NA556, NE556, SA556, SE556 DUAL PRECISION TIMERS www.ti.com FEATURES • • • • • Two Precision Timing Circuits Per Package Astable or Monostable Operation TTL-Compatible Output Can Sink or Source up to 150 mA Active Pullup or Pulldown Designed to Be Interchangeable With Signetics NE556, SA556, and SE556 APPLICATIONS • • • • • • • • • • • • Precision Timers From Microseconds to Hours Pulse-Shaping Circuits Missing-Pulse Detectors Tone-Burst Generators Pulse-Width Modulators Pulse-Position Modulators Sequential Timers Pulse Generators Frequency Dividers Application Timers Industrial Controls Touch-Tone Encoders SLFS023G – APRIL 1978 – REVISED JUNE 2006 NA556...D OR N PACKAGE NE556...D, N, OR NS PACKAGE SA556...D OR N PACKAGE SE556...J PACKAGE (TOP VIEW) 1DISCH 1THRES 1CONT 1RESET 1OUT 1TRIG GND 1 14 2 13 3 12 4 11 5 10 6 7 9 8 VCC 2DISCH 2THRES 2CONT 2RESET 2OUT 2TRIG DESCRIPTION/ORDERING INFORMATION These devices provide two independent timing circuits of the NA555, NE555, SA555, or SE555 type in each package. These circuits can be operated in the astable or the monostable mode with external resistor-capacitor (RC) timing control. The basic timing provided by the RC time constant can be controlled actively by modulating the bias of the control-voltage input. The threshold (THRES) and trigger (TRIG) levels normally are two-thirds and one-third, respectively, of VCC. These levels can be altered by using the control voltage (CONT) terminal. When the trigger input falls below trigger level, the flip-flop is set and the output goes high. If the trigger input is above the trigger level and the threshold input is above the threshold level, the flip-flop is reset, and the output is low. The reset (RESET) input can override all other inputs and can be used to initiate a new timing cycle. When RESET goes low, the flip-flop is reset and the output goes low. When the output is low, a low-impedance path is provided between the discharge (DISCH) terminal and ground (GND). Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 1978–2006, Texas Instruments Incorporated On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters. NA556, NE556, SA556, SE556 DUAL PRECISION TIMERS www.ti.com SLFS023G – APRIL 1978 – REVISED JUNE 2006 ORDERING INFORMATION TA VT (MAX) VCC = 15 V PACKAGE (1) PDIP – N 0°C to 70°C 11.2 V –40°C to 85°C 11.2 V –40°C to 105°C –55°C to 125°C (1) NE556N Tube of 50 NE556D Reel of 2500 NE556DR SOP – NS Reel of 2000 NE556NSR NE556 PDIP – N Tube of 25 SA556N SA556N PDIP – N Tube of 25 NA556N NA556N Tube of 50 NA556D Reel of 2500 NA556DR SOIC – D 10.6 V CDIP – J Tube of 25 NE556N NE556 NA556 SE556J SE556J SE556JB SE556JB Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE (each timer) RESET TRIGGER VOLTAGE (1) THRESHOLD VOLTAGE (1) OUTPUT DISCHARGE SWITCH Low Irrelevant Irrelevant Low On High <1/3 VDD Irrelevant High Off High >1/3 VDD >2/3 VDD Low On High >1/3 VDD <2/3 VDD (1) As previously established Voltage levels shown are nominal. FUNCTIONAL BLOCK DIAGRAM, EACH TIMER VCC RESET THRES CONT OUT TRIG DISCH GND RESET can override TRIG, which can override THRES. 2 TOP-SIDE MARKING Tube of 25 SOIC – D 11.2 V ORDERABLE PART NUMBER Submit Documentation Feedback NA556, NE556, SA556, SE556 DUAL PRECISION TIMERS www.ti.com SLFS023G – APRIL 1978 – REVISED JUNE 2006 Absolute Maximum Ratings (1) over operating free-air temperature range (unless otherwise noted) MIN VCC Supply voltage (2) VI Input voltage IO Output current θJA Package thermal impedance (3) (4) θJC Package thermal impedance (5) (6) TJ Operating virtual junction temperature CONT, RESET, THRES, and TRIG (1) (2) (3) (4) (5) (6) UNIT 18 V VCC V ±225 mA D package 86 N package 80 NS package Tstg MAX °C/W 76 J package 15.05 °C/W 150 °C Lead temperature 1,6 mm (1/16 in) from case for 60 s J package 300 °C Lead temperature 1,6 mm (1/16 in) from case for 10 s D, N, or NS package 260 °C 150 °C Storage temperature range –65 Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltage values are with respect to network ground terminal. