
Symbol
Test Condition
Min
Max
Unit
V
V
(V)
CC
0.8 ×
High level
V
IH
⎯
⎯
1.2~1.4
1.2~1.4
1.2
⎯
V
CC
Input voltage
0.05 ×
Low level
V
IL
⎯
V
CC
V
CC
High level
Low level
V
OH
V
= V or V
IH
I
I
= −100 μA
= 100 μA
⎯
IN
IL
OH
− 0.1
Output voltage
V
V
OL
V
V
V
V
V
V
V
= V or V
1.2
1.2
⎯
⎯
0.05
IN
IH
IL
OL
Input leakage current
I
= 0~3.6 V
±5.0
μA
μA
μA
μA
IN
IN
= V or V
IH
IN
IL
3-state output off-state current
Power off leakage current
Quiescent supply current
I
1.2
⎯
±10.0
OZ
= 0~3.6 V
OUT
I
, V
IN OUT
= 0~3.6 V
0
⎯
⎯
⎯
10.0
20.0
OFF
= V
or GND
1.2
1.2
IN
CC
I
CC
<
<
3.6 V
(V , V
)
IN OUT
±20.0
CC
AC Characteristics (Ta = −40~85°C, Input: t = t = 2.0 ns) (Note 1)
r
f
Characteristics
Symbol
Test Condition
Min
Max
Unit
ns
V
(V)
CC
1.2
3.0
2.0
1.5
0.8
0.6
3.0
2.0
1.5
0.8
0.6
3.0
2.0
1.5
0.8
0.6
⎯
42.0
16.8
8.4
C
L
C
L
C
L
C
L
C
L
C
L
C
L
C
L
= 15 pF, R = 2 kΩ
L
1.5 ± 0.1
1.8 ± 0.15
2.5 ± 0.2
3.3 ± 0.3
1.2
t
t
pLH
Propagation delay time
Figure 1, Figure 2
Figure 1, Figure 3
Figure 1, Figure 3
(Note 2)
pHL
= 30 pF, R = 500 Ω
4.2
L
3.5
49.0
19.6
9.8
= 15 pF, R = 2 kΩ
L
1.5 ± 0.1
1.8 ± 0.15
2.5 ± 0.2
3.3 ± 0.3
1.2
t
pZL
3-state output enable time
3-state output disable time
Output to output skew
ns
ns
ns
t
pZH
= 30 pF, R = 500 Ω
5.5
L
4.5
29.0
11.6
5.8
= 15 pF, R = 2 kΩ
L
1.5 ± 0.1
1.8 ± 0.15
2.5 ± 0.2
3.3 ± 0.3
1.2
t
pLZ
t
pHZ
= 30 pF, R = 500 Ω
3.2
L
3.0
1.5
= 15 pF, R = 2 kΩ
L
1.5 ± 0.1
1.8 ± 0.15
2.5 ± 0.2
3.3 ± 0.3
⎯
1.5
t
t
osLH
⎯
0.5
osHL
= 30 pF, R = 500 Ω
⎯
0.5
L
⎯
0.5
Note 1: For CL = 50 pF, add approximately 300 ps to the AC maximum specification.
Note 2: This parameter is guaranteed by design.
(t
= |t
− t
|, t
pLHn osHL
= |t
− t
|)
pHLn
osLH
pLHm
pHLm
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2007-10-19
TC74VCX244FT/FK
Dynamic Switching Characteristics (Ta = 25°C, Input: tr = tf = 2.0 ns, CL = 30 pF)
Characteristics
Symbol
Test Condition
Typ.
Unit
V
V
CC
(V)
V
IH
V
IH
V
IH
V
IH
V
IH
V
IH
V
IH
V
IH
V
IH
= 1.8 V, V = 0 V
(Note)
(Note)
(Note)
(Note)
(Note)
(Note)
(Note)
(Note)
(Note)
1.8
0.25
0.6
IL
Quiet output maximum dynamic V
V
OLP
= 2.5 V, V = 0 V
2.5
3.3
1.8
2.5
3.3
1.8
2.5
3.3
OL
IL
= 3.3 V, V = 0 V
IL
0.8
= 1.8 V, V = 0 V
−0.25
−0.6
−0.8
1.5
IL
Quiet output minimum dynamic V
V
OLV
V
V
= 2.5 V, V = 0 V
OL
IL
= 3.3 V, V = 0 V
IL
= 1.8 V, V = 0 V
IL
Quiet output minimum dynamic V
V
OHV
= 2.5 V, V = 0 V
1.9
OH
IL
= 3.3 V, V = 0 V
IL
2.2
Note: This parameter is guaranteed by design.
