Datasheet

UNISONIC TECHNOLOGIES CO., LTD
U74LVC640
CMOS IC
OCTAL BUS TRANSCEIVER
WITH 3-STATE INVERTING
OUTPUTS
„
DESCRIPTION
The U74LVC640 is designed for asynchronous communication
between data buses and has inverting outputs. While the
direction-control(DIR) input is high, data transmits from the A bus to
the B bus. In contrast, Data transmits from the B bus to the A bus
DIR input is low. The output-enable(OE) will disable the device and
isolate from the buses when high voltage is applied on it.
„
TSSOP-20
FEATURES
* Supply Voltage Range From 1.2V to 3.6V
* Input Accept Voltages up to 5.5V
* Partial-Power-Down Mode Operation
* Max tPD is 6.3ns at 3.3V
„
ORDERING INFORMATION
Ordering Number
U74LVC640G-P20-R
Package
TSSOP-20
www.unisonic.com.tw
Copyright © 2010 Unisonic Technologies Co., Ltd
Packing
Tape Reel
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QW-R502-412.A
U74LVC640
„
„
PIN CONFIGURATION
DIR
1
20 VCC
A1
2
19
A2
3
18 B1
A3
4
17 B2
A4
5
16
B3
A5
6
15
B4
A6
7
14
B5
A7
8
13
B6
A8
9
12 B7
GND 10
11 B8
OE
FUNCTION TABLE
INPUT
OE
H
L
L
Note: H: HIGH voltage level
„
CMOS IC
FUNCTION
DIR
X
Isolation
H
Transmit data from A bus to B bus, B=A
L
Transmit data from B bus to A bus, A=B
L: LOW voltage level X: Don’t care
LOGIC DIAGRAM (Negative Logic)
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U74LVC640
„
CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC
-0.5~6.5
V
Input Voltage
VIN
-0.5~ 6.5
V
Voltage Applied To Output In High-Impedance Or Power-Off State
-0.5~6.5
VOUT
V
Voltage applied to output in high or low state
-0.5~Vcc+0.5
Input Clamp Current
IIK
-50
mA
Output Clamp Current
IOK
-50
mA
Output Current
IOUT
±50
mA
VCC or GND Current
ICC
±100
mA
°C
Storage Temperature
TSTG
-65 ~ +150
Note: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
„
OPERATING CHARACTERISTICS
PARAMETER
Power Dissipation Capacitance
Per Transceiver
„
SYMBOL
CPD
TEST CONDITIONS
VCC =1.8V
ΟΕ =0
VCC =2.5V
f=10MHZ
VCC =3.3V
VCC =1.8V
ΟΕ =1
VCC =2.5V
f=10MHZ
VCC =3.3V
TYP
42
43
45
1
1
2
UNIT
pF
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
Supply Voltage
VCC
High-Level Input Voltage
VIH
Low-Level Input Voltage
VIL
Input Voltage
Output Voltage
TEST CONDITIONS
Operating
Data retention only
VCC = 1.65 V ~ 1.95 V
VCC = 2.3 V ~ 2.7 V
VCC = 2.7 V ~ 3.6 V
VCC = 1.65 V ~ 1.95 V
VCC = 2.3 V ~ 2.7 V
VCC = 2.7 V ~ 3.6 V
VIN
VOUT
Output High Current
IOH
Output Low Current
IOL
VCC = 1.65 V
VCC = 2.3 V
VCC = 2.7 V
VCC = 3 V
VCC = 1.65 V
VCC = 2.3 V
VCC = 2.7 V
VCC = 3 V
TYP
Max
3.6
UNIT
V
0.65*Vcc
V
1.7
2
0.35*Vcc
0
0
UNISONIC TECHNOLOGIES CO., LTD
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Min
1.65
1.5
0.7
0.8
5.5
Vcc
-4
-8
-12
-24
4
8
12
24
V
V
V
mA
mA
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U74LVC640
„
CMOS IC
ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
High-Level Output Voltage
VOH
Low-Level Output Voltage
VOL
Input Current
Power OFF Leakage Current
Output Off-State Current
II(LEAK)
IOFF
IOZ
Quiescent Supply Current
Additional Quiescent
Current Per Input Pin
„
IQ
ΔIQ
TEST CONDITIONS
Min
IOH = –100μA,VCC=1.65 V to 3.6 V
Vcc-0.2
IOH = –4mA, VCC=1.65V
1.29
IOH = –8mA , VCC=2.3V
1.9
IOH = –12mA , VCC=2.7V
2.2
IOH = –12mA , VCC=3V
2.4
IOH = –24mA , VCC=3V
2.3
IOH = 100μA, VCC=1.65 V to 3.6 V
IOH = 4mA, VCC=1.65V
IOH = 8mA, VCC=2.3V
IOH = 12mA , VCC=2.7V
IOH = 24mA , VCC=3V
VIN = 5.5 V or GND , VCC=3.6V
VIN = 5.5 V or GND , VCC=0V
VOUT = 0 to 5.5 V , VCC=3.6V
VIN=VCC or GND,IOUT=0,VCC=3.6V
VIN=3.6~5.5v,IOUT=0,VCC=3.6V
VCC=2.7V ~ 3.6V, VIN= VCC -0.6V,
IOUT=0
TYP
Max
UNIT
V
0.1
0.24
0.3
0.4
0.55
±1
±1
±1
1
1
μA
μA
μA
μA
μA
500
μA
Max
12.2
7.8
7.1
6.1
14.8
10
9.3
8.3
16.5
9
8.3
7.3
UNIT
V
SWITCHING CHARACTERISTICS
PARAMETER
SYMBOL
Propagation Delay
(From A to B Or From B to A)
tPLH / tPHL
3-State Output Enable Time
( From ΟΕ to A or B)
tPZH / tPZL
3-State Output Disable Time
( From ΟΕ A to A or B)
tPLZ / tPLH
TEST CONDITIONS
VCC =1.8 V ± 0.15 V
VCC =2.5 V ± 0.2 V
VCC =2.7 V
VCC =3.3 V ± 0.3 V
VCC =1.8 V ± 0.15 V
VCC =2.5 V ± 0.2 V
VCC =2.7 V
VCC =3.3 V ± 0.3 V
VCC =1.8 V ± 0.15 V
VCC =2.5 V ± 0.2 V
VCC =2.7 V
VCC =3.3 V ± 0.3 V
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
Min
1
1
1
1.5
1
1
1
1.5
1
1
1
1.7
TYP
6
3.9
4.2
3.8
7
4.5
5.4
4.4
7.8
4
4.4
4.1
ns
ns
ns
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„
CMOS IC
TEST CIRCUIT AND WAVEFORMS
S
From Output
CL
VCC
1.8V ±0.15V
2.5V ±0.2V
2.7 V
3.3V ±0.3V
VLOAD
Open
GND
RL
TEST
tPLH/tPHL
tPHZ/tPZH
tPLZ/tPZL
S
Open
GND
VLOAD
RL
INPUTS
VIN
tR/tF
VCC
≤2ns
VCC
≤2ns
2.7 V
≤2.5ns
2.7 V
≤2.5ns
VM
V△
CL
RL
VLOAD
VCC/2
VCC/2
1.5V
1.5V
0.15V
0.15V
0.3V
0.3V
30 pF
30 pF
50 pF
50 pF
1 KΩ
500Ω
500Ω
500Ω
2 x VCC
2 x VCC
6V
6V
Note: CL includes probe and jig capacitance.
All input pulses are supplied by generators having the following characteristics: PRR ≤10MHz, Zo = 50Ω.
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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