ACT-F128K8N-090F7I [ETC]
EEPROM ; EEPROM\n
| 型号： | ACT-F128K8N-090F7I |
| 厂家： | 
ETC |
| 描述： | EEPROM
|
| 文件： | 总21页 (文件大小：155K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ACT–F128K8 High Speed
1 Megabit Monolithic FLASH
CIRCUIT TECHNOLOGY
www.aeroflex.com
Features
■ Low Power Monolithic 128K x 8 FLASH
■ Industry Standard Pinouts
■ TTL Compatible Inputs and CMOS Outputs ■ Packaging – Hermetic Ceramic
● 32 Lead, 1.6" x .6" x .20" Dual-in-line Package (DIP),
■ Access Times of 60, 70, 90, 120 and 150ns
■ +5V Programing, +5V Supply
■ 100,000 Erase / Program Cycles
■ Low Standby Current
Aeroflex code# "P4"
● 32 Lead, .82" x .41" x .125" Ceramic Flat Package
(FP), Aeroflex code# "F6"
● 32 Lead, .82" x .41" x .132" Ceramic Flat Package
(FP Lead Formed), Aeroflex code# "F7"
■ Sector Architecture
■ Page Program Operation and Internal
● 8 Equal size sectors of 16K bytes each
● Any Combination of Sectors can be erased with one
command sequence.
Program Control Time
■ Supports Full Chip Erase
■ Commercial, Industrial and Military
■ Embedded Erase and Program Algorithms
■ Supports Full Chip Erase
Temperature Ranges
■ DESC SMD Pending
■ MIL-PRF-38534 Compliant Circuits Available
5962-96690 (P4,F6,F7)
Block Diagram – DIP (P4) & Flat Packages (F6,F7)
General Description
The ACT–F128K8 is a high
CE
WE
OE
A0 – A16
speed,
monolithic
1
megabit CMOS
Flash module
designed for full temperature
range military, space, or high
reliability applications.
Vss
512Kx8
Vcc
This device is input TTL and
output CMOS compatible. The
command register is written by
bringing write enable (WE) and
chip enable (CE) to a logic low
level and output enable (OE) to a
logic high level. Reading is
accomplished when WE is high
and CE, OE are both low, see
Figure 9. Access time grades of
60ns, 70ns, 90ns, 120ns and
150ns maximum are standard.
8
I/O0-7
Pin Description
I/O0-7
Data I/O
A0–16 Address Inputs
WE
CE
Write Enable
Chip Enable
Output Enable
Power Supply
Ground
OE
VCC
VSS
The
ACT–F128K8
is
NC Not Connected
available
in a choice of
eroflex Circuit Technology - Advanced Multichip Modules © SCD1676 REV A 5/6/98
General Description, Cont’d,
hermetically sealed ceramic packages; a
32 lead .82" x .41" x .125" flat package in
both formed or unformed leads or a 32 pin
1.6"x.60" x.20" DIP package for operation
over the temperature range -55°C to
second. Erase is accomplished by
executing the erase command sequence.
This will invoke the Embedded Erase
Algorithm which is an internal algorithm
that automatically preprograms the array, (if
it is not already programmed before)
executing the erase operation. During
erase, the device automatically times the
erase pulse widths and verifies proper cell
margin.
+125°C
and
military
environmental
conditions.
The flash memory is organized as
128Kx8
bits and is designed to be
programmed in-system with the standard
system 5.0V Vcc supply. A 12.0V VPP is
not required for write or erase operations.
The device can also be reprogrammed with
standard EPROM programmers (with the
proper socket).
Also the device features a sector erase
architecture. The sector mode allows for
16K byte blocks of memory to be erased
and reprogrammed without affecting other
blocks. The ACT-F128K8 is erased when
shipped from the factory.
The standard ACT–F128K8 offers
access times between 60ns and 150ns,
The device features single 5.0V power
supply operation for both read and write
allowing
operation
of
high-speed
microprocessors without wait states. To functions.
lnternally
generated
and
eliminate bus contention, the device has
separate chip enable (CE), write enable
(WE) and output enable (OE) controls. The
ACT–F128K8 is command set compatible
with JEDEC standard 1 Mbit EEPROMs.
Commands are written to the command
register using standard microprocessor
write timings. Register contents serve as
input to an internal state-machine which
controls the erase and programming
circuitry. Write cycles also internally latch
addresses and data needed for the
programming and erase operations.
regulated voltages are provided for the
program and erase operations. A low VCC
detector
automatically
inhibits
write
operations on the loss of power. The end of
program or erase is detected by Data
Polling of D7 or by the Toggle Bit feature on
D6. Once the end of a program or erase
cycle has been completed, the device
internally resets to the read mode.
All bits of each die, or all bits within a
sector of
a
die, are erased via
Fowler-Nordhiem tunneling. Bytes are
programmed one byte at a time by hot
electron injection.
Reading data out of the device is similar
to reading from 12.0V Flash or EPROM
devices. The ACT–F128K8 is programmed
by executing the program command
sequence. This will invoke the Embedded
Program Algorithm which is an internal
algorithm that automatically times the
program pulse widths and verifies proper
cell margin. Typically, each sector can be
programmed and verified in less than 0.3
A DESC Standard Military Drawing
(SMD) number is pending.
