74AHC245 Datasheet, PDF (6/20 Pages) NXP Semiconductors – Octal bus transceiver; 3-state

Philips Semiconductors
Octal bus transceiver; 3-state
Product specification
74AHC245; 74AHCT245
DC CHARACTERISTICS
74AHC family
Over recommended operating conditions; voltages are referenced to GND (ground = 0 V).
TEST CONDITIONS
T_amb (°C)
SYMBOL PARAMETER
OTHER
25
−40 to +85 −40 to +125 UNIT
V_CC (V)
MIN. TYP. MAX. MIN. MAX. MIN. MAX.
V_IH
HIGH-level input
voltage
2.0
1.5 −
−
1.5 −
1.5 −
V
3.0
2.1 −
−
2.1 −
2.1 −
5.5
3.85 −
−
3.85 −
3.85 −
V_IL
LOW-level input
voltage
2.0
−−
0.5 − 0.5 − 0.5 V
3.0
−−
0.9 − 0.9 − 0.9
5.5
−−
1.65 − 1.65 − 1.65
V_OH
HIGH-level output V_I = V_IH or V_IL; 2.0
1.9 2.0 −
1.9 −
1.9 −
V
voltage; all
I_O = −50 µA
3.0
2.9 3.0 −
2.9 −
2.9 −
outputs
4.5
4.4 4.5 −
4.4 −
4.4 −
HIGH-level output V_I = V_IH or V_IL; 3.0
2.58 −
−
2.48 −
2.40 −
V
voltage
I_O = −4.0 mA
V_I = V_IH or V_IL;
4.5
3.94 −
−
3.8 −
3.70 −
I_O = −8.0 mA
V_OL
LOW-level output V_I = V_IH or V_IL; 2.0
−0
0.1 − 0.1 − 0.1 V
voltage; all
I_O = 50 µA
3.0
−0
0.1 − 0.1 − 0.1
outputs
4.5
−0
0.1 − 0.1 − 0.1
LOW-level output V_I = V_IH or V_IL; 3.0
voltage
I_O = 4 mA
−−
0.36 − 0.44 − 0.55 V
V_I = V_IH or V_IL;
4.5
I_O = 8 mA
−−
0.36 − 0.44 − 0.55
I_I
input leakage
V_I = V_CC or GND 5.5
−−
0.1 − 1.0 − 2.0 µA
current
I_OZ
3-state output
V_I = V_IH or V_IL;
5.5
−−
±0.25 − ±2.5 − ±10.0 µA
OFF current
V_O = V_CC or GND
I_CC
quiescent supply V_I = V_CC or GND; 5.5
−−
4.0 − 40 − 80 µA
current
I_O = 0
C_I
input capacitance
−
−3
10 − 10 − 10 pF
1999 Sep 28
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