MT28F320A18FF-70BET 데이터 시트보기 (PDF) - Micron Technology

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MT28F320A18FF-70BET

FLASH MEMORY

Micron Technology 

PRELIMINARY

2 MEG x 16

1.8V ENHANCED+ BOOT BLOCK FLASH MEMORY

BALL DESCRIPTIONS

48-BALL FBGA

NUMBERS SYMBOL TYPE

DESCRIPTION

D8, C8, B8, A8,

C7, B7, A7, C6,

B6, A6, C5, B5,

C3, A3, C2, B2,

A2, D1, C1, B1,

A1

D7

F8

B3

B4

A5

E7, F7, D5, E5,

F4, D3, E3, F2,

D6, E6, F6, D4,

E4, F3, D2, E2

A4

F5

E1

E8, F1

C4

A0–A20

CE#

OE#

WE#

RP#

WP#

DQ0–DQ15

VPP

VCC

VCCQ

VSS

NC

Input

Input

Input

Input

Input

Input

Input/

Output

Supply

Supply

Supply

Supply

–

Address Inputs: Inputs for the address during READ and WRITE operations.

Addresses are internally latched during WRITE and ERASE cycles.

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

disabled and goes into standby power mode.

Output Enable: Enables the outputs buffer when LOW. When OE# is HIGH, the

output buffers are disabled.

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.

Reset: When RP# is a logic LOW, the device is in reset mode, which drives the

outputs to High-Z and resets the write state machine (WSM). When RP# is at logic

HIGH, the device is in standard operation. When RP# transitions from logic LOW

to logic HIGH, the device resets all blocks to locked and defaults to the read array

mode.

Write Protect: Controls the lock down function of the flexible locking feature.

Data Inputs/Outputs: Inputs array data on the second CE# and WE# cycle during

PROGRAM command. Inputs commands to the command user interface when CE#

and WE# are active.

Block Erase and Program Power Supply: [VPP1 = 0.9V–1.95V or VPP2 = 11.4V–

12.6V]. A valid voltage on this contact allows block erase or data programming.

Memory contents cannot be altered when VPP ≤ VPPLK. Block erase and program

at invalid VPP voltages should not be attempted. It provides factory programming

compatibility when driven to 11.4V–12.6V

Device Power Supply: [1.65V–1.95V] Supplies power for device operation.

I/O Power Supply: [1.65V–1.95V] Supplies power for input/output buffers. This

input should be tied directly to VCC.

Do not float any ground ball.

Internally not connected.

2 Meg x 16, 1.8V Enhanced+ Boot Block Flash Memory

MT28F320A18_3.fm - Rev. 3, Pub. 9/2002

6

©2002, Micron Technology Inc.

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