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100324 Low Power Hex TTL-to-ECL Translator
July 1988 Revised August 2000
100324 Low Power Hex TTL-to-ECL Translator
General Description
The 100324 is a hex translator, designed to convert TTL logic levels to 100K ECL logic levels. The inputs are compatible with standard or Schottky TTL. A common Enable (E), when LOW, holds all inverting outputs HIGH and holds all true outputs LOW. The differential outputs allow each circuit to be used as an inverting/non-inverting translator, or as a differential line driver. The output levels are voltage compensated over the full -4.2V to -5.7V range. When the circuit is used in the differential mode, the 100324, due to its high common mode rejection, overcomes voltage gradients between the TTL and ECL ground systems. The VEE and VTTL power may be applied in either order. The 100324 is pin and function compatible with the 100124 with similar AC performance, but features power dissipation roughly half of the 100124 to ease system cooling requirements.
Features
s Pin/function compatible with 100124 s Meets 100124 AC specifications s 50% power reduction of the 100124 s Differential outputs s 2000V ESD protection s -4.2V to -5.7V operating range s Available to MIL-STD-883 s Available to industrial grade temperature range (PLCC package only)
Ordering Code:
Order Number 100324SC 100324PC 100324QC 100324QI Package Number M24B N24E V28A V28A Package Description 28-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-010, 0.400 Wide 28-Lead Plastic Lead Chip Carrier (PLCC), JEDEC MO-047, 0.450 Square 28-Lead Plastic Lead Chip Carrier (PLCC), JEDEC MO-047, 0.450 Square Industrial Temperature Range (-40C to +85C)
Devices also available in Tape and Reel. Specify by appending the suffix letter "X" to the ordering code.
Connection Diagrams
24-Pin DIP/SOIC 28-Pin PLCC
(c) 2000 Fairchild Semiconductor Corporation
DS009878
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100324
Pin Descriptions
Pin Names D0-D5 E Q0-Q5 Q0-Q5 Description Data Inputs Enable Input Data Outputs Complementary Data Outputs
Truth Table
Inputs Dn X L H
H = HIGH Voltage Level L = LOW Voltage Level
Outputs E L H H Qn L L H Qn H H L
Logic Diagram
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100324
Absolute Maximum Ratings(Note 1)
Storage Temperature (TSTG) Maximum Junction Temperature (TJ) VEE Pin Potential to Ground Pin VTTL Pin Potential to Ground Pin Input Voltage (DC) Output Current (DC Output HIGH) ESD (Note 2)
-65C to +150C +150C -7.0V to +0.5V -0.5V to +6.0V -0.5V to +6.0V -50 mA 2000V
Recommended Operating Conditions
Case Temperature (TC) Commercial Industrial Supply Voltage (VEE) 0C to +85C
-40C to +85C -5.7V to -4.2V
Note 1: The "Absolute Maximum Ratings" are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum rating. The "Recommended Operating Conditions" table will define the conditions for actual device operation. Note 2: ESD testing conforms to MIL-STD-883, Method 3015.
Commercial Version DC Electrical Characteristics
Symbol VOH VOL VOHC VOLC VIH VIL VCD IIH Parameter Output HIGH Voltage Output LOW Voltage Output HIGH Voltage Output LOW Voltage Input HIGH Voltage Input LOW Voltage Input Clamp Diode Voltage Input HIGH Current Data Enable Input HIGH Current Breakdown Test, All Inputs IIL Input LOW Current Data Enable IEE ITTL VEE Power Supply Current VTTL Power Supply Current -0.9 -5.4 -70 -45 25 -22 38 mA mA All Inputs VIN = +4.0V All Inputs VIN = GND mA 20 120 1.0 mA VIN = +5.5V, All Other Inputs = GND VIN = +0.4V, All Other Inputs VIN = VIH A 2.0 0 -1.2
(Note 3)
Typ -955 -1705 Max -870 -1620 -1610 5.0 0.8 Units mV mV V V V VIN =VIH (Max) or VIL (Min) VIN = VIH(Min) or VIL (Max) Guaranteed HIGH Signal for All Inputs Guaranteed LOW Signal for All Inputs IIN = -18 mA VIN = +2.4V, All Other Inputs VIN = GND Conditions Loading with 50 to -2.0V Loading with 50 to -2.0V
VEE = -4.2V to -5.7V, VCC = VCCA = GND, TC = 0C to +85C, VTTL = +4.5V to +5.5V Min -1025 -1830 -1035
Note 3: The specified limits represent the "worst case" value for the parameter. Since these values normally occur at the temperature extremes, additional noise immunity and guardbanding can be achieved by decreasing the allowable system operating ranges. Conditions for testing shown in the tables are chosen to guarantee operation under "worst case" conditions.
