Nexperia

74HC9115

Nine wide Schmitt trigger buffer; open drain outputs

74HC9115

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Product data sheet

Rev. 3 — 10 April 2018

6 / 12

Table 8. Measurement points

Input

Output

VM

VM

VX

VY

0.5VCC

0.5VCC

0.1VCC

0.9VCC

VM

VM

tW

tW

10 %

90 %

0 V

VI

VI

negative

pulse

positive

pulse

0 V

VM

VM

90 %

10 %

tf

tr

tr

tf

001aad983

DUT

VCC

VCC

VI

VO

RT

RL

S1

CL

open

G

Test data is given in Table 9.

Definitions test circuit:

RT = Termination resistance should be equal to output impedance Zo of the pulse generator

CL = Load capacitance including jig and probe capacitance

RL = Load resistance

S1 = Test selection switch

Figure 5. Test circuit for measuring switching times

Table 9. Test data

Input

Load

S1 position

VI

tr, tf

CL

RL

tPZL, tPLZ

VCC

6 ns

15 pF, 50 pF

1 kΩ

VCC