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S29AL004D
4 Megabit (512 K x 8-Bit/256 K x 16-Bit)
CMOS 3.0 Volt-only Boot Sector Flash Memory
General Description
The S29AL004D is a 4 Mbit, 3.0 volt-only Flash memory organized as 524,288 bytes or 262,144 words. The device is offered in 48-ball FBGA, 44-pin SO, and 48-pin TSOP packages. The word-wide data (x16) appears on DQ15–DQ0; the byte-wide (x8) data appears on DQ7–DQ0. This device requires only a single, 3.0 volt VCC supply to perform read, program, and erase operations. A standard EPROM programmer can also be used to program and erase the device.
Distinctive Characteristics
Architectural Advantages
- Single power supply operation
- 2.7 to 3.6 volt read and write operations for battery-powered applications
- Manufactured on 200nm process technology
- Compatible with 320nm Am29LV400B and MBM29LV400T/BC
- Flexible Sector Architecture
- 16 Kbyte, two 8 Kbyte, one 32 Kbyte, and seven 64 Kbyte sectors (byte mode)
- One 8 Kword, two 4 Kword, one 16 Kword, and seven 32 Kword sectors (word mode)
- Supports full chip erase
- Unlock Bypass Program Command
- Reduces overall programming time when issuing multiple program command sequences
- Top or bottom boot block configurations available
- Embedded Algorithms
- Embedded Erase algorithm automatically preprograms and erases the entire chip or any combination of designated sectors
- Program algorithm automatically writes and verifies data at specified addresses
- Compatibility with JEDEC standards
- Pinout and software compatible with single-power supply Flash
- Superior inadvertent write protection
- Sector Protection features
- A hardware method of locking a sector to prevent any program or erase operations within that sector
- Sectors can be locked in-system or via programming equipment
- Temporary Sector Unprotect feature allows code changes in previously locked sectors
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Performance Characteristics
- High performance
- Access times as fast as 70 ns
- Ultra low power consumption (typical values at 5 MHz)
- 200 nA Automatic Sleep mode current
- 200 nA standby mode current
- 9 mA read current
- 20 mA program/erase current
- Cycling endurance: 1,000,000 cycles per sector typical
- Data retention: 20 years typical
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Package Options
- 48-ball FBGA
- 48-pin TSOP
- 44-pin SO
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Software Features
- Data# Polling and toggle bits
- Provides a software method of detecting program or erase operation completion
- Erase Suspend/Erase Resume
- Suspends an erase operation to read data from, or program data to, a sector that is not being erased, then resumes the erase operation
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Hardware Features
- Ready/Busy# pin (RY/BY#)
- Provides a hardware method of detecting program or erase cycle completion
- Hardware reset pin (RESET#)
- Hardware method to reset the device to reading array data
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