2
Aeroflex Circuit Technology
SCD1676 REV A 5/6/98 Plainview NY (516) 694-6700
z
Absolute Maximum Ratings
Parameter
Symbol
TC
Range
-55 to +125
-65 to +150
-2.0 to +7.0
-2.0 to +7.0
300
Units
°C
Case Operating Temperature
Storage Temperature Range
Supply Voltage Range
TSTG
VCC
°C
V
VG
V
Signal Voltage Range (Any Pin Except A9) Note 1
Maximum Lead Temperature (10 seconds)
Data Retention
°C
10
Years
100,000 Minimum
-2.0 to +14.0
Endurance (Write/Erase cycles)
A9 Voltage for sector protect, Note 2
VID
V
Note 1. Minimum DC voltage on input or I/O pins is -0.5V. During voltage transitions, inputs 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, inputs and I/O pins may
overshoot to VCC + 2.0V for periods up to 20 ns.
Note 2. Minimum DC input voltage on A9 is -0.5V. During voltage transitions, A9 may undershoot VSS to -2.0V for periods of up to 20ns.
Maximum DC input voltage on A9 is +12.5V which may overshoot to 14.0V for periods up to 20ns.
Normal Operating Conditions
Symbol
VCC
VIH
Parameter
Minimum
+4.5
Maximum
Units
V
+5.5
Power Supply Voltage
Input High Voltage
+2.0
V
+ 0.5
V
CC
+0.8
VIL
-0.5
V
Input Low Voltage
Tc
-55
+125
12.5
°C
V
Operating Temperature (Military)
A9 Voltage for sector protect
VID
11.5
Capacitance
(VIN= 0V, f = 1MHz, Tc = 25°C)
Symbol Parameter
Maximum
Units
CAD
15
15
15
15
15
pF
pF
pF
pF
pF
A0 – A16 Capacitance
OE Capacitance
COE
CWE
Write Enable Capacitance
Chip Enable Capacitance
I/O0 – I/O7 Capacitance
CCE
CI/O
Parameters Guaranteed but not tested
DC Characteristics – CMOS Compatible
(Vcc = 5.0V, Vss = 0V, Tc = -55°C to +125°C, unless otherwise indicated)
Speeds 60, 70, 90, 120 & 150ns
Parameter
Sym
Conditions
Minimum
Maximum
Units
µA
µA
mA
mA
mA
V
ILI
10
10
Input Leakage Current
VCC = 5.5V, VIN = GND to VCC
VCC = 5.5V, VIN = GND to VCC
CE = VIL, OE = VIH, f = 5MHz
CE = VIL, OE = VIH
ILO
Output Leakage Current
ICC1
ICC2
ICC3
VOL
VOH
VLKO
35
Active Operating Supply Current for Read (1)
Active Operating Supply Current for Program or Erase (2)
Operating Standby Supply Current
Output Low Voltage
50
1.6
0.45
VCC = 5.5V, CE = VIH, f = 5MHz
IOL = +8.0 mA, VCC = 4.5V
IOH = –2.5 mA, VCC = 4.5V
0.85 x VCC
3.2
V
Output High Voltage
V
Low Power Supply Lock-Out Voltage (4)
Note 1. The Icc current listed includes both the DC operating current and the frequency dependent component (At 6 MHz). The frequency
component typically is less than 2 mA/MHz, with OE at VIN.
Note 2. Icc active while Embedded Algorithm (Program or Erase) is in progress.
Note 3. DC Test conditions: VIL = 0.3V, VIH = VCC - 0.3V, unless otherwise indicated.
Note 4. Parameter Guaranteed by design, but not tested.
3
Aeroflex Circuit Technology
SCD1676 REV A 5/6/98 Plainview NY (516) 694-6700
AC Characteristics – Read Only Operations
(Vcc = 5.0V, Vss = 0V, Tc = -55°C to +125°C)
Symbol
–60
–70
–90
–120
–150
Parameter
Units
JEDEC Stand’d Min Max Min Max Min Max Min Max Min Max
tAVAV
tAVQV
tELQV
tGLQV
tEHQZ
tGHQZ
tAXQX
tRC
tACC
tCE
60
70
90
120
150
ns
ns
ns
ns
ns
ns
ns
Read Cycle Time
60
60
30
20
20
70
70
35
20
20
90
90
40
25
25
120
120
50
150
150
55
Address Access Time
Chip Enable Access Time
tOE
tDF
Output Enable to Output Valid
30
35
Chip Enable to Output High Z (1)
Output Enable High to Output High Z(1)
Output Hold from Address, CE or OE Change, Whichever is First
Note 1. Guaranteed by design, but not tested
tDF
30
35
tOH
0
0
0
0
0
AC Characteristics – Write/Erase/Program Operations, WE Controlled
(Vcc = 5.0V, Vss = 0V, Tc = -55°C to +125°C)
Symbol
–60
–70
–90
–120
–150
Parameter
Units
JEDEC Stand’d Min Max Min Max Min Max Min Max Min Max
tAVAC
tELWL
tWLWH
tAVWL
tDVWH
tWHDX
tWLAX
tWHWL
tWC
tCE
60
0
70
0
90
0
120
0
150
0
ns
ns
ns
ns
ns
ns
ns
ns
Write Cycle Time
Chip Enable Setup Time
Write Enable Pulse Width
Address Setup Time
Data Setup Time
tWP
tAS
30
0
35
0
45
0
50
0
50
0
tDS
30
0
30
0
45
0
50
0
50
0
tDH
Data Hold Time
tAH
45
20
45
20
45
20
50
20
50
20
Address Hold Time
tWPH
Write Enable Pulse Width High
Duration of Byte Programming Operation
Typ = 16 µs
tWHWH1
14 TYP 14 TYP 14 TYP 14 TYP 14 TYP
µs
tWHWH2
60
60
60
60
60
Sec
µs
Sector Erase Time
tGHWL
0
0
0
0
0
Read Recovery Time before Write
Vcc Setup Time
tVCE
50
50
50
50
50
µs
12.5
120
12.5
120
12.5
120
12.5
120
12.5 Sec
Chip Programming Time
Chip Erase Time
tWHWH3
120
Sec
AC Characteristics – Write/Erase/Program Operations, CE Controlled
(Vcc = 5.0V, Vss = 0V, Tc = -55°C to +125°C)
Symbol
–60
–70
–90
–120
