S29PL-N datasheet(45/85 Pages) SPANSION

부품명	S29PL-N

상세설명	256/128/128 Mb (16/8/8 M x 16-Bit) CMOS, 3.0 Volt-only Simultaneous Read/Write, Page-Mode Flash Memory

PDF	85 Pages

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제조업체	SPANSION [SPANSION]

홈페이지	http://www.spansion.com

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November 23, 2005 S29PL-N_00_A4

S29PL-N MirrorBit™ Flash Family

Preliminary

7.5

Simultaneous Read/Write

The simultaneous read/write feature allows the host system to read data from one bank of mem-

ory while programming or erasing another bank of memory. An erase operation may also be

suspended to read from or program another location within the same bank (except the sector

being erased). Figure 11.12, Back-to-back Read/Write Cycle Timings shows how read and write

cycles may be initiated for simultaneous operation with zero latency. See the table, DC Charac-

teristics for read-while-program and read-while-erase current specifications.

Note: Amax = A23 (PL256N), A22 (PL127N)

Figure 7.5 Simultaneous Operation Block Diagram for S29PL256N and S29PL127N

VCC

VSS

Bank A Address

Bank B Address

Amax – A0

RESET#

WE#

CE#

DQ0 – DQ15

State

Control

and

Command

RY/BY#

Bank A

X-Decoder

OE#

DQ15 – DQ0

Status

Control

Amax–A0

Amax – A0

Mux

Bank B

X-Decoder

Bank C

X-Decoder

Bank D

X-Decoder

Bank C Address

Bank D Address

WP#/ACC

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