ETC 74VCX16244TTR

74VCX16244
LOW VOLTAGE CMOS 16-BIT BUS BUFFER (3-STATE)
WITH 3.6V TOLERANT INPUTS AND OUTPUTS
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■
■
■
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3.6V TOLERANT INPUTS AND OUTPUTS
HIGH SPEED :
tPD = 2.5 ns (MAX.) at VCC = 3.0 to 3.6V
tPD = 3.0 ns (MAX.) at VCC = 2.3 to 2.7V
tPD = 5.0 ns (MAX.) at VCC = 1.8V
POWER DOWN PROTECTION ON INPUTS
AND OUTPUTS
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 24mA (MIN) at VCC = 3.0V
|IOH| = IOL = 18mA (MIN) at VCC = 2.3V
|IOH| = IOL = 6mA (MIN) at VCC = 1.8V
OPERATING VOLTAGE RANGE:
VCC(OPR) = 1.8V to 3.6V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 16244
LATCH-UP PERFORMANCE EXCEEDS
300mA (JESD 17)
ESD PERFORMANCE:
HBM > 2000V (MIL STD 883 method 3015);
MM > 200V
TSSOP
ORDER CODES
PACKAGE
TSSOP
TUBE
T &R
74VCX16244TTR
PIN CONNECTION
DESCRIPTION
The 74VCX16244 is a low voltage CMOS 16 BIT
BUS BUFFER (NON INVERTED) fabricated with
sub-micron silicon gate and five-layer metal wiring
C2MOS 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.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
September 2001
1/10
74VCX16244
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
IEC LOGIC SYMBOLS
SYMBOL
1
2, 3, 5, 6
8, 9, 11, 12
13, 14, 16, 17
19, 20, 22, 23
24
25
30, 29, 27, 26
36, 35, 33, 32
41, 40, 38, 37
47, 46, 44, 43
48
4, 10, 15, 21,
28, 34, 39, 45
NAME AND FUNCTION
1G
to 1Y4
to 2Y4
to 3Y4
to 4Y4
4G
3G
4A1 to 4A4
3A1 to 3A4
2A1 to 2A4
1A1 to 1A4
2G
1Y1
2Y1
3Y1
4Y1
7, 18, 31, 42
Output Enable
Data Outputs
Data Outputs
Data Outputs
Data Outputs
Output Enable
Output Enable
Data Outputs
Data Outputs
Data Outputs
Data Outputs
Output Enable
Input
Input
Input
Input
GND
Ground (0V)
VCC
Positive Supply Voltage
TRUTH TABLE
INPUTS
G
An
Yn
L
L
H
L
H
X
L
H
Z
X : Don‘t Care
Z : High Impedance
2/10
OUTPUT
74VCX16244
ABSOLUTE MAXIMUM RATINGS
Symbol
V CC
Parameter
Value
Unit
Supply Voltage
-0.5 to +4.6
V
VI
DC Input Voltage
-0.5 to +4.6
V
VO
DC Output Voltage (OFF State)
VO
DC Output Voltage (High or Low State) (note 1)
-0.5 to +4.6
V
-0.5 to VCC + 0.5
V
IIK
DC Input Diode Current
- 50
mA
IOK
DC Output Diode Current (note 2)
- 50
mA
IO
DC Output Current
± 50
mA
ICC or IGND DC VCC or Ground Current per Supply Pin
Power Dissipation
PD
Tstg
Storage Temperature
TL
Lead Temperature (10 sec)
± 100
mA
400
mW
-65 to +150
°C
300
°C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
1) IO absolute maximum rating must be observed
2) VO < GND, VO > V CC
RECOMMENDED OPERATING CONDITIONS
Symbol
Value
Unit
Supply Voltage
1.8 to 3.6
V
VI
Input Voltage
-0.3 to 3.6
V
VO
Output Voltage (OFF State)
0 to 3.6
V
VO
Output Voltage (High or Low State)
0 to VCC
V
V CC
Parameter
IOH, IOL
High or Low Level Output Current (V CC = 3.0 to 3.6V)
± 24
mA
IOH, IOL
High or Low Level Output Current (V CC = 2.3 to 2.7V)
High or Low Level Output Current (V CC = 1.8V)
± 18
mA
IOH, IOL
Top
dt/dv
Operating Temperature
Input Rise and Fall Time (note 1)
±6
mA
-55 to 125
°C
0 to 10
ns/V
1) VIN from 0.8V to 2V at VCC = 3.0V
3/10
74VCX16244
DC SPECIFICATIONS (2.7V < VCC < 3.6V unless otherwise specified)
Test Condition
Symbol
VIH
VIL
VOH
Parameter
High Level Input
Voltage
Low Level Input
Voltage
High Level Output
Voltage
Low Level Output
Voltage
Ioff
IOZ
ICC
∆ICC
4/10
Input Leakage
Current
Power Off Leakage
Current
High Impedance
Output Leakage
Current
Quiescent Supply
Current
ICC incr. per Input
Min.
