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Details, datasheet, quote on part number:LMC555MDA
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Datasheet text preview:
LMC555 CMOS Timer
March 2002
LMC555 CMOS Timer
General Description
The LMC555 is a CMOS version of the industry standard 555 series general purpose timers. In addition to the standard package (SOIC, MSOP, and MDIP) the LMC555 is also available in a chip sized package (8 Bump micro SMD) using National's micro SMD package technology. The LMC555 offers the same capability of generating accurate time delays and frequencies as the LM555 but with much lower power dissipation and supply current spikes. When operated as a one-shot, the time delay is precisely controlled by a single external resistor and capacitor. In the stable mode the oscillation frequency and duty cycle are accurately set by two external resistors and one capacitor. The use of National Semiconductor 's LMCMOSTM process extends both the frequency range and low supply capability.
Features
n n n n n n n n n n Less than 1 mW typical power dissipation at 5V supply 3 MHz astable frequency capability 1.5V supply operating voltage guaranteed Output fully compatible with TTL and CMOS logic at 5V supply Tested to -10 mA, +50 mA output current levels Reduced supply current spikes during output transitions Extremely low reset, trigger, and threshold currents Excellent temperature stability Pin-for-pin compatible with 555 series of timers Available in 8 pin MSOP Package and 8-Bump micro SMD package
Block and Connection Diagrams
8-Pin SOIC, MSOP, and MDIP Packages 8-Bump micro SMD
DS008669-1
Top View Top View (Bump side down)
DS008669-9
Pulse Width Modulator
DS008669-15
DS008669-20
LMCMOSTM is a trademark of National Semiconductor Corp.
© 2002 National Semiconductor Corporation
DS008669
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LMC555
Ordering Information
Package Temperature Range Industrial -40°C to +85°C 8-LeadSmall Outline (SO) 8-Lead Mini Small Outline (MSOP) 8-Lead Molded Dip (MDIP) 8-Bump micro SMD micro SMD Demo Board LMC555CM LMC555CMX LMC555CMM LMC555CMMX LMC555CN LMC555CBP LMC555CBPX LMC555CBPEVAL LMC555CM LMC555CM ZC5 ZC5 LMC555CN F1 F1 N/A Rails 2.5k Units Tape and Reel 1k Units Tape and Reel 3.5k Units Tape and Reel Rails 250 Units Tape and Reel 3k Units Tape and Reel N/A Package Marking Transport Media NSC Drawing
M08A MUA08A N08E BPA08EFB N/A
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LMC555
Absolute Maximum Ratings (Notes 2, 3)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage, V+ Input Voltages, VTRIG, VRES, VCTRL, VTHRESH Output Voltages, VO, VDIS Output Current IO, IDIS Storage Temperature Range Soldering Information MDIP Soldering (10 seconds) SOIC, MSOP Vapor Phase (60 sec) SOIC, MSOP Infrared (15 sec) 15V -0.3V to VS + 0.3V 15V 100 mA -65°C to +150°C 260°C 215°C 220°C
Operating Ratings(Notes 2, 3)
Termperature Range Thermal Resistance (JA) (Note 2) SO, 8-lead Small Outline MSOP, 8-lead Mini Small Outline MDIP, 8-lead Molded Dip 8-Bump micro SMD Maximum Allowable Power Dissipation @25°C MDIP-8 SO-8 MSOP-8 8 Bump micro SMD -40°C to +85°C 169°C/W 225°C/W 111°C/W 220°C/W
1126mW 740mW 555mW 568mW
Note: See AN-450 "Surface Mounting Methods and Their Effect on Product Reliability" for other methods of soldering surface mount devices.
Electrical Characteristics
Symbol IS Parameter Supply Current
(Notes 1, 2) Test Circuit, T = 25°C, all switches open, RESET to VS unless otherwise noted Conditions VS = 1.5V VS = 5V VS = 12V VS = 1.5V VS = 5V VS = 12V VS = 1.5V, IDIS = 1 mA VS = 5V, IDIS = 10 mA VS = 1.5V, IO = 1 mA VS = 5V, IO = 8 mA VS = 12V, IO = 50 mA VS = 1.5V, IO = -0.25 mA VS = 5V, IO = -2 mA VS = 12V, IO = -10 mA VS = 1.5V VS = 12V VS = 5V VS = 1.5V (Note 4) VS = 12V VS = 5V VS = 5V VS = 12V SW 2, 4 Closed VS = 1.5V VS = 5V VS = 12V VS = 5V ± 1V VS = 5V -40°C T +85°C SW 1, 3 Closed, VS = 12V Max. Freq. Test Circuit, VS = 5V Max. Freq. Test Circuit VS = 5V, CL = 10 pF 4.0 0.9 1.0 1.0 0.4 0.4 1.0 4.4 10.5 0.4 3.7 0.8 2.9 7.4 Min Typ 50 100 150 1.0 3.3 8.0 75 150 0.2 0.3 1.0 1.25 4.7 11.3 0.5 4.0 10 0.7 0.75 10 10 1.0 1.1 1.1 1.1 0.3 75 4.8 3.0 15 5.6 100 1.25 1.20 1.25 1.0 1.1 0.6 4.3 Max 150 250 400 1.2 3.8 8.6 150 300 0.4 0.6 2.0 Units (Limits) µA
VCTRL
Control Voltage
V
VDIS VOL
Discharge Saturation Voltage Output Voltage (Low)
mV
V
VOH
Output Voltage (High) Trigger Voltage Trigger Current Reset Voltage Reset Current Threshold Current Discharge Leakage Timing Accuracy
V
VTRIG ITRIG VRES IRES ITHRESH IDIS t
V pA V pA pA nA
ms
t/VS t/T fA fMAX tR, tF
Timing Shift with Supply Timing Shift with Temperature Astable Frequency Maximum Frequency Output Rise and Fall Times
%/V ppm/°C kHz MHz ns
3
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