74LVC32244 데이터 시트보기 (PDF) - Philips Electronics
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74LVC32244 Datasheet PDF : 16 Pages
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Philips Semiconductors
32-bit buffer/line driver; 5 V input/output
tolerant; 3-state
Product specification
74LVC32244A;
74LVCH32244A
DC CHARACTERISTICS
Over recommended operating conditions; voltage are referenced to GND (ground = 0 V).
TEST CONDITIONS
Tamb (°C)
SYMBOL
PARAMETER
OTHER
VCC (V)
−40 to +85
UNIT
MIN. TYP.(1) MAX.
VIH
HIGH-level input voltage
VIL
LOW-level input voltage
1.2
VCC
−
−
V
2.7 to 3.6 2.0
−
−
1.2
−
−
GND V
2.7 to 3.6 −
−
0.8
VOH
HIGH-level output voltage
VOL
LOW-level output voltage
II
input leakage current
VI = VIH or VIL
IO = −12 mA
2.7
VCC − 0.5 −
−
V
IO = −100 µA
3.0
VCC − 0.2 VCC −
IO = −18 mA
3.0
VCC − 0.6 −
−
IO = −24 mA
3.0
VCC − 0.8 −
−
VI = VIH or VIL
IO = 12 mA
2.7
−
−
0.40 V
IO = 100 µA
3.0
−
−
0.20
IO = 24 mA
3.0
−
−
0.55
VI = 5.5 V or GND;
3.6
−
note 2
±0.1 ±5 µA
IOZ
Ioff
ICC
∆ICC
3-state output OFF-state current
power off leakage supply
quiescent supply current
additional quiescent supply
current per input pin
VI = VIH or VIL;
VO = 5.5 V or GND
VI or VO = 5.5 V
VI = VCC or GND; IO = 0
VI = VCC − 0.6 V; IO = 0
3.6
−
0.0
−
3.6
−
2.7 to 3.6 −
0.1 ±5 µA
0.1 ±10 µA
0.1 40 µA
5
500 µA
IBHL
bus hold LOW sustaining current VI = 0.8 V;
notes 3, 4 and 5
3.0
75
−
−
µA
IBHH
bus hold HIGH sustaining current VI = 2.0 V;
notes 3, 4 and 5
3.0
−75
−
−
µA
IBHLO
IBHHO
bus hold LOW overdrive current notes 3, 4 and 6
bus hold HIGH overdrive current notes 3, 4 and 6
3.6
500
−
−
µA
3.6
−500
−
−
µA
Notes
1. All typical values are at VCC = 3.3 V and Tamb = 25 °C.
2. For bus hold parts the bus hold circuit is switched off when VI exceeds VCC allowing 5.5 V on the input terminal.
3. Valid for data inputs of bus hold parts only (LVCH32xxx-A).
4. For data inputs only. Control inputs do not have a bus hold circuit.
5. The specified sustaining current at the data input holds the input below the specified VI level.
6. The specified overdrive current at the data input forces the data input to the opposite logic input level.
1999 Aug 31
7
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