Capacitive Characteristics (Ta = 25°C)
Characteristics
Symbol
Test Condition
Typ.
Unit
V
CC
(V)
Input capacitance
C
⎯
⎯
1.8, 2.5, 3.3
1.8, 2.5, 3.3
6
7
pF
pF
pF
IN
Output capacitance
C
O
Power dissipation capacitance
C
f
IN
= 10 MHz
(Note) 1.8, 2.5, 3.3
20
PD
Note:
C
PD
is defined as the value of the internal equivalent capacitance which is calculated from the operating
current consumption without load.
Average operating current can be obtained by the equation:
I
= C ･V ･f + I /8 (per bit)
PD CC IN CC
CC (opr)
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2007-10-19
TC74VCX244FT/FK
AC Test Circuit
6.0 V or V
Open
× 2
CC
Switch
GND
Measure
Output
VCC
Parameter
Switch
Open
Symbol
3.3 ± 0.3 V
1.5 ± 0.1 V
1.2 V
t
, t
pLH pHL
2.5 ± 0.2 V
1.8 ± 0.15 V
6.0 V
× 2
@V
@V
@V
@V
@V
= 3.3 ± 0.3 V
= 2.5 ± 0.2 V
= 1.8 ± 0.15 V
= 1.5 ± 0.1 V
= 1.2 V
CC
CC
CC
CC
CC
V
CC
RL
CL
500Ω
2kΩ
t
, t
pLZ pZL
30pF
15pF
t
, t
GND
pHZ pZH
Figure 1
AC Waveform
t 2.0 ns
r
t 2.0 ns
f
V
IH
90%
Input
(A)
V
M
10%
GND
V
OH
V
OL
Output
(Y)
V
M
t
t
pLH
pHL
Figure 2 t
, t
pLH pHL
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2007-10-19
TC74VCX244FT/FK
t 2.0 ns
r
t 2.0 ns
f
V
IH
90%
Output Enable
Control ( OE )
V
M
10%
t
GND
t
pLZ
pZL
3.0 V or V
CC
Output (Y)
Low to Off to Low
V
V
M
V
V
X
V
OL
t
t
pHZ
pZH
V
OH
Y
Output (Y)
M
High to Off to High
GND
Outputs
enabled
Outputs
disabled
Outputs
enabled
Figure 3 t
, t
, t
, t
pLZ pHZ pZL pZH
V
CC
Symbol
3.3 ± 0.3 V
2.5 ± 0.2 V
1.8 ± 0.15 V
1.5 ± 0.1 V
1.2 V
V
2.7 V
1.5 V
V
V
V
V
IH
CC
CC
CC
CC
V
V
CC
/2
V
CC
/2
V
CC
/2
V
CC
/2
M
V
V
V
+ 0.3 V
V
+ 0.15 V
− 0.15 V
V
+ 0.15 V
− 0.15 V
V
+ 0.1 V
− 0.1 V
V
+ 0.1 V
− 0.1 V
X
OL
OL
OL
OL
OL
V
OH
− 0.3 V
V
OH
V
OH
V
OH
V
OH
Y
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TC74VCX244FT/FK
Package Dimensions
Weight: 0.08 g (typ.)
10
2007-10-19
TC74VCX244FT/FK
Package Dimensions
Weight: 0.03 g (typ.)
11
2007-10-19
TC74VCX244FT/FK
RESTRICTIONS ON PRODUCT USE
20070701-EN GENERAL
• The information contained herein is subject to change without notice.
• TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor
devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical
stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of
safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of
such TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as
set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and
conditions set forth in the “Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability
Handbook” etc.
• The TOSHIBA products listed in this document are intended for usage in general electronics applications
(computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances,
etc.).These TOSHIBA products are neither intended nor warranted for usage in equipment that requires
extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or
bodily injury (“Unintended Usage”). Unintended Usage include atomic energy control instruments, airplane or
spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments,
medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in his
document shall be made at the customer’s own risk.
• The products described in this document shall not be used or embedded to any downstream products of which
manufacture, use and/or sale are prohibited under any applicable laws and regulations.
• The information contained herein is presented only as a guide for the applications of our products. No
responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which
may result from its use. No license is granted by implication or otherwise under any patents or other rights of
TOSHIBA or the third parties.
• Please contact your sales representative for product-by-product details in this document regarding RoHS
compatibility. Please use these products in this document in compliance with all applicable laws and regulations
that regulate the inclusion or use of controlled substances. Toshiba assumes no liability for damage or losses
occurring as a result of noncompliance with applicable laws and regulations.
12
2007-10-19
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