SN74CB3T16212 datasheet(6/17 Pages) TI1

Part #	SN74CB3T16212

Description	24-BIT FET BUS-EXCHANGE SWITCH, 2.5-V/3.3-V LOW-VOLTAGE BUS SWITCH WITH 5-V-TOLERANT LEVEL SHIFTER

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ELECTRICAL CHARACTERISTICS

(1)

SWITCHING CHARACTERISTICS

SN74CB3T16212

24-BIT FET BUS-EXCHANGE SWITCH, 2.5-V/3.3-V LOW-VOLTAGE BUS SWITCH

WITH 5-V-TOLERANT LEVEL SHIFTER

SCDS157A – OCTOBER 2003 – REVISED FEBRUARY 2005

PARAMETER

TEST CONDITIONS

MIN

TYP(2)

MAX

UNIT

VIK

VCC = 3 V, II = –18 mA

–1.2

V

VOH

See Figures 3 and 4

Control

IIN

VCC = 3.6 V, VIN = 3.6 V to 5.5 V or GND

±10

µA

inputs

VI = VCC – 0.7 V to 5.5 V

±20

II

VCC = 3.6 V, VIN = VCC or GND, Switch ON

VI = 0.7 V to VCC – 0.7 V

–40

µA

VI = 0 to 0.7 V

±5

IOZ(3)

VCC = 3.6 V, VI = 0, VIN = VCC or GND, VO = 0 to 5.5 V, Switch OFF

±10

µA

Ioff

VCC = 0, VI = 0, VO = 0 to 5.5 V

10

µA

VI = VCC or GND

70

VCC = 3.6 V, VIN = VCC or GND, II/O = 0,

ICC

µA

Switch ON or OFF

VI = 5.5 V

70

Control

∆I

CC

(4)

VCC = 3 V to 3.6 V, One input at VCC – 0.6 V, Other inputs at VCC or GND

300

µA

inputs

Control

Cin

VCC = 3.3 V, VIN = VCC or GND

4

pF

inputs

Cio(OFF)

VCC = 3.3 V, VIN = VCC or GND, VI/O = 5.5 V, 3.3 V, or GND, Switch OFF

9

pF

VI/O = 5.5 V or 3.3 V

8

Cio(ON)

VCC = 3.3 V, VIN = VCC or GND, Switch ON

pF

VI/O = GND

23

IO = 24 mA

5

9.5

VCC = 2.3 V, TYP at VCC = 2.5 V, VI = 0

IO = 16 mA

5

9.5

rON(5)

Ω

IO = 64 mA

5

8.5

VCC = 3 V, VI = 0

IO = 32 mA

5

8.5

(1)

VIN and IIN refer to control inputs. VI, VO, II, and IO refer to data pins.

(2)

All typical values are at VCC = 3.3 V (unless otherwise noted), TA = 25°C.

(3)

For I/O ports, the parameter IOZ includes the input leakage current.

(4)

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

(5)

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

by the lower of the voltages of the two (A or B) terminals.

over operating free-air temperature range (unless otherwise noted) (see Figure 2)

VCC = 2.5 V

VCC = 3.3 V

FROM

TO

± 0.2 V

± 0.3 V

PARAMETER

UNIT

(INPUT)

(OUTPUT)

MIN

MAX

MIN

MAX

tpd(1)

A or B

B or A

0.15

0.25

ns

tpd(s)

S

A

1

15.5

1

11.5

ns

ten

S

B

1

15

1

12

ns

tdis

S

B

1

12

1

10.5

ns

(1)

The propagation delay is the calculated RC time constant of the typical ON-state resistance of the switch and the specified load

capaitance, when driven by an ideal voltage source (zero output impedance).

6

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