參數(shù)資料
型號(hào)： SST49LF004B-33-4C-EIE
廠商： SILICON STORAGE TECHNOLOGY INC
元件分類(lèi)： PROM
英文描述： 4 Mbit LPC Firmware Flash
中文描述： 512K X 8 FLASH 3V PROM, 11 ns, PDSO40
封裝： 10 X 20 MM, LEAD FREE, MO-142CD, TSOP1-40
文件頁(yè)數(shù)： 1/39頁(yè)
文件大小： 460K
代理商： SST49LF004B-33-4C-EIE
2003 Silicon Storage Technology, Inc.
S71232-02-000
1
12/03
The SST logo and SuperFlash are registered trademarks of Silicon Storage Technology, Inc.
Intel is a registered trademark of Intel Corporation.
These specifications are subject to change without notice.
Data Sheet
FEATURES:
SST49LF004B: 512K x8 (4 Mbit)
Conforms to Intel LPC Interface Specification 1.1
– Supports Single-Byte LPC Memory and
Firmware Memory Cycle Types
Flexible Erase Capability
– Uniform 4 KByte sectors
– Uniform 64 KByte overlay blocks
– Chip-Erase for PP Mode Only
Single 3.0-3.6V Read and Write Operations
Superior Reliability
– Endurance: 100,000 Cycles (typical)
– Greater than 100 years Data Retention
Low Power Consumption
– Active Read Current: 6 mA (typical)
– Standby Current: 10 μA (typical)
Fast Sector-Erase/Byte-Program Operation
– Sector-Erase Time: 18 ms (typical)
– Block-Erase Time: 18 ms (typical)
– Chip-Erase Time: 70 ms (typical)
– Byte-Program Time: 14 μs (typical)
– Chip Rewrite Time: 8 seconds (typical)
Two Operational Modes
– Low Pin Count (LPC) interface mode for
in-system operation
– Parallel Programming (PP) mode for fast
production programming
LPC Interface Mode
– 5-signal LPC bus interface supporting byte Read
and Write
– 33 MHz clock frequency operation
– WP# and TBL# pins provide hardware write
protect for entire chip and/or top Boot Block
– Block Locking Registers for individual block
write-lock and lock-down protection
– JEDEC Standard SDP Command Set
– Data# Polling and Toggle Bit for End-of-Write
detection
– 5 GPI pins for system design flexibility
– 4 ID pins for multi-chip selection
Parallel Programming (PP) Mode
– 11-pin multiplexed address and 8-pin data
I/O interface
– Supports fast programming in-system on
programmer equipment
CMOS and PCI I/O Compatibility
Packages Available
– 32-lead PLCC
– 40-lead TSOP (10mm x 20mm)
PRODUCT DESCRIPTION
The SST49LF004B flash memory device is designed to
interface with host controllers (chipsets) that support a low-
pin-count (LPC) interface for BIOS applications. The
SST49LF004B device complies with Intel’s LPC Interface
Specification 1.1, supporting single-byte Firmware Memory
and LPC Memory cycle types.
The SST49LF004B is backward compatible to the
SST49LF00xA Firmware Hub and the SST49LF0x0A LPC
Flash. In this document, FWH mode in the SST49LF00xA
specification is referenced as the Firmware Memory Read/
Write cycle and LPC mode in the SST49LF0x0A specifica-
tion is referenced as the LPC Memory Read/Write cycle.
Two interface modes are supported by the SST49LF004B:
LPC mode (Firmware Memory and LPC Memory cycle
types) for in-system operations and Parallel Programming
(PP) mode to interface with programming equipment.
The SST49LF004B flash memory device is manufactured
with SST’s proprietary, high-performance SuperFlash tech-
nology. The split-gate cell design and thick-oxide tunneling
injector attain greater reliability and manufacturability com-
pared with alternative approaches. The SST49LF004B
device significantly improves performance and reliability,
while lowering power consumption. The SST49LF004B
device writes (Program or Erase) with a single 3.0-3.6V
power supply.
The SST49LF004B provides a maximum Byte-Program
time of 20 μsec. The entire memory can be erased and
programmed byte-by-byte in 8 seconds when using status
detection features such as Toggle Bit or Data# Polling to
indicate the completion of Program operation. To protect
against inadvertent writes, the SST49LF004B device has
on-chip hardware and software write protection schemes. It
is offered with a typical endurance of 100,000 cycles. Data
retention is rated at greater than 100 years.
The SST49LF004B uses less energy during Erase and
Program than alternative flash memory technologies. The
total energy consumed is a function of the applied voltage,
current and time of application. Since for any given voltage
range the SuperFlash technology uses less current to pro-
4 Mbit LPC Firmware Flash
SST49LF004B
SST49LF004B4Mb LPC Firmware memory
相關(guān)PDF資料
PDF描述
SST49LF004B-33-4C-NH 4 Mbit LPC Firmware Flash
SST49LF004B-33-4C-NHE 4 Mbit LPC Firmware Flash
SST49LF040 4 Mbit LPC Flash
SST49LF020 2 Megabit LPC Flash
SST49LF020-33-4C-NH 2 Megabit LPC Flash
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SST49LF004B-33-4C-NH 功能描述:閃存 512K X 8 33ns RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲(chǔ)類(lèi)型:Flash 存儲(chǔ)容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類(lèi)型: 接口類(lèi)型:SPI 訪問(wèn)時(shí)間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel
SST49LF004B-33-4C-NHE 功能描述:閃存 512K X 8 33ns RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲(chǔ)類(lèi)型:Flash 存儲(chǔ)容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類(lèi)型: 接口類(lèi)型:SPI 訪問(wèn)時(shí)間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel
SST49LF004B334CNHT 制造商:SST 功能描述:NEW
SST49LF004B-33-4C-WHE 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:4 Mbit Firmware Hub
SST49LF004C 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:4 Mbit / 8 Mbit LPC Serial Flash
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