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  48 pg001m serial signal generator ic for sla7042m and sla7044m pg001m clock_in clock_out data strobe t cc t cs 1/f 1/f clock_out data strobe 90% 10% tr tf clock_in reset mo ms1 ms2 cw/ccw vc a b c dcdc d c d excitation switching point vc switching occurs only while clock-in level is l. fig. 1 fig. 3 timing conditions fig.2 (t a =25 c) parameter symbol conditions ratings units min typ max supply voltage v dd 4.5 5.5 v supply current i dd v dd =5.5v 0.35 0.45 ma output voltage v oh v dd =5v, i o = 3ma 4.5 v v ol 0.4 input current i i v dd =5v, v i =0 or 5v 1 a input voltage v ih v dd =5v 3.5 5 v v il ? 0.3 1.5 input hysteresis voltage v h v dd =5v 1 v input capacity c i v dd =5v 5 10 pf internal oscillation frequency f v dd =5v 1.5 mhz propagation delay time t cs see fig. 1. 50 100 ns t cc 430 550 output voltage t r v dd =5v, c l =15pf 20 ns rise and fall time t f see fig. 2. 20 clock in terminal v cih h level time, v dd =5v 4.5 s input clock time v cil l level time, v dd =5v 0.5 reset setting time (a) ts r inter-clock 100 ns stabilization time after reset (b) tps r see fig. 3. signal setting time (c) ts s inter-clock stabilization time after tps s see fig. 3. 100 ns signal input (d) parameter symbol ratings units supply voltage v dd ? 0.5 to 7 v input voltage v i ? 0.5 to v dd +0.5 v input current i i 10 ma output voltage v o ? 0.5 to v dd +0.5 v output current i o 15 ma power dissipation p d 200 mw operating temperature t op ? 20 to +85 c storage temperature t stg ? 40 to +150 c  absolute maximum ratings (t a =25 c)  electrical characteristics dc characteristics ac characteristics
49 pg001m pg001m serial signal generator ic for sla7042m and sla7044m  internal block diagram (a) excitation mode setting section ms1 6 ms1 7 vc 2h a b c q1 q2 q3 q4 phase 15 gnd 8 vdd set 16 clock_out 14 data_a 11 data_b 10 strobe 13 cp1 5 cp2 4 nc 12 mo 9 clock_in 2 reset 1 cw/ccw 3 (b) parallel signal generator (c) parallel-serial signal converter (d) up/down counter (e) oscillator ... input ... output number inside shape indicates pin number. fix all open input pins to h or l (apart from cp1, cp2 and nc pins)  diagram of standard external circuit 5v 16 mpu vdd reset clock_in clock _out clock_a clock_b strobe_a sla7042m sla7044m strobe_b data_a data_b strobe data_a data_b cw/ccw ms1 ms2 vc mo nc gnd cp1 cp2 1 14 13 11 10 2 3 6 7 15 12 nc nc nc rs rs 85 4 9 p g 0 0 1 m
50 pg001m pg001m serial signal generator ic for sla7042m and sla7044m  output mode vs output pulse output pulse out excitation output pulse out excitation clock _out strobe 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 phase a 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 b c phase a b c clock _out strobe output mode output mode  external dimensions 19.2 20.0max 6.3 6.65max 16 9 1 0.89 lot no. part no. 2.54 0.25 0.48 0.10 0.51min 2.54min 5.08max 1.3 8 7.62 0.25 +0.11 ? 0.05 0 to 15 c (unit: mm)
51 pg001m pg001m serial signal generator ic for sla7042m and sla7044m  input and output function correlation table input output mode reset mo strobe clock _in cw /ccw clock _out data -a cw ccw cw lh lh hh hh l l ccw reset cw ccw data -b output mode 4 or 7 output mode input mode 4 or 7 output mode : don't care ? : mo outputs l level while clock_in is h level when output mode is 4:4 (7:7), 4:4 (7:7), 4:4 (7:7),or 4:4 (7:7). modes in brackets ( ) are for 2-2 phase vc: h.  excitation selection table  output mode sequence excitation