–150
Parameter
Units
JEDEC Stand’d Min Max Min Max Min Max Min Max Min Max
tAVAC
tWLEL
tELEH
tWC
tWS
tCP
60
0
70
0
90
0
120
0
150
0
ns
ns
ns
ns
ns
ns
ns
ns
µs
Sec
ns
Write Cycle Time
Write Enable Setup Time
Chip Enable Pulse Width
Address Setup Time
Data Setup Time
30
0
35
0
45
0
50
0
50
0
tAVEL
tAS
tDVEH
tEHDX
tELAX
tDS
30
0
30
0
45
0
50
0
50
0
tDH
tAH
tCPH
Data Hold Time
45
20
45
20
45
20
50
20
50
20
Address Hold Time
tEHEL
Chip Select Pulse Width High
Duration of Byte Programming
Sector Erase Time
tWHWH1
tWHWH2
14 TYP 14 TYP 14 TYP 14 TYP 14 TYP
60
60
60
60
60
tGHEL
0
0
0
0
0
Read Recovery Time
Chip Programming Time
Chip Erase Time
12.5
120
12.5
120
12.5
120
12.5
120
12.5 Sec
120 Sec
tWHWH3
4
Aeroflex Circuit Technology
SCD1676 REV A 5/6/98 Plainview NY (516) 694-6700
programming, the device will draw active current until the
operation is completed.
Device Operation
The ACT-F128K8 Monolithic module is composed of one,
1 megabit flash EEPROM.
WRITE
Programming of the ACT-F128K8 is accomplished by
Device erasure and programming are accomplished via
the command register. The contents of the register
serve as input to the internal state machine. The state
machine outputs dictate the function of the device.
executing the program command sequence.
The
program algorithm, which is an internal algorithm,
automatically times the program pulse widths and
verifies proper cell status. Sectors can be programed
and verified in less than 0.3 second.
Erase is
The command register itself does not occupy an
addressable memory location. The register is a latch
used to store the command, along with address and data
information needed to execute the command. The
command register is written by bringing WE to a logic
low level (VIL), while CE is low and OE is at VIH.
Addresses are latched on the falling edge of WE or CE,
whichever happens later. Data is latched on the rising
edge of the WE or CE whichever occurs first. Standard
microprocessor write timings are used. Refer to AC
Program Characteristics and Waveforms, Figures 3,
8 and 13.
accomplished by executing the erase command
sequence. The erase algorithm, which is internal,
automatically preprograms the array if it is not already
programed before executing the erase operation. During
erase, the device automatically times the erase pulse
widths and verifies proper cell status. The entire
memory is typically erased and verified in 3 seconds
(if pre-programmed). The sector mode allows for 16K
byte blocks of memory to be erased and reprogrammed
without affecting other blocks.
Bus Operation
Command Definitions
READ
The ACT-F128K8 has two control functions, both of
which must be logically active, to obtain data at the
outputs. Chip Enable (CE) is the power control and
should be used for device selection. Output-Enable (OE)
is the output control and should be used to gate data to
the output pins of the chip selected. Figure 7 illustrates
AC read timing waveforms.
Device operations are selected by writing specific
address and data sequences into the command register.
Table 3 defines these register command sequences.
READ/RESET COMMAND
The read or reset operation is initiated by writing the
read/reset command sequence into the command
register. Microprocessor read cycles retrieve array data
from the memory. The device remains enabled for reads
until the command register contents are altered.
OUTPUT DISABLE
With Output-Enable at a logic high level (VIH), output
from the device is disabled. Output pins are placed in a
high impedance state.
The device will automatically power-up in the read/reset
state. In this case, a command sequence is not required
to read data. Standard microprocessor read cycles will
retrieve array data.
The device will automatically
power-up in the read/reset state. In this case, a
command sequence is not required to read data.
Standard Microprocessor read cycles will retrieve array
data. This default value ensures that no spurious
alteration of the memory content occurs during the
power transition. Refer to the AC Read Characteristics
and Figure 7 for the specific timing parameters.
STANDBY MODE
The ACT-F128K8 has two standby modes, a CMOS
standby mode (CE input held at Vcc + 0.5V), where the
current consumed is typically less than 400 µA; and a
TTL standby mode (CE is held VIH) is approximately 1
mA. In the standby mode the outputs are in a high
impedance state, independent of the OE input.
