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Details, datasheet, quote on part number:74VHCT574ATTR
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Datasheet text preview:
74VHCT574A
OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUTS NON INVERTING
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H IGH SPEED: fMAX = 180 MHz (TYP.) at VCC = 5V LOW POWER DISSIPATION: ICC = 4 µA (MAX.) at TA=25°C C OMPATIBLE WITH TTL OUTPUTS: VIH = 2V (MIN.), VIL = 0.8V (MAX) POWER DOWN PROTECTION ON INPUTS & OUTPUTS SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 8 mA (MIN) BALANCED PROPAGATION DELAYS: tPLH tPHL OPERATING VOLTAGE RANGE: VCC(OPR) = 4.5V to 5.5V PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 574 IMPROVED LATCH-UP IMMUNITY LOW NOISE: VOLP = 0.9V (MAX.)
SOP
TSSOP
ORDER CODES
PACKAGE SOP TSSOP TUBE 74VHCT574AM T&R 74VHCT574AMTR 74VHCT574ATTR
DESCRIPTION The 74VHCT574A is an advanced high-speed CMOS OCTAL D-TYPE FLIP FLOP with 3 STATE OUTPUTS NON INVERTING fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. These 8 bit D-Type flip-flop is controlled by a clock input (CK) and an output enable input (OE). On the positive transition of the clock, the Q outputs will be set to the logic states that were setup at the D inputs. PIN CONNECTION AND IEC LOGIC SYMBOLS
W hen the (OE) input is low, the 8 outputs will be in a normal logic state (high or low logic level) and when (OE) is high, the outputs will be in a high impedance state. The Output control does not affect the internal operation of flip flop; that is, the old data can be retained or the new data can be entered even while the outputs are off. Power down protection is provided on all inputs and outputs and 0 to 7V can be accepted on inputs with no regard to the supply voltage. This device can be used to interface 5V to 3V since all inputs are equipped with TTL threshold. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.
June 2001
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74VHCT574A
INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
PIN No 1 2, 3, 4, 5, 6, 7, 8, 9 12, 13, 14, 15, 16, 17, 18, 19 11 10 20 SYMBOL OE D0 to D7 Q0 to Q7 NAME AND FUNCTION 3-State Output Enable Input (Active LOW) Data Inputs 3-State Outputs
CK GND VC C
Clock Input (LOW-to-HIGH Edge Triggered) Ground (0V) Positive Supply Voltage
TRUTH TABLE
INPUTS OE H L L L
X : Don't Care Z : High Impedance
OUTPUT D X X L H Q Z NO CHANGE L H
CK X
LOGIC DIAGRAM
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74VHCT574A
AB SOLUTE MAXIMUM RATINGS
Symbol V CC VI VO VO IIK IOK IO Supply Voltage DC Input Voltage DC Output Voltage (see note 1) DC Output Voltage (see note 2) DC Input Diode Current DC Output Diode Current DC Output Current Parameter Value -0.5 to +7.0 -0.5 to +7.0 -0.5 to +7.0 -0.5 to VCC + 0.5 - 20 ± 20 ± 25 ± 50 -65 to +150 300 Unit V V V V mA mA mA mA °C °C
ICC or IGND DC VCC or Ground Current Tstg Storage Temperature TL Lead Temperature (10 sec)
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied 1) Output in OFF State 2) High or Low State
RECOMMENDED OPERATING CONDITIONS
