1 hz interrupt generato r slg7nt128 v silego technology, inc. preliminary rev 0.14 slg7nt128_ds_r014 revised march 25, 2013 pa02utc0086-01 general description silego SLG7NT128V is a low power and small form device. the soc is housed in a 2mm x 2mm tdfn package which is optimal for using with small devices. features ? low power consumption ? 3.3v supply ? pb-free / rohs compliant ? halogen-free ? tdfn-8 package pin configuration 1 2 3 4 8 7 6 5 vdd nmi_gate mbl_pwrgd_mr_n sense smc _ rst _ n smc_init_ck nc gnd tdfn-8 top view thermal pad connected to gnd SLG7NT128V output summary ? 2 outputs ? open drain
1 hz interrupt generato r slg7nt128 v slg7nt128_ds_r014 preliminary page 2 pin configuration pin # pin name type pin description 1 vdd power 3.3v supply voltage 2 nmi_gate input digital input 3 mbl_pwrgd_mr_n input digital input 4 sense input analog input 5 gnd gnd ground 6 nc -- connect to gnd or keep floating 7 smc_rst_n output open drain 8 smc_init_ck output open drain exposed bottom pad gnd gnd ground ordering options & configuration part number package type SLG7NT128V v = tdfn-8 SLG7NT128Vtr vtr = tdfn-8 ? tape and reel (3k units)
1 hz interrupt generato r slg7nt128 v slg7nt128_ds_r014 preliminary page 3 absolute maximum ratings parameter min. max. unit v dd to gnd -0.3 4.6 v voltage at input pins -0.3 4.6 v current at input pin -1.0 1.0 ma storage temperature range -65 150 c junction temperature -- 150 c electrical characteristics symbol parameter condition / note min typ max unit v dd supply voltage 3.0 3.3 3.6 v i q quiescent current static i nputs and outputs -- 30 -- -40 25 85 c v air analog input voltage range 0 -- 2.2 v v ih high-level input voltage logic input 1.8 -- 3.3 v i ih high-level input leakage current logic input pins; vin=3. 3v -100 -- 100 na i il low-level input leakage current logic input pins; vin=0v -100 -- 100 na v il low-level input voltage logic input -0.3 -- 0.8 v v ol low-level output voltage open drain logic level outputs 0 -- 0.4 v i oh low-level output current open drain -- 20 -- ma v ref reference voltage analog comparator 0 -- 400 -- mv v hyst analog comparator hysteresis analog comparator 0 -- 50 -- mv r pull up internal pull up resistance pull up on pin7 and pin8 80 100 120 k ? t stu p start up time -- 7 -- ms
1 hz interrupt generato r slg7nt128 v slg7nt128_ds_r014 preliminary page 4 description this is a special oscillator with superv isor system. three inputs are used to cont rol the oscillator. pin4 controls the voltage supply of the chip. if supply voltage decreases to 2.8v , the chip disables the oscillator and sets smc_inick to low. when voltage > 2.8v is detected on the sense pin, sm c_rst_n is set to high with 20 ms delay and enables the oscillator. mbl_pwrgd_mr_n is used for manual reset of smc_rst_n. use nmi_gate to disable the oscillator. typical application circuit timing diagrams
1 hz interrupt generato r slg7nt128 v slg7nt128_ds_r014 preliminary page 5 SLG7NT128V functionality waveforms channel 1 (yellow/top line) ? pin# 8 (smc_init_clk) channel 2 (light blue/2 nd line) ? pin# 7 (smc_rst_n) channel 3 (magenta /3 rd line) ? pin# 3 (mbl_pgood_mr) channel 4 (green /bottom line) ? pin# 2 (nmi_gate) 1. osc enable 2. 20ms delay supervisor channel 1 (yellow/top line) ? pin# 8 (smc_init_clk) channel 2 (light blue/2 nd line) ? pin# 7 (smc_rst_n) channel 3 (magenta /3 rd line) ? pin# 4 (sense) channel 4 (green /bottom line) ? pin# 2 (nmi_gate) 3. power voltage detect package top marking
1 hz interrupt generato r slg7nt128 v slg7nt128_ds_r014 preliminary page 6 datasheet revision programming code number part code revision date 0.14 01 kn a 03/22/2013
1 hz interrupt generato r slg7nt128 v slg7nt128_ds_r014 preliminary page 7 package drawing and dimensions tdfn-8 package
1 hz interrupt generato r slg7nt128 v slg7nt128_ds_r014 preliminary page 8 tape and reel specification package type # of pins nominal package size (mm) max units reel & hub size (mm) trailer a leader b pocket (mm) per reel per box pockets length (mm) pockets length (mm) width pitch tdfn 8l 2x2mm green 8 2x2x0.75 3000 3000 178/60 42 168 42 168 8 4 carrier tape drawing and dimensions package type pocket btm length (mm) pocket btm width (mm) pocket depth (mm) index hole pitch (mm) pocket pitch (mm) index hole diameter (mm) index hole to tape edge (mm) index hole to pocket center (mm) tape width (mm) a0 b0 k0 p0 p1 d0 e f w tdfn 8l 2x2mm green 2.3 2.3 1.05 4 4 1.55 1.75 3.5 8 recommended reflow soldering profile please see ipc/jedec j-std-020: latest revision fo r reflow profile based on package volume of 4.6875 mm 3 (nominal). more information can be found at www.jedec.org .
1 hz interrupt generato r slg7nt128 v slg7nt128_ds_r014 preliminary page 9 datasheet revision history date version change 02/08/2012 0.1 new design 06/05/2012 0.11 changed name of design to ?1hz interrupt generator? 03/08/2013 0.12 updated device revision table 03/18/2013 0.13 corrected timing diagrams 03/25/2013 0.14 updated device revision table
1 hz interrupt generato r slg7nt128 v slg7nt128_ds_r014 preliminary page 10 silego website & support silego technology website silego technology provides online support via our website at http://www.silego.com/ .this website is used as a means to make files and information easily available to customers. for more information regarding silego green products, please visit: http://greenpak.silego.com/ http://greenpak2.silego.com/ http://greenfet.silego.com/ http://greenfet2.silego.com/ http://greenclk.silego.com/ products are also available for purchase direct ly from silego at the silego online store at http://store.silego.com/ . silego technical support datasheets and errata, application notes and example desig ns, user guides, and hardware support documents and the latest software releases are available at the silego website or can be requested directly at info@silego.com . for specific greenpak design or applications questi ons and support please send email requests to greenpak@silego.com users of silego products can receive assistance through several channels: contact your local sales representative customers can contact their local sales representative or fiel d application engineer (fae) for support. local sales offices are also available to help customers. more information rega rding your local representative is available at the silego website or send a request to info@silego.com contact silego directly silego can be contacted directly via e-mail at info@silego.com or user submission form, located at the following url: http://support.silego.com/ other information the latest silego technology press releases, listing of semi nars and events, listings of world wide silego technology offices and representatives are all available at http://www.silego.com/ this product has been designed and qualified for the consum er market. applications or uses as critical components in life support devices or syst ems are not authorized. silego technology does not assume any liability aris ing out of such applications or uses of its products. silego technology reserves the right to improve product design, functions and reliability without notice.
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