CLT01-38S4 High speed protected digital termination array Data brief Benefits Enables input to meet type 1, 2 and 3 characteristics of IEC 61131-2 standard Compatible operation with 2 wires proximity sensor according EN 60947-5-2 standard Compact board with surface mount integration and reduced count of isolated couplers CLT01-38S4 HTSSOP-38 Reduces the count of input-output of the bus controller circuit Features Provides energy-less input LED visual status 8-input circuit in common ground low side topology Enhanced functional reliability Wide range input DC voltage VI: -30 V to 35 V Built-in over voltage robustness and immune data transfer On state threshold: < 11 V with RI = 2.2 k Reduced dissipation: 78 mW max. per channel Off state threshold: Iin > 1.5 mA or Vi > 5 V Protected against -30 V reverse polarity Typical ILIM = 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 CPHA = CPOL = 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 VCC = -0.3 to +35 V with RC = 2.2 k Ambient temperature range: -25 to +85C Digital inputs for programmable logic controller and decentralized I/O modules April 2013 Complies with following standards (RI = 2.2, RC = 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): - FSCK = 6.25 MHz, 3 kV - FSCK = 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 serialized SPI output IEC 61131-2 type 1, 2 and 3. a. With 470 pF grounded on CS and 100 pF grounded on CLK DocID024384 Rev1 For further information contact your local STMicroelectronics sales office. 1/8 www.st.com 8 Description 1 CLT01-38S4 Description CLT01-38S4 adds to the existing 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 while 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 RREF. 2 Characteristics 2.1 Simplified block diagram Figure 1. Simplified block diagram VDD DVR MISO, /MISO control VDD VIN < VR 8 lines 8 lines COMPP Data state register LD1 Input state register VR Logic control For i = 1 to 8 MISO /MISO IN1 Write VDD MOSI Shift VDD Capture MOSI VDD Transfer logic REF 8 lines SCK Current reference VDD /CS Parity bits generator 4 lines Over temperature alarm 2/8 DocID024384 Rev1 Control state register Shift 16- bit SPM Power reset Power supply VC VDD Under voltage alarm VCS CLT01-38S4 2.2 Characteristics Basic application diagram Figure 2. Basic application diagram VCS UVA SPI RPD VCC VC RC VI RI CLT01-38S4 COMP COMS regulator SCK VIN IN 8 / 16-bit 1 8-input O-T MISO SPI CLT CPHA = 0 CPOL = 0 O-T /CS State transfer TYPE 1 / 3 IN8 RREF VDD Voltage O-T Field bus controler RS MOSI REF SPM DVR LD 1 2.3 O-T = opto-transistor or isolator LD 8 Input I/O pin descriptions Figure 3. Pinout description of the HTSSOP-38 version (top view) 1 2 3 DVR VDD NC NC SPM SUB NC 4 COMP 5 VC SCK 6 VCS MOSI 7 COMP IN2 NC MISO /MISO COMS IN3 REF IN4 NC COMP LD1 IN5 LD2 IN6 LD3 IN7 LD4 IN8 LD5 8 9 10 11 12 13 14 15 16 17 18 19 /CS IN1 COMP SUB LD6 NC LD7 NC LD8 DocID024384 Rev1 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 3/8 Characteristics CLT01-38S4 Table 1. Pin-out name and description Name Type description INI Power input LDI Power output LED output driver with a current regulation behavior, I = 1 to 8 VC Power input 24 V sensor power supply 5 VCS Signal input 24 V sensor power supply sensing input 6 Ground Power ground of power sensor supply COMP VDD Logic input with a current regulation behavior, I = 1 to 8 Pin name 8 to 11, 13 to 16 20 to 27 4, 7, 12, 17 Power output 5 V logic power supply 38 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 Signal input SPI data selector: DVR = GND pin 31 = MISO DVR = VDD pin 31 = /MISO 1 SPI serial data output signal or Inverting SPI serial data output signal 31 Exposed pad: connected to die substrate, to connect to COMP Exposed pad COMS DVR MISO or Logic output /MISO SUB NC 4/8 Substrate Not connected (or to be connected to COMP) DocID024384 Rev1 2, 18, 19, 28, 36, 37 CLT01-38S4 3 Package information Package information Epoxy meets UL94, V0 Lead-free packages In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK(R) packages, depending on their level of environmental compliance. ECOPACK(R) specifications, grade definitions and product status are available at: www.st.com. ECOPACK(R) is an ST trademark. Figure 4. HTSSOP-38 dimension definitions 38 20 E E1 1 c e 19 D 14 0.25 mm A2 A P b A1 L O P1 DocID024384 Rev1 5/8 Package information CLT01-38S4 Table 2. HTSSOP-38 dimension values Dimensions Ref. 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 O 0 - 8 0 - 8 Figure 5. footprint (dimensions in mm) 0.5 1.30 0.60 7.10 0.3 6/8 3.30 4.50 6.60 DocID024384 Rev1 CLT01-38S4 4 Ordering information Ordering information Figure 6. Ordering information scheme CLT 01 - 3 8 S4 Current limiting termination Version Current limitation 3 = 3 mA Octal input Serial Table 3. Ordering information 5 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 Revision history Table 4. Revision history Date Revision 23-Apr-2013 1 Changes First issue DocID024384 Rev1 7/8 CLT01-38S4 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries ("ST") reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST's terms and conditions of sale. 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