Symbol V CC VI VO VO Top dt/dv Supply Voltage Input Voltage Output Voltage (see note 1) Output Voltage (see note 2) Operating Temperature Input Rise and Fall Time (see note 3) (VCC = 5.0 ± 0.5V) Parameter Value 4.5 to 5.5 0 to 5.5 0 to 5.5 0 to VCC -55 to 125 0 to 20 Unit V V V V °C ns/V
1) Output in OFF State 2) High or Low State 3) VIN from 0.8V to 2V
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74VHCT574A
DC SPECIFICATIONS
Test Condition Symbol Parameter VCC (V) 4.5 to 5.5 4.5 to 5.5 4.5 4.5 4.5 4.5 4.5 to 5.5 0 to 5.5 5.5 5.5 0 IO=-50 µA IO=-8 mA IO=50 µA IO=8 mA VI = VIH or VIL VO = 0V to 5.5V VI = 5.5V or GND VI = VCC or GND One Input at 3.4V, other input at VCC or GND VOUT = 5.5V TA = 25°C Min. 2 0.8 4.4 3.94 0.0 0.1 0.36 ±0.25 ± 0.1 4 1.35 0.5 4.5 4.4 3.8 0.1 0.44 ± 2.5 ± 1.0 40 1.5 5.0 Typ. Max. Value -40 to 85°C Min. 2 0.8 4.4 3.7 0.1 0.55 ± 2.5 ± 1.0 40 1.5 5.0 Max. -55 to 125°C Min. 2 0.8 Max. V V V V µA µA µA mA µA Unit
VIH VIL VOH VOL Ioz
High Level Input Voltage Low Level Input Voltage High Level Output Voltage Low Level Output Voltage High Impedance Output Leakege Current Input Leakage Current Quiescent Supply Current Additional Worst Case Supply Current Output Leakage Current
II ICC
IC C
IOPD
AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3ns)
Test Condition Symbol Parameter VC C (V) 5.0(*) 5.0
(*)
Value TA = 25°C Min. Typ. 5.5 7.0 Max. 8.6 10.6 9.0 11.0 10.1 -40 to 85°C Min. 1.0 1.0 1.0 1.0 1.0 80 Max. 10.0 12.0 10.5 12.5 11.5 -55 to 125°C Min. 1.0 1.0 1.0 1.0 1.0 80 Max. 10.0 12.0 10.5 12.5 11.5 ns Unit
CL (pF) 15 50 15 50 50 15 50 50 RL = 1K RL = 1K
tPLH tPHL tP Z L tPZH tPLZ tPHZ fMAX tOSLH tOSHL
Propagation Delay Time CK to Q Output Enable Time Output Disable Time Maximum Clock Frequency Output to Output Skew time (note 1)
5.0(*) 5.0(*) 5.0(*) 5.0(*) 5.0(*) 5.0(*)
5.0 6.0 7.0 90 85 140 130
ns ns MHz
1.5
1.5
1.5
ns
(*) Voltage range is 5.0V ± 0.5V Note 1 : Parameter guaranteed by design. tsoLH = |t pLHm - t pLHn|, t soHL = |tpHLm - tpHLn |
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74VHCT574A
CA PACITIVE CHARACTERISTICS
Test Condition Symbol Parameter Min. CIN CO U T CPD Input Capacitance Output Capacitance Power Dissipation Capacitance (note 1) TA = 25°C Typ. 4 9 25 Max. 10 Value -40 to 85°C Min. Max. 10 -55 to 125°C Min. Max. 10 pF pF pF Unit
1) CPD is defined as the value of the IC's internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/8 (per Flip-Flop)
DYNAMIC SWITCHING CHARACTERISTICS
Test Condition Symbol Parameter VCC (V) 5.0 TA = 25°C Min. Typ. 1.2 -1.6 CL = 50 pF 3.5 -1.2 V Max. 1.6 Value -40 to 85°C Min. Max. -55 to 125°C Min. Max. Unit
VOLP VOLV VIHD
VILD
Dynamic Low Voltage Quiet Output (note 1, 2) Dynamic High Voltage Input (note 1, 3) Dynamic Low Voltage Input (note 1, 3)
5.0
5.0
1.5
1) Worst case package. 2) Max number of outputs defined as (n). Data inputs are driven 0V to 3.0V, (n-1) outputs switching and one output at GND. 3) Max number of data inputs (n) switching. (n-1) switching 0V to 3.0V. Inputs under test switching: 3.0V to threshold (VILD), 0V to threshold (VIHD), f=1MHz.
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