TSC2003

5

SBAS162G

www.ti.com

TIMING CHARACTERISTICS

At TA = –40°C to +85°C, +VDD = +2.7V, unless otherwise noted. All values referred to VIHMIN and VILMAX levels.

PARAMETER

SYMBOL

CONDITIONS

MIN

MAX

UNITS

SCL Clock Frequency

fSCL

Standard Mode

0

100

kHz

Fast Mode

0

400

kHz

High-Speed Mode, Cb = 100pF max

0

3.4

MHz

High-Speed Mode, Cb = 400pF max

0

1.7

MHz

Bus Free Time Between a STOP and

tBUF

Standard Mode

4.7

µs

Start Condition

Fast Mode

1.3

µs

Hold Time (Repeated) START

tHD; STA

Standard Mode

4.0

µs

Condition

Fast Mode

600

ns

High-Speed Mode

160

ns

LOW Period of the SCL Clock

tLOW

Standard Mode

4.7

µs

Fast Mode

1.3

µs

High-Speed Mode, Cb = 100pF max

160

ns

High-Speed Mode, Cb = 400pF max

320

ns

HIGH Period of the SCL Clock

tHIGH

Standard Mode

4.0

µs

Fast Mode

600

ns

High-Speed Mode, Cb = 100pF max

60

ns

High-Speed Mode, Cb = 400pF max

120

ns

Setup Time for a Repeated START

tSU; STA

Standard Mode

4.7

µs

Condition

Fast Mode

600

ns

High-Speed Mode

160

ns

Data Setup Time

tSU; DAT

Standard Mode

250

ns

Fast Mode

100

ns

High-Speed Mode

10

ns

Data Hold Time

tHD; DAT

Standard Mode

0

3.45

µs

Fast Mode

0

0.9

µs

High-Speed Mode, Cb = 100pF max

0

70

ns

High-Speed Mode, Cb = 400pF max

0

150

ns

Rise Time of SCL Signal

trCL

Standard Mode

1000

ns

Fast Mode

20 + 0.1Cb

300

ns

High-Speed Mode, Cb = 100pF max

10

40

ns

High-Speed Mode, Cb = 400pF max

20

80

ns

Rise Time of SCL Signal After a

trCL1

Standard Mode

1000

ns

Repeated START Condition and

Fast Mode

20 + 0.1Cb

300

ns

After an Acknowledge Bit

High-Speed Mode, Cb = 100pF max

10

80

ns

High-Speed Mode, Cb = 400pF max

20

160

ns

Fall Time of SCL Signal

tfCL

Standard Mode

300

ns

Fast Mode

20 + 0.1Cb

300

ns

High-Speed Mode, Cb = 100pF max

10

40

ns

High-Speed Mode, Cb = 400pF max

20

80

ns

Rise Time of SDA Signal

trDA

Standard Mode

1000

ns

Fast Mode

20 + 0.1Cb

300

ns

High-Speed Mode, Cb = 100pF max

10

80

ns

High-Speed Mode, Cb = 400pF max

20

160

ns

Fall Time of SDA Signal

tfDA

Standard Mode

300

ns

Fast Mode

20 + 0.1Cb

300

ns

High-Speed Mode, Cb = 100pF max

10

80

ns

High-Speed Mode, Cb = 400pF max

20

160

ns

Setup Time for STOP Condition

tSU; STO

Standard Mode

4.0

µs

Fast Mode

600

ns

High-Speed Mode

160

ns

Capacitive Load for SDA or SCL

Cb

Standard Mode

400

pF

Line

Fast Mode

400

pF

High-Speed Mode, SCL = 1.7MHz

400

pF

High-Speed Mode, SCL = 3.4MHz

100

pF

Pulse Width of Spike Suppressed

tSP

Fast Mode

0

50

ns

High-Speed Mode

0

10

ns

Noise Margin at the HIGH Level for

Standard Mode

Each Connected Device (Including

VnH

Fast Mode

0.2VDD

V

Hysteresis)

High-Speed Mode

Noise Margin at LOW Level for Each

VnL

Standard Mode

Connected Device (Including

Fast Mode

0.1VDD

V

Hysteresis)

High-Speed Mode