MITSUBISHI <CONTROL / DRIVER IC> M54972P/FP Bi-CMOS 8-BIT SERIAL-INPUT LATCHED DRIVER DESCRIPTION PIN CONFIGURATION (TOP VIEW) 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. Clock T→ 1 16 → O1 Serial input S-IN → 2 15 → O2 Logic GND L-GND Power supply ● 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 ≤ 10µA) ● Serial I/O level is compatible with typical CMOS devices ● Driver features: High withstand voltage (BVCEO ≥ 30V) Capable of large drive currents (IO(max)=300mA) Low output saturation voltage VOL < 0.6V at lo=300mA ● Wide operating temperature range Ta=-20 – +75°C Latch input LATCH → 6 Driver GND P-GND 12 → O5 Parallel outputs 11 → O6 9 → O8 8 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 O8. 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 turned on, the EN input should be kept high (setting outputs O1 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. 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. BLOCK DIAGRAM Parallel outputs O1 16 EN 7 13 → O4 Outline 16P4(P) 16P2N-A(FP) FUNCTION Enable input 14 → O3 10 → O7 EN → 7 Enable input Dot drivers for thermal print heads. Serial/parallel conversion. Drivers for relays and solenoids. VCC 4 4 Serial output S-OUT ← 5 APPLICATION Power supply VCC M54972P/FP FEATURES 3 O2 15 O3 14 O4 13 O5 12 O6 11 O7 10 O8 9 8 P-GND Driver GND Q Q Q Q Q Q Q Q L D L D L D L D L D L D L D L D D Q D Q D Q D Q D Q D Q D Q D Q Latch input LATCH 6 Serial input S-IN 2 T Clock T 1 3 L-GND Logic GND T T T T T T T 5 S-OUT Serial output MITSUBISHI <CONTROL / DRIVER IC> M54972P/FP Bi-CMOS 8-BIT SERIAL-INPUT LATCHED DRIVER TIMING CHART Serial input S-IN Clock T Latch input LATCH Enable input EN O1 O2 O3 O4 Parallel outputs O5 O6 O7 O8 Serial output S-OUT ∗The shaded area shows the unstable state. INPUT/OUTPUT CIRCUIT DIAGRAM 1 Inputs with pullup resistors (EN, LATCH) 2 VCC Inputs with pulldown resistors (T, S-IN) VCC RIN RIN L-GND 3 Serial output (S-OUT) L-GND 4 VCC Parallel outputs (O1 – O8) VCC P-GND L-GND L-GND MITSUBISHI <CONTROL / DRIVER IC> M54972P/FP Bi-CMOS 8-BIT SERIAL-INPUT LATCHED DRIVER ABSOLUTE MAXIMUM RATINGS (Ta=-20 to 75°C, unless otherwise noted) Symbol Parameter VCC VI Supply voltage Input voltage VO Output voltage IO Output current Conditions S-OUT O1 – O8 : OFF O1 – O8 : ON Pd Power dissipation Topr Tstg Operating temperature Storage temperature Ta=25°C M54972P M54972FP Ratings Unit -0.5 – +8 -0.5 – VCC+0.5 -0.5 – VCC+0.5 -0.5 – +30 300 1.25 0.8 -20 – 75 -55 – 125 V V V mA W °C °C RECOMMENDED OPERATING CONDITION Symbol Parameter VCC VO Supply voltage Applied output voltage IO Output current (per circuit) Conditions O1 – O8 : OFF O1 – O8 : ON, Duty cycle < 35% O1 – O8 : ON, Duty cycle < 70% O1 – O8 : ON, Duty cycle < 15% Min. 4 Limits Typ. 5 M54972P M54972FP Max. 6 30 300 200 200 Unit V V mA ELECTRICAL CHARACTERISTICS (Ta=25°C, VCC=5V, unless otherwise noted) Symbol VIH VIL IIH IIL RIN VOH VOL IOH IOL VOL1 VOL2 VOL3 IOLK ICC1 ICC2 Parameter High-level input voltage Low-level input voltage High-level input current Low-level input current Input resistance High-level output voltage Low-level output voltage High-level output current Low-level output current Test conditions Ta=-20 – 75°C, VCC=4 – 6V T, S-IN EN, LATCH S-OUT S-OUT S-OUT S-OUT Low-level output voltage O1 – O8 Output leak current O1 – O8 Supply current Min. 0.7VCC 0 Limits Typ. VIH=5V VIL=0V Max. VCC 0.3VCC 100 -100 50 4.9 |IO|≤1µA 0.1 -100 400 VOH=4.5V VOL=0.4V Unit V V µA µA kΩ V V µA µA IOL=200mA 0.5 V IOL=300mA VO=30V (O1 – O8: OFF) Input: open, All