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TTL (74xx) True
TTL
74L......................Low power
74S......................Schottky
74H......................High speed
74LS....................Low power - Schottky
74AS...................Advanced - Schottky
74ALS.................Advanced - Low power - Schottky
74F(AST).............Fast - (Advanced - Schottky)
74C......................CMOS.......check Vcc level
74HC (U).............High speed - CMOS (Unbuffered
output)
74HCT.................High speed - CMOS - TTL inputs
74AHC.................Advanced - High speed - CMOS
74AHCT..............Advanced - High speed - CMOS - TTL
inputs
74FCT (-A,T,AT).Fast - CMOS - TTL inputs (speed
variations)
74AC....................Advanced - CMOS
74ACT.................Advanced - CMOS - TTL inputs
74FACT................AC, ACT (Q) series
74ACQ.................Advanced - CMOS - Quiet outputs
74ACTQ...............Advanced - CMOS - TTL inputs - Quiet
outputs
74AVC...................Advanced very low voltage CMOS
74AUC...................Advanced ultra-low voltage CMOS
74AUP...................Advanced ultra-low power
Bus Driver
Families
74ABT.................Advanced - BiCMOS - Technology
74ABTE...............ABT - Enhanced Transceiver Logic
74ABTH..............Advanced - BiCMOS - Technology - bus
Hold
74BCT.................BiCMOS - TTL inputs
74BTL.................Backplane - Transceiver - Logic
(BiCMOS)
74CBT.................Cross Bar Technology
74CBTLV............CBT Low Voltage
74CBTK..............CBT - Active Clamp
74FB....................Futurebus+
74GTL.................Gunning - Transceiver - Logic [200MHz,
Point-to-Point]
74GTLP...............GTL - Plus [120MHz, Multi-Point,
Backplane]
74SSTV................Series Stub Terminated Logic
74TVC.................Translation voltage clamp
Low Voltage
Families
74ALB.................Advanced - Low Voltage - BiCMOS
74LV (U)..............Low - Voltage (Unbuffered output)
(CMOS)
74LVC (R) (U).....LV - CMOS (damping Resistor)(Unbuffered
output)
74LVCH..............Low - Voltage - CMOS - bus Hold
74ALVC...............Advanced - Low - Voltage - CMOS
74LVT (R) (U)......LV - TTL (damping Resistor(Unbuffered
output) (BiCMOS)
74LVTZ................Low - Voltage - TTL - High Impedance
power-up
74ALVC (R).........ALV - CMOS (bus Hold) (damping
Resistor)
74ALVCH.............Advanced - Low - Voltage - CMOS - bus
Hold
74LCX..................LV - CMOS (operates with 3v and 5v
supplies)
74VCX..................LV - CMOS (operates with 1.8v and
3.6v supplies
74CBTLV.............CBT - Low Voltage
4000.................True CMOS (non-TTL
levels)
ECL Device
Families:
MECL I.................8nS*
MECL II................2nS*
MECL III...............(16XX) 1nS* .......* = Rise &
Fall Time
101xx.....................100 series 10K ECL, 3.5nS*
102xx.....................200 series 10K ECL, 2.5nS*
108xx.....................800 series 10K ECL, voltage
compensated, 3.5nS*
10Hxxx..................10K - High speed, voltage
compensated, 1.8nS*
10Exxx..................10K - ECLinPS, voltage compensated,
800pS*
10EPxxx................10K - ECLinPS Plus, voltage
compensated, 160pS*
10ELxxx................10K - ECLinPS Lite, Single gate,
voltage compensated, 275pS*
100xxx...................100K, temperature compensated
100Hxxx................100K - High speed, temperature
compensated
100Exxx.................100K - ECLinPS, temp, voltage comp.,
800pS*
High Speed Differential Signaling
Families:
ECL.................See above
PECL.................Positive ECL, uses +5volts as Vcc; See
above
LVPECL............Low Voltage PECL, uses +3.3volts as Vcc;
See above
LVDS.................Low Voltage Differential Signaling,
400mV differential signal swing
CML.................Common Model Logic, 800mV differential
signal swing
PCML.................Pseudo Common Model Logic, 200mV
differential signal swing
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