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W29C102 Schematic ( PDF Datasheet ) - Winbond

Teilenummer W29C102
Beschreibung 64K 16 CMOS FLASH MEMORY
Hersteller Winbond
Logo Winbond Logo 




Gesamt 21 Seiten
W29C102 Datasheet, Funktion
W29C102
64K × 16 CMOS FLASH MEMORY
GENERAL DESCRIPTION
The W29C102 is a 1-megabit, 5-volt only CMOS flash memory organized as 64K × 16 bits. The
device can be programmed and erased in-system with a standard 5V power supply. A 12-volt VPP is
not required. The unique cell architecture of the W29C102 results in fast program/erase operations
www.DataSheet4U.comwith extremely low current consumption (compared to other comparable 5-volt flash memory
products). The device can also be programmed and erased using standard EPROM programmers.
FEATURES
Single 5-volt program and erase operations
Fast page-write operations
128 words per page
Page program cycle: 10 mS (max.)
Effective word-program cycle time: 39 µS
Optional software-protected data write
Fast chip-erase operation: 50 mS
Read access time: 70/90/120 nS
Typical page program/erase cycles: 1K/10K
Ten-year data retention
Software and hardware data protection
Low power consumption
Active current: 25 mA (typ.)
Standby current: 20 µA (typ.)
Automatic program timing with internal VPP
generation
End of program detection
Toggle bit
Data polling
Latched address and data
TTL compatible I/O
JEDEC standard word-wide pinouts
Available packages: 40-pin 600 mil DIP, TSOP
and 44-pin PLCC
Publication Release Date: March 1998
- 1 - Revision A3






W29C102 Datasheet, Funktion
W29C102
Command Codes for Software Data Protection
BYTE SEQUENCE
TO ENABLE PROTECTION
ADDRESS
DATA
0 Write
5555H
AAAAH
1 Write
2AAAH
5555H
www.DataSheet4U.com
2 Write
3 Write
5555H
-
A0A0H
-
4 Write
--
5 Write
--
TO DISABLE PROTECTION
ADDRESS
DATA
5555H
AAAAH
2AAAH
5555H
5555H
8080H
5555H
AAAAH
2AAAH
5555H
5555H
2020H
Software Data Protection Acquisition Flow
Software Data Protection
Enable Flow
Load data AAAA
to
address 5555
Software Data Protection
Disable Flow
Load data AAAA
to
address 5555
Load data 5555
to
address 2AAA
Load data 5555
to
address 2AAA
Load data A0A0
to
address 5555
Load data 8080
to
address 5555
(Optional page-load
operation)
Sequentially load
up to 128 words
of page data
Pause 10 mS
Load data AAAA
to
address 5555
Load data 5555
to
address 2AAA
Exit Load data 2020
to
address 5555
Pause 10 mS
Notes for software program code:
Data Format: DQ15DQ0 (Hex)
Address Format: A14A0 (Hex)
Exit
-6-

6 Page









W29C102 pdf, datenblatt
W29C102
AC Characteristics, continued
DATA Polling Characteristics (1)
PARAMETER
SYMBOL
Data Hold Time
TDH
OE Hold Time
TOEH
www.DataSheet4U.comOE to Output Delay (2)
Write Recovery Time
TOE
TWR
Notes:
(1) These parameters are characterized and not 100% tested.
(2) See TOE spec in A.C. Read Cycle Timing Parameters.
MIN.
10
10
-
0
Toggle Bit Characteristics (1)
PARAMETER
SYMBOL
Data Hold Time
TDH
OE Hold Time
TOEH
OE to Output Delay (2)
TOE
OE High Pulse
TOEHP
Write Recovery Time
TWR
Notes:
(1) These parameters are characterized and not 100% tested.
(2) See TOE spec in A.C. Read Cycle Timing Parameters.
MIN.
10
10
-
150
0
TYP.
-
-
-
-
MAX.
-
-
-
-
UNIT
nS
nS
nS
nS
TYP.
-
-
-
-
-
MAX.
-
-
-
-
-
UNIT
nS
nS
nS
nS
nS
- 12 -

12 Page





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