SN74CBT16211

24-BIT BUS SWITCH

SCDS028E – JULY 1995 – REVISED APRIL 1997

3

POST OFFICE BOX 655303

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

VIK

VCC = 4.5 V,

II = –18 mA

–1.2

V

II

VCC = 0 V,

VI = 5.5 V

10

µA

II

VCC = 5.5 V,

VI = 5.5 V or GND

±1

µA

ICC

VCC = 5.5 V,

IO = 0,

VI = VCC or GND

3

µA

∆ICC‡ Control pins

VCC = 5.5 V,

One input at 3.4 V,

Other inputs at VCC or GND

2.5

mA

Ci

Control pins

VI = 3 V or 0

4.5

pF

Cio(OFF)

VO = 3 V or 0,

OE = VCC

5.5

pF

§

VCC = 4 V,

VI = 2.4 V,

II = 15 mA

14

20

r

§

VI =0

II = 64 mA

5

7

Ω

ron§

VCC = 4.5 V

VI = 0

II = 30 mA

5

7

Ω

VI = 2.4 V,

II = 15 mA

8

12

† All typical values are at VCC = 5 V, TA = 25°C.

‡ This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.

§ Measured by the voltage drop between the A and B terminals at the indicated current through the switch. On-state resistance is determined by

the lowest voltage of the two (A or B) terminals.

(unless otherwise noted) (see Figure 1)

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCC = 5 V

± 0.5 V

VCC = 4 V

UNIT

(INPUT)

(OUTPUT)

MIN

MAX

MIN

MAX

tpd¶

A or B

B or A

0.25

0.25

ns

ten

OE

A or B

3.9

9.3

10.1

ns

tdis

OE

A or B

3.3

8.5

7.1

ns

¶ This parameter is warranted but not production tested. The propagation delay is based on the RC time constant of the typical on-state resistance

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