74LCX16245TTR [STMICROELECTRONICS]

LOW VOLTAGE CMOS 16-BIT BUS TRANSCEIVER WITH 5V TOLERANT INPUTS AND OUTPUT (3-STATE); 具有5V容限输入和输出低电压CMOS 16位总线收发器( 3 -STATE )
74LCX16245TTR
型号: 74LCX16245TTR
厂家: ST    ST
描述:

LOW VOLTAGE CMOS 16-BIT BUS TRANSCEIVER WITH 5V TOLERANT INPUTS AND OUTPUT (3-STATE)
具有5V容限输入和输出低电压CMOS 16位总线收发器( 3 -STATE )

总线收发器 输出元件 输入元件
文件: 总9页 (文件大小:73K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
74LCX16245  
LOW VOLTAGE CMOS 16-BIT BUS TRANSCEIVER  
WITH 5V TOLERANT INPUTS AND OUTPUT (3-STATE)  
5V TOLERANT INPUTS AND OUTPUTS  
HIGH SPEED :  
t
= 4.5 ns (MAX.) at V = 3V  
PD  
CC  
POWER DOWN PROTECTION ON INPUTS  
AND OUTPUTS  
SYMMETRICAL OUTPUT IMPEDANCE:  
|I | = I = 24mA (MIN) at V = 3V  
TSSOP  
TUBE  
OH  
OL  
CC  
PCI BUS LEVELS GUARANTEED AT 24 mA  
BALANCED PROPAGATION DELAYS:  
t
t
PHL  
ORDER CODES  
PACKAGE  
PLH  
OPERATING VOLTAGE RANGE:  
(OPR) = 2.0V to 3.6V (1.5V Data  
T & R  
V
CC  
TSSOP  
74LCX16245TTR  
Retention)  
PIN AND FUNCTION COMPATIBLE WITH  
74 SERIES 16245  
LATCH-UP PERFORMANCE EXCEEDS  
500mA (JESD 17)  
PIN CONNECTION  
ESD PERFORMANCE:  
HBM > 2000V (MIL STD 883 method 3015);  
MM > 200V  
DESCRIPTION  
The 74LCX16245 is a low voltage CMOS 16 BIT  
BUS TRANSCEIVER (3-STATE) fabricated with  
sub-micron silicon gate and double-layer metal  
2
wiring C MOS technology. It is ideal for low power  
and high speed 3.3V applications; it can be  
interfaced to 5V signal environment for both inputs  
and outputs.  
This IC is intended for two-way asynchronous  
communication between data buses; the direction  
of data transmission is determined by DIR input.  
The two enable inputs nG can be used to disable  
the device so that the buses are effectively isolat-  
ed.  
It has same speed performance at 3.3V than 5V  
AC/ACT family, combined with a lower power con-  
sumption.  
All inputs and outputs are equipped with protec-  
tion circuits against static discharge, giving them  
2KV ESD immunity and transient excess voltage.  
All floating bus terminals during High Z State must  
be held HIGH or LOW.  
September 2001  
1/9  
74LCX16245  
INPUT AND OUTPUT EQUIVALENT CIRCUIT  
PIN DESCRIPTION  
IEC LOGIC SYMBOLS  
PIN No  
SYMBOL  
NAME AND FUNCTION  
1
1DIR  
Directional Control  
2, 3, 5, 6, 8, 9, 1B1 to 1B8 Data Inputs/Outputs  
11, 12  
13, 14, 16, 17, 2B1 to 2B8 Data Inputs/Outputs  
19, 20, 22, 23  
24  
25  
2DIR  
2G  
Directional Control  
Output Enable Input  
36, 35, 33, 32, 2A1 to 2A8 Data Inputs/Outputs  
30, 29, 27, 26  
47, 46, 44, 43, 1A1 to 1A8 Data Inputs/Outputs  
41, 40, 38, 38  
48  
1G  
Output Enable Input  
4, 10, 15, 21,  
28, 34, 39, 45  
GND  
Ground (0V)  
V
7, 18, 31, 42  
Positive Supply Voltage  
CC  
TRUTH TABLE  
INPUTS  
FUNCTION  
A BUS B BUS  
OUTPUT INPUT  
OUTPUT  
Yn  
G
DIR  
L
L
L
H
X
A = B  
B = A  
Z
INPUT  
Z
OUTPUT  
Z
H
X : Don‘t Care  
Z : High Impedance  
2/9  
74LCX16245  
ABSOLUTE MAXIMUM RATINGS  
Symbol  
Parameter  
Value  
Unit  
V
Supply Voltage  
-0.5 to +7.0  
-0.5 to +7.0  
-0.5 to +7.0  
V
V
V
CC  
V
DC Input Voltage (DIR, G)  
I
V
V
I
Bus I/O Voltage (OFF State)  
Bus I/O Voltage (High or Low State) (note 1)  
DC Input Diode Current  
I/O  
I/O  
IK  
-0.5 to V  
+ 0.5  
V
CC  
- 50  
mA  
mA  
mA  
mA  
mA  
°C  
I
DC Output Diode Current (note 2)  
DC Output Current  
- 50  
± 50  
OK  
I
O
I
DC Supply Current per Supply Pin  
DC Ground Current per Supply Pin  
Storage Temperature  
± 100  
CC  
I
± 100  
GND  
T
-65 to +150  
300  
stg  
T
Lead Temperature (10 sec)  
°C  
L
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is  
not implied  
1) I absolute maximum rating must be observed  
O
2) V < GND  
O
RECOMMENDED OPERATING CONDITIONS  
Symbol  
Parameter  
Value  
Unit  
V
Supply Voltage (note 1)  
Input Voltage  
2.0 to 3.6  
0 to 5.5  
0 to 5.5  
V
V
CC  
V
I
V
Output Voltage (OFF State)  
V
O
V
Output Voltage (High or Low State)  
0 to V  
V
O
CC  
I
I
, I  
High or Low Level Output Current (V = 3.0 to 3.6V)  
± 24  
± 12  
mA  
mA  
°C  
ns/V  
OH OL  
CC  
, I  
High or Low Level Output Current (V = 2.7V)  
OH OL  
CC  
T
Operating Temperature  
-55 to 125  
0 to 10  
op  
dt/dv  
Input Rise and Fall Time (note 2)  
1) Truth Table guaranteed: 1.5V to 3.6V  
2) V from 0.8V to 2V at V = 3.0V  
IN  
CC  
3/9  
74LCX16245  
DC SPECIFICATIONS  
Test Condition  
Value  
Symbol  
Parameter  
-40 to 85 °C  
Min. Max.  
-55 to 125 °C  
Unit  
V
(V)  
CC  
Min.  
Max.  
V
High Level Input  
Voltage  
IH  
2.0  
