T stg -40 to 125 C V cc 3.8V V dc RH 0 to 100 %RH T a -40 to +125 C -0.3 to 3.6V V -0.3 to VDD+0.3 V -10 to +10 ma = 25 = 3V) VDD

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T stg -40 to 125 C V cc 3.8V V dc RH 0 to 100 %RH T a -40 to +125 C -0.3 to 3.6V V -0.3 to VDD+0.3 V -10 to +10 ma (@T = 25 C, @Vdd = 3V) VDD 1.8 3.0 3.6 V (1) 0.08 0.3 µa Idd 300 450 500 µa 0.25 1.1 µw (2) 2.7 µw VDD=3V 5.5mW/ T=+0.5-1.5 C -40 C /125 C dd = 3V, SCK= 400kHz at 25 C (1) (2) dd = 3V, SCK= 400kHz, Temp<60 C 2/16

(@T = 25 C, @Vdd = 3V) 12 bit 0.04 %RH 8 bit 0.7 %RH RH 0 100 %RH typ ±2 %RH max ±3 ±5 %RH ±1 %RH 12 bit 14 18 ms (1) (2) (1) 11 bit 7 9 ms 10 bit 4 5 ms 8 bit 2 3 ms PSRR ±10 LSB t 10 s 0.5 %RH/yr (2) τ RH 5 10 s 3/16

(1) 14 bit 0.01 C 12 bit 0.04 C T -40 +125 C typ ±0.3 C max ±0.4 C 14 bit 44 58 ms 13 bit 22 29 ms 12 bit 11 15 ms 11 bit 6 8 ms PSSR ±25 LSB 0.04 C/yr (2) (1) (2) τ T 10 s 4/16

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humidity.application@meas-spec.com. 6/16

N 1 2 3 4 5 VDD 6 DATA GND NC NC SCK 7/16

VDD=3V -4mA<IOL<0mA VDD=3.6V VIN=0V to 3.6V VOL 0-0.4 V VOH 70% - VDD V VIL 0% - 30%VDD V VIH 70%VDD - VDD V IL - - TBD µa f SCK 0-0.4 MHz t SCKLH 0.6 - - µs t SCLL 1.3 - - µs t SU 100 - - ns t HD 0-900 ns t VD 0-400 ns t F 0-100 ns t R 0-300 ns C B 0-500 pf 8/16

humidity.application@meas-spec.com. 0xE3 0xE5 0xF3 0xF5 0xE6 0xE7 0xFE 9/16

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 S 1 0 0 0 0 0 0 0 ACK 1 1 1 0 0 1 0 1 ACK I²C address + write Command (see table p.9) 19 20 21 22 23 24 25 26 27 S 1 0 0 0 0 0 0 1 ACK Measurement I²C address + read Hold during measurement 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 0 1 1 0 0 0 1 1 ACK 0 1 0 1 0 0 1 0 ACK Data (MSB) Data (LSB) Status 46 47 48 49 50 51 52 53 54 0 1 1 0 0 1 0 0 NACK P Checksum 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 S 1 0 0 0 0 0 0 0 ACK 1 1 1 1 0 1 0 1 ACK I²C address + write Command (see table p.9) 19 20 21 22 23 24 25 26 27 Measurement S 1 0 0 0 0 0 0 1 NACK measuring I²C address + read 19 20 21 22 23 24 25 26 27 Measurement S 1 0 0 0 0 0 0 1 ACK continue measuring I²C address + read 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 0 1 1 0 0 0 1 1 ACK 0 1 0 1 0 0 1 0 ACK Data (MSB) Data (LSB) Status 46 47 48 49 50 51 52 53 54 0 1 1 0 0 1 0 0 NACK P Checksum 10/16

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 S 1 0 0 0 0 0 0 0 ACK 1 1 1 1 1 1 1 0 ACK P I²C address + write Soft Reset Command 11/16

7,0 2 RH Temp 00 12 bit 14 bit 01 8 bit 12 bit 10 10 bit 13 bit 11 11 bit 11 bit 6 1 0 0 : VDD>2.25V 1 : VDD<2.25V 3, 4, 5 3 2 1 0 1 1 1 (1) (1) 00 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 S 1 0 0 0 0 0 0 0 ACK 1 1 1 0 0 1 1 1 ACK I²C address + write Read Register Command 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 S 1 0 0 0 0 0 0 1 ACK 0 0 0 0 0 0 1 0 NACK I²C address + read Register content 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 S 1 0 1 0 0 0 0 0 ACK 0 1 0 1 0 0 1 0 ACK I²C address + write 55 56 57 58 59 60 61 62 63 0 1 1 0 0 1 0 0 ACK P Register Content to be written Write Register Command x 8 + x 5 + x 4 +1. 12/16

8 X + X 5 + X 4 + 1 0x00 RH = 6 + 125x S RH 16 2 Temp = 46.85 + 175.72x S Temp 16 2 13/16

o o o 14/16

XX: O: NN: YY: RRR: TTTT: DDD: QQQQ: 15/16

Measurement Specialties Inc. MEAS Europe 1000 Lucas Way Impasse Jeanne Benozzi, CS 83163 Hampton,VA 23666 31027 Toulouse,Cedex 3,France Tel: 1-757-766-1500 Tél: +33 (0) 5-820-822-02 Fax: 1-757-766-4297 Fax: +33 (0) 5-820-821-51 sales.china@meas-spec.com Sales: sales.hampton@meas-spec.com Sales: humidity.sales@meas-spec.com The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for inaccuracies. Furthermore, this information does not convey to the purchaser of such devices any license under the patent rights to the manufacturer. Measurement Specialties, Inc. reserves the right to make changes without further notice to any product herein. Measurement Specialties, Inc. makes no warranty, representation or guarantee regarding the suitability of its product for any particular purpose, nor does Measurement Specialties, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liability, including without limitation consequential or incidental damages. Typical parameters can and do vary in different applications. All operating parameters must be validated for each customer application by customer s technical experts. Measurement Specialties, Inc. does not convey any license under its patent rights nor the rights of others. 16/16