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componentes Descripción

Fabricante

MT28F160A3

1 MEG x 16 ENHANCED BOOT BLOCK FLASH MEMORY

Micron Technology 

ADVANCE

1 MEG x 16

ENHANCED BOOT BLOCK FLASH MEMORY

BALL DESCRIPTIONS

46-BALL FBGA

NUMBERS SYMBOL

3B

WE#

TYPE

Input

5A

WP#

Input

7D

CE#

Input

4B

RP#

Input

8F

OE#

Input

1A, 1B, 1C, 1D,

2A, 2B, 2C, 3A,

3C, 5B, 6A, 6B,

6C, 7A, 7B, 7C,

8A, 8B, 8C, 8D

A0-A19

2D, 2E, 2F, 3D,

3E, 3F, 4D, 4E,

4F, 5D, 5E, 6D,

6E, 6F, 7E, 7F

DQ0-DQ15

4A

VPP

Input

Input/

Output

Supply

5F

1E

1F, 8E

VCC

VCCQ

VSS

Supply

Supply

Supply

DESCRIPTION

Write Enable: Determines if a given cycle is a WRITE cycle. If WE# is

LOW, the cycle is either a WRITE to the command state machine (CSM)

or to the memory array.

Write Protect: Unlocks the boot blocks when HIGH if VPP = 2.7V–3.3V

or 5V (WRITE only) and RP# = VIH for WRITE or ERASE. Does not affect

WRITE or ERASE operation on other blocks.

Chip Enable: Activates the device when LOW. When CE# is HIGH, the

device is disabled and goes into standby power mode.

Reset/Power-Down: When LOW, RP# clears the status register, sets the

write state machine (WSM) to the array read mode and places the

device in deep power-down mode. All inputs, including CE#, are

“Don’t Care,” and all outputs are High-Z. RP# must be held at VIH

during all other modes of operation.

Output Enable: Enables data output buffers when LOW. When OE# is

HIGH, the output buffers are disabled.

Address Inputs: These address inputs select a unique, 16-bit word out

of the 1,048,576 available.

Data I/O: These data I/O are data output lines during any READ

operation or data input lines during a WRITE. Data I/O are used to

input commands to the CSM.

Write/Erase Supply Voltage: From a WRITE or ERASE CONFIRM until

completion of the operation, VPP must be 2.7V–3.3V or 5V (WRITE

only). VPP = “Don’t Care” during all other operations.

Power Supply: 2.7V–3.3V.

I/O Supply Voltage: 2.7V–3.3V.

Ground.

1 Meg x 16 Enhanced Boot Block Flash Memory

MT28F160A3_3.p65 – Rev. 3, Pub. 8/01

3

Micron Technology, Inc., reserves the right to change products or specifications without notice.

©2001, Micron Technology, Inc.

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