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PDF AM29F004B Data sheet ( Hoja de datos )
| Número de pieza | AM29F004B | |
| Descripción | 4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory | |
| Fabricantes | AMD | |
| Logotipo |  |
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Am29F004B
Data Sheet
This product has been retired and is not recommended for designs. Please contact your Spansion
representative for alternates. Availability of this document is retained for reference and historical
purposes only.
The following document contains information on Spansion memory products.
Continuity of Specifications
There is no change to this data sheet as a result of offering the device as a Spansion product. Any
changes that have been made are the result of normal data sheet improvement and are noted in the
document revision summary.
For More Information
Please contact your local sales office for additional information about Spansion memory solutions.
Publication Number Am29F004B_00 Revision E Amendment 4 Issue Date May 9, 2006
1 page  
DATA SHEET
TABLE OF CONTENTS
Product Selector Guide . . . . . . . . . . . . . . . . . . . . . 4
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . . 5
Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Logic Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . 7
Device Bus Operations . . . . . . . . . . . . . . . . . . . . . . 8
Am29F004B Device Bus Operations ................................................8
Requirements for Reading Array Data ..................................... 8
Writing Commands/Command Sequences .............................. 8
Program and Erase Operation Status ...................................... 8
Standby Mode .......................................................................... 8
Output Disable Mode ................................................................ 9
Am29F004B Top Boot Block Sector Addresses ...............................9
Am29F004B Bottom Boot Block Sector Addresses ..........................9
Autoselect Mode ..................................................................... 10
Am29F004B Autoselect Codes (High Voltage Method) ..................10
Sector Protection/Unprotection ............................................... 10
In-System Sector Protect/Sector Unprotect Algorithms ..................11
Temporary Sector Unprotect .................................................. 12
Temporary Sector Unprotect Operation ..........................................12
Hardware Data Protection ...................................................... 13
Low VCC Write Inhibit ......................................................................13
Write Pulse Glitch Protection ..........................................................13
Logical Inhibit ..................................................................................13
Power-Up Write Inhibit ....................................................................13
Command Definitions . . . . . . . . . . . . . . . . . . . . . . 13
Reading Array Data ................................................................ 13
Reset Command ..................................................................... 13
Autoselect Command Sequence ............................................ 13
Byte Program Command Sequence ....................................... 13
Program Operation ..........................................................................14
Chip Erase Command Sequence ........................................... 14
Sector Erase Command Sequence ........................................ 14
Erase Operation ..............................................................................15
Erase Suspend/Erase Resume Commands ........................... 15
Am29F004B Command Definitions .................................................16
Write Operation Status . . . . . . . . . . . . . . . . . . . . . 17
DQ7: Data# Polling ................................................................. 17
Data# Polling Algorithm ...................................................................17
DQ6: Toggle Bit I .................................................................... 18
DQ2: Toggle Bit II ................................................................... 18
Reading Toggle Bits DQ6/DQ2 ............................................... 18
DQ5: Exceeded Timing Limits ................................................ 18
DQ3: Sector Erase Timer ....................................................... 18
Toggle Bit Algorithm ....................................................................... 19
Write Operation Status ................................................................... 19
Absolute Maximum Ratings . . . . . . . . . . . . . . . . 20
Maximum Negative Overshoot Waveform ..................................... 20
Maximum Positive Overshoot Waveform ....................................... 20
Operating Ranges . . . . . . . . . . . . . . . . . . . . . . . . 20
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 21
TTL/NMOS Compatible .......................................................... 21
CMOS Compatible .................................................................. 22
Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Test Setup ...................................................................................... 23
Test Specifications ......................................................................... 23
Key to Switching Waveforms . . . . . . . . . . . . . . . 23
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 24
Read Operations .................................................................... 24
Read Operations Timings .............................................................. 24
Erase/Program Operations ..................................................... 25
Program Operation Timings ........................................................... 26
Chip/Sector Erase Operation Timings ............................................ 26
Data# Polling Timings (During Embedded Algorithms) .................. 27
Toggle Bit Timings (During Embedded Algorithms) ....................... 27
DQ2 vs. DQ6.................................................................................. 27
Sector Unlock Sequence Timing Diagram ..................................... 28
Sector Relock Timing Diagram ...................................................... 28
Sector Protect/Unprotect Timing Diagram ..................................... 29
Alternate CE# Controlled Erase/Program Operations ............ 30
Alternate CE# Controlled Write Operation Timings ........................ 31
Erase and Programming Performance . . . . . . . 32
Latchup Characteristics . . . . . . . . . . . . . . . . . . . 32
PLCC Pin Capacitance . . . . . . . . . . . . . . . . . . . . 32
Data Retention . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . 33
PL 032—32-Pin Plastic Leaded Chip Carrier ......................... 33
Revision Summary . . . . . . . . . . . . . . . . . . . . . . . . 34
May 9, 2006 Am29F004B_00_E4
Am29F004B
3
5 Page 
DATA SHEET
Output Disable Mode
When the OE# input is at VIH, output from the device is dis-
abled. The output pins are placed in the high impedance
state.
Sector
SA0
SA1
SA2
SA3
SA4
SA5
SA6
SA7
SA8
SA9
SA10
Sector
SA0
SA1
SA2
SA3
SA4
SA5
SA6
SA7
SA8
SA9
SA10
Table 2. Am29F004B Top Boot Block Sector Addresses
A18 A17 A16 A15 A14 A13
Sector Size
(Kbytes)
0 0 0XXX
64
0 0 1XXX
64
0 1 0XXX
64
0 1 1XXX
64
1 0 0XXX
1 0 1XXX
1 1 0XXX
64
64
64
1 1 1 0XX
32
111100
8
111101
8
11111X
16
Table 3. Am29F004B Bottom Boot Block Sector Addresses
A18 A17 A16 A15 A14 A13
00000X
000010
000011
0 0 0 1XX
0 0 1XXX
0 1 0XXX
0 1 1XXX
1 0 0XXX
1 0 1XX0
1 1 0XX1
1 1 1XXX
Sector Size
(Kbytes)
16
8
8
32
64
64
64
64
64
64
64
Address Range
(in hexadecimal)
00000h–0FFFFh
10000h–1FFFFh
20000h–2FFFFh
30000h–3FFFFh
40000h–4FFFFh
50000h–5FFFFh
60000h–6FFFFh
70000h–77FFFh
78000h–79FFFh
7A000h–7BFFFh
7C000h–7FFFFh
Address Range
(in hexadecimal)
00000h–03FFFh
04000h–05FFFh
06000h–07FFFh
08000h–0FFFFh
10000h–1FFFFh
20000h–2FFFFh
30000h–3FFFFh
40000h–4FFFFh
50000h–5FFFFh
60000h–6FFFFh
70000h–7FFFFh
May 9, 2006 Am29F004B_00_E4
Am29F004B
9
11 Page | ||
| Páginas | Total 37 Páginas | |
| PDF Descargar | [ Datasheet AM29F004B.PDF ] | |
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