OCTAL TRANSCEIVER WITH 3-STATE OUTPUT 54LVT245RP 54LVT245RP

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OCTAL TRANSCEIVER WITH 3-STATE OUTPUT 54LVT245RP 54LVT245RP

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SPACE PRODUCTS
OCTAL TRANSCEIVER WITH 3-STATE OUTPUT
54LVT245RP
54LVT245RP
Memory
FEATURES:
3.3V octal transceiver with 3-state outputs RAD-PAK® radiation hardened against natural space radiation Total dose hardness >100 krad (Si); dependent upon orbit Package: RAD-PAK® flat package RAD-PAK® Operating temperature range: Supports mixed-mode signal operation input output voltages with 3.3V Supports unregulated battery operation down 2.7V. Typical VOLP (output ground bounce) 0.8V VCC=3.3V, TA=25 Latch-up performance exceeds 500mA JEDEC standard Supports live insertion Bus-hold data inputs eliminate need external pullup resistors
DESCRIPTION:
Space Electronics' 54LVT245RP RAD-PAK®) 8-bit octal transceiver micro-circuit features minimum kilorad (Si) total dose tolerance; dependent upon orbit. 54LVT245RP designed specifically voltage (3.3V) operation, with capability provide interface system environment. designed asynchronous communication between data buses. device transmits data from from depending upon logic level direction control (DIR) input. output enable (OE) input used disable device buses effectively isolated. 54LVT245RP active bus-hold circuitry provided prevent floating data inputs valid logic level eliminate need external pullup resistors. 54LVT245RP total dose survivability krad (Si); dependent upon orbit. This product available with packaging screening Class
0115.99Rev0
data sheets subject change without notice
(619) 452-4167 Fax: (619) 452-5499 www.spaceelectronics.com
©1999 Space Electronics Inc. rights reserved.
54LVT245RP
OCTAL TRANSCEIVER WITH 3-STATE OUTPUT
TABLE 54LVT245RP ABSOLUTE MAXIMUM RATINGS
PARAMETER Supply Voltage Range Input Voltage Range Voltage Range Applied Output High State Power-Off State Current Into Output High State Input Clamp Current Output Clamp Current Maximum Power Dissipation Storage Temperature Range
SYMBOL TSTG
-0.5 -0.5 -0.5
UNIT
Stresses beyond those listed under "absolute maximum ratings" cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those indicated under "recommended operating conditions" implied. Exposure absolute-maximumrated conditions extended periods affect device reliability. input output negative-voltage ratings exceeded input output clamp-current ratings observed.
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This current flows only when output high state VCC.
TABLE 54LVT245RP RECOMMENDED OPERATING CONDITIONS
PARAMETER Supply Voltage High-level Input Voltage Low-level Input Voltage Input Voltage High-level Output Current Low-level Output Current Input Transition Rise Fall Rate Operating Temperature Unused control inputs must held high prevent them from floating. Outputs enabled SYMBOL -0.8 UNIT ns/V
0115.99Rev0
data sheets subject change without notice
©1999 Space Electronics Inc. rights reserved.
54LVT245RP
OCTAL TRANSCEIVER WITH 3-STATE OUTPUT
TABLE 54LVT245RP ELECTRICAL CHARACTERISTICS
PARAMETER
TEST CONDITIONS 2.7, -18mA -100µA 2.7V, -8mA -24mA -32mA 100µA 24mA 16mA 32mA 48mA
-VCC -0.2 0.8V ports ports -Outputs high Outputs Outputs disabled
-0.13 0.13 -4.0
-1.2 -0.2 0.55 0.39 0.39
UNIT
2.7V
3.6V, 5.5V 3.6V
Control inputs
Memory
II(HOLD) IOZH IOZL
3.6V, 3.6V, 0.5V 3.6V,
0.8V
CI/O
3.6V, input -0.6V, Other inputs
typical values 3.3V, conditions shown MAX, appropriate value specified under recommended operating conditions. Unused terminals GND. This increase supply current each input that specified voltage level rather than GND.
0115.99Rev0
data sheets subject change without notice
©1999 Space Electronics Inc. rights reserved.
54LVT245RP
OCTAL TRANSCEIVER WITH 3-STATE OUTPUT
TABLE 54LVT245RP SWITCHING CHARACTERISTICS
50pF, UNLESS OTHERWISE NOTED)
PARAMETER
FROM (INPUT)
(OUTPUT)
3.3V 0.3V
2.7V
UNIT
tPLH tPHL tPZH tPZL tPHZ tPLZ
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FIGURE LOAD CIRCUIT OUTPUTS
FIGURE VOLTAGE WAVEFORMS PULSE DURATION
0115.99Rev0
data sheets subject change without notice
©1999 Space Electronics Inc. rights reserved.
54LVT245RP
OCTAL TRANSCEIVER WITH 3-STATE OUTPUT
Memory
FIGURE VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES INVERTING NONINVERTING OUTPUTS
FIGURE VOLTAGE SETUP HOLD TIMES
0115.99Rev0
data sheets subject change without notice
©1999 Space Electronics Inc. rights reserved.
54LVT245RP
OCTAL TRANSCEIVER WITH 3-STATE OUTPUT
Memory
FIGURE VOLTAGE
PARAMETER MEASUREMENT INFORMATION
TEST TPLH/TPHL TPLZ/TPZL TPHZ/TPZH Figure Notes: includes probe capacitance. input pulses supplied generators having following characteristics: MHz, 2.5ns, 2.5ns. Waveform output with internal conditions such that output except when disabled output control. Waveform output with internal conditions such that output high except when disabled output control. outputs measured time with transition measurement. Open
0115.99Rev0
data sheets subject change without notice
©1999 Space Electronics Inc. rights reserved.

OCTAL TRANSCEIVER WITH 3-STATE OUTPUT 54LVT245RP 54LVT245RP

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