DESCRIPTION The M54972 is a semiconductor integrated circuit consisting of 8 stages of CMOS shift registers and latches with serial inputs and serial or parallel outputs. It is based on Bi-CMOS process technology, and has 8 bipolar drivers at the parallel outputs. FEATURES @ Serial input and serial or parallel output @ Serial output enables cascade connection @ Built-in latch for each stage @ Enable input provides output control @ Low supply current (standby current Icc < 10pA) @ Serial {/O levet is compatible with typical CMOS devices @ Driver features: High withstand voltage (BVcEeo 2 30V) Capable of large drive currents (lo(max)=300mA) Low output saturation voltage Vot < 0.6V at lo=300MA @ Wide operating temperature range Ta=-20 ~ +76C APPLICATION Dot drivers for thermal print heads. Serial/parallel conversion. Drivers for relays and solenoids. FUNCTION The M54972 consists of 8 stages of D-type flip flops connected to 8 latches. Data is input to serial input S-IN, and clock pulses are input to clock input T. When the clock changes from low to high, the input data enters the first shift register and data already in the shift registers is shifted sequentially. The serial output S-OUT is used to connect multiple M54972 to expand the number of parallel outputs. S-OUT is connected to S-IN of the next stage. . Bi-CMOS 8-BIT SERIAL-INPUT LATCHED DRIVER MITSUBISHI <CONTROL / DRIVER IC> M54972P/FP PIN CONFIGURATION (TOP VIEW) ar Clock TE] 16] 07 Serial input S-IN -[ 2 | 15] 02 LogicGND L-GND [3] 2 Se Power supply Vee [4] 13] +04 Parallel outputs Serial output S-OUT<| 5 3 12] +65 Latch input LATCH [6] Ba] 08 Enable input EN | 7 10] -O7 DriverGND P-GND [8 [9 ]08 Outline 16P4(P) 16P2N-A(FP) For parallel output. When the clock pulse changes from low to high, latch input (LATCH) is high and output enable input (EN) is low the serial input data at 'S-IN appears at output O1 and the other data already present is shifted sequentially to outputs O2 through 8. The parallel outputs are inverted. When the latch input is held low, the latch retains the stored data. When the EN input is high, outputs O1 through O8 all turn off. As the internal logic is unstable when the power is tumed on, the EN input should be kept high (setting outputs Of through O8 off) until input data is set and the internal logic is initialized. L-GND is the GND of CMOS logic circuit and P-GND is the GND of output driver circuits o1 through O8 which employ bipolar transistors capable of large drive currents. * L-GND tania PAIN BLOCK DIAGRAM Parallel outputs A... c OT 62 O38 O4 OS 66 OF 08 ~ (6) ~ 44 (3)_{(12)- (19) _{9) () @) oO Power supply Vec /\ {\ /\ /\ {\ {\ P-GND Driver GND Enable input EN(7) Lf > | | Q Q Q Q Q Q Q Q \ 3 LoD L DB LD LD L. Bb Lt DO LO L DB Latch input LATCH(6 > i 4 1 t l i it Serial input S-IN D = D 4 D QHD 4 D =| D il D 31 DQ S-OUT Seria! output T T T T T T T T Clock T MITSUBISHI <CONTROL / DRIVER IC> M54972P/FP Bi-CMOS 8-BIT SERIAL-INPUT LATCHED DRIVER TIMING CHART Serial input S-IN Clock Aidt Tit Litt Lt tt tt ty Ltt Latch input LATCH | | a Enabie input U ~ QI | gI Q cooe|ec Paratlel outputs < gl gl hh Qo st coor gl \ Serial output S-OUT ** The shaded area shows the unstable state. INPUT/OUTPUT CIRCUIT DIAGRAM 1 Inputs with pullup resistors 2 Inputs with pulldown resistors (EN, LATCH) Voc (T, S-IN) Voc Rin Rin L-GND L-GND 3 Serial output 4 Parallel outputs (S-OUT) Vee (01 - 08) Lo ' | I } P-GND x AI RIE .MITSUBISHI <CONTROL / DRIVER IC> M54972P/FP Bi-CMOS 8-BIT SERIAL-INPUT LATCHED DRIVER ABSOLUTE MAXIMUM RATINGS (Ta=-20 to 75C, unless otherwise noted) - Symbot Parameter Conditions Ratings Unit Voc Supply voltage 0.5 +8 Vv Mi Input voltage -0.5 ~ Vec+0.5 Vv S-OUT -0.5 Vcc+0.5 Vo Output voltage paves Ot 08: OFF 0.5 ~ +30 V lo Output current O01 ~ 08 - ON 300 mA og M54972P 1.25 Pa Power dissipation Ta=25C pa ae M54972FP 08 Ww Topr Operating temperature -20 - 75 C Tstg Storage ternperature -65 ~ 125 C RECOMMENDED OPERATING CONDITION sgt Limits . Symbol Parameter Conditions . Unit Min. Typ. {| Max. Vcc Supply voltage 4 5 6 Vv Vo Applied output voitage Oj 08 : OFF 30 V O71 ~ 08 : ON, Duty cycle < 35% M54972P 300 lo Output current (per circuit) Oi 68 : ON, Duty cycle < 70% 200 mA O71 - 08 : ON, Duty cycle < 15% _|M54972FP 200 ELECTRICAL CHARACTERISTICS (Ta=25C, Vcc=5V, unless otherwise noted) sat Limits . Symbol Parameter Test conditions Min.) Typ.) Max. Unit Vin High-level input voltage . 