If the device is deselected during erasure or
Table 1 – Bus Operations
Table 2 – Sector Addresses Table
Operation
READ
CE OE WE A0 A1 A9
I/O
A16 A15 A14
Address Range
00000h – 03FFFh
04000h – 07FFFh
08000h – 0BFFFh
0C000h – 0FFFFh
10000h – 13FFFh
14000h – 17FFFh
18000h – 1BFFFh
1C000h – 1FFFFh
L
H
L
L
X
H
H
H
X
H
L
A0 A1 A9 DOUT
SA0
SA1
SA2
SA3
SA4
SA5
SA6
SA7
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
X
X
X
X
X
X
HIGH Z
HIGH Z
DIN
STANDBY
OUTPUT DISABLE
WRITE
L
A0 A1 A9
ENABLE SECTOR
PROTECT
L
L
VID
L
L
X
L
X
H
VID
X
VERIFY SECTOR
PROTECT
H
VID Code
5
Aeroflex Circuit Technology
SCD1676 REV A 5/6/98 Plainview NY (516) 694-6700
Table 3 — Commands Definitions
Bus
Write
Fourth Bus
Read/Write
First Bus Write Second Bus Write Third Bus Write
Cycle Cycle Cycle
Fifth Bus Write Sixth Bus Write
Cycle Cycle
Command
Sequence
Cycle
Cycle
Req’d Addr
Data
AAH
AAH
AAH
AAH
Addr
Data
55H
55H
55H
55H
Addr
Data
F0H
A0H
80H
80H
Addr
Data
RD
Addr
Data
Addr
Data
Read/Reset
Byte Program
Chip Erase
Sector Erase
NOTES:
4
6
6
6
5555H
5555H
5555H
5555H
2AAAH
2AAAH
2AAAH
2AAAH
5555H
5555H
5555H
5555H
RA
PA
PD
5555H
5555H
AAH
AAH
2AAAH 55H
2AAAH 55H
5555H 10H
SA 30H
1. Address bit A15 = X = Don't Care. Write Sequences may be initiated with A15 in either state.
2. Address bit A16 = X = Don't Care for all address commands except for Program Address (PA) and Sector Address (SA).
3. RA = Address of the memory location to be read
PA = Address of the memory location to be programmed. Addresses are latched on the falling edge of the WE pulse.
SA = Address of the sector to be erased. The combination of A16, A15, A14 will uniquely select any sector.
4. RD = Data read from location RA during read Operation.
PD = Data to be programmed at location PA. Data is latched on the rising edge of WE.
device prior to erase. Upon executing the Embedded
Erase Algorithm command sequence (Figure 4) the
device will automatically program and verify the entire
memory for an all zero data pattem prior to electrical
erase. The erase is performed concurrently on all
sectors at the same time . The system is not required to
provide any controls or timings during these operations.
Note: Post Erase data state is all "1"s.
BYTE PROGRAMING
The device is programmed on a byte-byte basis.
Programming is a four bus cycle operation. There are
two "unlock" write cycles. These are followed by the
program set-up command and data write cycles.
Addresses are latched on the falling edge of CE or WE,
whichever occurs later, while the data is latched on the
rising edge of CE or WE whichever occurs first. The
rising edge of CE or WE (whichever happens first)
begins programming using the Embedded Program
The automatic erase begins on the rising edge of the last
WE pulse in the command sequence and terminates
when the data on D7 is "1" (see Write Operation Status
section - Table 3) at which time the device retums to read
mode. See Figures 4 and 9.
Algorithm.
Upon executing the program algorithm
command sequence the system is not required to
provide further controls or timings. The device will
automatically provide adequate internally generated
program pulses and verify the programmed cell.
SECTOR ERASE
The automatic programming operation is completed
when the data on D7 (also used as Data Polling) is
equivalent to data written to this bit at which time the
device returns to the read mode and addresses are no
longer latched. Therefore, the device requires that a
valid address be supplied by the system at this particular
instance of time for Data Polling operations. Data Polling
must be performed at the memory location which is
being programmed.
Sector erase is a six bus cycle operation. There are two
"unlock" write cycles. These are followed by writing the
"setup" command. Two more "unlock" write cycles are
then followed by the sector erase command. The sector
address (any address location within the desired sector)
is latched on the falling edge of WE, while the command
(30H) is latched on the rising edge of WE. After a
time-out of 80µs from the rising edge of the last sector
erase command, the sector erase operation will begin.
Any commands written to the chip during the Embedded
Program Algorithm will be ignored.
Multiple sectors may be erased concurrently by writing
the six bus cycle operations as described above. This
sequence is followed with writes of the sector erase
command to addresses in other sectors desired to be
concurrently erased. The time between writes must be
less than 80µs otherwise that command will not be
accepted and erasure will start. It is recommended that
processor interrupts be disabled during this time to
Programming is allowed in any sequence and across
sector boundaries. Beware that a data "0" cannot be
programmed back to a “1". Attempting to do so may
cause the device to exceed programming time limits (D5
= 1) or result in an apparent success, according to the
data polling algorithm, but a read from reset/read mode
will show that the data is still “0". Only erase operations
can convert “0"s to “1"s.
guarantee this condition.
The interrupts can be
re-enabled after the last Sector Erase command is
written. A time-out of 80µs from the rising edge of the
last WE will initiate the execution of the Sector Erase
command(s). If another falling edge of the WE occurs
within the 80µs time-out window the timer is reset.
(Monitor D3 to determine if the sector erase timer
window is still open, see section D3, Sector Erase
Timer.) Any commarid other than Sector Erase during
this period will reset the device to read mode, ignoring
the previous command string. In that case, restart the
erase on those sectors and allow them to complete.
Figure 3 illustrates the programming algorithm using
typical command strings and bus operations.
CHIP ERASE
Chip erase is a six bus cycle operation. There are two
'unlock' write cycles. These are followed by writing the
“set-up” command. Two more “unlock” write cycles are
then followed by the chip erase command.
