M69AW024B datasheet(8/29 Pages) STMICROELECTRONICS

tên linh kiện	M69AW024B

Giải thích chi tiết về linh kiện	16 Mbit (1M x16) 3V Asynchronous PSRAM

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M69AW024B

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Table 2. Operating Modes

Note: 1. X = VIH or VIL.

2. Output Disable mode should not be kept longer than 1µs.

3. Power-down mode can be entered from Stand-by state, and all DQ pins are in Hi-Z state.

4. Can be either VIL or VIH but must be valid before Read or Write.

5. Byte Read is not supported.

6. Either or both LB and UB must be Low, VIL, for Read operations.

Operation

A0-A19

DQ0-DQ7

DQ8-

DQ15

ICC

Data Re-

tention

Standby (Deselect)

VIH

X (1)

Hi-Z

ISB

Yes

Output Disabled (2)

VIH

VIL

VIH

X (1)

Note (4)

Hi-Z

ICC

Yes

Output Disabled

(No Read)

VIH

VIL

VIH

VIL

VIH

Valid

Hi-Z

ICC

Yes

Word Read(5)

VIH

VIL

VIH

VIL

VIL(6)

Valid

Output Valid

ICC

Yes

Word Read

VIH

VIL

VIH

VIL

Valid

Output Valid

ICC

Yes

Upper Byte Write

VIH

VIL

VIH

VIL

Valid

Invalid

Input Valid

ICC

Yes

Lower Byte Write

VIH

VIL

VIH

VIL

VIH

Valid

Input Valid

Invalid

ICC

Yes

Word Write

VIH

VIL

VIH

VIL

Valid

Input Valid

ICC

Yes

Power-down (3)

VIL

X (1)

Hi-Z

IPD

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