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A29801A Schematic ( PDF Datasheet ) - AMIC

Teilenummer A29801A
Beschreibung Boot Sector Flash Memory
Hersteller AMIC
Logo AMIC Logo 




Gesamt 30 Seiten
A29801A Datasheet, Funktion
A29801A Series
1M X 8 Bit / 512K X 16 Bit CMOS 5.0 Volt-only,
Boot Sector Flash Memory
Document Title
1M X 8 Bit / 512K X 16 Bit CMOS 5.0 Volt-only, Boot Sector Flash Memory
Revision History
Rev. No.
0.0
1.0
1.1
1.2
1.3
History
Initial issue
Remove –I grade spec.
Update ICC3, ICC4, VIH, Absolute Maximum Rating, Program/Erase time
and Data Retention
Error corrections: Modify Table 2. Top Boot Block Sector Address Table
1. Page 6 “Writing Commands/Command Sequences” section :
Change
The “Word/Byte Program Command Sequence” section has details on
programming data to the device using both standard and Unlock Bypass
command sequence.
Into
The “Word/Byte Program Command Sequence” and “Unlock Bypass
Command Sequence” has detail descriptions on programming data to
the device using both standard and Unlock Bypass command sequence.
2. Page 15: Delete Note 10
Page 15: Delete Note 8 and adjust the Notes in the Table 5
Issue Date
May 27, 2013
May 8, 2014
July 31, 2014
August 5, 2014
August 11, 2014
Remark
Preliminary
Final
(August, 2014, Version 1.3)
AMIC Technology, Corp.






A29801A Datasheet, Funktion
A29801A Series
Absolute Maximum Ratings*
Storage Temperature Plastic Packages. . . -65°C to + 150°C
Ambient Temperature with Power Applied. -55°C to + 125°C
Voltage with Respect to Ground
VCC (Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . -2.0V to +6.5V
A9, OE & RESET (Note 2) . . . . . . . . .. . . . -2.0V to +11.5V
All other pins (Note 1) . . . . . . . . . . . . . . . … . . -2.0V to 6.5V
Output Short Circuit Current (Note 3) . . . . . . . …. . 200mA
Notes:
1. Minimum DC voltage on input or I/O pins is -0.5V. During
voltage transitions, input or I/O pins may undershoot VSS
to -2.0V for periods of up to 20ns. Maximum DC voltage
on input and I/O pins is VCC +0.5V. During voltage
transitions, input or I/O pins may overshoot to VCC +1.5V
for periods up to 20ns.
2. Minimum DC input voltage on A9, OE and RESET is -
0.5V. During voltage transitions, A9, OE and RESET
may overshoot VSS to -2.0V for periods of up to 20ns.
Maximum DC input voltage on A9 is +11.5V which may
overshoot to 12.5V for periods up to 20ns.
3. No more than one output is shorted at a time. Duration of
the short circuit should not be greater than one second.
Device Bus Operations
This section describes the requirements and use of the
device bus operations, which are initiated through the
internal command register. The command register itself does
not occupy any addressable memory location. The register is
composed of latches that store the commands, along with
the address and data information needed to execute the
*Comments
Stresses above those listed under "Absolute Maximum
Ratings" may cause permanent damage to this device.
These are stress ratings only. Functional operation of
this device at these or any other conditions above
those indicated in the operational sections of these
specification is not implied or intended. Exposure to
the absolute maximum rating conditions for extended periods
may affect device reliability.
Operating Ranges
Commercial Devices
Ambient Temperature (TA) ……………………… 0°C to +70°C
Extended Range Devices
Ambient Temperature (TA) …………………… -40°C to +85°C
VCC Supply Voltages
VCC for all devices …………………………… +4.5V to +5.5V
Operating ranges define those limits between which the
functionally of the device is guaranteed.
command. The contents of the register serve as inputs to the
internal state machine. The state machine outputs dictate the
function of the device. The appropriate device bus operations
table lists the inputs and control levels required, and the
resulting output. The following subsections describe each of
these operations in further detail.
Table 1. A29801A Device Bus Operations
Operation
Read
Write
CMOS Standby
Output Disable
Hardware Reset
Sector Protect
(See Note 2)
CE OE WE RESET
L LH H
A0 – A18
(Note 1)
AIN
I/O0 - I/O7
DOUT
L HL
H
AIN
DIN
VCC ±
0.3 V
L
X
L
X
H
X
H
X VCC ±
0.3 V
X
High-Z
HH
X High-Z
XL
X High-Z
L VID Sector Address,
DIN
A6=L, A1=H, A0=L
I/O8 - I/O15
BYTE =VIH
DOUT
DIN
High-Z
BYTE =VIL
I/O8~I/O14=High-Z
I/O15=A-1
I/O8~I/O14=High-Z
I/O15=A-1
High-Z
High-Z
High-Z
X
High-Z
High-Z
X
Sector Unprotect
(See Note 2)
Temporary Sector
Unprotect
L H L VID Sector Address,
DIN
A6=H, A1=H, A0=L
X X X VID
AIN
DIN
X
DIN
X
X
Legend:
L = Logic Low = VIL, H = Logic High = VIH, VID = 10.5 ± 1.0V, X = Don't Care, DIN = Data In, DOUT = Data Out, AIN = Address In
Notes:
1. Addresses are A18:A0 in word mode (BYTE=VIH), A18: A-1 in byte mode (BYTE=VIL).
2. See the “Sector Protection/Unprotection” section and Temporary Sector Unprotect for more information.
(August, 2014, Version 1.3)
5 AMIC Technology, Corp.

6 Page









A29801A pdf, datenblatt
START
PLSCNT=1
RESET=V ID
Wait 1 us
Protect all sectors:
The indicated portion of
the sector protect
algorithm must be
performed for all
unprotected sectors prior
to issuing the first sector
unprotect address
A29801A Series
START
PLSCNT=1
RESET=V ID
Wait 1 us
Temporary Sector No
First Write
Unprotect Mode
Cycle=60h?
Yes
Set up sector
address
Sector Protec:
Write 60h to sector
address with A6=0,
A1=1, A0=0
No
First Write
No Temporary Sector
Cycle=60h?
Unprotect Mode
Yes
All sectors
protected?
Yes
Set up first sector
address
Increment
PLSCNT
Wait 150 us
Verify Sector
Protect: Write 40h
to sector address
with A6=0, A1=1,
A0=0
Reset
PLSCNT=1
No
PLSCNT
=25?
Read from
sector address
with A6=0,
A1=1, A0=0
No
Data=01h?
Yes
Device failed
Yes
Protect another
sector?
No
Remove VID
from RESET
Write reset
command
Sector Protect
Algorithm
Sector Protect
complete
Yes
Sector Unprotect:
Write 60h to sector
address with A6=1,
A1=1, A0=0
Increment
PLSCNT
Wait 15 ms
Verify Sector
Unprotect : Write
40h to sector
address with A6=1,
A1=1, A0=0
No
PLSCNT=
1000?
Read from sector
address with A6=1,
A1=1, A0=0
No
Data=00h?
Set up
next sector
address
Yes
Device failed
Yes
Last sector
verified?
No
Sector Unprotect
Algorithm
Yes
Remove VID
from RESET
Write reset
Command
Sector Unprotect
complete
Figure 2. In-System Sector Protect/Unprotect Algorithms
(August, 2014, Version 1.3)
11 AMIC Technology, Corp.

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