QUALITY SEMICONDUCTOR, INC. High-Speed CMOS 8-Bit Interface Latch

The Datasheet Archive - 100 Million Datasheets from 7500 Manufacturers.

QUALITY SEMICONDUCTOR, INC. High-Speed CMOS 8-Bit Interface Latch

Datasheet Thumbnail

Top Searches for this datasheet

QS54/74FCT543T, 2543T
QUALITY SEMICONDUCTOR, INC.
High-Speed CMOS 8-Bit Interface Latch Transceivers
DESCRIPTION
QS54/74FCT543T QS54/74FCT2543T
function compatible 74F543 74FCT543 74FCT543T Industrial temperature -40°C 85°C CMOS power levels: <7.5mW static Available DIP, SOIC, QSOP, ZIP, HQSOP Undershoot clamp diodes inputs TTL-compatible input output levels Ground bounce controlled outputs Reduced output swing 0-3.5V Military product compliant MIL-STD-883, Class FCT-T 543T JEDEC-FCT spec compatible speed grades with 4.6ns 64mA Ind., 48mA Mil. FCT-T 2543T Built-in series resistor outputs reduce reflection other system noise speed grades with 4.6ns 12mA
QSFCT543T QSFCT2543T 8-bit highspeed CMOS TTL-compatible latched transceivers with three-state outputs that ideal driving high capacitance loads such memory address buses. 2543 devices resistor output versions useful driving transmission lines reducing system noise. 2543 series parts replace series reduce noise existing design. inputs have clamp diodes undershoot noise suppression. outputs have ground bounce suppression (see Application Note AN-001), outputs will load active when removed from device.
Figure Functional Block Diagram
(FCT2543 Only)
OEBA CEBA LATCH
LEAB CEAB
LEBA
LATCH OEAB
(FCT2543 Only)
MDSL-00021-04 DECEMBER 1998
QUALITY SEMICONDUCTOR, INC.
QS54/74FCT543T, 2543T Figure Configurations (All Pins View)
PDIP, SOIC, QSOP, HQSOP
LEBA OEBA CEAB
CEBA LEAB OEAB
LEBA CEAB OEAB CEBA
OEBA LEAB
Table Description
Name A7-A0 B7-B0 CEAB CEBA LEAB LEBA OEAB OEBA Description Chip Select, Chip Select, Latch Enable, Latch Enable, Output Enable, Output Enable,
Table Function Table QSFCT543T, 2543T
Inputs Outputs CEAB CEBA LEAB LEBA OEAB OEBA A7-A0 B7-B0 Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z
Function Disabled, Hold Disabled Hold Latch Transparent Latch Transparent Hold Previous Data Hold Previous Data
Change
QUALITY SEMICONDUCTOR, INC.
MDSL-00021-04 DECEMBER 1998
QS54/74FCT543T, 2543T Table Absolute Maximum Ratings
Supply Voltage Ground -0.5V 7.0V Output Voltage VOUT -0.5V 7.0V Input Voltage -0.5V 7.0V Input Voltage (for pulse width 20ns) -3.0V Input Diode Current with -20mA Output Diode Current with VOUT -50mA Output Current Max. Sink Current/Pin 120mA Maximum Power Dissipation watts TSTG Storage Temperature -65° 150°C
Note: Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS cause permanent damage devices that result functional reliability type failures.
Table Capacitance(1)
25°C, 1MHz, VOUT Pins(2) 1-11, 13-23 SOIC QSOP PDIP
Notes: Capacitance characterized tested. reference 24-pin package.
Unit
Table Power Supply Characteristics
Symbol
Parameter
Test Conditions(1) Max., freq 0.2V VCC-0.2V Max., 3.4V, freq 0(2) Max., Outputs Open Enabled Toggling Duty Cycle Other Inputs VCC(3,4)
0.25
Unit
Quiescent Power Supply Current Supply Current Input HIGH Supply Current Input
QCCD
Notes: conditions shown Min. Max., appropriate values specified under specifications. driven input (VIN 3.4V). flip-flops, QCCD measured switching data input pins that output changes every clock cycle. This measurement device power consumption only does include power drive load capacitance tester capacitance. This parameter guaranteed design tested. computed using above parameters explained Technical Overview section.
MDSL-00021-04 DECEMBER 1998
QUALITY SEMICONDUCTOR, INC.
QS54/74FCT543T, 2543T Table Electrical Characteristics Over Operating Range
Industrial -40°C 85°C, 5.0V Symbol ROUT Parameter Input HIGH Voltage Input Voltage Input Hysteresis Input Current Input HIGH Off-State Output Current (Hi-Z) Short Circuit Current (FCT543) Current Drive (FCT2543 Input Clamp Voltage Output HIGH Voltage Output Voltage (FCT543) Output Voltage (FCT2543 Test Conditions Logic HIGH Inputs Logic Inputs VTLH VTHL Inputs Max., Max., Max., VOUT GND(2,3) Min., VOUT 2.0V(3) Min., -18mA, 25°C(3) Min., Min., Min., Min., -12mA (MIL) -15mA (IND) 48mA (MIL) 64mA (IND) 12mA (MIL) 12mA (IND) 12mA (MIL) 12mA (IND) Military -55°C 125°C, 5.0V ±10% Typ(1) -0.7 -1.2 Unit
0.55 0.55 0.50 0.50
Notes: Typical values indicate 5.0V 25°C. more than output should shorted duration second. These parameters guaranteed design tested.
Output Resistance (FCT2543
QUALITY SEMICONDUCTOR, INC.
MDSL-00021-04 DECEMBER 1998
QS54/74FCT543T, 2543T Table Switching Characteristics Over Operating Range
Industrial -40°C 85°C, 5.0V CLOAD 50pF, RLOAD unless otherwise noted. Military -55°C 125°C, 5.0V ±10%
543A 2543A Symbol tPHLB tPLHB tPHLL tPLHL tPZH tPZL tPLZ tPHZ Description(1) Delay (Transparent) Latch Enable Data Delay Output Enable Time Output Disable Time(2) Setup Time Hold Time Pulse Width
543C 2543C
543D 2543D Unit
Notes: Minimums guaranteed tested parameters except This parameter guaranteed design tested. Test Circuit Waveforms.
MDSL-00021-04 DECEMBER 1998
QUALITY SEMICONDUCTOR, INC.

QUALITY SEMICONDUCTOR, INC. High-Speed CMOS 8-Bit Interface Latch

Top Searches for this datasheet

Other recent searches