Chip erase does not require the user to program the
6
Aeroflex Circuit Technology
SCD1676 REV A 5/6/98 Plainview NY (516) 694-6700
Loading the sector erase buffer may be done in any
sequence and with any number of sectors (0 to 7).
POWER-UP WRITE INHIBIT
Power-up of the device with WE = CE = VIL and OE =
VIH will not accept commands on the rising edge of WE.
The internal state machine is automatically reset to the
read mode on power-up.
Sector erase does not require the user to program the
device prior to erase.
The device automatically
programs all memory locations in the sector(s) to be
erased prior to electrical erase. When erasing a sector
or sectors the remaining unselected sectors are not
affected. The system is not required to provide any
controls or timings during these operations. Post Erase
data state is all "1"s.
Write Operation Status
D7
DATA POLLING
The ACT-F128K8 features Data Polling as a method to
indicate to the host that the internal algorithms are in
progress or completed.
The automatic sector erase begins after the 80µs time
out from the rising edge of the WE pulse for the last
sector erase command pulse and terminates when the
data on D7, Data Polling, is “1" (see Write Operatlon
Status secton) at which time the device returns to read
mode. Data Polling must be performed at an address
within any of the sectors being erased.
During the program algorithm, an attempt to read the
device will produce compliment data of the data last
written to D7. Upon completion of the programming
algorithm an attempt to read the device will produce the
true data last written to D7. Data Polling is valid after the
rising edge of the fourth WE pulse in the four write pulse
sequence.
Figure 4 illustrates the Embedded Erase Algorithm.
Data Protection
The ACT-F128K8 is designed to offer protection against
accidental erasure or programming caused by spurious
system level singles that may exist during power
transitions. During power up the device automatically
resets the internal state machine in the read mode. Also,
with its control register architecture, alteration of the
memory content only occurs after successful completion
of specific multi-bus cycle command sequences.
During the erase algorithm, D7 will be "0" until the erase
operation is completed. Upon completion data at D7 is
"1". For chip erase, the Data Polling is valid after the
rising edge of the sixth WE pulse in the six write pulse
sequence. For sector erase, the Data Polling is Valid
after the last rising edge of the sector erase WE pulse.
The Data Polling feature is only active during the
programming algorithm, erase algorithm, or sector erase
time-out.
The device also incorporates several features to prevent
inadvertent write cycles resulting from Vcc power-up and
power-down transitions or system noise.
See Figures 6 and 10 for the Data Polling specifications.
LOW Vcc WRITE INHIBIT
D6
To avoid initiation of a write cycle during Vcc power-up
and power-down, a write cycle is locked out for VCC less
than 3.2V (typically 3.7V). If VCC < VLKO, the command
register is disabled and all internal program/erase
circuits are disabled. Under this condition the device will
reset to read mode. Subsequent writes will be ignored
until the Vcc level is greater than VLKO. It is the users
responsibility to ensure that the control pins are logically
correct to prevent unintentional writes when Vcc is above
3.2V.
TOGGLE BIT
The ACT-F128K8 also features the "Toggle Bit" as a
method to indicate to the host system that algorithms are
in progress or completed.
During a program or erase algorithm cycle, successive
attempts to read data from the device will result in D6
toggling between one and zero. Once the program or
erase algorithm cycle is completed, D6 Will stop toggling
and valid data will be read on successive attempts.
During programming the Toggle Bit is valid after the
rising edge of the fourth WE pulse in the four write pulse
sequence. For chip erase the Toggle Bit is valid after the
rising edge of the sixth WE pulse in the six write pulse
sequence. For Sector erase, the Toggle Bit is valid after
the last rising edge of the sector erase WE pulse. The
Toggle Bit is active during the sector time out.
WRITE PULSE GLITCH PROTECTION
Noise pulses of less than 5ns (typical) on OE, CE or WE
will not initiate a write cycle.
See Figure 1 and 5.
LOGICAL INHIBIT
Writing is inhibited by holding anyone of OE = VIL, CE =
VIH or WE = VIH. To initiate a write cycle CE and WE
must be logical zero while OE is a logical one.
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Aeroflex Circuit Technology
SCD1676 REV A 5/6/98 Plainview NY (516) 694-6700
Table 4 — Hardware Sequence Flags
Status
D7
D6
D5 D4 D3
D2 – D0
D7 Toggle
0
0
0
1
1
1
0
0
1
0
0
1
0
1
1
0
1
1
Auto-Programming
Programming in Auto Erase
Erase in Auto Erase
Auto-Programming
Programming in Auto Erase
Erase in Auto Erase
In Progress
Reserved for
future use
0
0
Toggle
Toggle
D7 Toggle
T0 Toggle
Reserved for
future use
Exceeding Time Limits
0
Toggle
D5
EXCEEDED TIMING LIMITS
Sector Protection
Algorithims
D5 will indicate if the program or erase time has
exceeded the specified limits. Under these conditions
D5 will produce a "1". The Program or erase cycle was
not successfully completed. Data Polling is the only
operation function of the device under this condition.
The CE circuit will partially power down the device under
these conditions by approximately 8 mA per chip. The
OE and WE pins will control the output disable functions
as shown in Table 1. To reset the device, write the reset
command sequence to the device. This allows the
system to continue to use the other active sectors in the
device.
SECTOR PROTECTION
The ACT-F128K8 features hardware sector protection
which will disable both program and erase operations to
an individual sector or any group of sectors. To activate
this mode, the programming equipment must force VID
on control pin OE and address pin A9. The sector
addresses should be set using higher address lines A16,
A15, and A14. The protection mechanism begins on the
falling edge of the WE pulse and is terminated with the
rising edge of the same.