method input 0 vc h l l l h l l l ? ? ? ? ? ? ? ? ? ? ? ? ? ?? ? ? ? ? ? ? ? l h hh ms1 ms2 0% 20% 40% 55.5% 71.4% 83% 91% 100% 141% 100% 100% 100% 100% 1234567 output current mode of sla7042m/7044m excitation mode selection torque vector 2-2 phase full step 1-2 phase half step w1-2 phase 1/4 step 2w1-2 phase 1/8 step excitation method 2-2 phase full step (1) (vc: h) 2-2 phase full step (2) (vc: l) 1-2 phase half step w1-2 phase 1/4 step 2w1-2 phase 1/8 step 1 h = = = = = = = = = = = = = = = = 3 5 5 3 clock mo data_a data_b data_a data_b data_a data_b data_a data_b data_a data_b data_a data_b data_a data_b data_a data_b data_a data_b data_a data_b cw/ccw cw ccw cw ccw cw ccw cw ccw cw ccw l 7 7 7 7 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 2 h = = = = = = = = = = = = 2 6 6 2 2 6 6 2 3 h = = = = = = = = = = = = = = = = 1 7 7 1 4 h = = = = = = = = 0 7 7 0 0 7 7 0 0 7 7 0 5 h = = = = = = = = = = = = = = = = 1 7 7 1 6 h = = = = = = = = = = = = 2 6 6 2 2 6 6 2 7 h = = = = = = = = = = = = = = = = 3 5 5 3 8 l 7 7 7 7 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 9 h = = = = = = = = = = = = = = = = 5 3 3 5 10 h = = = = = = = = = = = = 6 2 2 6 6 2 2 6 11 h = = = = = = = = = = = = = = = = 7 1 1 7 12 h = = = = = = = = 7 0 0 7 7 0 0 7 7 0 0 7 13 h = = = = = = = = = = = = = = = = 7 1 1 7 14 h = = = = = = = = = = = = 6 2 2 6 6 2 2 6 15 h = = = = = = = = = = = = = = = = 5 3 3 5 16 l 7 7 7 7 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 17 h = = = = = = = = = = = = = = = = 3 5 5 3 18 h = = = = = = = = = = = = 2 6 6 2 2 6 6 2 19 h = = = = = = = = = = = = = = = = 1 7 7 1 20 h = = = = = = = = 0 7 7 0 0 7 7 0 0 7 7 0 21 h = = = = = = = = = = = = = = = = 1 7 7 1 22 h = = = = = = = = = = = = 2 6 6 2 2 6 6 2 23 h = = = = = = = = = = = = = = = = 3 5 5 3 24 l 7 7 7 7 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 25 h = = = = = = = = = = = = = = = = 5 3 3 5 26 h = = = = = = = = = = = = 6 2 2 6 6 2 2 6 27 h = = = = = = = = = = = = = = = = 7 1 1 7 28 h = = = = = = = = 7 0 0 7 7 0 0 7 7 0 0 7 29 h = = = = = = = = = = = = = = = = 7 1 1 7 30 h = = = = = = = = = = = = 6 2 2 6 6 2 2 6 31 h = = = = = = = = = = = = = = = = 5 3 3 5 32 l 7 7 7 7 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 reset = : no output
52 pg001m pg001m serial signal generator ic for sla7042m and sla7044m  output timing chart (cw) excitation current of sla7042m/7044m reset clock_in 2-2 phase full step (vc: h) 1-2 phase half step w1-2 phase 1/4 step 2w1-2 phase 1/8 step b a b a b a b a for 2-2 phase vc : l, output mode is 7 4. 7 7 7 0 7 2 0 2 4 4 2 6 0 3 5 6 2 7 1 7 0 7 1 6 2 5 3 4 4 3 5 2 6 1 7 0 7 1 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 77 6 5 4 3 5 4 3 2 1 0 1 2 3 4 5 6 7 7 7 6 5 4 3 2 7 2 6 4 4 6 2 7 0 6 2 4 4 2 6 0 7 2 6 4 4 6 7 6 4 4 0 4 4 0 7 4 4 7 0 4 4 7 7 7 7 77 7 7 mo 4 4 mo 4 4 mo 4 4 mo
53 pg001m pg001m serial signal generator ic for sla7042m and sla7044m  output timing chart (ccw) excitation current of sla7042m/7044m reset clock_in 2-2 phase full step (vc: h) 1-2 phase half step w1-2 phase 1/4 step 2w1-2 phase 1/8 step for 2-2 phase vc:l, output mode is 7 4. 7 7 mo 4 4 mo 4 4 mo 4 4 mo b a b a b a b a 7 0 7 2 0 2 4 4 2 6 0 3 5 6 2 7 1 7 0 7 1 6 2 5 3 4 4 3 5 2 6 1 7 0 7 1 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 77 6 5 4 3 1 0 1 2 3 4 5 2 3 4 5 6 7 7 7 6 5 4 3 2 7 2 6 4 4 6 2 0 7 6 2 4 4 2 0 6 7 2 6 4 4 6 7 6 4 4 0 4 4 0 7 4 0 4 7 4 4 7 7 7 7 7 7 7 7


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