Digital Output Type 3-axis Acceleration Sensor HAAM-375 Functional interrupt output function reduces your burden of developing application software !! ■ Features ・Output various interrupt signals by preset threshold (Screen info, Wakeup, Drop detection) ・8-bit digital acceleration signal output ・Serial Interface available (I2C) ・Low Voltage Drive (2.4V～), Interface block can be driven by as low as 1.7V ・Low Power Consumption Standby mode: (3μA Max.) Normal mode:100μA Max. (when DR=10ms selected) ・Various calibrations are done by built-in EEPROM ■ Additional function Item Data rate change function Function This function is to change data rate(DR) by register setting Settable data rate：10,80,160,320mS This function is to output result which averaged measure value by designated number of times. (4, 8, 16 times) When moving average is selected, internal sampling cycle becomes 5mS and data rate will be determined by 5mS×average number of times. Moving average measure function 10-0.6 10-0.08 3.0 375 ③ ② Ｙ ① Lot No. ＨＤＫ ⑥ ⑥ ⑤ ⑦ ④ ⑧ ⑧ ③ ⑨ ⑨ ② ⑦ ⑩ ⑫ ⑪ INDEX ⑩ 1.0 6-0.3 Ｘ ④ 8-0.3 ⑤ 2-0.3 ⑭ ⑬ 4-0.37 1.0 Max ⑬ ⑭ ① ⑪ ⑫ INDEX 3-0.5 3.0 4-0.4 4-0.08 ■ Outline Dimensions ■ Block Diagram VDD OSC RST INT1 INT2 INT3 DAC Control Logic Y Sensor MUX X Sensor Amplifier VDD_IO ADC 8bit Serial I/F Z Sensor SAD0 SDA SCL EEPROM GND 10/23/2009 HOKURIKU *Details are subject to change without notice. 1 Digital Output Type 3-axis Acceleration Sensor HAAM-375 ■ Terminal Assignment & Functions No 1 2 3 4 5 6 7 8 9 10 11 Terminal RST Reset signal input (Lo: Reset / Hi: Normal operation) 12 SAD0 GND Power ground INT1 INT2 INT3 SCL SDA Reserved Interrupt 1 signal output Interrupt 2 signal output Interrupt 3 signal output I2C Serial data clock input I2C Serial data input/output Please connect to GND. I2C Slave address LSB setting This terminal has pull-up resistor (300kΩTyp.) against VDD_IO built in. When Open processed, slave address LSB becomes Hi. Power supply input to drive sensor Power supply input to drive serial interface. If its voltage differs from sensor drive power supply, please connect interface power supply to this terminal. If the drive power supply is same, please short-circuit to VDD terminal. 13 VDD 14 VDD_IO Function ■ Standard Specification Ta=25℃, Vcc=2.5V Item Min. Rating Typ. Max. Unit Remark Operating Condition Temperature Range Power Supply Storage Temperature Range Operating Temperature Range Operating Voltage Range Interface Voltage Range DR=10ms DR=80ms Current Consumption DR=160ms DR=320ms Standby Current -40 -25 2.4 1.7 50 10 8 6.5 1 Turn On Time Shock Durability Electrical Characteristics Rated Acceleration Output Resolution Sampling Frequency Serial Interface Specification I2C Interface Speed 10/23/2009 2.5 85 75 3.6 VDD 100 20 15 10 3 ℃ ℃ V V µA µA µA µA µA 1 ms 5000 ±2G VDD When normal mode selected Able to change by register setting When standby mode selected Transition time from Standby to Normal mode (When NO moving average selected) G ±2 15.6 58 64 70 100, 12.5, 6.25, 3.125 400 HOKURIKU G mg/LSB 8bit output When normal mode selected LSB/G Hz Able to change by register setting kHz *Details are subject to change without notice. 2