2.0  
V
V
2.7 to 3.6  
V
Low Level Input  
Voltage  
IL  
0.8  
0.8  
V
High Level Output  
Voltage  
I =-100 µA  
V
-0.2  
V
-0.2  
CC  
2.7 to 3.6  
2.7  
OH  
O
CC  
I =-12 mA  
2.2  
2.4  
2.2  
2.2  
O
V
V
I =-18 mA  
2.4  
2.2  
O
3.0  
I =-24 mA  
O
V
Low Level Output  
Voltage  
I =100 µA  
2.7 to 3.6  
2.7  
0.2  
0.4  
0.2  
0.4  
OL  
O
I =12 mA  
O
I =16 mA  
0.4  
0.4  
O
3.0  
I =24 mA  
0.55  
0.55  
O
I
Input Leakage  
Current  
I
V = 0 to 5.5V  
2.7 to 3.6  
0
± 5  
± 5  
µA  
µA  
I
I
Power Off Leakage  
Current  
off  
V or V = 5.5V  
10  
10  
I
O
I
I
High Impedance  
Output Leakage  
Current  
OZ  
CC  
V = V or V  
I
IH  
IL  
2.7 to 3.6  
± 5  
± 5  
µA  
V
= 0 to V  
O
CC  
Quiescent Supply  
Current  
V = V or GND  
I CC  
20  
20  
2.7 to 3.6  
2.7 to 3.6  
µA  
µA  
V or V = 3.6 to 5.5V  
± 20  
500  
± 20  
500  
I
O
I  
I
incr. per Input  
V
= V - 0.6V  
CC  
CC  
IH  
CC  
DYNAMIC SWITCHING CHARACTERISTICS  
Test Condition  
Value  
T
= 25 °C  
Symbol  
Parameter  
Unit  
A
V
CC  
(V)  
Min.  
Typ.  
Max.  
V
Dynamic Low Level Quiet  
Output (note 1)  
0.8  
C = 50pF  
OLP  
L
3.3  
V
V
= 0V, V = 3.3V  
V
-0.8  
IL  
IH  
OLV  
1) Number of outputs defined as ”n”. Measured with ”n-1” outputs switching from HIGH to LOW or LOW to HIGH. The remaining output is  
measured in the LOW state.  
4/9  
74LCX16245  
AC ELECTRICAL CHARACTERISTICS  
Test Condition  
Value  
-55 to 125 °C  
Symbol  
Parameter  
-40 to 85 °C  
Unit  
V
C
R
t = t  
CC  
L
L
s
r
(V)  
(pF)  
()  
500  
500  
(ns)  
Min.  
Max.  
Min.  
Max.  
t
t
t
t
Propagation Delay  
Time  
2.7  
1.5  
1.5  
1.5  
1.5  
1.5  
1.5  
5.2  
4.5  
7.2  
6.5  
6.9  
6.4  
1.0  
1.5  
1.5  
1.5  
1.5  
1.5  
1.5  
5.2  
4.5  
7.2  
6.5  
6.9  
6.4  
1.0  
PLH PHL  
50  
2.5  
ns  
ns  
3.0 to 3.6  
2.7  
t
Output Enable Time  
PZL PZH  
50  
2.5  
3.0 to 3.6  
2.7  
t
Output Disable Time  
PLZ PHZ  
50  
50  
500  
500  
2.5  
2.5  
ns  
ns  
3.0 to 3.6  
3.0 to 3.6  
t
t
Output To Output  
Skew Time (note1,  
2)  
OSLH  
OSHL  
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switch-  
ing in the same direction, either HIGH or LOW (t  
2) Parameter guaranteed by design  
= | t  
- t  
|, t  
= | t  
- t  
|)  
OSLH  
PLHm PLHn OSHL  
PHLm PHLn  
CAPACITIVE CHARACTERISTICS  
Test Condition  
Value  
T
= 25 °C  
Symbol  
Parameter  
Unit  
A
V
CC  
(V)  
Min.  
Typ.  
Max.  
C
Input Capacitance  
Output Capacitance  
V
V
= 0 to V  
3.3  
7
pF  
pF  
IN  
IN  
IN  
CC  
C
= 0 to V  
3.3  
3.3  
8
OUT  
CC  
C
Power Dissipation Capacitance  
(note 1)  
f
= 10MHz  
20  
PD  
IN  
IN  
pF  
V
= 0 or V  
CC  
1) C is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without  
PD  
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I  
circuit)  
= C x V x f + I /16 (per  
CC(opr)  
PD CC IN CC  
5/9  
74LCX16245  
TEST CIRCUIT  
TEST  
SWITCH  
t
t
t
, t  
Open  
6V  
PLH PHL  
, t  
PZL PLZ  
, t  
GND  
PZH PHZ  
C
R
R
= 50 pF or equivalent (includes jig and probe capacitance)  
L
L
T
= R1 = 500or equivalent  
= Z  
of pulse generator (typically 50)  
OUT  
WAVEFORM 1 : PROPAGATION DELAYS (f=1MHz; 50% duty cycle)  
6/9  
74LCX16245  
WAVEFORM 2 : OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle)  
7/9  
74LCX16245  
TSSOP48 MECHANICAL DATA  
mm.  
inch  
DIM.  
MIN.  
TYP  
MAX.  
1.1  
MIN.  
TYP.  
MAX.  
0.043  
0.006  
A
A1  
A2  
b
0.05  
0.15  
0.002  
0.9  
0.035  
0.17  
0.09  
12.4  
7.95  
6.0  
0.27  
0.20  
12.6  
8.25  
6.2  
0.0067  
0.0035  
0.408  
0.313  
0.236  
0.011  
0.0079  
0.496  
0.325  
0.244  
c
D
E
E1  
e
0.5 BSC  
0.0197 BSC  
K
0°  
8°  
0°  
8°  
L
0.50  
0.75  
0.020  
0.030  
A2  
A
K
L
b
e
A1  
E
c
D
E1  
PIN 1 IDENTIFICATION  
1
7065588A  
8/9  
74LCX16245  
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the  
consequences of use of such information nor for any infringement of patents or other rights of third parties which may resultfrom  
its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications  
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information  
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or  
systems without express written approval of STMicroelectronics.  
The ST logo is a registered trademark of STMicroelectronics  
2001 STMicroelectronics - Printed in Italy - All Rights Reserved  
STMicroelectronics GROUP OF COMPANIES  
Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco  
Singapore - Spain - Sweden - Switzerland - United Kingdom  
http://www.st.com  
9/9  

