54LVTH162244 - Buffer/Driver, 16 Bit, 3.3V

54LVTH162244
16-Bit Buffers/Drivers with
3-State Outputs
Memory
Logic Diagram
FEATURES:
DESCRIPTION:
• RAD-PAK® radiation-hardened against natural space radiation
• Total dose hardness:
- > 100 krad (Si), depending upon space mission
• Output ports have equivalent 22-Ω series resistors, so no
external resistors are required
• Support mixed-mode signal operation (5V input and output
voltages with 3.3V VCC)
• Support unregulated battery operation down to 2.7V
• Typical VOLP (Output ground bounce) < 0.8V at VCC = 3.3V,
TA = 25°C
• IOFF and power-up 3-state support hot insertion
• Bus hold on data inputs eliminates the need for external
pull-up/pull-down resistors
• Distributed VCC and GND pin configuration minimizes highspeed switching noise
• Flow-through architecture optimizes PCB layout
• Package: 48 pin RAD-PAK flat pack
Maxwell Technologies’ 54LVTH162244 devices are 16-bit buffers and line drivers designed for low-voltage (3.3V) VCC operation, but with the capability to provide a TTL interface to a 5V
system environment. These devices can be used as four 4-bit
buffers, two 8-bit buffers, or one 16-bit buffer. These devices
provide true outputs and symmetrical active-low output-enable
(OE) inputs.
1000607
The outputs, which are designed to source or sink up to 12
mA, include equivalent 22-Ω series resistors to reduce overshoot and undershoot. Active bus-hold circuitry is provided to
hold unused or floating data inputs at a valid logic level.
Maxwell Technologies' patented RAD-PAK® packaging technology incorporates radiation shielding in the microcircuit package. It eliminates the need for box shielding while providing
the required radiation shielding for a lifetime in orbit or space
mission. In a GEO orbit, RAD-PAK provides greater than 100
krad (Si) radiation dose tolerance. This product is available
with screening up to Class S.
12.19.01 Rev 1
(858) 503-3300 - Fax: (858) 4503-3301 - www.maxwell.com
All data sheets are subject to change without notice
1
©2001 Maxwell Technologies.
All rights reserved.
54LVTH162244
16-Bit Buffers/Drivers with 3-State Outputs
TABLE 1. PINOUT DESCRIPTION
SYMBOL
DESCRIPTION
1, 48, 25, 24
1OE-4OE
Output Enable
2, 3, 5, 6
1Y1-1Y4
Output
4, 10, 15, 21, 28, 34,
39, 45
GND
Ground
7, 18, 31, 42
VCC
Supply Voltage
8, 9, 11, 12
2Y1-2Y4
Output
13, 14, 16, 17
3Y1-3Y4
Output
19, 20, 22, 23
4Y1-4Y4
Output
47, 46, 44, 43
1A1-1A4
Input
41, 40, 38, 37
2A1-2A4
Input
36, 35, 33, 32
3A1-3A4
Input
30, 29, 27, 26
4A1-4A4
Input
Memory
PIN
TABLE 2. 162244 ABSOLUTE MAXIMUM RATINGS 1
PARAMETER
SYMBOL
MIN
MAX
UNIT
Supply Voltage Range
VCC
-0.5
4.6
V
Input Voltage Range 2
VI
-0.5
7
V
Voltage range applied to any output in the high-impedance or
power-off state 2
VO
-0.5
7
V
Voltage range applied to any output in the high state 2
VO
-0.5 to VCC
0.5
V
Current into any output in the low state
IO
--
30
mA
IO
30
--
mA
IIK (VI < 0)
--
-50
mA
IOK (VO < 0)
--
-50
mA
Operating Temperature
TA
-55
125
°C
Storage Temperature Range
TS
-65
150
°C
Operating Temperature Range
TA
-55
125
°C
Current into any output in the high state
3
Input clamp current
Output clamp current
1. Stresses beyond listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under “recommended
operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device
reliability.
2. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
3. This current flows only when the output is in the high state and VO > VCC.
1000607
12.19.01 Rev 1
All data sheets are subject to change without notice
2
©2001 Maxwell Technologies.
All rights reserved.
