54628 74628 Voltage-Controlled Oscillators 353 Schottky TTL High-Speed TTL Low-Power Schottky TTL Standard TTL Low-Power TTL N a tn fo . Package . Package . Package Package . Package Device Type Device Type Device Type Device Type; -;,1_| Device Type Cc |P|MiCF C|}P|M CF Ci PIM|CF Cc|P|M|CF C|PIM|CFE SN54L S628 Jy _ - 4f 4 J Tl. .S& SNT4L S628 Jt (Nt FAIRCHILD 1 MOTOROLA f= = == - NS.C. PHILIPS b - ~ SIGNETICS SIEMENS FUJITSU fp pepe eee - HITACHI MITSUBISHI |- NEC TOSHIBA Electrical Characteristics SN54LS628/SN74LS628 absolute maximum ratings over operating free-air temperature range Supply voltage. Voo ~e IV_| Operating free ar temperature | SNS4LS| 55T to 125 Pin Assignment (Top View) Input voltage N range [SN74LS" OT to 70 . Storage temperature range 65T to 150C . we L8628 (TOP VIEW} recommended operating conditions e ; SN54LS SN74LS UNIT OSS msm smersr LL MIN NOM MAX|MIN NOM MAX Supply voltage Voc 4.5 $.8] 4.75 5.25] Vv _Input_voltage at frequency control or range input Vj (freq) or Vi (rng) & os Q 5 v High fevel output current, oy 1.2 l.2] mA Low level output current, Io, _ 12 24] mA Outout ti (enabled), f ! ! Hz ie utou if ts , equercy (enabled), fo 0 oot Mui > GD * Operating free air temperature, Ta 55 125 0 70 c electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) SN54LS SN74LS' METER DITION om PARA TEST CONDITIONS MIN TYPE MAX] MIN TYPE max] UNIT Vin High-iavel input voltage 2 2 at enable @ Vit Low-level input voltage 0.7 08 at enable @ Input clamp voltage Vv Veco =MIN.. = 18mA -1.5 ~1.5 ik at enable @ ce - il Voc =MIN. Vi =2V. VoH High-level output voltage 25 3.4 2.7 3.4 . IoH=!.2mA, See Note 3 Yoo =MIN. lop = lama 0.25 0.4 0.25 0.4 Vot. Low-level output voltage Vit =Vi_ MAX See Note 3 lou =24mA 0.35 0.5 Freq control | V,=5V 50250 50 250 \ Input current Viog =MAX or range & Mica 10 50 10. St 4 input current 4 at_ maximum Enable & Voc =MAX. Vy=7V 0.2 0.2 input voltage High-level NW Enable # Voc MAX, V,=2.7V 40 40 input current \ Low-level Enable & | Veg =MAX a.4v 0.8 0.8 a = : 3. -0. -0. I input current n e ce i . log Short-circuit output current Voo =MAx 40 225 | 40 7 225 | loo Supply current, total into Voc = MAX, See Note 4 20 5 20 935 | Voc and Vee pins Enable G = 4.5V - . . eet _ . NOTES: 3. VgH for Y output and Vo. for Y output (not applicadie to switching characteristics, Voc= 5V (unless otherwise noted), L$627 and LS629) are measured while enable input are RL = 6672, Ci_=45pF, Ta=25C connected to GND as { kQ resistors are connected from PARAMETER TEST CONDITIONS MIN TYP) MAX | UNIT Cx1 to Voc and from Cx2 to GND. - | Vi(ireq) =5V. Vitrng) 0V 20 28 ot The resistor are reversed for testing Voy of Y outputs and fo Output frequency Cext=2pF (trea) Toy. a VoL of Y outputs. That is 1 k@ resister is connected from x | Vi(treq) = OV. ViCrng) = SV z Cxa2 to Voc and another 1 kQ resistor from Cx to GNO fo Output frequency (or ystai controlled) Voo=3v._viCtreq) = vi(mg) =ov 20 28 4. For LS624, 1.5626, 1 S628 and L S629. icc 1s measured fo Output duty cycle Cext=ISpF to 500uF 50 with the outputs disabled and open, and Voc =MAX Propagation delay time high-to- For L.S625, 'LS627. Icg 1s measured with one Vog =MAX, t to + (> PHL ow-level output trom enable to to Y| tHz 30 and with the other Vg and outputs open. t For conditions shown as MIN or MAX, use the appropriate value specified under -ecommended operating conditions. Aji typial values are at Vog =5V. Ta =25T No: more than one output should be shorted at a time and duration of the short-circuit should not exceed one second @The characteristics involving an enable input are applicable to L S624, "L. S626. LS628 and L S629 only. aThe characteristics involving a range input are applicable to L S624, 'LS628 and t.S629 only