4.6

AC measurement conditions

Table 9. AC measurement conditions

TA = −40 to 105 °C (for the 3.3 V voltage range only) and TA = −25 to 85 °C (for the 1.8 V and 3.3 V voltage ranges).

f = 1 MHz, unless otherwise specified.

Parameter

Value (1)

Input rise and fall times

10 ns max

Input pulse voltage

VIL to VIH

Input timing reference voltage

0.5 × VPS

Output timing reference voltage

VOL to VOH

1. Measurement points are at CMOS levels: 0.3 × VPS and 0.7 × VPS.

Figure 6. AC testing input/output waveforms

VIH

VIL

VOH

VOL

Output

Input

0.5 VCC

Figure 7. AC testing load circuit

VPS

OUT

CL = 50 pF

CL includes JIG capacitance

20 kOhm

Device

Under

Test

ST33TPHF2XI2C

AC measurement conditions

DS14167 - Rev 1

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