AT45DB021E datasheet(69/69 Pages) RENESAS

Part #	AT45DB021E

Description	2-Mbit DataFlash (with Extra 64 kbits) 1.65 V Minimum SPI Serial Flash Memory

PDF	69 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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DS-AT45DB021E-8789 Rev. N

Page 69

3/24/26

AT45DB021E Datasheet

8789L

08/2022

Applied Renesas Corporate Template to document.

Added the following sentence 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.”

8789M

04/2024

Changed note from below Table 34 from: “All inputs (SI, SCK, CS, WP, and RESET) are guaranteed by

design to be 5V tolerant.” to “All inputs (SI, SCK, CS, WP, and RESET) are guaranteed by design to be

5 V tolerant; however, usage of 5V tolerance for extended periods can effect device reliability.”

Removed empty Section 32. Errata.

Updated/corrected the Ordering Information in Section 29.

Updated PODs in Section 30.

8789N

03/2026

Updated Figure 1 ‘Pinouts.’

Updated Section 30.2 ‘8-lead 208-mil EIAJ SOIC.’

Added new 8-Ball, 1.879 x 1.395 x 0.520 mm WLCSP to Section 30.4.

Marked Section 30.5 ‘8-Ball (2 x 4 Array) Wafer Level Chip Scale Package’ as (EOL).

Doc. Rev.

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AT45DB021E Datasheet(PDF) 69 Page - Renesas Technology Corp