Max.
2.0
-55 to 125 °C
Min.
Unit
Max.
2.0
2.7 to 3.6
V
0.8
0.8
2.7 to 3.6
I O=-100 µA
VCC-0.2
VCC-0.2
2.7
IO=-12 mA
2.2
2.2
IO=-18 mA
2.4
2.4
IO=-24 mA
2.2
V
2.2
2.7 to 3.6
IO=100 µA
0.2
0.2
2.7
IO=12 mA
0.4
0.4
IO=18 mA
0.4
0.4
IO=24 mA
0.55
0.55
2.7 to 3.6
VI = 0 to 3.6V
±5
±5
µA
0
VI or V O = 0 to 3.6V
10
10
µA
2.7 to 3.6
V I = VIH or VIL
VO = 0 to 3.6V
± 10
± 10
µA
VI = VCC or GND
VI or VO = VCC to
3.6V
VIH = VCC - 0.6V
20
20
± 20
± 20
750
750
3.0
II
-40 to 85 °C
VCC
(V)
3.0
VOL
Value
2.7 to 3.6
2.7 to 3.6
V
µA
µA
74VCX16244
DC SPECIFICATIONS (2.3V < VCC < 2.7V unless otherwise specified)
Test Condition
Symbol
VIH
VIL
VOH
Parameter
High Level Input
Voltage
Low Level Input
Voltage
High Level Output
Voltage
-40 to 85 °C
VCC
(V)
Min.
Low Level Output
Voltage
Ioff
IOZ
ICC
Input Leakage
Current
Power Off Leakage
Current
High Impedance
Output Leakage
Current
Quiescent Supply
Current
Max.
Min.
1.6
2.3 to 2.7
Unit
Max.
1.6
V
0.7
0.7
I O=-100 µA
VCC-0.2
VCC-0.2
IO=-6 mA
2.0
2.0
IO=-12 mA
1.8
1.8
IO=-18 mA
1.7
V
1.7
IO=100 µA
0.2
0.2
IO=12 mA
0.4
0.4
IO=18 mA
0.6
0.6
2.3 to 2.7
VI = 0 to 3.6V
±5
±5
µA
0
VI or V O = 0 to 3.6V
10
10
µA
2.3 to 2.7
V I = VIH or VIL
VO = 0 to 3.6V
± 10
± 10
µA
VI = VCC or GND
20
20
VI or VO = VCC to
3.6V
± 20
± 20
2.3 to 2.7
2.3
II
-55 to 125 °C
2.3 to 2.7
2.3
VOL
Value
2.3 to 2.7
V
µA
DC SPECIFICATIONS (1.8V < VCC < 2.3V unless otherwise specified)
Test Condition
Symbol
VIH
VIL
VOH
VOL
II
Ioff
IOZ
ICC
Parameter
High Level Input
Voltage
Low Level Input
Voltage
High Level Output
Voltage
Low Level Output
Voltage
Input Leakage
Current
Power Off Leakage
Current
High Impedance
Output Leakage
Current
Quiescent Supply
Current
Value
-40 to 85 °C
VCC
(V)
Min.
Max.
0.7 VCC
-55 to 125 °C
Min.
Unit
Max.
0.7 VCC
V
1.8 to 2.3
0.2 VCC
1.8
0.2 VCC
I O=-100 µA
VCC-0.2
VCC-0.2
IO=-6 mA
1.4
1.4
V
V
IO=100 µA
0.2
0.2
IO=6 mA
0.3
0.3
1.8
VI = 0 to 3.6V
±5
±5
µA
0
VI or V O = 0 to 3.6V
10
10
µA
1.8
V I = VIH or VIL
VO = 0 to 3.6V
± 10
± 10
µA
20
20
1.8
VI = VCC or GND
VI or VO = VCC to
3.6V
± 20
± 20
1.8
V
µA
5/10
74VCX16244
DYNAMIC SWITCHING CHARACTERISTICS (Ta = 25°C, Input tr = tf = 2.0ns, C L = 30pF, R L = 500Ω)
Test Condition
Symbol
VOLP
V OLV
VOHV
Parameter
Value
TA = 25 °C
VCC
(V)
Dynamic Low Voltage Quiet
Output (note 1, 3)
1.8
2.5
3.3
1.8
Dynamic Low Voltage Quiet
Output (note 1, 3)
2.5
3.3
1.8
2.5
3.3
Dynamic High Voltage Quiet
Output (note 2, 3)
Min.
