FSTU32X384 Просмотр технического описания (PDF) - Fairchild Semiconductor

Номер в каталоге

Компоненты Описание

Список матч

FSTU32X384

20-Bit Low Power Bus Switch with −2V Undershoot Protection

Fairchild Semiconductor 

AC Electrical Characteristics

TA = −40°C to +85°C

Symbol

Parameter

CL = 50 pF, RU = RD = 500Ω

VCC = 4.5 − 5.5V

VCC = 4.0V

Units

Conditions

Figure

Number

Min

Max

Min

Max

tPHL, tPLH Propagation Delay Bus to Bus

(Note 8)

0.25

0.25

ns VI = OPEN

Figures

2, 3

tPZH, tPZL

Output Enable Time

OE1, OE2 to An, Bn

1.0

5.7

6.2

ns

VI = 7V for tPZL

VI = OPEN for tPZH

Figures

2, 3

tPHZ, tPLZ

Output Disable Time

OE1, OE2 to An, Bn

1.5

5.2

5.5

ns

II = 7V for tPLZ

VI = OPEN for tPHZ

Figures

2, 3

Note 8: This parameter is guaranteed by design but not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On

Resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage the source (zero output impedance).

Capacitance (Note 9)

Symbol

Parameter

CIN

Control Input Capacitance

CI/O (OFF) Input/Output Capacitance

Note 9: Capacitance is characterized but not tested.

Typ

Max

Units

Conditions

3

6

pF

VCC = 5.0V

5

13

pF

VCC, OE = 5.0V

Undershoot Characteristic (Note 10)

Symbol

Parameter

Min

Typ

Max

Units

Conditions

VOUTU

Output Voltage During Undershoot

2.5

VOH - 0.3

V

Figure 1

Note 10: This test is intended to characterize the device’s protective capabilities by maintaining output signal integrity during an input transient voltage

undershoot event.

Device Test Conditions

Parameter

VIN

R1 = R2

VTRI

VCC

Value

see Waveform

100K

11.0

5.5

FIGURE 1.

Transient

Units

Input Voltage (VIN) Waveform

V

Ω

V

V

www.fairchildsemi.com

4

Share Link: