for further information contact your local stmicroelectronics sales office. april 2013 docid024384 rev1 1/8 8 CLT01-38S4 high speed protected di gital termination array data brief features ? 8-input circuit in common ground low side topology ? wide range input dc voltage v i : -30 v to 35 v ? on state threshold: < 11 v with r i = 2.2 k ? ? off state threshold: i in > 1.5 ma or v i > 5 v ? protected against -30 v reverse polarity ? typical i lim = 2.1 to 2.6 ma adjustable current limiters ? tight current tolerance including temperature compensation: 10% ? serial output with an spi communication bus ? clock frequency up to 6.25 mhz ? c pha = c pol = 0 bus master operation ? multi clt operation in daisy chain connection ? 16-bit mode: 8 bits for data / 8 bits for control ? minimum capture time: 4 s ? input data rate: 200 kbps/100 khz ? minimum propagation transfer time: 7 s ? 8-bit mode: 8 bits for data ? minimum capture time: 2.5 s ? input data rate: 400 kbps/200 khz ? minimum propagation transfer time: 4 s ? v cc = -0.3 to +35 v with r c = 2.2 k ? ? ambient temperature range: -25 to +85c ? digital inputs for programmable logic controller and decentralized i/o modules benefits ? enables input to meet type 1, 2 and 3 characteristics of iec 61131-2 standard ? compatible operation wi th 2 wires proximity sensor according en 60947-5-2 standard ? compact board with surface mount integration and reduced count of isolated couplers ? reduces the count of input-output of the bus controller circuit ? provides energy-less input led visual status ? enhanced functional reliability ? built-in over voltage robustness and immune data transfer ? reduced dissipation: 78 mw max. per channel complies with following standards (r i =2.2 ?? , r c =2.2 ?? , c = 33 nf): ? electrostatic discharge, iec 61000-4-2: ? 8 kv contact discharge ? 15 kv air discharge ? electrical transient immunity iec 61000-4-4 (a) : ?f sck = 6.25 mhz, 3 kv ?f sck = 10 khz, 4 kv ? voltage surge iec 61000-4-5 ? input: 15 kv ? power supply: 2.5 kv applications ? programmable logic controller and decentralized input modules ? high speed protected termination for digital input with seria lized spi output ? iec 61131-2 type 1, 2 and 3. CLT01-38S4 htssop-38 a. with 470 pf grounded on cs and 100 pf grounded on clk www.st.com
description CLT01-38S4 2/8 docid024384 rev1 1 description CLT01-38S4 adds to the existi ng current limiter family. still focusing on power consumption savings, the whole series allows each customer to find the right solution. the CLT01-38S4 is an octal input termination device with a high speed spi output. its maximum input data rate is 400 kbps wh ile the output spi speed is 6.25 mhz. as in previous versions, robustness is a key feature of CLT01-38S4. the product is compliant with surge standards defined in iec 61000-4-x. it can run all types of sensor according to iec 61131-2. type 1 and 3 with a 2.35 ma limited current and type 2 using two inputs per sensor with the correct r ref . 2 characteristics 2.1 simplified block diagram figure 1. simplified block diagram mosi for i = 1 to 8 current reference 8 lines 4 lines 8 lines 8 lines logic control input state register data state register control state register transfer logic power reset power supply parity bits generator over temperature alarm under voltage alarm shift write miso, /miso control capture mosi shift 16 - bit v dd v dd v dd v dd v c v r v in docid024384 rev1 3/8 CLT01-38S4 characteristics 2.2 basic application diagram figure 2. basic application diagram 2.3 input i/o pin descriptions figure 3. pinout description of the htssop-38 version (top view) o-t o-t o-t 8 / 16-bit state transfer spi voltage regulator CLT01-38S4 field bus controler c pha = 0 c pol = 0 o-t = opto-transistor or isolator 8-input type 1 / 3 clt r i r c r ref r s uva r pd spi