參數(shù)資料
型號： A49LF004
廠商： AMIC Technology Corporation
英文描述： 4 Mbit CMOS 3.3Volt-only Firmware Hub Flash Memory
中文描述： 4兆位的CMOS 3.3Volt只閃存固件集線器
文件頁數(shù)： 2/32頁
文件大小： 595K
代理商： A49LF004
A49LF004
4 Mbit CMOS 3.3Volt-only Firmware Hub Flash Memory
Preliminary
PRELIMINARY (November, 2003, Version 0.0)
1
AMIC Technology, Corp.
FEATURES
Single Power Supply Operation
-
Low voltage range: 3.0 V - 3.6 V for Read and Write
Operations
Standard Intel Firmware Hub Interface
-
Read compatible to Intel 82802 Firmware
Hub devices
Memory Configuration
-
512K x 8 (4 Mbit)
Block Architecture
-
4Mbit: eight uniform 64KByte blocks
-
Supports full chip erase for Address/Address
Multiplexed (A/A Mux) mode
Automatic Erase and Program Operation
-
Embedded Byte Program and Block/Chip Erase
algorithms
-
Typical 10 μs/byte programming time
-
Typical 1s block erase time
Two Operational Modes
-
Firmware Hub Interface (FWH) Mode for in-system
operation
-
Address/Address Multiplexed (A/A Mux) Interface
Mode for programming equipment
Firmware Hub (FWH) Mode
-
33 MHz synchronous operation with PCI bus
-
5-signal communication interface for in-system read
and write operations
GENERAL DESCRIPTION
-
-
-
-
-
-
-
Standard SDP Command Set
Data# Polling (I/O
7
) and Toggle Bit (I/O
6
) features
Block Locking Register for all blocks
4 ID pins for multi-chip selection
5 GPI pins for General Purpose Input Register
TBL# pin for hardware write protection to Boot Block
WP# pin for hardware write protection to whole
memory array except Boot Block
Address/Address Multiplexed (A/A Mux) Mode
-
11-pin multiplexed address and 8-pin data I/O
interface
-
Supports fast programming on EPROM programmers
-
Standard SDP Command Set
-
Data# Polling (I/O
7
) and Toggle Bit (I/O
6
) features
Lower Power Consumption
-
Typical 12mA active read current
-
Typical 24mA program/erase current
High Product Endurance
-
Guarantee 100,000 program/erase cycles for each
block
-
Minimum 20 years data retention
Compatible Pin-out and Packaging
-
32-pin (8 mm x 14 mm) TSOP (TYPE I)
-
32-pin PLCC
The A49LF004 flash memory device is designed to be read-
compatible with the Intel 82802 Firmware Hub (FWH)
device for PC-BIOS application. This device is designed to
use a single low voltage, range from 3.0 Volt to 3.6 Volt
power supply to perform in-system or off-system read and
write operations. It provides protection for the storage and
update of code and data in addition to adding system
design flexibility through five general-purpose inputs. Two
interface modes are supported by the A49LF004: Firmware
Hub (FWH) Interface mode for In-System programming and
Address/Address Multiplexed (A/A Mux) mode for fast
factory programming of PC-BIOS applications.
The memory is divided into eight uniform 64Kbyte blocks
that can be erased independently without affecting the data
in other blocks. Blocks also can be protected individually to
prevent accidental Program or Erase commands from
modifying the memory. The Program and Erase operations
are executed by issuing the Program/Erase commands into
the command interface by which activating the internal
control logic to automatically process the Program/Erase
procedures. The device can be programmed on a byte-by-
byte basis after performing the Erase operation. In addition
to the Block Erase operation, the Chip Erase feature is
provided in A/A Mux mode that allows the whole memory to
be erased in one single Erase operation. The A49LF004
provides the status detection such as Data# Polling and
Toggle Bit Functions in both FWH and A/A Mux modes. The
process or completion of Program and Erase operations
can be detected by reading the status bits.
The A49LF004 is offered in 32-lead TSOP and 32-lead
PLCC packages. See Figures 1 and 2 for pin assignments
and Table 1 for pin descriptions.
相關(guān)PDF資料
PDF描述
A49LF040A 4 Mbit CMOS 3.3Volt-only Low Pin Count Flash Memory
A49LF040ATL-33 4 Mbit CMOS 3.3Volt-only Low Pin Count Flash Memory
A49LF040ATL-33F 4 Mbit CMOS 3.3Volt-only Low Pin Count Flash Memory
A49LF040ATX-33 4 Mbit CMOS 3.3Volt-only Low Pin Count Flash Memory
A49LF040ATX-33F 4 Mbit CMOS 3.3Volt-only Low Pin Count Flash Memory
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
A49LF004TL-33C 制造商:AMICC 制造商全稱:AMIC Technology 功能描述:4 Mbit CMOS 3.3Volt-only Firmware Hub Flash Memory
A49LF004TX-33C 制造商:AMICC 制造商全稱:AMIC Technology 功能描述:4 Mbit CMOS 3.3Volt-only Firmware Hub Flash Memory
A49LF040 制造商:AMICC 制造商全稱:AMIC Technology 功能描述:4 Mbit CMOS 3.3Volt-only Low Pin Count Flash Memory
A49LF040A 制造商:AMICC 制造商全稱:AMIC Technology 功能描述:4 Mbit CMOS 3.3Volt-only Low Pin Count Flash Memory
A49LF040ATL-33 制造商:AMICC 制造商全稱:AMIC Technology 功能描述:4 Mbit CMOS 3.3Volt-only Low Pin Count Flash Memory
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