Document
74ACT174
HEX D-TYPE FLIP FLOP WITH CLEAR
PRELIMINARY DATA
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HIGH SPEED: fMAX = 200 MHz (TYP.) at VCC = 5V LOW POWER DISSIPATION: ICC = 8 µA (MAX.) at TA = 25 oC COMPATIBLE WITH TTL OUTPUTS VIH = 2V (MIN), VIL = 0.8V (MAX) 50Ω TRANSMISSION LINE DRIVING CAPABILITY SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24 mA (MIN) BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL OPERATING VOLTAGE RANGE: VCC (OPR) = 4.5V to 5.5V PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 174 IMPROVED LATCH-UP IMMUNITY
B M (Plastic Package) (Micro Package) ORDER CODES : 74ACT174B 74ACT174M TTL. Information signals applied to D inputs are transfered to the Q output on the positive going edge of the clock pulse. When the CLEAR input is held low, the Q outputs are held low independentelyof the other inputs . The device is designed to interface directly High Speed CMOS systems with TTL, NMOS and CMOS output voltage levels. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.
DESCRIPTION The ACT174 is an high-speed CMOS HEX D-TYPE FLIP FLOP WITH CLEAR fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ideal for low power applications mantaining high speed operation similar to eqivalent Bipolar Schottky
PIN CONNECTION AND IEC LOGIC SYMBOLS
May 1997
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INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
PIN No 1 2, 5, 7, 10, 12, 15 3, 4, 6, 11, 13, 14 9 8 16 SYMBOL CLEAR Q0 to Q5 D0 to D5 CLOCK GND VCC NAME AND F UNCTIO N Asyncronous Master Reset (Active LOW) Flip-Flop Outpus Data Inputs Clock Input (LOW-to-HIGH, Edge- Triggered) Ground (0V) Positive Supply Voltage
TRUTH TABLE
INPUTS CL EAR L H H H
X: Don’t Care
O UTPUTS CLOCK X Q L L H Qn
FUNCTION CLEAR
D X L H X
NO CHANGE
LOGIC DIAGRAM
This logic diagram has not be used to estimate propagation delays
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ABSOLUTE MAXIMUM RATINGS
Symbol VCC VI VO IIK IOK IO Tstg TL Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Current Storage Temperature Lead Temperature (10 sec) Parameter Value -0.5 to +7 -0.5 to VCC + 0.5 -0.5 to VCC + 0.5 ± 20 ± 20 ± 50 ± 300 -65 to +150 300 Unit V V V mA mA mA mA
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ICC or IGND DC VCC or Ground Current
C C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
RECOMMENDED OPERATING CONDITIONS
Symbol VCC VI VO Top dt/dv Supply Voltage Input Voltage Output Voltage Operating Temperature: Input Rise and Fall Time VCC = 4.5 to 5.5V (note 1) Parameter Valu e 4.5 to 5.5 0 to VCC 0 to VCC -40 to +85 8 Unit V V V
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ns/V
1) VIN from 0.8 V to 2.0 V
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DC SPECIFICATIONS
Symbol Parameter V CC (V) VIH VIL VOH High Level Input Voltage Low Level Input Voltage High Level Output Voltage 4.5 5.5 4.5 5.5 4.5 5.5 4.5 5.5 VOL Low Level Output Voltage 4.5 5.5 4.5 5.5 II ICCT ICC .