相关型号:

74LCX16245_07

Low voltage CMOS 16-bit bus transceiver (3-state) with 5V tolerant inputs and outputs
STMICROELECTR

74LCX162541

Low voltage CMOS 16-bit bus buffer with 5V tolerant inputs and outputs
STMICROELECTR

74LCX162541TTR

Low voltage CMOS 16-bit bus buffer with 5V tolerant inputs and outputs
STMICROELECTR

74LCX162841MEA

LVC/LCX/Z SERIES, DUAL 10-BIT DRIVER, TRUE OUTPUT, PDSO56, 0.300 INCH, PLASTIC, SSOP-56
TI

74LCX162841MEAX

LVC/LCX/Z SERIES, DUAL 10-BIT DRIVER, TRUE OUTPUT, PDSO56, 0.300 INCH, PLASTIC, SSOP-56
TI

74LCX162841MTD

LVC/LCX/Z SERIES, DUAL 10-BIT DRIVER, TRUE OUTPUT, PDSO56, 6.10 MM, PLASTIC, TSSOP-56
TI

74LCX16373

Low Voltage 16-Bit Transparent Latch with 5V Tolerant Inputs and Outputs
FAIRCHILD

74LCX16373

LOW VOLTAGE CMOS 16-BIT D-TYPE LATCH(3-STATE)WITH 5V TOLERANT INPUTS AND OUTPUTS
STMICROELECTR

74LCX16373AT

8-Bit D-Type Latch
ETC

74LCX16373ATTR

暂无描述
STMICROELECTR

74LCX16373G

Low Voltage 16-Bit Transparent Latch with 5V Tolerant Inputs and Outputs
FAIRCHILD

74LCX16373G

Bus Driver
ONSEMI