HD74BC564A Octal D Type Flip Flops With 3 State Outputs ADE-205-041 (Z) Rev. 0 June 1993 Description The HD74BC564A provides high drivability and operation equal to or better than high speed bipolar standard logic IC by using Bi-CMOS process. The device features low power dissipation that is about 1/5 of high speed bipolar logic IC, when the frequency is 10 MHZ. The device has eight edge triger D type flip flops with three state outputs in a 20 pin package. Data at the D inputs meeting set up requirements, are transferred to the Q outputs on positive going transitions of the clock input. When the latch enable goes low, data at the D inputs will be retained at the outputs until latch enable returns high again. When a high logic level is applied to the output control input, all outputs go to a high impedance state, regardless of what signals are present at the other inputs and the state of the storage elements. Features • • • • Input/Output are at high impedance state when power supply is off. Built in input pull up circuit can make input pins be open, when not used. TTL level input Wide operating temperature range Ta = –40 to + 85°C HD74BC564A Function Table Inputs D Output Q L H L L L H L X Q0 X X Z Output Control L H H L X Z : : : : : Q0 : CK High level Low level Immaterial High impedance Low to high transition Level of Q before the indicated steady state input conditions were established. Pin Arrangement Output Control 1 20 VCC 1D 2 19 1Q 2D 3 18 2Q 3D 4 17 3Q 4D 5 16 4Q 5D 6 15 5Q 6D 7 14 6Q 7D 8 13 7Q 8D 9 12 8Q 10 11 CK GND (Top view) 2 HD74BC564A Absolute Maximum Ratings Item Symbol Rating Unit Supply voltage VCC –0.5 to +7.0 V Input diode current I IK ±30 mA Input voltage VIN –0.5 to +7.5 V Output voltage VOUT –0.5 to +7.5 V Off state output voltage VOUT(off) –0.5 to +5.5 V Storage temperature Tstg –65 to +150 °C Note: 1. The absolute maximum ratings are values which must not individually be exceeded, and furthermore, no two of which may be realized at the same time. Recommended Operating Conditions Item Symbol Min Typ Max Unit Supply voltage VCC 4.5 5.0 5.5 V Input voltage VIN 0 — VCC V Output voltage VOUT 0 — VCC V Topr –40 — 85 °C t r, t f 0 — 8 ns/V Operating temperature 1 Input rise/fall time* Note: 1. This item guarantees maximum limit when one input switches. Waveform: Refer to test circuit of switching characteristics. 3 HD74BC564A Logic Diagram Output Control 1D D Q CK 1Q 2D D Q CK 2Q 3D D Q CK 3Q 4D D Q CK 4Q 8D D Q CK 8Q CK 4 HD74BC564A Electrical Characteristics (Ta = –40°C to +85°C) Item Symbol Input voltage Output voltage Min Max Unit VIH 2.0 — V VIL — 0.8 V 4.5 2.4 — V I OH = –3 mA 4.5 2.0 — V I OH = –15 mA 4.5 — 0.4 V I OL = 24 mA 4.5 — 0.5 V I OL = 48 mA VOH VOL VCC(V) Test Conditions Input diode voltage VIK 4.5 — –1.2 V I IN = –18 mA Input current II 5.5 — –250 µA VIN = 0 V 5.5 — 1.0 µA VIN = 5.5 V 5.5 — 100 µA VIN = 7.0 V 1 Short circuit output current* I OS 5.5 –100 –225 mA VIN = 0 or 5.5 V Off state output current I OZH 5.5 — 50 µA VO = 2.7 V I OZL 5.5 — –50 µA VO = 0.5 V I CCL 5.5 — 29.5 mA VIN = 0 or 5.5 V All outputs is “L” I CCH 5.5 — 2.5 mA VIN = 0 or 5.5 V All outputs is “H” I CCZ 5.5 — 2.5 mA VIN = 0 or 5.5 V All outputs is “Z” I CCT*2 5.5 — 1.5 mA VIN = 3.4 or 0.5 V Supply current Notes : 1. Not more than one output should be shorted at a time and duration of the short circuit should not exceed one second. 2. When input by the TTL level, it shows I CC increase at per one input pin. 5 HD74BC564A Switching Test Method (CL = 50 pF) Ta = 25°C VCC = 5.0 V Ta = –40 to 85°C VCC = 5.0V ±10% Min Max Min Max Unit Test Conditions CK → Q t PLH 3.0 8.0 3.0 10.0 ns See under figure delay time t PHL 3.0 8.0 3.0 10.0 Output enable time t ZH 3.0 9.0 3.0 11.0 t ZL 3.0 9.0 3.0 11.0 t HZ 3.0 8.0 3.0 10.0 t LZ 3.0 8.0 3.0 10.0 t s (H) 2.0 — 2.0 — t s (L) 2.0 — 2.0 — t h(H) 2.0 — 2.0 — t h(L) 2.0 — 2.0 — t w (H) 6.0 — 6.0 — t w (L) 6.0 — 6.0 — Input capacitance CIN 3.0(Typ) — pF VIN = VCC or GND Output capacitance CO 15.0(Typ) — pF VO = VCC or GND Item Symbol Propagation Output disable time Setup time Hold time Pulse width ns ns ns ns ns Test Circuit VCC VCC Input Pulse Generator Zout = 50 Ω Pulse Generator Zout = 50 Ω Note: 6 1. 2. Input See Function Table Output OC 500 Ω 1Q to 8Q 1D to 8D CK CL includes probe and jig capacitance. OPEN: t PLH , t PHL , t ZH , t HZ , t h, t s , t w 7V: tZL, t LZ CL = 50pF 450 Ω 50 Ω Scope *2 OPEN 7V HD74BC564A Waveforms-1 tr tf 90% 1.5 V Input CK 3V 90% 1.5 V 10% 1.5 V 10% 0V tf tr 90% Input D 3V 90% 10% 10% 0V t PLH t PHL VOH 1.5 V 1.5 V Output Q VOL Waveforms-2 tr tf 90% Input CK 1.5 V 10% ts 3V 90% 1.5 V 10% tw 0V th 3V Input D 1.5 V 1.5 V 0V 7 HD74BC564A Waveforms-3 tf tr 90% Output Control 90% 1.5 V 1.5 V 10% 10% 3V 0V t LZ t ZL 3.5 V 1.5 V Waveform–A VOL + 0.3 V t ZH VOH – 0.3 V Waveform–B VOL t HZ VOH 1.5 V 0V Notes: 1. 2. 3. 4. 8 t r = 2.5 ns, tf = 2.5 ns Input waveform: PRR = 1 MHz, duty cycle 50% Waveform-A shows input conditions such that the output is “L” level when enable by the output control. Waveform-B shows input conditions such that the output is “H” level when enable by the output control. HD74BC564A Package Dimensions Unit: mm 9 Cautions 1. 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