Typ.
Unit
Max.
0.25
0.6
0.8
-0.25
VIL = 0V
VIH = VCC
VIL = 0V
VIH = VCC
V
-0.6
-0.8
1.5
1.9
2.2
VIL = 0V
VIH = VCC
V
V
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 (CL = 30pF, R L = 500Ω, Input tr = tf = 2.0ns)
Test Conditio n
Symbol
tPLH tPHL
t PZL tPZH
t PLZ tPHZ
Parameter
Propagation Delay
Time
Output Enable Time
Output Disable Time
tOSLH tOSHL Output To Output
Skew Time (note1, 2)
VCC
(V)
1.8
2.3 to 2.7
3.0 to 3.6
1.8
2.3 to 2.7
3.0 to 3.6
1.8
2.3 to 2.7
3.0 to 3.6
1.8
2.3 to 2.7
3.0 to 3.6
Value
-40 to 85 °C
-55 to 125 °C
Min.
Max.
Min.
Max.
1.5
1.0
0.8
1.5
1.0
0.8
1.5
1.0
0.8
5.0
3.0
2.5
6.5
4.1
3.5
5.0
3.8
3.5
0.5
0.5
0.5
1.5
1.0
0.8
1.5
1.0
0.8
1.5
1.0
0.8
6.3
4.0
3.5
7.5
5.0
4.3
6.3
4.9
4.3
0.5
0.5
0.5
Unit
ns
ns
ns
ns
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switching in the same direction, either HIGH or LOW (tOSLH = | tPLHm - tPLHn|, tOSHL = | tPHLm - tPHLn|)
2) Parameter guaranteed by design
6/10
74VCX16244
CAPACITIVE CHARACTERISTICS
Test Condition
Symbol
CIN
C OUT
CPD
Parameter
Value
TA = 25 °C
V CC
(V)
Input Capacitance
Min.
Typ.
Unit
Max.
1.8, 2.5 or 3.3
VIN = 0 or VCC
Output Capacitance
1.8, 2.5 or 3.3
VIN = 0 or VCC
7
pF
Power Dissipation Capacitance
(note 1)
1.8, 2.5 or 3.3
fIN = 10MHz
VIN = 0 or VCC
20
pF
6
pF
1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/16 (per
circuit)
TEST CIRCUIT
TEST
SWITCH
tPLH, tPHL
Open
tPZL, tPLZ (VCC = 3.0 to 3.6V)
6V
tPZL, tPLZ (VCC = 2.3 to 2.7V or 1.8V)
tPZH, tPHZ
2V CC
GND
C L = 30 pF or equivalent (includes jig and probe capacitance)
R L = R1 = 500Ω or equivalent
R T = ZOUT of pulse generator (typically 50Ω)
WAVEFORM SYMBOL VALUES
VCC
Symbol
V IH
3.0 to3.6V
2.3 to 2.7V
1.8V
2.7V
VCC
VCC
VM
1.5V
VCC/2
VCC/2
VX
VOL + 0.3V
VOL + 0.15V
VOL + 0.15V
VY
VOH - 0.3V
VOH - 0.15V
VOH - 0.15V
7/10
74VCX16244
WAVEFORM 1 : PROPAGATION DELAYS (f=1MHz; 50% duty cycle)
WAVEFORM 2 : OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle)
8/10
74VCX16244
TSSOP48 MECHANICAL DATA
mm.
inch
DIM.
MIN.
TYP
MAX.
A
MIN.
TYP.
1.1
A1
0.05
0.043
0.15
A2
MAX.
0.002
0.006
0.9
0.035
b
0.17
0.27
0.0067
0.011
c
0.09
0.20
0.0035
0.0079
D
12.4
12.6
0.408
0.496
E
7.95
8.25
0.313
0.325
E1
6.0
6.2
0.236
0.244
e
0.5 BSC
0.0197 BSC
K
0°
8°
0°
8°
L
0.50
0.75
0.020
0.030
A
A2
A1
b
K
e
L
E
c
D
E1
PIN 1 IDENTIFICATION
1
7065588A
9/10
74VCX16244
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 infringe ment of patents or other righ ts 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 pub lication are subject to change without notice. Thi s pub lication supersedes and replaces all information
previously supplied. STMicroelectronics prod ucts are not authori zed for use as critical components in life suppo rt devices or
systems without express written approval of STMicroelectronics.
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 2001 STMicroelectronics - Printed in Italy - All Rights Reserved
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