HD74LVC574A Datasheet | Hitachi Semiconductor

Description The HD74LVC574A has eight edge trigger 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 clock input goes low, data at the D inputs will be retained at the outputs until clock input 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. Low voltage and high speed operation is suitable at the battery drive product (note type personal puter) and low power consumption extends the life of a battery for long time operation. Features - - - - - - VCC = 2.0 V to 5.5 V All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V) All outputs VOUT (Max.) = 5.5 V (@VCC = 0 V or output off state) Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C) Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25°C) High output current ±24 m A (@VCC = 3.0 V to 5.5 V) Function Table Inputs OC L L L H H: L: X: Z: ↑: Q0 : CK ↑ ↑ L X D H L X X Output Q H L Q0 Z High level Low level Immaterial High impedance Low to high transition Level of Q before the indicated steady input conditions were established. Pin Arrangement OC 1 1D 2 2D 3 3D 4 4D 5 5D 6 6D 7 7D 8 8D 9 GND 10 D Q CK D Q CK D Q CK D Q CK D Q CK D Q CK D Q CK D Q CK 20 VCC 19 1Q 18 2Q 17 3Q 16 4Q 15 5Q 14 6Q 13 7Q 12 8Q 11 CK (Top view) Absolute Maximum Ratings Item Supply voltage Input diode current Input voltage Output diode current Symbol VCC I IK VI I OK Ratings - 0.5 to 6.0 - 50 - 0.5 to 6.0 - 50 50 Output voltage VO - 0.5 to VCC +0.5 - 0.5 to 6.0 Output current VCC, GND current / pin Storage temperature IO I CC or IGND Tstg ±50 100 - 65 to +150 Unit V m A V m A m A V V m A m A °C VO = - 0.5 V VO = VCC+0.5 V Output "H" or "L" Output "Z" or VCC:OFF VI = - 0.5 V Conditions Note: The...