74HC2G32 Datasheet, PDF (6/13 Pages) NXP Semiconductors – Dual 2-input OR gate

NXP Semiconductors
74HC2G32; 74HCT2G32
Dual 2-input OR gate
Table 8. Dynamic characteristics …continued
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 7.
Symbol Parameter Conditions
25 °C
Min Typ Max
74HCT2G32
t_pd
propagation nA, nB to nY; see Figure 6 ^[1]
delay
V_CC = 4.5 V
- 13 24
t_t
transition nY; see Figure 6
time
V_CC = 4.5 V
[2]
-
6 15
C_PD
power
per buffer;
[3] _-
11
-
dissipation C_L = 50 pF; f_i = 1 MHz;
capacitance V_I = GND to V_CC
−40 °C to +85 °C
Min Max
-
30
-
19
-
-
−40 °C to +125 °C Unit
Min
Max
-
36 ns
-
22 ns
-
-
pF
[1] t_pd is the same as t_PLH and t_PHL.
[2] t_t is the same as t_TLH and t_THL.
[3] C_PD is used to determine the dynamic power dissipation (P_D in µW).
P_D = C_PD × V_CC2 × f_i × N + Σ(C_L × V_CC2 × f_o) where:
f_i = input frequency in MHz;
f_o = output frequency in MHz;
C_L = output load capacitance in pF;
V_CC = supply voltage in V;
N = number of inputs switching;
Σ(C_L × V_CC2 × f_o) = sum of the outputs.
12. Waveforms
V_I
nA, nB input
GND
V_OH
nY output
V_OL
V_M
t_PHL
V_Y
t_THL
V_M
V_X
t_PLH
t_TLH
001aak020
Fig 6.
Measurement points are given in Table 9.
V_OL and V_OH are typical output voltage levels that occur with the output load.
Propagation delay data input (nA, nB) to data output (nY) and transition time output (nY)
Table 9. Measurement points
Type
Input
74HC2G32
74HCT2G32
V_M
0.5V_CC
1.3 V
Output
V_M
0.5V_CC
1.3 V
V_X
0.1V_CC
0.1V_CC
V_Y
0.9V_CC
0.9V_CC
74HC_HCT2G32_3
Product data sheet
Rev. 03 — 12 May 2009
© NXP B.V. 2009. All rights reserved.
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