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability. The package thermal impedance is calculated in accordance with JESD 51-7. Maximum power dissipation is a function of TJ(max), θJC, and TC. The maximum allowable power dissipation at any allowable case temperature is PD = (TJ(max) – TC)/θJC. Operating at the absolute maximum TJ of 150°C can affect reliability. The package thermal impedance is calculated in accordance with MIL-STD-883. Recommended Operating Conditions VCC Supply voltage VI Input voltage IO Output current TA Operating free-air temperature MIN MAX NA556, NE556, SA556 4.5 16 SE556 4.5 18 CONT, RESET, THRES, and TRIG V VCC V ±200 mA NA556 –40 105 NE556 0 70 SA556 –40 85 SE556 –55 125 Submit Documentation Feedback UNIT °C 3 NA556, NE556, SA556, SE556 DUAL PRECISION TIMERS www.ti.com SLFS023G – APRIL 1978 – REVISED JUNE 2006 Electrical Characteristics VCC = 5 V to 15 V, TA = 25°C (unless otherwise noted) PARAMETER VT Threshold voltage level IT Threshold current (1) TEST CONDITIONS TYP MAX MIN TYP MAX 8.8 10 11.2 9.4 10 10.6 VCC = 5 V 2.4 3.3 4.2 2.7 3.3 4 30 250 5 5.2 1.67 1.9 Trigger voltage level Trigger current VRESET Reset voltage level IRESET Reset current IDISCH Discharge switch off-state current VCONT Control voltage (open circuit) 250 5 5.6 4.8 1.1 1.67 2.2 1.45 0.5 2 0.7 1 TA = –55°C to 125°C 3 1.1 0.1 0.4 0.1 0.4 1.5 –0.4 –1 20 100 20 100 10 11 10 10.4 VCC = 15 V, IOL = 100 mA 9 TA = –55°C to 125°C 2.6 4 0.1 2.9 3.3 3.8 0.25 0.1 0.15 0.4 0.75 0.4 0.5 2 2.5 2 2.2 µA V mA nA V 1 TA = –55°C to 125°C 2.7 2.5 V 2.5 TA = –55°C to 125°C 0.35 0.1 0.25 0.1 TA = –55°C to 125°C 0.15 0.8 0.15 12.75 0.3 13.3 0.15 13 TA = –55°C to 125°C 0.25 13.3 12 12.5 2.75 12.5 3.3 3 TA = –55°C to 125°C Output high, No load V 0.2 TA = –55°C to 125°C VCC = 15 V nA 3.8 TA = –55°C to 125°C Output low, No load Supply current 4 10.4 2.9 VCC = 15 V, IOH = –200 mA VCC = 5 V, IOH = –100 mA 3.3 TA = –55°C to 125°C VCC = 15 V, IOL = 200 mA VCC = 15 V, IOH = –100 mA 9.6 9.6 VCC = 5 V, IOL = 8 mA (1) 1 –0.4 VCC = 5 V, IOL = 5 mA ICC 0.9 0.7 RESET at 0 V VCC = 5 V, IOL = 3.5 mA High-level output voltage 0.3 RESET at VCC VCC = 15 V V 1.9 0.5 TA = –55°C to 125°C VCC = 15 V, IOL = 50 mA VOH 6 TA = –55°C to 125°C 0.3 VCC = 15 V, IOL = 10 mA VOL 30 4.5 TRIG at 0 V VCC = 5 V Low-level output voltage UNIT MIN VCC = 5 V ITRIG SE556 VCC = 15 V VCC = 15 V VTRIG NA556 NE556 SA556 V 3.3 2 20 30 20 24 VCC = 5 V 6 VCC = 15 V 18 12 6 10 26 18 20 VCC = 5 V 4 10 4 8 mA This parameter influences the maximum value of the timing resistors R and RB in the circuit of Figure 1. For example, when VCC = 5 V, the maximum value is R = RA + RB ≈ 3.4 MΩ, and for VCC = 15 V, the maximum value is ≈ 10 MΩ. Submit Documentation Feedback NA556, NE556, SA556, SE556 DUAL PRECISION TIMERS www.ti.com SLFS023G – APRIL 1978 – REVISED JUNE 2006 Operating Characteristics VCC = 5 V and 15 V PARAMETER NA556 NE556 SA556 TEST CONDITIONS (1) MIN Initial error of timing interval (2) Each timer, monostable (3) Each timer, astable (5) TA = 25°C Supply voltage sensitivity of timing interval TYP MAX 1 3 MIN MAX 0.5 1.5 (4) 1.5% ±1 ±0.5 50 30 150 90 Timer 1 – Timer 2 ±10 ±10 Each timer, monostable (3) 0.1 Each timer, monostable (3) Each timer, astable (5) Each timer, astable (5) TA = MIN to MAX TA = 25°C Timer 1 – Timer 2 0.5 UNIT TYP 2.25% Timer 1 – Timer 2 Temperature coefficient of timing interval SE556 0.05 0.3 0.15 ±0.2 ±0.1 100 (4) ppm/°C 0.2 (4) %/V Output-pulse rise time CL = 15 pF, TA = 25°C 100 300 100 200 (4) ns Output-pulse fall time CL = 15 pF, TA = 25°C 100 300 100 200 (4) ns (1) (2) (3) (4) (5) For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. Timing-interval error is defined as the difference between the measured value and the average value of a random sample from each process run. Values specified are for a device in a monostable circuit similar to Figure 2, with the following component values: RA = 2 kΩ to 100 kΩ, C = 0.1 µF. On products compliant to MIL-PRF-38535, this parameter is not production tested. Values specified are for a device in an astable circuit similar to Figure 1, with the