STM32F334X4 datasheet(81/115 Pages) STMICROELECTRONICS

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Electrical characteristics

100

Table 57. HRTIM output response to external events 1 to 10 (Synchronous mode (1))

Symbol

Parameter

Conditions

Min.

Typ.

Max.

(2)

Unit

TPROP(HRTI

External event response

latency in HRTIM

HRTIM internal propagation delay (3)

tHRTIM

tLAT(DEEV)

Digital external event

response latency

Propagation delay from HRTIM1_EEVx

digital input to HRTIM_CHxy output pin

(30pF load) (4)

-61

tLAT(AEEV)

Analog external event

response latency

Propagation delay from COMPx_INP

input pin to HRTIM_CHxy output pin

(30pF load) (4)

-81

tW(FLT)

Minimum external event

pulse width

12.5

TJIT(EEV)

External event response

jitter

Jitter of the delay from HRTIM1_EEVx

digital input or COMPx_INP to

HRTIM_CHxy output pin

--1

tHRTIM

(5)

TJIT(PW)

Jitter on output pulse width

in response to an external

event

--0

tHRTIM

(5)

1. EExFAST bit in HRTIM_EECR1 or HRTIM_EECR2 register is cleared (synchronous mode). External event filtering is

disabled, i.e. EExF[3:0]=0000 in HRTIM_EECR2 register. Refer to Latency to external events paragraph in HRTIM section

of RM0364.

2. Data based on characterization results, not tested in production.

3. This parameter does not take into account latency introduced by GPIO or comparator. Refer to DEERL or SACRL

parameter for complete latency.

4. This parameter is given for fHRTIM = 144 MHz.

5. THRTIM = 1 / fHRTIM with fHRTIM= 144 MHz or fHRTIM = 128 MHZ depending on the clock controller configuration. (Refer to

Reset and clock control section in RM0364.)

Table 58. HRTIM synchronization input / output(1)

1. Guaranteed by design, not tested in production.

Symbol

Parameter

Conditions

Min. Typ. Max.

Unit

tW(SYNCI

Minimum pulse width on

SYNCIN inputs,

including

HRTIM1_SCIN

-2

tHRTIM

tLAT(DF)

Response time to

external

synchronization request

tHRTIM

tLAT(AF)

Pulse width on

HRTIM1_SCOUT

output

tHRTIM

fHRTIM=144 MHz

111.1

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