74VCXH162245TTR [STMICROELECTRONICS]
LOW VOLTAGE CMOS 16-BIT BUS TRANSCEIVER (3-STATE) WITH 3.6V TOLERANT INPUTS AND OUTPUTS; 低压CMOS 16位总线收发器（三态），采用3.6V容错输入和输出
| 型号： | 74VCXH162245TTR |
| 厂家： | 
ST |
| 描述： | LOW VOLTAGE CMOS 16-BIT BUS TRANSCEIVER (3-STATE) WITH 3.6V TOLERANT INPUTS AND OUTPUTS |
| 文件： | 总11页 (文件大小：275K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
74VCXH162245
LOW VOLTAGE CMOS 16-BIT BUS TRANSCEIVER
(3-STATE) WITH 3.6V TOLERANT INPUTS AND OUTPUTS
■
■
3.6V TOLERANT INPUTS AND OUTPUTS
HIGH SPEED A OUTPUTS :
t
t
= 3.4 ns (MAX.) at V = 3.0 to 3.6V
PD
CC
= 4.3 ns (MAX.) at V = 2.3 to 2.7V
PD
CC
■
■
■
SYMMETRICAL IMPEDANCE A OUTPUTS:
|I | = I = 12mA (MIN) at V = 3.0V
OH
OL
CC
|I | = I = 8mA (MIN) at V = 2.3V
TSSOP
TUBE
OH
OL
CC
HIGH SPEED B OUTPUTS :
t
= 2.5 ns (MAX.) at V = 3.0 to 3.6V
PD
CC
t
= 3.2 ns (MAX.) at V = 2.3 to 2.7V
PD
CC
ORDER CODES
PACKAGE
SYMMETRICAL IMPEDANCE B OUTPUTS:
|I | = I = 24mA (MIN) at V = 3.0V
T & R
OH
OL
CC
TSSOP
74VCXH162245TTR
|I | = I = 18mA (MIN) at V = 2.3V
OH
OL
CC
■
■
■
■
POWER DOWN PROTECTION ON INPUTS
AND OUTPUTS
26Ω SERIE RESISTORS IN A PORT
OUTPUT
PIN CONNECTION
OPERATING VOLTAGE RANGE:
V
(OPR) = 2.3V to 3.6V
CC
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES H162245
■
■
BUS HOLD PROVIDED ON BOTH SIDES
LATCH-UP PERFORMANCE EXCEEDS
300mA (JESD 17)
■
ESD PERFORMANCE:
HBM > 2000V (MIL STD 883 method 3015);
MM > 200V
DESCRIPTION
The 74VCXH162245 is a low voltage CMOS 16
BIT BUS TRANSCEIVER (3-STATE) fabricated
with sub-micron silicon gate and five-layer metal
2
wiring C MOS technology. It is ideal for low power
and very high speed 2.3 to 3.6V applications; it
can be interfaced to 3.6V 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
isolated. The device circuits is including 26Ω se-
ries resistance in the A port outputs. These resis-
tors permit to reduce line noise in high speed ap-
plications. Bus hold on data inputs is provided in
order to eliminate the need for external pull-up or
pull-down resistor.
July 2003
1/11
74VCXH162245
All inputs and outputs are equipped with
protection 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.