It is also possible to verify if a sector is protected during
the sector protection operation. This is done by setting
CE = OE = VIL and WE = VIH (A9 remains high at VID).
Reading the device at address location XXX2H, where
the higher order addresses (A16, A15 and A14) define a
particular sector, will produce 01H at data outputs D0 -
D7, for a protected sector.
D4 - HARDWARE SEQUENCE FLAG
If the device has exceeded the specified erase or
program time and D5 is "1", then D4 Will indicate which
step in the algorithm the device exceeded the limits. A
"0" in D4 indicates in programming, a "1" indicates an
erase. (See Table 4)
D3
SECTOR UNPROTECT
SECTOR ERASE TIMER
The ACT-F128K8 also features a sector unprotect mode,
so that a protected sector may be unprotected to
incorporate any changes in the code. All sectors should
be protected prior to unprotecting any sector.
After the completion of the initial sector erase command
sequence the sector erase time-out will begin. D3 will
remain low until the time-out is complete. Data Polling
and Toggle Bit are valid after the initial sector erase
command sequence.
To activate this mode, the programming equipment must
force VID on control pins OE, CE, and address pin A9.
The address pins A6, A7, and A12 should be set to VIH,
and A6 = VIL. The unprotection mechanism begins on
the falling edge of the WE pulse and is terminated with
the rising edge of the same.
If Data Polling or the Toggle Bit indicates the device has
been written with a valid erase command, D3 may be
used to determine if the sector erase timer window is still
open. If D3 is high ("1") the internally controlled erase
cycle has begun; attempts to write subsequent
commands to the device will be ignored until the erase
operation is completed as indicated by Data Polling or
Toggle Bit. If D3 is low ("0"), the device will accept
additional sector erase commands. To ensure the
command has been accepted, the software should check
the status of D3 prior to and following each subsequent
sector erase command. If D3 were high on the second
status check, the command may not have been
accepted.
It is also possible to determine if a sector is unprotected
in the system by writing the autoselect command.
Performing a read operation at address location XXX2H,
where the higher order addresses (A16, A15, and A14)
define a particular sector address, will produce 00H at
data outputs (D0-D7) for an unprotected sector.
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Aeroflex Circuit Technology
SCD1676 REV A 5/6/98 Plainview NY (516) 694-6700
Figure 1
AC Waveforms for Toggle Bit During Embedded Algorithm Operations
CE
tOEH
WE
tOES
OE
Data
D0-D7
D6
D0-D7
Valid
D6=Toggle
D6=Toggle
Stop Toggle
tOE
Figure 2
AC Test Circuit
Current Source
IOL
Parameter
Typical
Units
V
Input Pulse Level
0 – 3.0
5
Input Rise and Fall
ns
Input and Output Timing Reference
Output Lead Capacitance
1.5
V
VZ ~ 1.5 V (Bipolar Supply)
To Device Under Test
50
pF
CL =
50 pF
IOH
Current Source
Notes:
1) VZ is programmable from -2V to +7V. 2) IOL and IOH programmable from 0 to 16 mA. 3) Tester Impedance
ZO = 75Ω. 4) VZ is typically the midpoint of VOH and VOL. 5) IOL and IOH are adjusted to simulate a typical
resistance load circuit. 6) ATE Tester includes jig capacitance.
9
Aeroflex Circuit Technology
SCD1676 REV A 5/6/98 Plainview NY (516) 694-6700
Figure 3
Programming Algorithm
Bus
Operations
Command
Sequence
Comments
Standby
Write
Program
Valid Address/Data Sequence
Read
Data Polling to Verify Programming
Compare Data Output to Data Expected
Standby
Start
Write Program Command Sequence
(See Below)
Data Poll Device
No
Increment
Address
Last Address
?
Yes
Programming Complete
Program Command Sequence (Address/Command):
5555H/AAH
2AAAH/55H
5555H/A0H
Programming Address/Program Data
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Aeroflex Circuit Technology
SCD1676 REV A 5/6/98 Plainview NY (516) 694-6700
Figure 4
Erase Algorithm
Bus
Operations
Command
Sequence
Comments
Standby
Write
Erase
Read
Data Polling to Verify Erasure
Compare Output to FFH
Standby
Start
Write Erase Command Sequence
(See Below)
Data Poll or Toggle Bit
Successfully Completed
Erasure Completed
Chip Erase Command Sequence
Individual Sector/Multiple Sector
Erase Command Sequence
(Address/Command)
(Address/Command)
5555H/AAH
5555H/AAH
2AAAH/55H
5555H/80H
5555H/AAH
2AAAH/55H
5555H/10H
2AAAH/55H
5555H/80H
5555H/AAH
2AAAH/55H
Sector Address/30H
Sector Address/30H
Sector Address/30H
Additional Sector
Erase Commands
are Optional
Note 1. To Ensure the command has been accepted, the system software should check the
status of D3 prior to and following each subsequent sector erase command. If D3 were high on
the second status check, the command may not have been accepted.
11
Aeroflex Circuit Technology
SCD1676 REV A 5/6/98 Plainview NY (516) 694-6700
Figure 5
Figure 6
Toggle Bit Algorithm
Data Polling Algorithm
Start
Start
VA = Byte Address for Programming
VA = Byte Address for Programming
= Any of the Sector Addresses
within the sector being erased
during sector erase operation
= Any of the Sector Addresses
within the sector being erased
during sector erase operation
Read Byte
D0-D7
Address = VA
Read Byte
D0-D7
Address = VA
= XXXXH during Chip Erase
= XXXXH during Chip Erase
Yes
No
D7 = Data
?
