GD32H757VMT7 datasheet(133/151 Pages) GIGADEVICE

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GD32H757xx Datasheet

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Table 4-68. USBHS Charger Detection characteristics(1)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VDAT_SRC

Data Source Voltage

—

0.5

—

0.7

IDP_SRC

Data Connect Current

—

VDAT_REF

Data Detect Voltage

—

0.25

—

0.4

(1)

Value guaranteed by design, not 100% tested in production.

Table 4-69. USBHS clock timing parameters(1)

Symbol

Parameter

Min

Typ

Max

Unit

VDD

USBHS operating voltage

3.0

—

3.63

fHCLK

fHCLK value to guarantee proper operation of USBHS

interface

—

MHz

FSTART_8BIT

Frequency (first transition) 8-bit ±10%

MHz

FSTEADY

Frequency (steady state) ±500 ppm

59.97

60.63

MHz

DSTART_8BIT

Duty cycle (first transition) 8-bit ±10%

DSTEADY

Duty cycle (steady state) ±500 ppm

49.975

50.025

(1) Value guaranteed by design, not 100% tested in production.

Table 4-70. USB-ULPI Dynamic characteristics(1)

Symbol

Parameter

Min

Typ

Max

Unit

tSC

Control in (ULPI_DIR, ULPI_NXT) setup time

—

tHC

Control in (ULPI_DIR, ULPI_NXT) hold time

0.5

—

tSD

Data in setup time

—

tHD

Data in hold time

—

(1) Value guaranteed by design, not 100% tested in production.

Figure 4-14. USBFS timings:

definition of data signal rise and fall time

VSS

VCRS

Crossover

points

Differential

data lines

4.33.

EXMC characteristics

Table 4-71. Asynchronous non-multiplexed SRAM / PSRAM / NOR read timings(1)(2)

Symbol

Parameter

Min

Max

Unit

tw(NE)

EXMC_NE low time

5*Tfclk-1

5*Tfclk+1

tV(NOE_NE)

EXMC_NEx low to EXMC_NOE low

—

tw(NOE)

EXMC_NOE low time

5*Tfclk-1

5*Tfclk+1

th(NE_NOE)

EXMC_NOE high to EXMC_NE high hold time

—

tv(A_NE)

EXMC_NEx low to EXMC_A valid

—

tv(BL_NE)

EXMC_NEx low to EXMC_BL valid

—

tsu(DATA_NE)

Data to EXMC_NEx high setup time

4*Tfclk-1

—

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