qh25f320s33b8 Numonyx, qh25f320s33b8 Datasheet - Page 6

• Manufacturer Part Number: qh25f320s33b8
• Description: Numonyx? Serial Flash Memory S33
• Manufacturer: Numonyx

1.0
1.1
1.2
1.3
Datasheet
6
Block:
Cleared:
Page:
Parameter
Block:
Program:
Sector:
Set:
LSB:
MSB:
OTP:
PR:
PRD:
RFU:
SR:
WEL:
WSM:
0x:
0b:
K:
M:
Nibble:
Introduction
This document describes the Numonyx™ Serial Flash Memory (S33) device features,
operation, and specifications.
The S33 device provides superior performance with enhanced security features, taking
advantage of the high quality and reliability of the NOR-based Intel 0.13 µm ETOX* VIII
process technology. Offered in 16-Mbit, 32-Mbit, and 64-Mbit densities, the S33 device
is hardware and software compatible with existing industry offerings to ensure ease of
design.
The S33 device takes advantage of more than one billion units of flash manufacturing
experience and is ideal for code and data applications where simplified interface and
low cost are the primary requirements. Examples include PCs and notebooks, WLAN
and DSL cards and routers, printers, TVs, DVD/CD players and recorders, and other
consumer electronic devices.
Nomenclature
Acronyms
Conventions
A group of flash cells that share common erase circuitry and erase simultaneously. For Serial Flash devices,
Blocks are more commonly referred to as Sectors.
Indicates a logic zero (0).
A 256-byte main memory segment that is aligned to a 256-byte boundary.
An 8-KB memory segment that can be erased independently.
A data write operation to the flash array.
A single 64-KB main block, or all eight of the 8-KB parameter blocks combined.
Indicates a logic one (1).
Hexadecimal prefix
Binary prefix
1,000
1,000,000
4 bits
Least Significant Bit
Most Significant Bit
One-Time Programmable
Protection Register
Protection Register Data
Reserved for Future Use
Status Register
Write Enable Latch
Write State Machine
Numonyx™ Serial Flash Memory (S33)
Order Number: 314822-03
December 2007