D6 = Toggle
?
No
Yes
No
No
D5 = 1
?
D5 = 1
?
Yes
Yes
Read Byte
D0-D7
Address = VA
Read Byte
D0-D7
Address = VA
D6 =
Toggle?
(Note 1)
D7 =
Toggle?
(Note 1)
Yes
No
Pass
Pass
No
Yes
Fail
Fail
Note 1. D6 is rechecked even if D5 = "1" because D6 may stop toggling at
the same time as D5 changes to "1".
Note 1. D7 is rechecked even if D5 = "1" because D7 may change
simultaneously with D5.
12
Aeroflex Circuit Technology
SCD1676 REV A 5/6/98 Plainview NY (516) 694-6700
Figure 7
AC Waveforms for Read Operations
tRC
Addresses
CE
Addresses Stable
tACC
tDF
OE
tOE
WE
tCE
tOH
High Z
High Z
Outputs
Output Valid
Figure 8
Write/Erase/Program
Operation, WE Controlled
Data Polling
Addresses
5555H
PA
PA
tRC
tWC
tAH
tAS
CE
OE
tGHWL
tWP
tWHWH1
tWPH
WE
tCE
tDF
tOE
tDH
AOH
PD
D7
DOUT
Data
5.0V
tDS
tOH
tCE
Notes:
1. PA is the address of the memory location to be programmed.
2. PD is the data to be programmed at byte address.
3. D7 is the 0utput of the complement of the data written to the deviced.
4. Dout is the output of the data written to the device.
5. Figure indicates last two bus cycles of four bus cycle sequence.
13
Aeroflex Circuit Technology
SCD1676 REV A 5/6/98 Plainview NY (516) 694-6700
Figure 9
AC Waveforms Chip/Sector
Erase Operations
Data Polling
5555H
tAH
5555H
2AAAH
5555H
2AAAH
SA
Addresses
tAS
CE
OE
WE
tGHWL
tWP
tWPH
tDH
tCE
AAH
55H
80H
AAH
55H
10H/30H
Data
VCC
tDS
tVCE
Notes:
1. SA is the sector address for sector erase.
Figure 10
AC Waveforms for Data Polling
During Embedded Algorithm Operations
tCH
CE
tDF
tOE
OE
tOEH
tCE
WE
tOH
*
High Z
D7=
D7
D7
Valid Data
tWHWH1 or 2
D0–D6
Valid Data
D0-D6
D0–D6=Invalid
tOE
* D7=Valid Data (The device has completed the Embedded operation).
14
Aeroflex Circuit Technology
SCD1676 REV A 5/6/98 Plainview NY (516) 694-6700
Figure 11
Sector Protection Algorithm
Start
Set Up Sector Address
(A16, A15, A14)
PLSCNT = 1
OE = VID
A9 = VID, CE = VIL
Activate WE Pulse
Time Out 100µs
Increment
PLSCNT
Power Down OE
WE = VIH
CE = OE = VIH
A9 Should Remain VID
Read From Sector
Address = SA, A0 = 0, A1 = 1, A6 = 0
No
No
Data = 01H
PLSCNT = 25
?
?
Yes
Yes
Device Failure
Protect
Yes
Another
Sector?
No
Remove VID from A9
Write Reset Command
Sector Protection
Complete
15
Aeroflex Circuit Technology
SCD1676 REV A 5/6/98 Plainview NY (516) 694-6700
Figure 12
Sector Unprotect Algorithm
Start
Set VCC = 5.0 V
Protect All Sectors
PLSCNT = 1
Set Up Sector Address
Unprotected Mode
(A12 = A7 = VIH, A6 = VIL)
Set VCC = 5.0 V
Set
OE = CE = A9 = VID
Activate WE Pulse
Time Out 10ms
Increment
PLSCNT
Set OE = CE = VIL
Remove VID from A9
Set VCC = 4.25 V
Write Autoselect
Command Sequence
Setup Sector Address SA0
Set A1 = 1, A0 = 0
Read Data
From Device
No
Increment
No
Write Reset
Command
Data = 00H
?
PLSCNT = 1000
?
Sector Address
Yes
Yes
Device Failure
Sector
No
Address = SA7
?
Yes
Set VCC = 5.0 V
Notes:
SA0 = Sector Address for initial sector
SA7 = Sector Address for last sector
Please refer to Table 2
Write Reset Command
Sector Unprotect
Completed
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Aeroflex Circuit Technology
SCD1676 REV A 5/6/98 Plainview NY (516) 694-6700
Figure 13
Write/Erase/Program Operation, CE Controlled
Data Polling
5555H
PA
PA
Addresses
tWC
tAS
tAH
WE
OE
tGHEL
tCP
tWHWH1
CE
tCPH
tDH
tWS
AOH
PD
D7
DOUT
Data
5.0V
tDS
Notes:
1. PA is the address of the memory location to be programmed.
2. PD is the data to be programmed at byte address.
3. D7 is the 0utput of the complement of the data written to the device.
4. DOUT is the output of the data written to the device.
5. Figure indicates last two bus cycles of four bus cycle sequence.
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Aeroflex Circuit Technology
SCD1676 REV A 5/6/98 Plainview NY (516) 694-6700
Pin Numbers & Functions
32 Pins — DIP Package
1
2
NC
A16
A15
A12
A7
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
I/O3
I/O4
I/O5
I/O6
I/O7
CE
3
4
5\
6
A6
7
A5
A10
OE
A11
A9
8
A4
9
A3
10
11
12
13
14
15
16
A2
A1
A8
A0
A13
A14
NC
WE
VCC
I/O0
I/O1
I/O2
VSS
Package Outline "P4" — .590" x 1.67" DIP Package
1.623
MAX
Pin 32
.165
Pin 1
MAX
.604
MAX
Pin 1
Identifier
.012
.009
.060
.040
TYP
.020
.016
TYP
.100
TYP
.055
.045
.125
MIN
.610
.590
All dimensions in inches
18
Aeroflex Circuit Technology
SCD1676 REV A 5/6/98 Plainview NY (516) 694-6700
Pin Numbers & Functions
32 Pins — Flat Package
1
2
NC
A16
A15
A12
A7
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
I/O3
I/O4
I/O5
I/O6
I/O7
CE
3
4
5
6
A6
7
A5
A10
OE
A11
A9
8
A4
9
A3
10
11
12
13
14
15
16
A2
A1
A8
A0
A13
A14
NC
WE
VCC
I/O0
I/O1
I/O2
VSS
Package Outline "F6" — 32 Lead, Ceramic Flat Package
.830
MAX
Pin 32
Pin 17
.125 MAX
.415
MAX
Pin 16
Pin 1
.400
MIN
+.002
.005
-.001
.017
±.002
.750
(15 spaces at .050)
2 sides
All dimensions in inches
19
Aeroflex Circuit Technology
SCD1676 REV A 5/6/98 Plainview NY (516) 694-6700
Pin Numbers & Functions
32 Pins — Flat Package
1
2
NC
A16
A15
A12
A7
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
I/O3
I/O4
I/O5
I/O6
I/O7
CE
3
4
5
6
A6
7
A5
A10
OE
A11
A9
8
A4
9
A3
10
11
12
13
14
15
16
A2
A1
A8
A0
A13
A14
NC
WE
VCC
I/O0
I/O1
I/O2
VSS
Package Outline "F7" — 32 Lead, Ceramic Flat Package
.132
Base Plane
MAX
.006
TYP
.830
.125
MAX
MAX
Pin 17
Pin 32
.415
.530
±.005
MAX
.068
TYP
.025
TYP
Pin 16
Pin 1
.030
TYP
0° / -4°
.017
±.002
+.002
.005
-.001
.750
(15 spaces at .050)
2 sides
Seating Plane
All dimensions in inches
20
Aeroflex Circuit Technology
SCD1676 REV A 5/6/98 Plainview NY (516) 694-6700
C I R C U I T T E C H N O L O G Y
Ordering Information
Model Number
DESC Drawing Number
5962-9669001HTC*
5962-9669002HTC*
5962-9669003HTC*
5962-9669004HTC*
5962-9669005HTC*
5962-9669001HUC*
5962-9669002HUC*
5962-9669003HUC*
5962-9669004HUC*
5962-9669005HUC*
5962-9669001HYC*
5962-9669002HYC*
5962-9669003HYC*
5962-9669004HYC*
5962-9669005HYC*
Speed
150 ns
120 ns
90 ns
Package
Flat Pack
ACT–F128K8N–150F6Q
ACT–F128K8N–120F6Q
ACT–F128K8N–090F6Q
ACT–F128K8N–070F6Q
ACT–F128K8N–060F6Q
ACT–F128K8N–150F7Q
ACT–F128K8N–120F7Q
ACT–F128K8N–090F7Q
ACT–F128K8N–070F7Q
ACT–F128K8N–060F7Q
ACT–F128K8N–150P4Q
ACT–F128K8N–120P4Q
ACT–F128K8N–090P4Q
ACT–F128K8N–070P4Q
ACT–F128K8N–060P4Q
* Pending
Flat Pack
Flat Pack
70 ns
Flat Pack
60 ns
Flat Pack
150 ns
120 ns
90 ns
Flat Pack (Formed)
Flat Pack (Formed)
Flat Pack (Formed)
Flat Pack (Formed)
Flat Pack (Formed)
DIP Pack
70 ns
60 ns
150 ns
120 ns
90 ns
DIP Pack
DIP Pack
70 ns
DIP Pack
60 ns
DIP Pack
Part Number Breakdown
ACT– F 128 8 N– 090 F6 Q
Aeroflex Circuit
Technology
Memory Type
Screening
F = FLASH EEPROM
C = Commercial Temp, 0°C to +70°C
I = Industrial Temp, -40°C to +85°C
T = Military Temp, -55°C to +125°C
Memory Depth
M = Military Temp, -55°C to +125°C, Screening *
Q = MIL-PRF-38534 Compliant / SMD
Memory Width, Bits
Package Type & Size
Options
Surface Mount Packages
F6 = .82" x .40" 32 Lead FP Unformed
F7 = .82" x .40" 32 Lead FP Formed
Thru-Hole Packages
P4 = 32 Pin DIP
N = None
Memory Speed, ns
*
Screened to the individual test methods of MIL-STD-883
Specifications subject to change without notice.
Telephone: (516) 694-6700
Aeroflex Circuit Technology
35 South Service Road
Plainview New York 11830
Aeroflex Circuit Technology
FAX:
(516) 694-6715
Toll Free Inquiries: 1-(800) 843-1553
21
SCD1676 REV A 5/6/98 Plainview NY (516) 694-6700
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