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
OUTPUT
Yn
G
DIR
A BUS
B BUS
L
L
L
H
X
OUTPUT
INPUT
Z
INPUT
OUTPUT
Z
A = B
B = A
Z
H
X : Don‘t Care
Z : High Impedance
2/11
74VCXH162245
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
Supply Voltage
-0.5 to +4.6
-0.5 to +4.6
-0.5 to +4.6
V
V
CC
V
DC Input Voltage
I
V
DC Output Voltage (OFF State)
DC Output Voltage (High or Low State) (note 1)
DC Input Diode Current
V
O
O
V
I
-0.5 to V + 0.5
V
CC
- 50
- 50
mA
mA
mA
mA
mW
°C
°C
IK
I
DC Output Diode Current (note 2)
DC Output Current
OK
I
± 50
O
I
or I
DC V or Ground Current per Supply Pin
± 100
400
CC
GND
CC
P
Power Dissipation
D
T
Storage Temperature
Lead Temperature (10 sec)
-65 to +150
300
stg
T
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, V > V
O
O
CC
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Value
Unit
V
Supply Voltage
2.3 to 3.6
-0.3 to 3.6
0 to 3.6
V
V
CC
V
Input Voltage
I
V
Output Voltage (OFF State)
V
O
V
Output Voltage (High or Low State)
0 to V
V
O
CC
I
I
I
I
, I
High or Low Level Output Current - A side (V = 3.0 to 3.6V)
± 12
± 8
mA
mA
mA
mA
°C
OH OL
CC
, I
High or Low Level Output Current - A side (V = 2.3 to 2.7V)
OH OL
CC
, I
High or Low Level Output Current - B side (V = 3.0 to 3.6V)
± 24
OH OL
CC
, I
High or Low Level Output Current - B side (V = 2.3 to 2.7V)
± 18
OH OL
CC
T
Operating Temperature
-55 to 125
0 to 10
op
dt/dv
Input Rise and Fall Time (note 1)
ns/V
1) V from 0.8V to 2V at V = 3.0V
IN
CC
3/11
74VCXH162245
DC SPECIFICATIONS (2.7V < V < 3.6V unless otherwise specified)
CC
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
2.7 to 3.6
V
V
Low Level Input
Voltage
IL
0.8
0.8
V
V
High Level Output
Voltage
(A Outputs)
I =-100 µA
V
V
-0.2
V
-0.2
2.7 to 3.6
2.7
OH
OH
O
CC
CC
I =-6 mA
2.2
2.4
2.2
2.2
O
V
V
V
V
I =-8 mA
2.4
2.2
O
3.0
I =-12 mA
O
High Level Output
Voltage
(B Outputs)
I =-100 µA
-0.2
V
-0.2
2.7 to 3.6
2.7
O
CC
CC
I =-12 mA
2.2
2.4
2.2
2.2
2.4
2.2
O
I =-18 mA
O
3.0
I =-24 mA
O
V
V
Low Level Output
Voltage
(A Outputs)
I =100 µA
2.7 to 3.6
2.7
0.2
0.4
0.2
0.4
OL
OL
O
I =6 mA
O
I =8 mA
0.55
0.8
0.55
0.8
O
3.0
I =12 mA
O
Low Level Output
Voltage
(B Outputs)
I =100 µA
2.7 to 3.6
2.7
0.2
0.2
O
I =12 mA
0.4
0.4
O
I =18 mA
0.4
0.4
O
3.0
2.7 to 3.6
3.0
I =24 mA
0.55
0.55
O
I
Input Leakage
Current
I
V = 0 to 3.6V
± 5
± 5
µA
µA
I
I
Input Hold Current
V = 0.8V
75
75
I(HOLD)
I
V = 2V
-75
-75
I
V = 0 to 3.6V
3.6
0
± 500
± 500
I
I
Power Off Leakage
Current
off
V or V = 0 to 3.6V
10
10
µA
µA
I
O
I
High Impedance
Output Leakage
Current
OZ
V = V or V
