74VCX162244TTR [STMICROELECTRONICS]
LOW VOLTAGE CMOS 16-BIT BUS BUFFER (3-STATE)WITH 3.6V TOLERANT INPUTS AND OUTPUTS; 低压CMOS 16位总线缓冲器（三态），采用3.6V容错输入和输出
| 型号： | 74VCX162244TTR |
| 厂家： | 
ST |
| 描述： | LOW VOLTAGE CMOS 16-BIT BUS BUFFER (3-STATE)WITH 3.6V TOLERANT INPUTS AND OUTPUTS |
| 文件： | 总11页 (文件大小：231K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
74VCX162244
LOW VOLTAGE CMOS 16-BIT BUS BUFFER (3-STATE)
WITH 3.6V TOLERANT INPUTS AND OUTPUTS
■
■
3.6V TOLERANT INPUTS AND OUTPUTS
HIGH SPEED :
t
t
t
= 3.4 ns (MAX.) at V = 3.0 to 3.6V
PD
PD
PD
CC
= 3.8 ns (MAX.) at V = 2.3 to 2.7V
CC
= 5.7 ns (MAX.) at V = 1.8V
CC
■
■
POWER DOWN PROTECTION ON INPUTS
AND OUTPUTS
SYMMETRICAL OUTPUT IMPEDANCE:
TSSOP
TUBE
|I | = I = 12mA (MIN) at V = 3.0V
OH
OL
CC
|I | = I = 8mA (MIN) at V = 2.3V
OH
OL
CC
ORDER CODES
PACKAGE
|I | = I = 4mA (MIN) at V = 1.8V
OH
OL
CC
T & R
■
26Ω SERIE RESISTORS IN OUTPUTS
OPERATING VOLTAGE RANGE:
TSSOP
74VCX162244TTR
V
(OPR) = 1.8V to 3.6V
CC
PIN CONNECTION
■
■
■
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 162244
LATCH-UP PERFORMANCE EXCEEDS
300mA (JESD 17)
ESD PERFORMANCE:
HBM > 2000V (MIL STD 883 method 3015);
MM > 200V
DESCRIPTION
The 74VCX162244 is a low voltage CMOS 16 BIT
BUS BUFFER (NON INVERTED) fabricated with
sub-micron silicon gate and five-layer metal wiring
2
C MOS technology. It is ideal for low power and
very high speed 1.8 to 3.6V applications; it can be
interfaced to 3.6V signal environment for both
inputs and outputs.
Any nG output control governs four BUS
BUFFERS. Output Enable input (nG) tied together
gives full 16-bit operation.
When nG is LOW, the outputs are on. When nG is
HIGH, the output are in high impedance state.
This device is designed to be used with 3 state
memory address drivers, etc.
The device circuits is including 26Ω series
resistance in the outputs. These resistors permits
to reduce line noise in high speed applications.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
February 2003
1/11
74VCX162244
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
IEC LOGIC SYMBOLS
PIN No
SYMBOL
NAME AND FUNCTION
1
1G
Output Enable Input
2, 3, 5, 6
8, 9, 11, 12
1Y1 to 1Y4 Data Outputs
2Y1 to 2Y4 Data Outputs
13, 14, 16, 17 3Y1 to 3Y4 Data Outputs
19, 20, 22, 23 4Y1 to 4Y4 Data Outputs
24
25
4G
3G
Output Enable Input
Output Enable Input
30, 29, 27, 26 4A1 to 4A4 Data Outputs
36, 35, 33, 32 3A1 to 3A4 Data Outputs
41, 40, 38, 37 2A1 to 2A4 Data Outputs
47, 46, 44, 43 1A1 to 1A4 Data Outputs
48
2G
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
OUTPUT
Yn
G
An
L
L
L
H
X
L
H
Z
H
X : Don‘t Care
Z : High Impedance
2/11
74VCX162244
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
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
O
O
V
I
-0.5 to V + 0.5
V
CC
- 50
- 50
mA
mA
mA
mA
mW
°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
°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, V > V
O
O
CC
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Value
Unit
V
Supply Voltage
1.8 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
High or Low Level Output Current (V = 3.0 to 3.6V)
± 12
± 8
mA
mA
mA
°C
ns/V
OH OL
CC
, I
High or Low Level Output Current (V = 2.3 to 2.7V)
OH OL
CC
, I
High or Low Level Output Current (V = 1.8V)
± 4
OH OL
CC
T
Operating Temperature
-55 to 125
0 to 10
op
dt/dv
Input Rise and Fall Time (note 1)
1) V from 0.8V to 2V at V = 3.0V
IN
CC
3/11
74VCX162244
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
High Level Output
Voltage
I =-100 µA
V
-0.2
V
-0.2
2.7 to 3.6
2.7
OH
O
CC
CC
I =-6 mA
2.2
2.4
2.2
2.2
O
V
V
I =-8 mA
2.4
2.2
O
3.0
I =-12 mA
O
V
Low Level Output
Voltage
I =100 µA
2.7 to 3.6
2.7
0.2
0.4
0.5
0.8
0.2
0.4
0.5
0.8
OL
O
I =6 mA
O
I =8 mA
O
3.0
I =12 mA
O
I
Input Leakage
Current
I
V = 0 to 3.6V
2.7 to 3.6
0
± 5
± 5
µA
µA
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
2.7 to 3.6
± 10
± 10
µA
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
74VCX162244
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
High Level Output
Voltage
I =-100 µA
V
-0.2
V
-0.2
2.3 to 2.7
2.3
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
V
Low Level Output
Voltage
I =100 µA
2.3 to 2.7
2.3
0.2
0.4
0.6
0.2
0.4
0.6
OL
O
I =6 mA
O
I =8 mA
O
I
Input Leakage
Current
I
V = 0 to 3.6V
2.3 to 2.7
0
± 5
± 5
µA
µA
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
DC SPECIFICATIONS (1.8V < V < 2.3V unless otherwise specified)
CC
Test Condition
Value
Symbol
Parameter
-40 to 85 °C
-55 to 125 °C
Unit
V
CC
(V)
Min.
