74VHC174
74VHC174 is HEX D-TYPE FLIP FLOP WITH CLEAR manufactured by STMicroelectronics.
DESCRIPTION
The 74VHC174 is an advanced high-speed CMOS HEX D-TYPE FLIP FLOP WITH CLEAR fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. Information signals applied to D inputs are
PIN CONNECTION AND IEC LOGIC SYMBOLS
June 1999
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INPUT 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 FUNCT ION Asyncronous Master Reset (Active LOW) Flip-Flop Outputs 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
OUT PUT S CLO CK X Q L L H Qn
F UNCTIO N CLEAR
D X L H X
NO CHANGE
LOGIC DIAGRAM
Thislogic diagram has notbe 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 -0.5 to +7.0 -0.5 to VCC + 0.5
- 20 ± 20 ± 25 ± 50 -65 to +150 300 Unit V V V m A m A m A m A o o
ICC or IGND DC VCC or Ground Current
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
REMENDED OPERATING CONDITIONS
Symbol VCC VI VO Top dt/dv Supply Voltage Input Voltage Output Voltage Operating Temperature Input Rise and Fall Time (see note 1) (VCC = 3.3 ± 0.3V) (V CC = 5.0 ± 0.5V) Parameter Valu e 2.0 to 5.5 0 to 5.5 0 to VCC -40 to +85 0 to 100 0 to 20 Unit V V V o
C ns/V ns/V
1) VIN from 30% to70%of VCC
DC SPECIFICATIONS
Symb ol Parameter T est Cond ition s V CC (V) VIH VIL VOH High Level Input Voltage Low Level Input Voltage High Level Output Voltage 2.0 3.0 to 5.5 2.0 3.0 to 5.5 2.0 3.0 4.5 3.0 4.5 VOL Low Level Output Voltage 2.0 3.0...
