AT25DF021A-DWFHT datasheet(58/59 Pages) RENESAS

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DS-AT25DF021A-042 Rev. L

Page 58

8/7/23

AT25DF021A Datasheet

18. Revision History

Revision Level – Release Date

History

A – September 2014

Initial release

B – October 2014

Updated AC and DC specifications. Changed document status to preliminary.

C – February 2015

Added Die in Wafer Form (DWF) ordering operation. Added IDPD specification

footnote. Updated TPE specification.

D – May 2015

Updated AC and DC characteristics. Expanded explanation of Power Up/Power Down

(Section 14)

E – November 2015

Updated IDPD and ISB specification conditions. Updated document status from

preliminary to complete.

F – February 2017

Added patent information. Updated description in section 8.4 (Page Erase).

G – December 2021

Updated package drawing in section 17.3.

H – February 2022

Changed company logo to Renesas.

I – June 2022

Applied new corporate template to document.

Changed wording of the fourth paragraph in Section 12.7.

Added the following to the description of CS in Table 1: “To ensure correct power-up

sequencing, it is recommended to add a 10k Ohm pull-up resistor from CS to VCC. This

ensures CS ramps together with VCC during power-up.”

J – December 2022

Integrated the AT25DF021A-042E-HR Addendum to content.

Added AT25DF021A-DWFAT and DWFHT ordering codes to Section 16.

Replaced POD in Section 17.2 with latest version.

Added UUN-T package option and 8-ball WLCSP package drawing.

K – May 2023

Changed the upper limit of the industrial temperature from 104

°C to 85°C in the

Features list of the front page.

Added parameters to the Ordering Information diagram in Section 16, and removed

temperature range from Device Grade.

Changed dimension in the WLCSP POD from 1.575+/-0.05 and 1.355+/-0.05 to 1.597

and 1.377, as well as from 0.4375 and 0.2775 to 0.4485 and 0.2885.

Removed The SSHNHR-B and XMHNHR-B package options in the Ordering Info

section.

Changed the lead finish on the -UUN and -UUNHR packages in the Ordering Info

section.

L – August 2023

In Sections 13.3 and 13.4, changed max value of VOL from 0.4 V to 0.2 V.

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