5 _ 0.7Vcc Veco Vv Vit Low-level input voltage Tar-20 ~ 75C, Veo=4 ~ BV 0 0.3Vcc| Vv lit High-level input current [| T, S-IN Vin=5V 100 LA te Low-level input current |EN, LATCH Vit=0V -100 pA Rin Input resistance 50 kQ VoH High-level output voltage | S-OQUT lol<1uA 49 Vv Vou Low-level output voltage | S-OUT lojsty 04 V lou High-level output current | S-OUT Von=4.5V -100 pA lo Low-level output current | S-OUT Vor=0.4V 400 pA Vou a= = = 0.5 Voie Low-level output voitage 1~08 loL=200mA VoL3 loL=300MA 0.6 Vv ioLK Output leak current 51-08 Vo=30V (01 O08: OFF) 50 LA Icc1 Input: open, All driver outputs: OFF 10 pA t loca Supply curren One driver output is ON. 7.5 mA TIMING REQUIREMENTS (Ta=-20 to 75C, unless otherwise noted) ys Limits ; Symbol Parameter Test conditions Min. Typ. | Max. Unit fq) Clock frequency Input duty cycle: 40 60% 2 MHz tw(T) Clock pulse width 200 ns twiL) Latch pulse width 200 ns tsu Data setup time 100 ns th Data hold time 100 ns tacT-L) Clock-latch time 400 ns tet) Clock pulse rise time 500 ns nn Clock pulse fall time 500 nsMITSUBISHI <CONTROL / DRIVER IC> M54972P/FP Bi-CMOS 8-BIT SERIAL-INPUT LATCHED DRIVER TIMING CHART ee cet me mene ae mee care te meet ee ee ee Serial data input S-IN ~ 90% Clock \ 10% ti tacT-L) Latch input LATCH y, 2.5V 2.5V twil} SWITCHING CHARACTERISTICS (Ta=25C, Vcc=5V, unless otherwise noted) a: Limits T . Symbol Parameter est conditions Min. Typ. | Max. Unit teu Low-to-high-level output propagation time 0.3 us From input T to output S-OUT tpHe High-to-low-level output propagation time 03 us From input T to output S-OUT Vin=5V tpn Low-to-high-level output propagation time Vit=0V 10 BS From input T to output On Ri(S-OUT) = tpn High-to-low-level output propagation time Ri(On)=1002 5 L " us From input T to output On (N=1-8) tun Low-to-high-level output propagation time Cy=15pF 10 us From input EN to output ON tPHL High-to-low-level output propagation time 5 us From input EN to output ON TEST CIRCUIT nput Voc The input waveform: i <20ns, ts 20ns Ri + The capacitance Ct includes the stray | wiring capacitance and probe input PG M54972P/FP Output capacitance. 50Q CL ar | TIMING CHART Clock T 7 2.5V 2.5V tPLH tPHL Serial output S-OUT , 2.5V 2.5V Enable input ENMITSUBISHI <CONTROL / DRIVER IC> M54972P/FP TYPICAL CHARACTERISTICS (Vcc=5V, Ta=25C, unless otherwise noted) Output current lo (mA) Power dissipation Pd (W) Output current fo (mA) 1.5 1.0 0.5 400 300 200 100 Thermal derating (Absolute maximum rating) M54972P M54972FP S 0 25 50 75 Ambient temperature Ta (C) 100 Duty cycle vs. allowable output current (M54972P) SJ Ng *Ta = 26C, Voc = 6V + Repetitive frequency >10Hz of output circuits which operate simultaneously. Current value ; output current per circuit -Each figure in a circle shows the number | 0 20 40 60 80 Duty cycle (%) 100 Duty cycle vs. allowable output current 300 200 100 (M54972FP) \ AS O-@ @ XS x eTa = 25C, Voc = 6V i L, Li) Repetitive frequency >10Hz Each figure in a circle shows the number of output circuits which operate simultaneously. Current value : output current per circuit 0 20 40 60 80 Paty eurcle fo) 700 Supply current icc (mA) Output current fo (mA) Output current lo (mA) Vcc vs. loc Bi-CMOS 8-BIT SERIAL-INPUT LATCHED DRIVER 8 Outputs ON 7 Outputs ON 6 Outputs ON 5 Outputs ON 4 Outputs ON 3 Outputs ON 2 Outputs ON 1 Output ON 3 4 5 6 7 8 Supplyvoltage Vcc (V) Duty cycle vs. allowable output current (M54972P) 400 300 Q-@ REE @ =r SWe Ta = 75C, Voc = 6V 100 |" Repetitive frequency >10Hz 4 Each figure in a circle shows the number of output circuits which operate simultaneously. ot Current value : output current per circuit 0 20 40 60 80 100 Duty cycle (%) Duty cycle vs. allowable output current (M54972FP) 300 1 V N O@ \ N IN NY \ 200 N Y NN NN NOON 100 |+Ta = 75C, Voc = 6V \ DN, Repetitive frequency >10Hz N Each figure in a circle shows a ~ the number of output circuits which operate simuttaneously. 0 Current value : output current per circuit al L i 0 20 40 60 80 100 Daity cucia (1Low-level output current lot (mA) 600 400 200 Driver output Vot vs. lo. (common) Ta= -20C ae 102 eG Lo so Uy Uy vy 0 05 4.0 Low-level output voltage Vor (V) MITSUBISHI <CONTROL / DRIVER IC> M54972P/FP Bi-CMOS 8-BIT SERIAL-INPUT LATCHED DRIVER