ld 1 ld 8 dvr mosi miso /cs sck v dd spm com s v c com p in 8 ref v cs v cc v i v in in 1 spm v c v cs com p in 1 in 2 dvr in 3 in 4 com p in 5 in 6 in 7 in 8 com p v dd /cs sck mosi nc com s ref ld 1 ld 2 ld 3 ld 4 ld 5 ld 6 ld 7 ld 8 sub nc nc com p nc nc 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 sub 32 31 30 29 28 27 26 25 24 23 22 21 20 35 37 36 34 33 38 nc spm v c v cs com p in 1 in 2 dvr nc in 3 in 4 com p in 5 in 6 in 7 in 8 com p v dd /cs sck mosi com s ref ld 1 ld 2 ld 3 ld 4 ld 5 ld 6 ld 7 ld 8 sub nc nc com p nc nc 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 32 31 30 29 28 27 26 25 24 23 22 21 20 35 37 36 34 33 38 nc spm v c v cs com p in 1 in 2 dvr in 3 in 4 com p in 5 in 6 in 7 in 8 com p v dd /cs sck mosi miso /miso com s ref ld 1 ld 2 ld 3 ld 4 ld 5 ld 6 ld 7 ld 8 sub nc nc com p nc nc 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 32 31 30 29 28 27 26 25 24 23 22 21 20 35 37 36 34 33 38 32 31 30 29 28 27 26 25 24 23 22 21 20 35 37 36 34 33 38 nc
characteristics CLT01-38S4 4/8 docid024384 rev1 table 1. pin-out name and description name type description pin name in i power input logic input with a current regulation behavior, i = 1 to 8 8 to 11, 13 to 16 ld i power output led output driver with a current regulation behavior, i = 1 to 8 20 to 27 vc power input 24 v sensor power supply 5 vcs signal input 24 v sensor power supply sensing input 6 comp ground power ground of power sensor supply 4, 7, 12, 17 vdd power output 5 v logic power supply 38 coms ground signal ground of logic / output section 30 ref signal input input current limiter reference setting 29 spm signal input spi shift register length selector (8 or 16 bits) 3 /cs logic input spi chip select signal 35 sck logic input spi serial clock signal 34 mosi logic output spi serial data input signal 33 dvr signal input spi data selector: dvr = gnd ? pin 31 = miso dvr = vdd ? pin 31 = /miso 1 miso or /miso logic output spi serial data output signal or inverting spi serial data output signal 31 sub substrate exposed pad: connected to die su bstrate, to connect to comp exposed pad nc not connected (or to be connected to comp) 2, 18, 19, 28, 36, 37
docid024384 rev1 5/8 CLT01-38S4 package information 3 package information ? epoxy meets ul94, v0 ? lead-free packages in order to meet environmental requirements, st offers these devices in different grades of ecopack ? packages, depending on their level of environmental compliance. ecopack ? specifications, grade definitions a nd product status are available at: www.st.com . ecopack ? is an st trademark. figure 4. htssop-38 dimension definitions c e1 e a a2 a1 b d p p1 0.25 mm ? l 20 19 14 38 1 e
package information CLT01-38S4 6/8 docid024384 rev1 figure 5. footprint (dimensions in mm) table 2. htssop-38 dimension values ref. dimensions millimeters inches min. typ. max. min. typ. max. a - - 1.1 - - 0.043 a1 0.05 - 0.15 0.002 - 0.006 a2 0.85 0.9 0.95 0.033 0.035 0.037 b 0.17 - 0.27 0.007 - 0.011 c 0.09 - 0.20 0.003 - 0.008 d 9.60 9.70 9.80 0.378 0.382 0.386 e1 4.30 4.40 4.50 0.169 0.173 0.177 e - 0.50 - - 0.020 - e - 6.40 - - 0.252 - l 0.50 0.60 0.70 0.020 0.024 0.027 p 6.40 6.50 6.60 0.252 0.256 0.260 p1 3.10 3.20 3.30 0.122 0.126 0.130 ? 0 - 8 0 - 8 0.3 6.60 3.30 1.30 0.5 0.60 4.50 7.10
docid024384 rev1 7/8 CLT01-38S4 ordering information 4 ordering information figure 6. ordering information scheme 5 revision history table 3. ordering information order code marking package weight base qty delivery mode CLT01-38S4-tr CLT01-38S4 htssop-38 114 mg 2500 tape and reel CLT01-38S4 CLT01-38S4 htssop-38 114 mg 40 tube clt 01 - 3 8 s4 current limiting termination version current limitation 3 = 3 ma octal input serial table 4. revision history date revision changes 23-apr-2013 1 first issue
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