AM29F400AT datasheet(27/35 Pages) AMD

部件名	AM29F400AT

功能描述	4 Megabit (524,288 x 8-Bit/262,144 x 16-Bit) CMOS 5.0 Volt-only, Sector Erase Flash Memory

PDF	35 Pages

Scroll/Zoom	100%

制造商	AMD [Advanced Micro Devices]

网页	http://www.amd.com

标志

27 / 35 page

Am29F400AT/Am29F400AB

PRELIMINARY

SWITCHING WAVEFORMS

Notes:

1. PA is address of the memory location to be programmed.

2. PD is data to be programmed at byte address.

3. DQ7 is the output of the complement of the data written to the device.

4. DOUT is the output of the data written to the device.

5. Figure indicates last two bus cycles of four bus cycle sequence.

6. These waveforms are for the x16 mode.

Figure 9.

Program Operation Timings

Notes:

1. SA is the sector address for Sector Erase. Addresses = don’t care for Chip Erase.

2. These waveforms are for the x16 mode.

Figure 10.

AC Waveforms Chip/Sector Erase Operations

DOUT

tAH

Data Polling

tDF

tOH

tOE

tDS

tCS

tWPH

tDH

tWP

tGHWL

Addresses

Data

5.0 V

DQ7

5555H

A0H

3rd Bus Cycle

20380B-16

tWC

tRC

tAS

tWHWH1

tCE

tAS

tWP

tCS

tDH

5555H

2AAAH

Data

VCC

AAH

55H

Addresses

2AAAH

tVCS

tDS

5555H

tWPH

tGHWL

tAH

AAH

55H

80H

10H/30H

20380B-17

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