DIP AC Electric Characteristics
VEE = -4.2V to -5.7V, VCC = VCCA = GND, VTTL = +4.5V to +5.5V TC = +25C TC = 0C Symbol Parameter Min Max Min Max tPLH tPHL tTLH tTHL Propagation Delay Data and Enable to Output Transition Time 20% to 80%, 80% to 20% 0.50 0.45 3.00 1.80 0.50 0.45 2.90 1.80 TC = +85C Min 0.50 0.45 Max 3.00 1.80 Units ns ns Conditions
Figures 2, 1
3
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100324
Commercial Version (Continued) SOIC and PLCC AC Electrical Characteristics
VEE = -4.2V to -5.7V, VCC = VCCA = GND, VTTL = +4.5V to +5.5V TC = 0C TC = +25C Symbol Parameter Min Max Min Max tPLH tPHL tTLH tTHL tOSHL Propagation Delay Data and Enable to Output Transition Time 20% to 80%, 80% to 20% Maximum Skew Common Edge Output-to-Output Variation Data to Output Path tOSLH Maximum Skew Common Edge Output-to-Output Variation Data to Output Path tOST Maximum Skew Opposite Edge Output-to-Output Variation Data to Output Path tPS Maximum Skew Pin (Signal) Transition Variation Data to Output Path
Note 4: Output-to-Output Skew is defined as the absolute value of the difference between the actual propagation delay for any outputs within the same packaged device. The specifications apply to any outputs switching in the same direction either HIGH-to-LOW (tOSHL), or LOW-to-HIGH (tOSLH), or in opposite directions both HL and LH (tOST). Parameters tOST and tPS guaranteed by design.
TC = +85C Min 0.50 0.45 Max 2.80 1.70
Units
Conditions
0.50 0.45
2.80 1.70
0.50 0.45
2.70 1.70
ns ns
Figures 2, 1
PLCC Only 0.95 0.95 0.95 ns (Note 4) PLCC Only 0.70 0.70 0.70 ns (Note 4) PLCC Only 1.60 1.60 1.60 ns (Note 4) PLCC Only 1.20 1.20 1.20 ns (Note 4)
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100324
Industrial Version DC Electrical Characteristics
(Note 5)
VEE = -4.2V to -5.7V, VCC = VCCA = GND, TC = -40C to +85C, VTTL = +4.5V to +5.5V TC = -40C TC = 0C to +85C Symbol Parameter Units Min Max Min Max VOH VOL VOHC VOLC VIH VIL VCD IIH Output HIGH Voltage Output LOW Voltage Output HIGH Voltage Output LOW Voltage Input HIGH Voltage Input LOW Voltage Input Clamp Diode Voltage Input HIGH Current Data Enable Input HIGH Current Breakdown Test, All Inputs IIL Input LOW Current Data Enable IEE ITTL VEE Power Supply Current VTTL Power Supply Current -0.9 -5.4 -70 -22 38 -0.9 -5.4 -70 -22 38 mA mA All Inputs VIN = +4.0V All Inputs VIN = GND mA 20 120 1.0 20 120 1.0 mA VIN = +5.5V, All Other Inputs = GND VIN = +0.4V, All Other Inputs VIN = VIH A 2.0 0 -1.2 -1085 -1830 -1095 -1565 5.0 0.8 2.0 0 -1.2 -870 -1575 -1025 -1830 -1035 -1610 5.0 0.8 -870 -1620 mV mV V V V or VIL (Min) VIN = VIH(Min) or VIL (Max) Guaranteed HIGH Signal for All Inputs Guaranteed LOW Signal for All Inputs IIN = -18 mA VIN = +2.4V, All Other Inputs VIN = GND
Conditions VIN =VIH (Max) Loading with 50 to -2.0V Loading with 50 to -2.0V
Note 5: The specified limits represent the "worst case" value for the parameter. Since these values normally occur at the temperature extremes, additional noise immunity and guardbanding can be achieved by decreasing the allowable system operating ranges. Conditions for testing shown in the tables are chosen to guarantee operation under "worst case" conditions.
AC Electrical Characteristics
VEE = -4.2V to -5.7V, VCC = VCCA = GND, VTTL = +4.5V to +5.5V TC = -40C TC = +25C Symbol Parameter Min Max Min Max tPLH tPHL tTLH tTHL Propagation Delay Data and Enable to Output Transition Times 20% to 80%, 80% to 20% 0.50 0.35 2.80 1.80 0.50 0.45 2.70 1.70 TC = +85C Min 0.50 0.45 Max 2.80 1.70 Units ns ns Conditions Figures 2, 1 Figures 2, 1
5
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100324
Test Circuit
Note: * * * * * * VCC, VCCA = 0V, VEE = -4.5V, VTTL = +5.0V, VIH = +3.0V L1, L2 and L3 = equal length 50 impedance lines RT = 50 terminator internal to scope Decoupling 0.1 F from GND to VCC, VEE and VTTL All unused outputs are loaded with 50 to -2V or with equivalent ECL terminator network CL = Fixture and stray capacitance 3 pF
FIGURE 1. AC Test Circuit
Switching Waveform
FIGURE 2. Propagation Delay and Transition Times
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100324
Physical Dimensions inches (millimeters) unless otherwise noted
28-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide Package Number M24B
24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-010, 0.400 Wide Package Number N24E
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100324 Low Power Hex TTL-to-ECL Translator
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
28-Lead Plastic Lead Chip Carrier (PLCC), JEDEC MO-047, 0.450 Square) Package Number V28A
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. www.fairchildsemi.com 8 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com

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