W39V040FAP Winbond Electronics, W39V040FAP Datasheet - Page 4

• Manufacturer Part Number: W39V040FAP
• Manufacturer: Winbond Electronics

Specifications of W39V040FAP

• Density: 4Mb
• Access Time (max): 150ns
• Interface Type: Parallel/Serial
• Boot Type: Top
• Address Bus: 4/11Bit
• Operating Supply Voltage (typ): 3/3.3V
• Operating Temp Range: 0C to 70C
• Package Type: PLCC
• Program/erase Volt (typ): 3.3V
• Sync/async: Async/Sync
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Word Size: 8b
• Number Of Words: 512K
• Supply Current: 20mA
• Mounting: Surface Mount
• Pin Count: 32
• Lead Free Status / Rohs Status: Not Compliant

1. GENERAL DESCRIPTION
The W39V040FA is a 4-megabit, 3.3-volt only CMOS flash memory organized as 512K × 8 bits. For
flexible erase capability, the 4Mbits of data are divided into 8 uniform sectors of 64 Kbytes, which are
composed of 16 smaller even pages with 4 Kbytes. The device can be programmed and erased in-
system with a standard 3.3V power supply. A 12-volt VPP is not required. The unique cell architecture
of the W39V040FA results in fast program/erase operations with extremely low current consumption.
This device can operate at two modes, Programmer bus interface mode and FWH bus interface
mode. As in the Programmer interface mode, it acts like the traditional flash but with a multiplexed
address inputs. But in the FWH interface mode, this device complies with the Intel FWH specification.
The device can also be programmed and erased using standard EPROM programmers.
2. FEATURES
•
•
•
•
•
•
•
•
•
Single 3.3-volt operations:
− 3.3-volt Read
− 3.3-volt Erase
− 3.3-volt Program
Fast Program operation:
− Byte-by-Byte programming: 35 μS (typ.)
Fast Erase operation:
− Chip erase 100 mS (max.)
− Sector erase 25 mS (max.)
− Page erase 25 mS (max.)
Fast Read access time: Tkq 11 nS
Endurance: 10K cycles (typ.)
Twenty-year data retention
8 Even sectors with 64K bytes each, which is
composed of 16 flexible pages with 4K bytes
Any individual sector or page can be erased
Hardware protection:
− Optional 16K byte or 64K byte Top Boot
Block with lockout protection
- 4 -
•
•
•
•
•
•
•
− #TBL & #WP support the whole chip
Flexible 4K-page size can be used as
Parameter Blocks
Low power consumption
− Active current: 12.5 mA (typ. for FWH
Automatic program and erase timing with
internal V
End of program or erase detection
− Toggle bit
− Data polling
Latched address and data
TTL compatible I/O
Available packages: 32L PLCC, 32L STSOP,
40L TSOP (10 x 20 mm), 32L PLCC Lead
free, 32L STSOP Lead free and 40L TSOP
(10 x 20 mm) Lead free
hardware protection
mode)
PP
generation
W39V040FA