AT25SL321 datasheet(49/82 Pages) DIALOG

Part #	AT25SL321

Description	32-Mbit, 1.7 V Minimum SPI Serial Flash Memory with Dual I/O, Quad I/O and QPI Support

PDF	82 Pages

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Manufacturer	DIALOG [Dialog Semiconductor]

Direct Link	http://www.dialog-semiconductor.com/

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AT25SL321

DS-25SL321–112H–2020-10

8.28 JEDEC ID (9Fh)

For compatibility reasons, the AT25SL321 provides several instructions to electronically determine the identity of

the device. The Read JEDEC ID instruction is congruous with the JEDEC standard for SPI compatible serial flash

memories that was adopted in 2003. The instruction is entered by driving the CS pin low with following the

instruction code 9Fh. JEDEC assigned Manufacturer ID byte for Adesto (1Fh) and two Device ID bytes, Memory

Type (ID15-ID8) and Capacity (ID7-ID0) are then shifted out on the falling edge of SCK with most significant bit

(MSB) first shown in Figure 8-46 and Figure 8-47. For memory type and capacity values, see Manufacturer and

Device Identification Table 8-1. The JEDEC ID can be read continuously. The instruction is terminated by driving

CS high.

Figure 8-46. Read JEDEC ID Instruction (SPI Mode)

Figure 8-47. Read JEDEC ID Instruction (QPI Mode)

AT25SL321 Datasheet(PDF) 49 Page - Dialog Semiconductor