driver outputs: OFF One driver output is ON. 0.6 50 10 7.5 V µA µA mA TIMING REQUIREMENTS (Ta=-20 to 75°C, unless otherwise noted) Symbol f(T) tw(T) tw(L) tsu th td(T-L) tr(T) tf(T) Parameter Clock frequency Clock pulse width Latch pulse width Data setup time Data hold time Clock-latch time Clock pulse rise time Clock pulse fall time Test conditions Min. Limits Typ. Max. 2 Input duty cycle: 40 – 60% 200 200 100 100 400 500 500 Unit MHz ns ns ns ns ns ns ns MITSUBISHI <CONTROL / DRIVER IC> M54972P/FP Bi-CMOS 8-BIT SERIAL-INPUT LATCHED DRIVER TIMING CHART Serial data input 2.5V S-IN 2.5V tsu th 90% Clock T 2.5V 90% 2.5V 10% 10% tw(T) tr(T) tf(T) td(T-L) Latch input 2.5V LATCH 2.5V tw(L) SWITCHING CHARACTERISTICS (Ta=25°C, VCC=5V, unless otherwise noted) Symbol tPLH tPHL tPLH tPHL tPLH tPHL Parameter Test conditions Low-to-high-level output propagation time From input T to output S-OUT High-to-low-level output propagation time From input T to output S-OUT Low-to-high-level output propagation time From input T to output ON High-to-low-level output propagation time From input T to output ON Low-to-high-level output propagation time From input EN to output ON High-to-low-level output propagation time From input EN to output ON TEST CIRCUIT Input Min. Limits Typ. Max. VIH=5V VIL=0V RL(S-OUT)=∞ RL(ON)=100Ω (N=1–8) CL=15pF 0.3 µs 0.3 µs 10 µs 5 µs 10 µs 5 µs VCC The input waveform: tr ≤ 20ns, tf ≤ 20ns RL M54972P/FP PG The capacitance CL includes the stray wiring capacitance and probe input capacitance. Output CL 50Ω TIMING CHART Clock T 2.5V 2.5V tPHL tPLH Serial output S-OUT 2.5V Enable input 2.5V EN 2.5V tPLH Output ON tPHL 2.5V 2.5V tPLH 2.5V tPHL 2.5V Unit 2.5V MITSUBISHI <CONTROL / DRIVER IC> M54972P/FP Bi-CMOS 8-BIT SERIAL-INPUT LATCHED DRIVER TYPICAL CHARACTERISTICS (VCC=5V, Ta=25°C, unless otherwise noted) Thermal derating (Absolute maximum rating) VCC vs. ICC 1.5 100 1.0 Supply current ICC (mA) Power dissipation Pd (W) M54972P M54972FP 0.5 8 Outputs ON 80 7 Outputs ON 6 Outputs ON 60 5 Outputs ON 4 Outputs ON 40 3 Outputs ON 2 Outputs ON 20 1 Output ON 0 0 0 25 50 75 3 100 4 Ambient temperature Ta (°C) 6 7 8 Supplyvoltage VCC (V) Duty cycle vs. allowable output current (M54972P) Duty cycle vs. allowable output current (M54972P) 400 400 300 1 – 8 200 Ta = 25°C, VCC = 6V Repetitive frequency >10HZ Each figure in a circle shows the number of output circuits which operate simultaneously. Current value : output current per circuit 100 0 0 20 40 60 80 300 6 7 Output current Io (mA) Output current Io (mA) 5 1 4 5 200 6 7 100 0 100 8 Ta = 75°C, VCC = 6V 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 80 100 Duty cycle (%) Duty cycle (%) Duty cycle vs. allowable output current (M54972FP) Duty cycle vs. allowable output current (M54972FP) 300 1 – 300 3 1 5 6 8 Ta = 25°C, VCC = 6V Repetitive frequency >10HZ Each figure in a circle shows the number of output circuits which operate simultaneously. Current value : output current per circuit 100 0 0 20 40 60 Duty cycle (%) 80 Output current Io (mA) Output current Io (mA) 4 200 3 200 4 Ta = 75°C, VCC = 6V Repetitive frequency >10HZ Each figure in a circle shows the number of output circuits which operate simultaneously. Current value : output current per circuit 100 6 8 0 100 – 0 20 40 60 Duty cycle (%) 80 100 2 3 MITSUBISHI <CONTROL / DRIVER IC> M54972P/FP Bi-CMOS 8-BIT SERIAL-INPUT LATCHED DRIVER Driver output VOL vs. IOL (common) Low-level output current IOL (mA) 600 Ta = -20°C Ta = 25°C Ta = 75°C 400 200 0 0 0.5 Low-level output voltage VOL (V) 1.0