AM1806 datasheet(217/245 Pages) TI

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TM64P0_OUT12

TM64P0_IN12

AM1806

www.ti.com

SPRS658F – FEBRUARY 2010 – REVISED MARCH 2014

6.26.1 Timer Electrical Data/Timing

Table 6-108. Timing Requirements for Timer Input(1) (2) (see Figure 6-72)

1.3V, 1.2V, 1.1V, 1.0V

NO.

UNIT

MIN

MAX

tc(TM64Px_IN12)

Cycle time, TM64Px_IN12

tw(TINPH)

Pulse duration, TM64Px_IN12 high

0.45C

0.55C

tw(TINPL)

Pulse duration, TM64Px_IN12 low

0.45C

0.55C

tt(TM64Px_IN12)

Transition time, TM64Px_IN12

0.05C or 10(3)

(1)

P = OSCIN cycle time in ns.

(2)

C = TM64P0_IN12 cycle time in ns. For example, when TM64Px_IN12 frequency is 27 MHz, use C = 37.037 ns

(3)

Whichever is smaller. P = the period of the applied signal. Maintaining transition times as fast as possible is recommended to improve

noise immunity on input signals.

Figure 6-72. Timer Timing

Table 6-109. Switching Characteristics Over Recommended Operating Conditions for Timer Output (1)

1.3V, 1.2V, 1.1V, 1.0V

NO.

PARAMETER

UNIT

MIN

MAX

tw(TOUTH)

Pulse duration, TM64P0_OUT12 high

tw(TOUTL)

Pulse duration, TM64P0_OUT12 low

(1)

P = OSCIN cycle time in ns.

Figure 6-73. Timer Timing

Peripheral Information and Electrical Specifications

217

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