74HC27 Datasheet, PDF (6/16 Pages) NXP Semiconductors – Triple 3-input NOR gate

NXP Semiconductors
74HC27; 74HCT27
Triple 3-input NOR gate
Table 6. Static characteristics type 74HC27; 74HCT27 …continued
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter Conditions
25 °C
−40 °C to +85 °C −40 °C to +125 °C Unit
Min Typ Max Min Max
Min
Max
74HCT27
V_IH
HIGH-level V_CC = 4.5 V to 5.5 V
input voltage
2.0 1.6 -
2.0
-
2.0
-V
V_IL
LOW-level
V_CC = 4.5 V to 5.5 V
input voltage
- 1.2 0.8
-
0.8
-
0.8 V
V_OH
HIGH-level
V_I = V_IH or V_IL; V_CC = 4.5 V
output voltage _{IO = −20 µA}
4.4 4.5 -
4.4
-
4.4
-V
I_O = −4.0 mA
3.98 4.32 - 3.84
-
3.7
-V
V_OL
LOW-level
V_I = V_IH or V_IL; V_CC = 4.5 V
output voltage _{IO = 20 µA}
- 0 0.1
-
0.1
-
0.1 V
I_O = 4.0 mA
- 0.16 0.26 -
0.33
-
0.4 V
I_I
input leakage V_I = V_CC or GND;
current
V_CC = 5.5 V
- - ±0.1 -
±1.0
-
±1.0 µA
I_CC
supply current V_I = V_CC or GND;
V_CC = 5.5 V; I_O = 0 A
- - 2.0
-
20
-
40 µA
∆I_CC
additional
supply current
per input pin;
V_I = V_CC − 2.1 V;
other inputs at V_CC or GND;
V_CC = 4.5 V to 5.5 V;
I_O = 0 A
nA, nB or nC inputs
- 150 540
-
675
-
735 µA
C_I
input
capacitance
- 3.5 -
-
-
-
- pF
10. Dynamic characteristics
Table 7. Dynamic characteristics type 74HC27; 74HCT27
GND = 0 V; for load circuit see Figure 7.
Symbol Parameter
Conditions
Min
74HC27
t_pd
propagation delay nA, nB, nC to nY; see Figure 6 ^[1]
V_CC = 2.0 V
-
V_CC = 4.5 V
-
V_CC = 5.0 V; C_L = 15 pF
-
V_CC = 6.0 V
t_t
transition time
see Figure 6
-
[2]
V_CC = 2.0 V
-
V_CC = 4.5 V
-
V_CC = 6.0 V
-
25 °C
Typ
28
10
8
8
19
7
6
−40 °C to +125 °C Unit
Max Max
Max
(85 °C) (125 °C)
90
115
135 ns
18
23
27 ns
-
-
- ns
15
20
23 ns
75
95
110 ns
15
19
22 ns
13
16
19 ns
74HC_HCT27_3
Product data sheet
Rev. 03 — 7 January 2008
© NXP B.V. 2008. All rights reserved.
6 of 16