Test circuit. STMicroelectronics ST2349A

ST2349A Test circuit

Figure 4.

Test circuit

P u l s e gener a tor

R u p

VL

VL VCC

D.U.T

VCC

R u p

CL

V L

VCC

OPEN

GND

C S 14021

Table 13.

Test circuit switches

Test t

PLH

, t

PHL

Driving I/O

VL

Open

Switch

Driving I/O

VCC

Open

Open drain driving

Open

Doc ID 14908 Rev 2 13/20

Test circuit ST2349A

Table 14.

Waveform symbol value

Symbol

V

IH

V

IM

V

OM

V

X

V

Y

1.8 V ≤ V

L

≤

2.5 V

Driving I/O

VL

V

CC

≤ 3.3 V ≤ V

L

5.0 V

≤ V

CC

≤

V

L

50% V

L

50% V

CC

V

OL

+0.15V

V

OH

-0.15V

V

L

50% V

L

50% V

CC

V

OL

+0.3V

V

OH

-0.3V

Driving I/O

VCC

1.8 V ≤ V

L

≤

2.5 V

V

CC

≤ 3.3V

≤ V

L

≤

5.0 V

V

CC

≤

V

CC

50% V

CC

50% V

L

V

OL

+0.15V

V

OH

-0.15V

V

CC

50% V

CC

50% V

L

V

OL

+0.3V

V

OH

-0.3V

Figure 5.

Waveform - propagation delay (f = 1 MHz; 50% duty cycle)

Figure 6.

Waveform - output enable and disable time (f = 1 MHz; 50% duty cycle)

14/20 Doc ID 14908 Rev 2