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HD74LVC374A

Hitachi Semiconductor
Part Number HD74LVC374A
Manufacturer Hitachi Semiconductor
Description Octal D-type Flip Flops with 3-state Outputs
Published Mar 23, 2005
Detailed Description HD74LVC374A Octal D-type Flip Flops with 3-state Outputs ADE-205-113B(Z) 3rd Edition December 1996 Description The HD74...
Datasheet PDF File HD74LVC374A PDF File

HD74LVC374A
HD74LVC374A

Overview
HD74LVC374A Octal D-type Flip Flops with 3-state Outputs ADE-205-113B(Z) 3rd Edition December 1996 Description The HD74 LVC374A 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 computer) 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 mA (@VCC = 3.
0 V to 5.
5 V) HD74LVC374A Function Table Inputs G H L L L H: L: X: Z: ↑: Q0 : CK X ↑ ↑ L D X L H X Output Q Z L H Q0 High level Low level Immaterial High impedance Low to high transition Level of Q before the indicated steady input conditions were established.
Pin Arrangement G 1 1Q 2 1D 3 2D 4 2Q 5 3Q 6 3D 7 4D 8 4Q 9 GND 10 G Q CK D G Q CK D 20 VCC 19 8Q 18 8D 17 7D 16 7Q 15 6Q 14 6D 13 5D 12 5Q 11 CK CK D G Q CK D G Q G Q CK D G Q CK D CK D G Q CK D G Q (Top view) 2 HD74LVC374A 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...


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