54LVTH162244
16-Bit Buffers/Drivers with 3-State Outputs
TABLE 3. DELTA LIMITS
PARAMETER
VARIATION
ICC(OP)
±10% of specified value on Table 5
IOZH
±10% of specified value on Table 5
IOZL
±10% of specified value on Table 5
TABLE 4. 162244 RECOMMENDED OPERATING CONDITIONS1
MIN
MAX
UNIT
Supply Voltage
VCC
2.7
3.6
V
High-level Input Voltage
VIH
2
--
V
Low-level Input Voltage
VIL
--
0.8
V
Input Voltage
VI
--
5.5
V
High-level output current
IOH
--
-12
mA
Low-level output current
IOL
--
12
mA
∆t/∆v
--
10
ns/V
∆t/∆VCC
200
--
µs/V
TA
-55
125
°C
Input Transition Rise or Fall Rate
Outputs
enabled
Power-up ramp rate
Operating Temperature
Memory
SYMBOL
PARAMETER
1. All unused control inputs of the device must be held at high or low to ensure proper device operation.
TABLE 5. 162244 DC ELECTRICAL CHARACTERISTICS
(VCC = 3.3V ±10%, TA = -55 TO +125°C, UNLESS OTHERWISE SPECIFIED)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
UNIT
Input Clamp Voltage
VIK
VCC = 2.7
II = -18mA
--
-1.2
V
High-Level Output Voltage
VOH
VCC = 3V
IOH = -12 mA
2
--
V
Low-Level Output Voltage
VOL
VCC = 3V
IOL = 12 mA
--
0.8
V
VI = 5.5V
--
10
µA
Input Current
II
VCC = 0 or 3.6V
VCC = 3.6V
VI = VCC or
GND
Control inputs
--
±1
VCC = 3.6V
VI = VCC
Data Inputs
--
1
--
-5
75
--
-75
--
--
5
VI = 0
Hold Current
II(HOLD) VCC = 3V
VI = 0.8V
VI = 2V
Output Disabled Leakage
Current - High
1000607
IOZH
VCC = 3.6V, VO = 3V
12.19.01 Rev 1
Data Inputs
µA
µA
All data sheets are subject to change without notice
3
©2001 Maxwell Technologies.
All rights reserved.
54LVTH162244
16-Bit Buffers/Drivers with 3-State Outputs
TABLE 5. 162244 DC ELECTRICAL CHARACTERISTICS
(VCC = 3.3V ±10%, TA = -55 TO +125°C, UNLESS OTHERWISE SPECIFIED)
PARAMETER
SYMBOL
Output Disabled Leakage
Current - Low
IOZL
TEST CONDITIONS
VCC = 3.6V, VO = 0.5V
MIN
MAX
UNIT
--
-5
µA
Power Up Current
IOZPU2
VCC = 0 to 1.5V, VO = 0.5V to 3V, OE = don’t care
--
±100
µA
Power Down Current
IOZPD2
VCC = 1.5V to 0, VO = 0.5V to 3V, OE = don’t care
--
±100
µA
mA
Supply Current
ICC
VCC = 3.6V
Outputs high
--
0.19
IO = 0
Outputs low
--
5
Outputs disabled
--
0.19
∆ICC 1 VCC = 3V to 3.6V, One input at VCC -0.6V, Other inputs
--
0.2
mA
VI = VCC or GND
Delta Supply Current
at VCC or GND
Input Capacitance
CI 2
VI = 3V or 0
--
8
pF
Input Output Capacitance
CO
VO = 3V or 0
--
15
pF
2
Memory
1. This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.
2. Guaranteed by design.
TABLE 6. 162244 AC ELECTRICAL CHARACTERISTICS
(TA = -55 TO +125°C, CL = 50 PF, UNLESS OTHERWISE SPECIFIED)
PARAMETER
VCC = 3.3V ±V
SYMBOL
VCC = 2.7V
UNIT
MIN
MAX
MIN
MAX
Propogation Delay Time
A to Y
tPLH
1.1
4.6
--
5.1
tPHL
1.1
3.9
--
4.5
Output Enable Time
OE to Y
tPZH
1.1
5.4
--
6.7
tPZL
1.3
4.9
--
6.1
Output Disable Time
OE to Y
tPHZ
1.6
5.9
--
6.5
tPLZ
1
5.9
--
5.8
Output Skew
tsk(o)
--
--
--
--
1000607
12.19.01 Rev 1
ns
ns
ns
ns
All data sheets are subject to change without notice
4
©2001 Maxwell Technologies.
