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The HD74LVC373A has eight D type latches with three state outputs in a 20 pin package. When the latch enable input is high, the Q outputs will follow the D inputs. When the latch enable goes low, data at the D inputs will be retained at the outputs until latch enable 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.
HD74LVC373A Maximum Ratings
Item
Symbol
Ratings
Unit
Conditions
Supply voltage
VCC
0.5 to 6.0
V
Input diode current
IIK
50
mA
VI = 0.5 V
Input voltage
VI
0.5 to 6.0
V
Output diode current
IOK
50
mA
VO = 0.5 V
50
mA
VO = VCC+0.5 V
Output voltage
VO
0.5 to VCC +0.5
V
Output "H" or "L"
VO
0.5 to 6.0
V
Output "Z" or VCC:OFF
Output current
IO
±50
mA
VCC, GND current / pin
ICC or IGND
100
mA
Storage temperature
Tstg
65 to +150
HD74LVC373A Features
· VCC = 2.7 to 5.5 V · All inputs VIH (Max) = 5.5 V (@VCC = 0 to 5.5 V) · All outputs VO (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 to 5.5 V)