LV74 Datasheet | Hitachi Semiconductor

Description The HD74LV74A has independent data, preset, clear, and clock inputs Q and Q outputs in a 14 pin package. The input data is transferred to the output at the rising edge of clock pulse CLK. Low-voltage and high-speed operation is suitable for the battery-powered products (e.g., notebook puters), and the low-power consumption extends the battery life. Features - - - - - - VCC = 2.0 V to 5.5 V operation All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V) All outputs VO (Max.) = 5.5 V (@VCC = 0 V) Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C) Typical VOH undershoot > 2.3 V (@VCC = 3.3 V, Ta = 25°C) Output current ±6 m A (@VCC = 3.0 V to 3.6 V), ±12 m A (@VCC = 4.5 V to 5.5 V) HD74LV74A Function Table Inputs PRE L H L H H H CLR H L L H H H CLK X X X ↑ ↑ ↓ D X X X H L X Outputs Q H L H- H L Q0 Q L H H- 1 L H Q0 Note: H: High level L: Low level X: Immaterial ↑: Low to high transition ↓: High to low transition Q0:The level of Q immediately before the input conditions shown in the above table are determined. 1.: Q and Q will remain HIGH as long as Preset and Clear are Low, but Q and Q are unpredictable, if Preset and Clear go HIGH simultaneously. Pin Arrangement 1CLR 1 1D 1CLK 2 3 14 VCC 13 2CLR 12 2D 11 2CLK 10 2PRE 9 2Q 8 2Q 1PRE 4 1Q 1Q 5 6 GND 7 (Top view) HD74LV74A Absolute Maximum Ratings Item Supply voltage range Input voltage range- 1 1, 2 Symbol VCC VI VO Ratings - 0.5 to 7.0 - 0.5 to 7.0 - 0.5 to VCC + 0.5 - 0.5 to 7.0 Unit V V V Conditions Output voltage range- Output: H or L VCC: OFF Input clamp current Output clamp current Continuous output current Continuous current through VCC or GND Maximum power dissipation at Ta = 25°C (in still air)- 3 I IK I OK IO I CC or IGND PT - 20 ±50 ±25 ±50 785 500 m A m A m A m A m W VI < 0 VO < 0 or VO > VCC VO = 0 to VCC SOP TSSOP Storage temperature Tstg...