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PDF AM29F200 Data sheet ( Hoja de datos )
| Número de pieza | AM29F200 | |
| Descripción | 2 Megabit (256 K x 8-Bit/128 K x 16-Bit) CMOS 5.0 Volt-only/ Boot Sector Flash Memory | |
| Fabricantes | AMD | |
| Logotipo |  |
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Am29F200B
2 Megabit (256 K x 8-Bit/128 K x 16-Bit)
CMOS 5.0 Volt-only, Boot Sector Flash Memory
DISTINCTIVE CHARACTERISTICS
s 5.0 V ± 10% for read and write operations
— Minimizes system level power requirements
s Manufactured on 0.32 µm process technology
— Compatible with 0.5 µm Am29F200A device
s High performance
— Access times as fast as 45 ns
s Low power consumption
— 20 mA typical active read current (byte mode)
— 28 mA typical active read current for
(word mode)
— 30 mA typical program/erase current
— 1 µA typical standby current
s Sector erase architecture
— One 16 Kbyte, two 8 Kbyte, one 32 Kbyte, and
three 64 Kbyte sectors (byte mode)
— One 8 Kword, two 4 Kword, one 16 Kword, and
three 32 Kword sectors (word mode)
— Supports full chip erase
— Sector Protection features:
A hardware method of locking a sector to
prevent any program or erase operations within
that sector
Sectors can be locked via programming equipment
Temporary Sector Unprotect feature allows code
changes in previously locked sectors
s Top or bottom boot block configurations available
s Embedded Algorithms
— Embedded Erase algorithm automatically
preprograms and erases the entire chip or any
combination of designated sectors
— Embedded Program algorithm automatically
writes and verifies data at specified addresses
s Minimum 1,000,000 write/erase cycles guaranteed
s 20-year data retention at 125°C
— Reliable operation for the life of the system
s Package options
— 44-pin SO
— 48-pin TSOP
— Known Good Die (KGD)
(see publication number 21257)
s Compatible with JEDEC standards
— Pinout and software compatible with
single-power-supply flash
— Superior inadvertent write protection
s Data# Polling and Toggle Bit
— Detects program or erase cycle completion
s Ready/Busy# output (RY/BY#)
— Hardware method for detection of program or
erase cycle completion
s Erase Suspend/Erase Resume
— Supports reading data from a sector not
being erased
s Hardware RESET# pin
— Resets internal state machine to the reading
array data
This Data Sheet states AMD’s current technical specifications regarding the Products described herein. This Data
Sheet may be revised by subsequent versions or modifications due to changes in technical specifications.
Publication# 21526 Rev: B Amendment/+2
Issue Date: July 2, 1999
1 page  
CONNECTION DIAGRAMS
This device is also available in Known Good Die (KGD) form. Refer to publication number 21257 for
more information.
A15
A14
A13
A12
A11
A10
A9
A8
NC
NC
WE#
RESET#
NC
NC
RY/BY#
NC
NC
A7
A6
A5
A4
A3
A2
A1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Standard TSOP
48 A16
47 BYTE#
46 VSS
45 DQ15/A-1
44 DQ7
43 DQ14
42 DQ6
41 DQ13
40 DQ5
39 DQ12
38 DQ4
37 VCC
36 DQ11
35 DQ3
34 DQ10
33 DQ2
32 DQ9
31 DQ1
30 DQ8
29 DQ0
28 OE#
27 VSS
26 CE#
25 A0
21526B-3
A16
BYTE#
VSS
DQ15/A-1
DQ7
DQ14
DQ6
DQ13
DQ5
DQ12
DQ4
VCC
DQ11
DQ3
DQ10
DQ2
DQ9
DQ1
DQ8
DQ0
OE#
VSS
CE#
A0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Reverse TSOP
Am29F200B
48 A15
47 A14
46 A13
45 A12
44 A11
43 A10
42 A9
41 A8
40 NC
39 NC
38 WE#
37 RESET#
36 NC
35 NC
34 RY/BY#
33 NC
32 NC
31 A7
30 A6
29 A5
28 A4
27 A3
26 A2
25 A1
21526B-4
5
5 Page 
Table 4. Am29F200B Autoselect Codes (High Voltage Method)
Description
A16 A11
A8
A5
DQ8
to to to to
to
Mode CE# OE# WE# A12 A10 A9 A7 A6 A2 A1 A0 DQ15
DQ7
to
DQ0
Manufacturer ID: AMD
L L H X X VID X L X L L X
Device ID:
Am29F200B
(Top Boot Block)
Word
Byte
L
L
LH
22h
X X VID X L X L H
LH
X
01h
51h
51h
Device ID:
Word L L H
22h
Am29F200B
X X VID X L X L H
(Bottom Boot Block) Byte L L H
X
57h
57h
Sector Protection Verification L
L H SA X VID X L X H L
X
01h
(protected)
X
00h
(unprotected)
L = Logic Low = VIL, H = Logic High = VIH, SA = Sector Address, X = Don’t care.
Sector Protection/Unprotection
The hardware sector protection feature disables both
program and erase operations in any sector. The hard-
ware sector unprotection feature re-enables both
program and erase operations in previously protected
sectors.
Sector protection/unprotection must be implemented
using programming equipment. The procedure
requires a high voltage (VID) on address pin A9 and the
control pins. Details on this method are provided in a
supplement, publication number 20551. Contact an
AMD representative to obtain a copy of the appropriate
document.
The device is shipped with all sectors unprotected.
AMD offers the option of programming and protecting
sectors at its factory prior to shipping the device
through AMD’s ExpressFlash™ Service. Contact an
AMD representative for details.
It is possible to determine whether a sector is protected
or unprotected. See “Autoselect Mode” for details.
Temporary Sector Unprotect
This feature allows temporary unprotection of previ-
ously protected sectors to change data in-system. The
Sector Unprotect mode is activated by setting the
RESET# pin to VID. During this mode, formerly pro-
tected sectors can be programmed or erased by
selecting the sector addresses. Once VID is removed
from the RESET# pin, all the previously protected
sectors are protected again. Figure 1 shows the algo-
rithm, and the Temporary Sector Unprotect diagram
(Figure 18) shows the timing waveforms, for this
feature.
START
RESET# = VID
(Note 1)
Perform Erase or
Program Operations
RESET# = VIH
Temporary Sector
Unprotect
Completed (Note 2)
Notes:
1. All protected sectors unprotected.
21526B-6
2. All previously protected sectors are protected once
again.
Figure 1. Temporary Sector Unprotect Operation
Hardware Data Protection
The command sequence requirement of unlock cycles
for programming or erasing provides data protection
against inadvertent writes (refer to the Command Defi-
nitions table). In addition, the following hardware data
protection measures prevent accidental erasure or pro-
Am29F200B
11
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