0.7 VCC
Max.
Min.
0.7 VCC
Max.
V
High Level Input
Voltage
IH
V
V
1.8 to 2.3
V
Low Level Input
Voltage
IL
0.2 VCC
0.2 VCC
V
High Level Output
Voltage
I =-100 µA
V
-0.2
V
-0.2
OH
O
CC
CC
1.8
1.8
V
V
I =-4 mA
1.4
1.4
O
V
Low Level Output
Voltage
I =100 µA
0.2
0.3
0.2
0.3
OL
O
I =4 mA
O
I
Input Leakage
Current
I
V = 0 to 3.6V
1.8
0
± 5
± 5
µA
µA
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
1.8
1.8
± 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
74VCX162244
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.
Max.
V
Dynamic Low Voltage Quiet
Output (note 1, 3)
1.8
2.5
3.3
1.8
2.5
3.3
1.8
2.5
3.3
0.15
0.25
0.35
-0.15
-0.25
-0.35
1.55
2.05
2.65
OLP
OLV
OHV
V
= 0V
IL
IL
IL
V
V
V
V
= V
CC
IH
V
Dynamic Low Voltage Quiet
Output (note 1, 3)
V
= 0V
= V
V
IH
CC
V
Dynamic High Voltage Quiet
Output (note 2, 3)
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.
1.5
Max.
5.7
Min.
Max.
t
t
Propagation Delay
Time
1.8
1.5
1.0
0.8
1.5
1.0
0.8
1.5
1.0
0.8
6.2
4.3
4.0
7.3
5.8
4.3
5.9
4.7
4.2
0.5
0.5
0.5
PLH PHL
2.3 to 2.7
3.0 to 3.6
1.8
1.0
0.8
1.5
1.0
0.8
1.5
1.0
0.8
3.8
3.4
6.7
5.1
3.8
5.0
4.0
3.6
0.5
0.5
0.5
ns
ns
ns
ns
t
t
t
Output Enable Time
Output Disable Time
PZL PZH
2.3 to 2.7
3.0 to 3.6
1.8
t
PLZ PHZ
2.3 to 2.7
3.0 to 3.6
1.8
t
t
Output To Output
Skew Time (note1, 2)
OSLH OSHL
2.3 to 2.7
3.0 to 3.6
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
74VCX162244
CAPACITIVE CHARACTERISTICS
Test Condition
Value
T
= 25 °C
Typ.
Symbol
Parameter
Unit
A
V
(V)
CC
Min.
Max.
C
Input Capacitance
Output Capacitance
V
V
= 0 or V
= 0 or V
1.8, 2.5 or 3.3
1.8, 2.5 or 3.3
6
7
pF
pF
pF
IN
IN
CC
C
OUT
IN
CC
C
Power Dissipation Capacitance 1.8, 2.5 or 3.3
(note 1)
f
= 10MHz
20
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 or 1.8V)
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
1.8V
V
V
V
CC
2.7V
1.5V
IH
CC
V
V
/2
V
/2
M
CC
CC
V
V
V
+ 0.3V
- 0.3V
V
V
+ 0.15V
- 0.15V
V
OL
+ 0.15V
- 0.15V
X
Y
OL
OL
OH
V
V
OH
OH
7/11
74VCX162244
WAVEFORM 1: PROPAGATION DELAYS (f=1MHz; 50% duty cycle)
WAVEFORM 2: OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle)
8/11
74VCX162244
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
74VCX162244
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
74VCX162244
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.
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11/11
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