functional interrupt output function reduces y our 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: (3 a max.) normal mode:100 a max. (when dr=10ms selected) ? various calibrations are done by built-in eeprom additional function outline dimensions block diagram item function data rate change function this function is to change data rate(dr) by register setting settable data rate 10,80,160,320ms moving average measure function this function is to output result which averaged meas ure value by designated number of times. (4, 8, 16 times) when moving average is selected, internal sa mpling cycle becomes 5ms and data rate will be determined by 5msaverage number of times. control logic eeprom dac z sensor y sensor x sensor gnd vdd amplifier mux osc int1 scl sda serial i/f int2 adc 8bit int3 rst vdd_io sad0 digital output type 3-axis acceleration senso r HAAM-375 1.0 max index 3.0 3.0 lot no. 10-0.6 10-0.08 index 6-0.3 8-0.3 4-0.08 4-0.37 2-0.3 4-0.4 1.0 3-0.5 ?? ? ? ? ? ?? 375 1 hokuriku *details are subject to change without notice. 10/23/2009
terminal assignment & functions standard specification no terminal function 1 rst reset signal input (lo: reset / hi: normal operation) 2 3 4 5 gnd power ground 6 int1 interrupt 1 signal output 7 int2 interrupt 2 signal output 8 int3 interrupt 3 signal output 9 scl i2c serial data clock input 10 sda i2c serial data input/output 11 reserved please connect to gnd. 12 sad0 i2c slave address lsb setting this terminal has pull-up resistor (300k typ.) against vdd_io built in. when open processed, slav e address lsb becomes hi. 13 vdd power supply input to drive sensor 14 vdd_io power supply input to drive serial interface. if its volt age differs from sensor driv e power supply, please connect interface power supply to this termi nal. if the drive power supply is same, please short-circuit to vdd terminal. digital output type 3-axis acceleration senso r HAAM-375 2 hokuriku *details are subject to change without notice. 10/23/2009 ta = 2 5 , vcc=2.5 v min. typ. max. operating condition storage temperature range -40 85 operating temperature range -25 75 operating voltage range 2.4 2.5 3.6 v vdd 1.7 vdd v dr=10ms 50 100 a dr=80ms 10 20 a dr=160ms 8 15 a dr=320ms 6.5 10 a standby current 1 3 a when standby mode selected turn on time 1 ms transition time from standby to normal mode (when no moving average selected) shock durability 5000 g electrical characteristics rated acceleration 2 g 15.6 mg/lsb 58 64 70 lsb/g sampling frequency 100, 12.5, 6.25, 3.125 hz able to change by register setting serial interface specification i2c interface speed 400 khz 2g 8bit output when normal mode selected output resolution when normal mode selected able to change by register setting power supply item current consumption interface voltage range remark unit rating temperature range
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