GD25Q32CSFG datasheet(38/76 Pages) GIGADEVICE

部品番号	GD25Q32CSFG

部品情報	3.3V Uniform Sector Dual and Quad Serial Flash

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メーカー	GIGADEVICE [GigaDevice Semiconductor (Beijing) Inc.]

ホームページ	http://www.gigadevice.com/

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3.3V Uniform Sector

Dual and Quad Serial Flash

GD25Q32C

7.27. High Performance Mode (HPM) (A3H)

The High Performance Mode (HPM) command must be executed prior to Dual or Quad I/O commands when

operating at high frequencies (see fR and fC2 in AC Electrical Characteristics). This command allows pre-charging of

internal charge pumps so the voltages required for accessing the flash memory array are readily available. The

command sequence: CS# goes lowSending A3H command Sending 3-dummy ByteCS# goes high. See

Figure32. After the HPM command is executed, HPF bit of status register will be set to 1, the device will maintain a

slightly higher standby current (Icc9) than standard SPI operation. The Release from Power-Down or HPM command (ABH)

can be used to return to standard SPI standby current (Icc1). In addition, Power-Down command (B9H) will also

release the device from HPM mode back to standard SPI Deep Power-Down state.

Figure 32. High Performance Mode Sequence Diagram

Command

A3H

CS#

SCLK

29 30 31

MSB

3 Dummy Bytes

23 22

High Performance Mode

HPM

GD25Q32CSFG データシート(PDF) 38 Page - GigaDevice Semiconductor (Beijing) Inc.