NX25F041B Datasheet PDF - NexFlash
| Part Number | NX25F041B | |
| Description | (NX25F011B - NX25F041B) SERIAL FLASH MEMORIES | |
| Manufacturers | NexFlash | |
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PRELIMINARY
DECEMBER 2001
NX25F011B, NX25F021B, NX25F041B
1M-BIT, 2M-BIT, AND 4M-BIT
SERIAL FLASH MEMORIES WITH 4-PIN SPI INTERFACE
This document contains PRELIMINARY INFORMATION. NexFlash reserves the right to make changes to its product at any time without notice in order to improve design and supply the best possible
product. We assume no responsibility for any errors which may appear in this publication. Copyright 2001, NexFlash Technologies, Inc.
NexFlash Technologies, Inc.
PRELIMINARY NXSF016F-1201
12/12/01 ©
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NX25F011B
NX25F021B
NX25F041B
FUNCTIONAL OVERVIEW
An architectural block diagram of the NX25F011B,
NX25F021B, and NX25F041B is shown in Figure 2. Key
elements of the architecture include:
• SPI Interface and Command Set Logic
• Serial Flash Memory Array
• Serial SRAM and Program Buffer
• Write Protection Logic
• Configuration and Status Registers
• Device Information Sector
Pin Descriptions
1Package
The NX25F011B, NX25F021B, and NX25F041B are
available in a 28-pin TSOP (Type I) surface mount package.
The NX25F011B and NX25F021B are available in either an
28-pin SOIC and a 14-pin TSOP package (contact NexFlash
for information on the 14-pin TSOP package). The
NX25F041B is also available in a 28-pin SOIC package.
See Figure 3A, 3B and Table 1 for pin assignments. All
interface and supply pins are on one side of the TSOP
3package. The “No Connect” (NC) pins are not connected to
the device, allowing the pads and the area around them to
be used for routing PCB system traces. The devices are
also available in a cost-effective and space-efficient
removable Serial Flash Module package.
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DEVICE INFORMATION SECTOR (DIS)
(READ ONLY)
WP
HOLD
OR R/B
WRITE CONTROL
LOGIC
HOLD OR
READ/BUSY
LOGIC
NexFlash
1, 2 AND 4 M-BIT
SERIAL FLASH MEMORY ARRAY
16 512, 1024 AND 2048
BYTE-ADDRESSABLE
SECTORS OF 264 BYTES EACH
ORGANIZED IN 16, 32, AND 64
BLOCKS OF 32 SECTORS PER BLOCK
CONFIGURATION
REGISTER
STATUS
REGISTER
HIGH-VOLTAGE
GENERATORS
2112
SRAM (264 BYTES)
SCK
CS
SI
SO
SPI
COMMAND
AND
CONTROL
LOGIC
SECTOR-ADDRESS
LATCH
DATA
BYTE-ADDRESS
LATCH/COUNTER
88
8
COLUMN DECODE, SENSE AMP LATCH
AND DATA COMPARE LOGIC
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Figure 2. NX25F011B, NX25F021B, and NX25F041B Architectural Block Diagram
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NexFlash Technologies, Inc.
PRELIMINARY NXSF016F-1201
12/12/01 ©
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Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for NX25F041B electronic component. |
| Information | Total 30 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ NX25F041B.PDF Datasheet ] | |
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