TIMING CHARACTERISTICS

(1) (2)

TSC2003-Q1

www.ti.com ........................................................................................................................................................................................... SBAS454 – DECEMBER 2008

ELECTRICAL CHARACTERISTICS (continued)

TA = –40°C to 85°C, VDD = 2.7 V, VREF = 2.5-V external voltage, I

2C bus frequency = 3.4 MHz, 12-bit mode,

digital inputs = GND or VDD (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Power Supply Requirements

Specified performance

2.7

3.6

VDD

Supply voltage

Operating range

2.5

5.25

High-speed mode

254

650

(SCL = 3.4 MHz)

Internal reference off,

Fast mode

95

PD1 = PD0 = 0

(SCL = 400 kHz)

IQ

Quiescent current

µA

Standard mode

63

(SCL = 100 kHz)

Internal reference on, PD0 = 0

1005

High-speed mode

90

(SCL = 3.4 MHz)

Internal reference off,

Fast mode

21

Power-down current when part is

PD1 = PD0 = 0

(SCL = 400 kHz)

IPD

µA

not addressed

Standard mode

4

(SCL = 100 kHz)

PD1 = PD0 = 0, SDA = SCL = VDD

3

PD

Power dissipation

VDD = 2.7 V

1.8

mW

Temperature Range

TA

Operating free-air temperature

Specified performance

–40

85

°C

TA = –40°C to 85°C, VDD = 2.7 V (unless otherwise noted) (see Figure 1)

PARAMETER

TEST CONDITIONS

MIN

MAX

UNIT

Standard mode

0

100

kHz

Fast mode

0

400

fSCL

SCL clock frequency

High-speed mode, Cb = 100 pF max

0

3.4

MHz

High-speed mode, Cb = 400 pF max

0

1.7

Standard mode

4.7

Bus free time between Stop and Start

tBUF

µs

conditions

Fast mode

1.3

Standard mode

4

µs

tHD; STA

Hold time (repeated) Start condition

Fast mode

600

ns

High-speed mode

160

Standard mode

4.7

µs

Fast mode

1.3

tlow

Low period of the SCL clock

High-speed mode, Cb = 100 pF max

160

ns

High-speed mode, Cb = 400 pF max

320

Standard mode

4

µs

Fast mode

600

thigh

High period of the SCL clock

High-speed mode, Cb = 100 pF max

60

ns

High-speed mode, Cb = 400 pF max

120

Standard mode

4.7

µs

tSU; STA

Setup time for a repeated Start condition

Fast mode

600

ns

High-speed mode

160

(1)

All values referred to VIHMIN and VILMAX levels.

(2)

Not production tested

Copyright © 2008, Texas Instruments Incorporated

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