51 This ISS and truth table tests shall be performed in the test number sequence shown with no intervening changes to terminal conditions. The truth table tests shall be performed with VIH and VDD ≤ 5.0 V and � 18.0 V. Table III shows the lower of these two voltages. During the functional test, input terminals designated "PA", "PB", etc., shall have applied thereto a specified number of single pulses with the following parameters: Pulse amplitude = VDD maximum to VDD = 4% minimum. These pulses are enumerated as follows:
Symbol |
Pulses |
Symbol |
Pulses |
Symbol |
Pulses |
Symbol |
Pulses |
PA |
1 |
PF |
7 |
PK |
85 |
PS |
2047 |
PB |
2 |
PG |
15 |
PL |
127 |
PT |
4095 |
PC |
3 |
PH |
31 |
PM |
255 |
PU |
5461 |
PD |
4 |
PI |
42 |
PN |
511 |
PV |
8191 |
PE |
5 |
PJ |
63 |
PR |
1023 |
PY |
10922 |
Also during the truth table tests, device output voltages are: don't care "X", high "H", and low "L" as specified in the terminal conditions columns. The output voltage limits over the specified temperature range are "H" = VDD -0.50 V minimum and "L" = VSS +0.50 V maximum.
61 See figure 8 for switching time waveforms and test circuit.
71 Data pin need only be toggled high or low to allow outputs to achieve the proper setup state required to verify the indicated test parameter.
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