I
IH
IL
2.7 to 3.6
± 10
± 10
V
= 0 to 3.6V
O
I
Quiescent Supply
Current
V = V or GND
I CC
20
20
CC
2.7 to 3.6
2.7 to 3.6
µA
µA
V or V = V to
I
O
CC
± 20
750
± 20
750
3.6V
∆I
I
incr. per Input
V
= V - 0.6V
CC
CC
IH CC
4/11
74VCXH162245
DC SPECIFICATIONS (2.3V < V < 2.7V unless otherwise specified)
CC
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
1.6
1.6
2.3 to 2.7
V
V
Low Level Input
Voltage
IL
0.7
0.7
V
V
High Level Output
Voltage
(A Outputs)
I =-100 µA
V
V
-0.2
V
-0.2
2.3 to 2.7
2.3
OH
OH
O
CC
CC
I =-4 mA
2.0
1.8
1.7
2.0
O
V
V
I =-6 mA
1.8
1.7
O
I =-8 mA
O
High Level Output
Voltage
(B Outputs)
I =-100 µA
-0.2
V
-0.2
2.3 to 2.7
2.3
O
CC
CC
I =-6 mA
2.0
1.8
1.7
2.0
1.8
1.7
O
I =-12 mA
O
I =-18 mA
O
V
V
Low Level Output
Voltage
(A Outputs)
I =100 µA
2.3 to 2.7
2.3
0.2
0.4
0.6
0.2
0.4
0.6
0.2
0.4
0.6
0.2
0.4
0.6
OL
OL
O
I =6 mA
V
V
O
I =8 mA
O
Low Level Output
Voltage
(B Outputs)
I =100 µA
2.3 to 2.7
2.3
O
I =12 mA
O
I =18 mA
O
I
Input Leakage
Current
I
V = 0 to 3.6V
2.3 to 2.7
± 5
± 5
µA
µA
µA
I
I
Input Hold Current
V = 0.7V
45
45
I(HOLD)
I
2.3
0
V = 1.7V
-45
-45
I
I
Power Off Leakage
Current
off
V or V = 0 to 3.6V
10
10
I
O
I
High Impedance
Output Leakage
Current
OZ
V = V or V
I
IH
IL
2.3 to 2.7
2.3 to 2.7
± 10
± 10
µA
µA
V
= 0 to 3.6V
O
I
Quiescent Supply
Current
V = V or GND
I CC
20
20
CC
V or V = V to
I
O
CC
± 20
± 20
3.6V
5/11
74VCXH162245
DYNAMIC SWITCHING CHARACTERISTICS (T = 25°C, Input t = t = 2.0ns, C = 30pF, R = 500Ω)
a
r
f
L
L
Test Condition
Value
= 25 °C
T
Symbol
Parameter
Unit
A
V
CC
(V)
Min.
Typ.
0.6
Max.
V
V
V
V
Dynamic Peak Low Voltage
Quiet Output (note 1, 3)
(A to B)
2.5
3.3
2.5
3.3
2.5
3.3
2.5
3.3
2.5
3.3
2.5
3.3
OLP
OLP
OLV
OLV
OHV
OHV
V
= 0V
= V
IL
IL
IL
IL
IL
IL
V
V
V
V
V
V
V
0.8
IH
CC
Dynamic Peak Low Voltage
Quiet Output (note 1, 3)
(B to A)
0.25
0.35
-0.6
-0.8
-0.25
-0.35
1.9
V
V
= 0V
= V
IH
CC
Dynamic Valley Low Voltage
Quiet Output (note 1, 3)
(A to B)
V
V
= 0V
= V
IH
CC
Dynamic Valley Low Voltage
Quiet Output (note 1, 3)
(B to A)
V
V
= 0V
= V
IH
CC
V
V
Dynamic Valley High Voltage
Quiet Output (note 2, 3)
(A to B)
V
V
= 0V
= V
2.2
IH
CC
Dynamic Valley High Voltage
Quiet Output (note 2, 3)
(B to A)
2.05
2.65
V
= 0V
= V
V
IH
CC
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.
2) 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 HIGH state.
3) Parameters guaranteed by design.
AC ELECTRICAL CHARACTERISTICS (C = 30pF, R = 500Ω, Input t = t = 2.0ns)
L
L
r
f
Test Condition
Value
Symbol
Parameter
-40 to 85 °C
-55 to 125 °C
Unit
V
CC
(V)
Min.
1.0
Max.
3.2
Min.
