54LVTH162244 16-Bit Buffers/Drivers Datasheet

54LVTH162244 Datasheet, PDF, Equivalent


Part Number

54LVTH162244

Description

16-Bit Buffers/Drivers

Manufacture

Maxwell Technologies

Total Page 9 Pages
Datasheet
Download 54LVTH162244 Datasheet


54LVTH162244
www.DataSheet4U.com
54LVTH162244
16-Bit Buffers/Drivers with
3-State Outputs
Logic Diagram
FEATURES:
• RAD-PAK® radiation-hardened against natural space radia-
tion
• Total dose hardness:
- > 100 krad (Si), depending upon space mission
• Output ports have equivalent 22-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 high-
speed switching noise
• Flow-through architecture optimizes PCB layout
• Package: 48 pin RAD-PAK flat pack
DESCRIPTION:
Maxwell Technologies’ 54LVTH162244 devices are 16-bit buff-
ers and line drivers designed for low-voltage (3.3V) VCC oper-
ation, 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.
The outputs, which are designed to source or sink up to 12
mA, include equivalent 22-series resistors to reduce over-
shoot 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 technol-
ogy incorporates radiation shielding in the microcircuit pack-
age. 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.
1000607
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
54LVTH162244
TABLE 1. PINOUT DESCRIPTION
PIN
1, 48, 25, 24
2, 3, 5, 6
4, 10, 15, 21, 28, 34,
39, 45
7, 18, 31, 42
8, 9, 11, 12
13, 14, 16, 17
19, 20, 22, 23
47, 46, 44, 43
41, 40, 38, 37
36, 35, 33, 32
30, 29, 27, 26
SYMBOL
1OE-4OE
1Y1-1Y4
GND
DESCRIPTION
Output Enable
Output
Ground
VCC
2Y1-2Y4
3Y1-3Y4
4Y1-4Y4
1A1-1A4
2A1-2A4
3A1-3A4
4A1-4A4
Supply Voltage
Output
Output
Output
Input
Input
Input
Input
TABLE 2. 162244 ABSOLUTE MAXIMUM RATINGS 1
PARAMETER
SYMBOL
MIN
MAX
UNIT
Supply Voltage Range
Input Voltage Range 2
Voltage range applied to any output in the high-impedance or
power-off state 2
Voltage range applied to any output in the high state 2
Current into any output in the low state
Current into any output in the high state 3
Input clamp current
Output clamp current
Operating Temperature
Storage Temperature Range
Operating Temperature Range
VCC -0.5
VI -0.5
VO -0.5
VO
IO
IO
IIK (VI < 0)
IOK (VO < 0)
TA
TS
TA
-0.5 to VCC
--
30
--
--
-55
-65
-55
4.6
7
7
0.5
30
--
-50
-50
125
150
125
V
V
V
V
mA
mA
mA
mA
°C
°C
°C
1. Stresses beyond listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress rat-
ings 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.


Features www.DataSheet4U.com 16-Bit Buffers/Driv ers with 3-State Outputs 54LVTH162244 Memory Logic Diagram FEATURES: • R AD-PAK® radiation-hardened against nat ural space radiation • Total dose har dness: - > 100 krad (Si), depending upo n space mission • Output ports have e quivalent 22-Ω series resistors, so n o external resistors are required • S upport mixed-mode signal operation (5V input and output voltages with 3.3V VCC ) • Support unregulated battery opera tion down to 2.7V • Typical VOLP (Out put ground bounce) < 0.8V at VCC = 3.3V , TA = 25°C • IOFF and power-up 3-st ate support hot insertion • Bus hold on data inputs eliminates the need for external pull-up/pull-down resistors Distributed VCC and GND pin configura tion minimizes highspeed switching nois e • Flow-through architecture optimiz es PCB layout • Package: 48 pin RAD-P AK flat pack DESCRIPTION: Maxwell Tech nologies’ 54LVTH162244 devices are 16 -bit buffers and line drivers designed for low-voltage (3.3V) VCC operation, but with the c.
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