W29C040P-90 Winbond Electronics, W29C040P-90 Datasheet - Page 2
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W29C040P-90
Manufacturer Part Number
W29C040P-90
Description
Manufacturer
Winbond Electronics
Datasheet
1.W29C040P-90.pdf
(28 pages)
Specifications of W29C040P-90
Density
4Mb
Access Time (max)
90ns
Interface Type
Parallel
Boot Type
Bottom/Top
Address Bus
19b
Operating Supply Voltage (typ)
5V
Operating Temp Range
0C to 70C
Package Type
PLCC
Program/erase Volt (typ)
5V
Sync/async
Asynchronous
Operating Temperature Classification
Commercial
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Word Size
8b
Number Of Words
512K
Supply Current
50mA
Mounting
Surface Mount
Pin Count
32
Lead Free Status / Rohs Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
W29C040P-90
Manufacturer:
WINBOND
Quantity:
1 000
Company:
Part Number:
W29C040P-90
Manufacturer:
WINBOND
Quantity:
35
Company:
Part Number:
W29C040P-90
Manufacturer:
WINBOND
Quantity:
6
Part Number:
W29C040P-90
Manufacturer:
WINBOND/华邦
Quantity:
20 000
Company:
Part Number:
W29C040P-90B
Manufacturer:
WINBOND
Quantity:
4 500
Company:
Part Number:
W29C040P-90B
Manufacturer:
Winbond
Quantity:
18
Part Number:
W29C040P-90B
Manufacturer:
WINBOND/华邦
Quantity:
20 000
Part Number:
W29C040P-90Z
Manufacturer:
WINBOND/华邦
Quantity:
20 000
1. GENERAL DESCRIPTION
The W29C040 is a 4-megabit, 5-volt only CMOS page mode Flash Memory organized as 512K × 8
bits. The device can be written (erased and programmed) in-system with a standard 5V power supply.
A 12-volt V
program) operations with extremely low current consumption (compared to other comparable 5-volt
flash memory products.) The device can also be erased and programmed by using standard EPROM
programmers.
2. FEATURES
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Single 5-volt write (erase and program)
operations
Fast page-write operations
− 256 bytes per page
− Page write (erase/program) cycle: 5 mS
− Effective byte-write (erase/program) cycle
− Optional software-protected data write
Fast chip-erase operation: 50 mS
Two 16 KB boot blocks with lockout
Page write (erase/program) cycles: 50K (typ.)
Read access time: 70/90/120 nS
Ten-year data retention
(typ.)
time: 19.5 μS
PP
is not required. The unique cell architecture of the W29C040 results in fast write (erase/
- 2 -
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Available packages: 32-pin 600 mil DIP, TSOP
and PLCC
Software and hardware data protection
Low power consumption
− Active current: 25 mA (typ.)
− Standby current: 20 μA (typ.)
Automatic write (erase/program) timing with
internal V
End of write (erase/program) detection
− Toggle bit
− Data polling
Latched address and data
All inputs and outputs directly TTL compatible
JEDEC standard byte-wide pinouts
PP
generation
W29C040