Max.
t
t
t
Propagation Delay
Time (A to B)
2.3 to 2.7
3.0 to 3.6
2.3 to 2.7
3.0 to 3.6
2.3 to 2.7
3.0 to 3.6
2.3 to 2.7
3.0 to 3.6
2.3 to 2.7
3.0 to 3.6
2.3 to 2.7
3.0 to 3.6
2.3 to 2.7
3.0 to 3.6
1.0
0.8
1.0
0.8
1.0
0.8
1.0
0.8
1.0
0.8
1.0
0.8
3.7
3.0
4.9
4.0
5.8
4.3
6.8
4.8
4.8
4.2
5.7
4.7
0.5
0.5
PLH PHL
ns
ns
ns
ns
ns
ns
ns
0.8
1.0
0.8
1.0
0.8
1.0
0.8
1.0
0.8
1.0
0.8
2.5
4.3
3.4
4.9
3.8
5.7
4.2
4.2
3.7
4.8
4.1
0.5
0.5
t
Propagation Delay
Time (B to A)
PLH PHL
t
t
t
t
t
Output Enable Time
(A to B)
PZL PZH
t
Output Enable Time
(B to A)
PZL PZH
t
Output Disable Time
(A to B)
PLZ PHZ
t
Output Disable Time
(B to A)
PLZ PHZ
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
6/11
74VCXH162245
CAPACITIVE CHARACTERISTICS
Test Condition
Value
T
= 25 °C
Typ.
Symbol
Parameter
Unit
A
V
(V)
CC
Min.
Max.
C
Input Capacitance
V
V
= 0 or V
= 0 or V
2.5 or 3.3
2.5 or 3.3
2.5 or 3.3
4
8
pF
pF
pF
IN
IN
CC
C
Output Capacitance
OUT
IN
CC
C
Power Dissipation Capacitance
(note 1)
f
= 10MHz
28
PD
IN
V
= 0 or V
CC
IN
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
TEST CIRCUIT
TEST
SWITCH
t
t
t
t
, t
Open
6V
PLH PHL
, t
(V = 3.0 to 3.6V)
CC
PZL PLZ
, t
(V = 2.3 to 2.7V)
2V
CC
PZL PLZ
CC
, t
GND
PZH PHZ
C
R
R
= 30 pF or equivalent (includes jig and probe capacitance)
L
L
T
= R1 = 500Ω or equivalent
= Z
of pulse generator (typically 50Ω)
OUT
WAVEFORM SYMBOL VALUES
Symbol
V
CC
3.0 to3.6V
2.3 to 2.7V
V
V
2.7V
1.5V
IH
CC
V
V
/2
M
CC
V
V
V
+ 0.3V
- 0.3V
V
OL
+ 0.15V
- 0.15V
X
Y
OL
V
V
OH
OH
7/11
74VCXH162245
WAVEFORM 1 : PROPAGATION DELAYS (f=1MHz; 50% duty cycle)
WAVEFORM 2 : OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle)
8/11
74VCXH162245
TSSOP48 MECHANICAL DATA
mm.
inch
TYP.
DIM.
MIN.
TYP
MAX.
1.2
MIN.
MAX.
0.047
0.006
A
A1
A2
b
0.05
0.15
0.002
0.9
0.035
0.17
0.09
12.4
0.27
0.20
12.6
0.0067
0.0035
0.488
0.011
0.0079
0.496
c
D
E
8.1 BSC
0.5 BSC
0.318 BSC
E1
e
6.0
6.2
0.236
0.244
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
7065588C
9/11
74VCXH162245
Tape & Reel TSSOP48 MECHANICAL DATA
mm.
TYP
inch
TYP.
DIM.
MIN.
MAX.
330
MIN.
MAX.
12.992
0.519
A
C
12.8
20.2
60
13.2
0.504
0.795
2.362
D
N
T
30.4
8.9
1.197
0.350
0.524
0.067
0.161
0.476
Ao
Bo
Ko
Po
P
8.7
13.1
1.5
0.343
0.516
0.059
0.153
0.468
13.3
1.7
3.9
4.1
11.9
12.1
10/11
74VCXH162245
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 result from
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
© 2003 STMicroelectronics - Printed in Italy - All Rights Reserved
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11/11
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