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| 100370 Low Power Universal Demultiplexer/Decoder February 1990 Revised August 2000 100370 Low Power Universal Demultiplexer/Decoder General Description The 100370 universal demultiplexer/decoder functions as either a dual 1-of-4 decoder or as a single 1-of-8 decoder, depending on the signal applied to the Mode Control (M) input. In the dual mode, each half has a pair of active-LOW Enable (E) inputs. Pin assignments for the E inputs are such that in the 1-of-8 mode they can easily be tied together in pairs to provide two active-LOW enables (E1a to E1b, E2a to E2b). Signals applied to auxiliary inputs Ha, Hb and Hc determine whether the outputs are active HIGH or active LOW. In the dual 1-of-4 mode the Address inputs are A0a, A1a and A0b, A1b with A2a unused (i.e., left open, tied to VEE or with LOW signal applied). In the 1-of-8 mode, the Address inputs are A0a, A1a, A2a with A0b and A1b LOW or OPEN. All inputs have 50 k pull-down resistors. Features s 35% power reduction of the 100170 s 2000V ESD protection s Pin/function compatible with 100170 s Voltage compensated operating range = -4.2V to -5.7V Ordering Code: Order Number 100370PC 100370QC 100370QI Package Number N24E V28A V28A Package Description 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 28-Pin PLCC (c) 2000 Fairchild Semiconductor Corporation DS010649 www.fairchildsemi.com 100370 Logic Symbols Single 1-of 8 Application Pin Descriptions Pin Names Ana, Anb Ena, Enb M Ha Hb Hc Z0-Z7 Zna, Znb Description Address Inputs Enable Inputs Mode Control Input Z0-Z3 (Z0a-Z3a) Polarity Select Input Z4-Z7 (Z0b-Z3b) Polarity Select Input Common Polarity Select Input Single 1-of-8 Data Outputs Dual 1-of-4 Data Outputs Dual 1-of-4 Application- Truth Tables Dual 1-of-4 Mode (M = A2a = Hc = LOW) Inputs Active HIGH Outputs Active LOW Outputs (Ha and Hb Inputs HIGH) (Ha and Hb Inputs LOW) E1a E1b H X L L L L E2a E2b X H L L L L A1a A1b X X L L H H A0a A0b X X L H L H Z0a Z0b L L H L L L Z1a Z1b L L L H L L Z2a Z2b L L L L H L Z3a Z3b L L L L L H Z0a Z0b H H L H H H Z1a Z1b H H H L H H Z2a Z2b H H H H L H Z3a Z3b H H H H H L Single 1-of-8 Mode (M = HIGH; A0b = A1b = Ha = Hb = LOW) Inputs Active HIGH Outputs (Note 1) (Hc Input HIGH) E1 H X L L L L L L L L H = HIGH Voltage Level E2 X H L L L L L L L L A2a X X L L L L H H H H A1a X X L L H H L L H H A0a X X L H L H L H L H Z0 L L H L L L L L L L Z1 L L L H L L L L L L Z2 L L L L H L L L L L Z3 L L L L L H L L L L Z4 L L L L L L H L L L Z5 L L L L L L L H L L Z6 L L L L L L L L H L Z7 L L L L L L L L L H L = LOW Voltage Level X = Don't Care E1 = E1a and E1b wired; E2 = E22a and E2b wired Note 1: for Hc = LOW, output states are complemented www.fairchildsemi.com 2 100370 Logic Diagram (Zn) for 1-of-4 applications. 3 www.fairchildsemi.com 100370 Absolute Maximum Ratings(Note 2) Storage Temperature (TSTG) Maximum Junction Temperature (TJ) VEE Pin Potential to Ground Pin Input Voltage (DC) Output Current (DC Output HIGH) ESD (Note 3) -65C to +150C +150C -7.0V to +0.5V VEE to +0.5V Recommended Operating Conditions Case Temperature (TC) Commercial Industrial Supply Voltage (VEE) 0C to +85C -40C to +85C -5.7V to -4.2V -50 mA 2000V Note 2: 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 3: ESD testing conforms to MIL-STD-883, Method 3015. Commercial Version DC Electrical Characteristics (Note 4) VEE = -4.2V to -5.7V, VCC = VCCA = GND, TC = 0C to +85C Symbol Parameter Min Typ VOH VOL VOHC VOLC VIH VIL IIL IIH IEE Output HIGH Voltage Output LOW Voltage Output HIGH Voltage Output LOW Voltage Input HIGH Voltage Input LOW Voltage Input LOW Current Input HIGH Current Power Supply Current -95 -1165 -1830 0.50 240 -50 -1025 -1830 -1035 -1610 -870 -1475 -955 -1705 Max -870 -1620 Units mV mV mV mV mV mV A A mA VIN = VIH (Max) or VIL (Min) VIN = VIH (Min) or VIL (Max) Conditions Loading with 50 to -2.0V Loading with 50 to -2.0V Guaranteed HIGH Signal for All Inputs Guaranteed LOW Signal for All Inputs VIN = VIL (Min) VIN = VIH (Max) Inputs OPEN Note 4: 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 Symbol tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tTLH tTHL Parameter Propagation Delay Ena, Enb to Output Propagation Delay Ana, Anb to Output Propagation Delay Ha, Hb, Hc to Output Propagation Delay M to Output Transition Time 20% to 80%, 80% to 20% TC = 0C Min 0.75 0.75 0.75 1.10 0.40 Max 1.85 2.20 2.20 2.70 1.30 TC = +25C Min 0.75 0.75 0.75 1.10 0.40 Max 1.85 2.20 2.20 2.70 1.30 TC = +85C Min 0.85 0.75 0.75 1.10 0.40 Max 2.05 2.30 2.20 3.00 1.30 Units ns ns ns ns ns Figures 1, 2 Conditions www.fairchildsemi.com 4 100370 Commercial Version (Continued) PLCC AC Electrical Characteristics VEE = -4.2V to -5.7V, VCC = VCCA = GND Symbol tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tTLH tTHL Parameter Propagation Delay Ena, Enb to Output Propagation Delay Ana, Anb to Output Propagation Delay Ha, Hb, Hc to Output Propagation Delay M to Output Transition Time 20% to 80%, 80% to 20% TC = 0C Min 0.75 0.75 0.75 1.10 0.40 Max 1.65 2.00 2.00 2.50 1.20 TC = +25C Min 0.75 0.75 0.75 1.10 0.40 Max 1.65 2.00 2.00 2.50 1.20 TC = +85C Min 0.85 0.75 0.75 1.10 0.40 Max 1.85 2.10 2.00 2.80 1.20 ns ns ns ns ns Figures 1, 2 Units Conditions Industrial Version PLCC DC Electrical Characteristics (Note 5) VEE = -4.2V to -5.7V, VCC = VCCA = GND, TC = -40C to +85C TC = -40C Symbol Parameter Min Typ VOH VOL VOHC VOLC VIH VIL IIL IIH IEE Output HIGH Voltage Output LOW Voltage Output HIGH Voltage Output LOW Voltage Input HIGH Voltage Input LOW Voltage Input LOW Current Input HIGH Current Power Supply Current -95 -1170 -1830 0.50 300 -50 -95 -1085 -1830 -1095 -1565 -870 -1480 -1165 -1830 0.50 240 -50 -870 -1575 TC = 0C to +85C Min -1025 -1830 -1035 -1610 -870 -1475 Max -870 -1620 Units mV mV mV mV mV mV A A mA Conditions VIN = VIH (Max) or VIL (Min) VIN = VIH (Min) or VIL (Max) for All Inputs Guaranteed LOW Signal for All Inputs VIN = VIL (Min) VIN = VIH (Max) Inputs OPEN Loading with 50 to -2.0V Loading with 50 to -2.0V Guaranteed HIGH Signal 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. PLCC AC Electrical Characteristics VEE = -4.2V to -5.7V, VCC = VCCA = GND Symbol tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tTLH tTHL Parameter Propagation Delay Ena, Enb to Output Propagation Delay Ana, Anb to Output Propagation Delay Ha, Hb, Hc to Output Propagation Delay M to Output Transition Time 20% to 80%, 80% to 20% TC = -40C Min 0.75 0.65 0.70 1.10 0.40 Max 1.65 2.00 2.00 2.50 1.30 TC = +25C Min 0.75 0.75 0.75 1.10 0.40 Max 1.65 2.00 2.00 2.50 1.20 TC = +85C Min 0.85 0.75 0.75 1.10 0.40 Max 1.85 2.10 2.00 2.80 1.20 Units ns ns ns ns ns Figures 1, 2 Conditions 5 www.fairchildsemi.com 100370 Test Circuit Notes: VCC, VCCA = +2V, VEE = -2.5V L1 and L2 = equal length 50 impedance lines RT = 50 terminator internal to scope Decoupling 0.1 F from GND to VCC and VEE All unused outputs are loaded with 50 to GND CL = Fixture and stray capacitance 3 pF FIGURE 1. AC Test Circuit Switching Waveforms FIGURE 2. Propagation Delay and Transition Times www.fairchildsemi.com 6 100370 Physical Dimensions inches (millimeters) unless otherwise noted 24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-010, 0.400 Wide Package Number N24E 7 www.fairchildsemi.com 100370 Low Power Universal Demultiplexer/Decoder 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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