All rights reserved.
54LVTH162244
16-Bit Buffers/Drivers with 3-State Outputs
TABLE 7. FUNCTION TABLE
(EACH 4-BIT BUFFER)
INPUTS
OUTPUT
OE
A
Y
L
H
H
L
L
L
H
X
Z
FIGURE 1. LOAD CIRCUIT FOR OUTPUTS
Memory
Figure Note:
1. CL includes probe and jog capacitance
.
PARAMETER MEASUREMENT INFORMATION
TEST
S1
tPLH/tPHL
Open
tPLZ/tPZL
6V
tPHZ/tPZH
GND
FIGURE 2. PULSE DURATION
1000607
12.19.01 Rev 1
All data sheets are subject to change without notice
5
©2001 Maxwell Technologies.
All rights reserved.
54LVTH162244
16-Bit Buffers/Drivers with 3-State Outputs
FIGURE 3. SETUP AND HOLD TIMES
FIGURE 4. PROPAGATION DELAY TIMES INVERTING AND NON-INVERTING OUTPUTS
Memory
FIGURE 5. OUTPUT ENABLE TIMING
Figure Notes:
2. All input pulses are supplied by generators having the following characteristics: PRR < 10 MHz, ZO = 50 Ω, tr < 2.5 ns, tf < 2.5
ns.
3. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
4. The outputs are measured one at a time with one transition per measurement.
1000607
12.19.01 Rev 1
All data sheets are subject to change without notice
6
©2001 Maxwell Technologies.
All rights reserved.
54LVTH162244
16-Bit Buffers/Drivers with 3-State Outputs
Memory
48 PIN RAD-PAK® FLAT PACKAGE
SYMBOL
DIMENSION
MIN
NOM
MAX
A
0.121
0.130
0.139
b
0.008
0.010
0.014
c
0.004
0.006
0.006
D
--
0.620
0.640
E
0.370
0.380
0.390
E1
--
--
0.410
E2
0.200
0.210
0.220
E3
0.075
0.085
--
e
0.025 BSC
L
0.275
0.285
0.295
Q
0.000
0.019
0.045
S1
0.005
0.018
--
N
48
F48-01
Note: All dimensions in inches
1000607
12.19.01 Rev 1
All data sheets are subject to change without notice
7
©2001 Maxwell Technologies.
All rights reserved.
16-Bit Buffers/Drivers with 3-State Outputs
54LVTH162244
Important Notice:
These data sheets are created using the chip manufacturer’s published specifications. Maxwell Technologies verifies
functionality by testing key parameters either by 100% testing, sample testing or characterization.
The specifications presented within these data sheets represent the latest and most accurate information available to
date. However, these specifications are subject to change without notice and Maxwell Technologies assumes no
responsibility for the use of this information.
Maxwell Technologies’ products are not authorized for use as critical components in life support devices or systems
without express written approval from Maxwell Technologies.
Any claim against Maxwell Technologies must be made within 90 days from the date of shipment from Maxwell Technologies. Maxwell Technologies’ liability shall be limited to replacement of defective parts.
Memory
1000607
12.19.01 Rev 1
All data sheets are subject to change without notice
8
©2001 Maxwell Technologies.
All rights reserved.
54LVTH162244
16-Bit Buffers/Drivers with 3-State Outputs
Product Ordering Options
Model Number
54LVTH162244 RP
X
Option Details
Feature
Screening Flow
Monolithic
S = Maxwell Class S
B = Maxwell Class B
E = Engineering (testing @ +25°C)
I = Industrial (testing @ -55°C,
+25°C, +125°C)
Package
F = Flat Pack
Radiation Feature
RP = RAD-PAK® package
Base Product
Nomenclature
16-Bit Buffers/Drivers with 3-State
Outputs
12.19.01 Rev 1
All data sheets are subject to change without notice
Memory
1000607
F
9
©2001 Maxwell Technologies.
All rights reserved.
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