MITSUBISHI <CONTROL / DRIVER IC> M54995P/FP Bi-CMOS 8-BIT SERIAL-INPUT LATCHED DRIVER DESCRIPTION PIN CONFIGURATION (TOP VIEW) The M54995 is a semiconductor integrated circuit consisting of 8 stages of CMOS shift registers and latches with serial inputs and Clock T → 1 16 → O1 Serial input S-IN → serial or parallel outputs. It is based on Bi-CMOS process 15 → O2 3 14 → O3 FEATURES Power supply VCC 4 Serial output S-OUT ← 5 → 6 EN → 7 10 → O7 8 9 ● Serial input and serial or parallel output ● Serial output enables cascade connection Latch input LATCH ● Built-in latch for each stage Enable input ● Enable input provides output control Driver GND P-GND ● Low supply current (standby current ICC≤10µA) M54995P/FP 2 Logic GND L-GND technology, and has 8 bipolar drivers at the parallel outputs. 13 → O4 12 → O5 Parallel outputs 11 → O6 → O8 Outline 16P4(P) 16P2N-A(FP) ● Serial I/O level is compatible with typical CMOS devices ● Driver features: High withstand voltage (BVCEO≥30V) of the next stage. ● Wide operating temperature range Ta=-20 – +75°C For parallel output. When the clock pulse changes from low to APPLICATION high, latch input (LATCH) is high and output enable input (EN) is Dot drivers for thermal print heads. Serial/parallel conversion. low the serial input data at S-IN appears at output O1 and the other Drivers for relays and solenoids. data already present is shifted sequentially to outputs O2 through O8. FUNCTION The parallel outputs are inverted. The M54995 consists of 8 stages of D-type flip flops connected to When the latch input is held low, the latch retains the stored data. 8 latches. When the EN input is high, outputs O1 through O8 all turn off. As Data is input to serial input S-IN, and clock pulses are input to the internal logic is unstable when the power is turned on, the EN clock input T. When the clock changes from low to high, the input input should be kept high (setting outputs O1 through O8 off) until data enters the first shift register and data already in the shift input data is set and the internal logic is initialized. registers is shifted sequentially. L-GND is the GND of CMOS logic circuit and P-GND is the GND of The serial output S-OUT is used to connect multiple M54995 to output driver circuits O1 through O8 which employ bipolar expand the number of parallel outputs. S-OUT is connected to S-IN transistors capable of large drive currents. BLOCK DIAGRAM Power supply VCC 4 Enable input EN 7 Parallel outputs O1 O2 O3 O4 O5 O6 O7 O8 16 15 14 13 12 11 10 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> M54995P/FP Bi-CMOS 8-BIT SERIAL-INPUT LATCHED DRIVER TIMING CHART Serial input Clock S-IN T Latch input LATCH Enable input EN O1 O2 O3 O4 Parallel outputs O5 O6 O7 O8 Serial output S-OUT *The state of the shaded part is unstable. INPUT/OUTPUT CIRCUIT DIAGRAM 1 Inputs with pullup resistor (EN, LATCH) 2 VCC Inputs with pulldown resistor (T, S-IN) VCC RIN RIN L-GND 3 Serial output (S-OUT) VCC L-GND 4 Parallel outputs (O1 – O8) VCC P-GND L-GND L-GND MITSUBISHI <CONTROL / DRIVER IC> M54995P/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 M54995P M54995FP Ta=25°C Pd Power dissipation Topr Tstg Operating temperature Storage temperature Ratings Unit -0.5 – +8 -0.5 – VCC+0.5 -0.5 – VCC+0.5 -0.5 – 30 60 1.25 0.8 -20 – 75 -55 – 125 V V V mA W °C °C RECOMMENDED OPERATING DONDITION Symbol VCC VO IO Conditions Parameter Supply voltage Output apply voltage Output current (per circuit) Min. 4 Limits Typ. 5 O1 – O8 : OFF O1 – O8 : ON Max. 6 30 50 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 IOLK ICC1 ICC2 Test conditions 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 Ta=20 – 75°C, VCC=4 – 6V S-IN, T 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 |IO|≤1µA VOH=4.5V VOL=0.4V IOL=50mA IOL=60mA VO=30V Input: open, All driver outputs: OFF One driver output is ON. Max. VCC 0.3VCC 100 -100 50 4.9 0.1 -100 400 0.5 0.6 50 10 3 Unit V V µA µA kΩ V V µA µA V 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. Input duty cycle: 40 – 60% Limits Typ. Max. 2 200 200 100 100 400 500 500 Unit MHz ns ns ns ns ns ns ns MITSUBISHI <CONTROL / DRIVER IC> M54995P/FP Bi-CMOS 8-BIT SERIAL-INPUT LATCHED DRIVER TIMING CHART Serial data input 2.5V S-IN 2.5V th tsu 90% Clock T 2.5V 90% 2.5V 10% 10% tw(T) tf(T) tr(T) td(T-L) 2.5V Latch input 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 Min. Limits Typ. Low-to-high-level output propagation time From input T to output S-OUT VIL=0V RL(ON)=100Ω From input T to output ON CL=15pF 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 CL 50Ω TIMING CHART 2.5V 2.5V tPHL tPLH Serial output S-OUT 2.5V Enable input 2.5V EN 2.5V tPLH Output ON µs 10 µs 5 µs 10 µs 5 µs The input waveform: tr ≤ 20ns, tf ≤ 20ns The capacitance CL includes the wiring stray capacitance and probe input capacitance. Output M54995P/FP T 0.3 VCC RL Clock µs (N=1–8) High-to-low-level output propagation time From input T to output ON PG 0.3 RL(S-OUT)=∞ Low-to-high-level output propagation time Input Unit VIH=5V High-to-low-level output propagation time From input T to output S-OUT TEST CIRCUIT Max. tPHL 2.5V 2.5V tPHL tPLH 2.5V 2.5V 2.5V MITSUBISHI <CONTROL / DRIVER IC> M54995P/FP Bi-CMOS 8-BIT SERIAL-INPUT LATCHED DRIVER TYPICAL CHARACTERISTICS (Ta=25°C, VCC=5V, unless otherwise noted) Thermal derating (Absolute maximum rating) Duty cycle vs. output current (M54995P/FP) 100 1.5 1.0 Output current IOL (mA) Power dissipation Pd (W) M54995P M54995FP 0.5 75 50 1 Ta = 75°C Repetitive frequency >10HZ Each figure in a circle shows the number of output circuits which operate simultaneously. Current value : output current per circuit 25 0 0 0 25 50 75 0 100 Ambient temperature Ta (°C) 20 40 60 80 100 Duty cycle (%) VCC vs. ICC (Only one output is ON.) Driver output VOL vs. IOL 100 6 Supply current ICC (mA) Low-level output current IOL (mA) 7 50 Ta = -20°C Ta = 25°C 5 Ta = 75°C 4 3 2 1 0 0 0 100 200 300 400 Low-level output voltage VOL (mV) 500 0 5 Supply voltage VCC (V) 10 – 8