ST10F269Z2T3 datasheet(54/184 Pages) STMICROELECTRONICS

部件名	ST10F269Z2T3

功能描述	16-BIT MCU WITH MAC UNIT, 128K to 256K BYTE FLASH MEMORY AND 12K BYTE RAM

PDF	184 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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54 / 184 page

10 - GENERAL PURPOSE TIMER UNIT

ST10F269

54/184

Resolution and Period (TQFP144 devices) list the

timer input frequencies, resolution and periods for

each pre-scaler option at 40MHz (or 32MHz) CPU

clock. This also applies to the Gated Timer Mode

of T6 and to the auxiliary timer T5 in Timer and

Gated Timer Mode.

Table 14 : GPT2 Timer Input Frequencies, Resolution and Period (PQFP144 devices)

Table 15 : GPT2 Timer Input Frequencies, Resolution and Period (TQFP144 devices)

fCPU = 40MHz

Timer Input Selection T5I / T6I

000b

001b

010b

011b

100b

101b

110b

111b

Pre-scaler factor

128

256

512

Input Freq

10MHz

5MHz

2.5MHz

1.25MHz

625kHz

312.5kHz

156.25kHz

78.125kHz

Resolution

100ns

200ns

400ns

0.8µs

1.6µs

3.2µs

6.4µs

12.8µs

Period maximum

6.55ms

13.1ms

26.2ms

52.4ms

104.8ms

209.7ms

419.4ms

838.9ms

fCPU = 32MHz

Timer Input Selection T5I / T6I

000b

001b

010b

011b

100b

101b

110b

111b

Pre-scaler factor

128

256

512

Input Freq

8MHz

4MHz

2MHz

1MHz

500KHz

250KHz

125KHz

62.5KHz

Resolution

125ns

250ns

500ns

µs2µs4µs8µs16µs

Period maximum

8.19ms

16.4ms

32.8ms

65.5ms

131ms

262.1ms

524.3ms

1.05s

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