following component values: RA = 1 kΩ to 100 kΩ, C = 0.1 µF. Submit Documentation Feedback 5 NA556, NE556, SA556, SE556 DUAL PRECISION TIMERS www.ti.com SLFS023G – APRIL 1978 – REVISED JUNE 2006 APPLICATION INFORMATION VCC (5 V to 15 V) VCC (5 V to 15 V) Open (see Note A) CONT RA 0.01 µF RA VCC RESET CONT RL RESET DISCH OUT RB RL DISCH OUT OUT THRES TRIG VCC OUT THRES GND TRIG Input C GND C NOTE A: Bypassing the control-voltage input to ground with a capacitor might improve operation. This should be evaluated for individual applications. Figure 1. Circuit for Astable Operation 6 Submit Documentation Feedback Figure 2. Circuit for Monostable Operation PACKAGE OPTION ADDENDUM www.ti.com 25-Jan-2012 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp Samples (Requires Login) JM38510/10902BCA ACTIVE CDIP J 14 1 TBD A42 N / A for Pkg Type M38510/10902BCA ACTIVE CDIP J 14 1 TBD A42 N / A for Pkg Type NA556D ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM NA556DG4 ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM NA556DR ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM NA556DRG4 ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM NA556N ACTIVE PDIP N 14 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type NA556NE4 ACTIVE PDIP N 14 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type NE556D ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM NE556DBR ACTIVE SSOP DB 14 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM NE556DBRE4 ACTIVE SSOP DB 14 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM NE556DBRG4 ACTIVE SSOP DB 14 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM NE556DE4 ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM NE556DG4 ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM NE556DR ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM NE556DRE4 ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM NE556DRG4 ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM NE556N ACTIVE PDIP N 14 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type NE556NE4 ACTIVE PDIP N 14 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Addendum-Page 1 (3) PACKAGE OPTION ADDENDUM www.ti.com 25-Jan-2012 Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp (3) Samples (Requires Login) NE556NSR ACTIVE SO NS 14 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM NE556NSRE4 ACTIVE SO NS 14 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM NE556NSRG4 ACTIVE SO NS 14 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SA556D OBSOLETE SOIC D 14 TBD Call TI Call TI SA556DR OBSOLETE SOIC D 14 TBD Call TI Call TI SA556N ACTIVE PDIP N 14 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type SA556NE4 ACTIVE PDIP N 14 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type SE556FKB OBSOLETE LCCC FK 20 TBD Call TI SE556J ACTIVE CDIP J 14 1 TBD A42 N / A for Pkg Type SE556JB ACTIVE CDIP J 14 1 TBD A42 N / A for Pkg Type Call TI (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. Addendum-Page 2 PACKAGE OPTION ADDENDUM www.ti.com 25-Jan-2012 In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 3 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant NA556DR SOIC D 14 2500 330.0 16.4 6.5 9.0 2.1 8.0 16.0 Q1 NE556DBR SSOP DB 14 2000 330.0 16.4 8.2 6.6 2.5 12.0 16.0 Q1 NE556DR SOIC D 14 2500 330.0 16.4 6.5 9.0 2.1 8.0 16.0 Q1 NE556NSR SO NS 14 2000 330.0 16.4 8.2 10.5 2.5 12.0 16.0 Q1 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) NA556DR SOIC D 14 2500 367.0 367.0 38.0 NE556DBR SSOP DB 14 2000 367.0 367.0 38.0 NE556DR SOIC D 14 2500 367.0 367.0 38.0 NE556NSR SO NS 14 2000 367.0 367.0 38.0 Pack Materials-Page 2 MECHANICAL DATA MSSO002E – JANUARY 1995 – REVISED DECEMBER 2001 DB (R-PDSO-G**) PLASTIC SMALL-OUTLINE 28 PINS SHOWN 0,38 0,22 0,65 28 0,15 M 15 0,25 0,09 8,20 7,40 5,60 5,00 Gage Plane 1 14 0,25 A 0°–ā8° 0,95 0,55 Seating Plane 2,00 MAX 0,10 0,05 MIN PINS ** 14 16 20 24 28 30 38 A MAX 6,50 6,50 7,50 8,50 10,50 10,50 12,90 A MIN 5,90 5,90 6,90 7,90 9,90 9,90 12,30 DIM 4040065 /E 12/01 NOTES: A. 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