SN74CBTK6800

10-BIT FET BUS SWITCH WITH PRECHARGED OUTPUTS

AND ACTIVE-CLAMP UNDERSHOOT-PROTECTION CIRCUIT

SCDS107B – APRIL 2000 – REVISED OCTOBER 2000

4

POST OFFICE BOX 655303

undershoot characteristics

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

VOUTU

See Figures 1 and 2, and Table 1

2

VOH–0.3

V

† All typical values are at VCC = 5 V (unless otherwise noted), TA = 25°C.

Figure 1. Device Test Setup

50

Ω

VIN

VCC

VTR

R1

R2

10 pF

DUT

Figure 2. Transient Input Voltage Waveform

–2 V

5.5 V

0 V

Table 1. Device Test Conditions

PARAMETER

VALUE

UNIT

B port under test‡

See Figure 1

VIN

See Figure 2

V

tw

20

ns

tr

2

ns

tf

2

ns

R1 = R2

100

k

Ω

VTR

11

V

VCC

5.5

V

BIASV

Open

‡ Other B-port outputs are open.