EEPROM
AS8E128K32
Austin Semiconductor, Inc.
128K x 32 EEPROM
PIN ASSIGNMENT
(Top View)
EEPROM Memory Array
66 Lead PGA
AVAILABLE AS MILITARY
SPECIFICATIONS
•
•
(Pins 8, 21, 28, 39 are no connects on the PN package)
SMD 5962-94585
MIL-STD-883
FEATURES
OPTIONS
•
•
66 Lead PGA
(Pins 8, 21, 28, 39 are grounds on the P package)
MARKINGS
Timing
120 ns
140 ns
150 ns
200 ns
250 ns
300 ns
Package
Ceramic Quad Flat pack
Pin Grid Array- 8 Series
Pin Grid Array- 8 Series
-120
-140
-150
-200
-250
-300
Q
P
PN
68 Lead CQFP
No. 703
No. 904
No. 904
4
•
•
•
•
Access times of 120, 140, 150, 200, 250, and 300 ns
Built in decoupling caps for low noise operation
Organized as 128K x32; User configurable
as 256K x16 or 512K x8
Operation with single 5 volt supply
Low power CMOS
TTL Compatible Inputs and Outputs
Operating Temperature Ranges:
Military: -55oC to +125oC
Industrial: -40oC to +85oC
3
•
•
•
GENERAL DESCRIPTION
The Austin Semiconductor, Inc. AS8E128K32 is a 4 Megabit
EEPROM Module organized as 128K x 32 bit. User configurable to
256K x16 or 512Kx 8. The module achieves high speed access, low
power consumption and high reliability by employing advanced CMOS
memory technology.
The military grade product is manufactured in compliance to the
SMD and MIL-STD 883, making the AS8E128K32 ideally suited for
military or space applications.
The module is offered in a 1.075 inch square ceramic pin grid
array substrate. This package design provides the optimum space
saving solution for boards that accept through hole packaging.
The module is also offered as a 68 lead 0.990 inch square ceramic
quad flat pack. It has a max. height of 0.200 inch. This package design
is targeted for those applications which require low profile SMT
Packaging.
For more products and information
please visit our web site at
www.austinsemiconductor.com
AS8E128K32
Rev. 5.5 9/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
1
EEPROM
Austin Semiconductor, Inc.
AS8E128K32
of the last byte written will result in the complement of the written
data to be presented on I/O7. Once the write cycle has been completed, true data is valid on all outputs, and the next write cycle may
begin. DATA Polling may begin at anytime during the write cycle.
DEVICE IDENTIFICATION
An extra 128 bytes of EEPROM memory is available on each
die for user identification. By raising A9 to 12V + 0.5V and using
address locations 1FF80H to 1FFFFH the bytes may be written to
or read from in the same manner as the regular memory array.
TOGGLE BIT
In addition to DATA Polling the module provides another method
for determining the end of a write cycle. During the write operation,
successive attempts to read data from the device will result in I/O6 of
the accessed die toggling between one and zero. Once the write has
completed, I/O6 will stop toggling and valid data will be read. Reading
the toggle bit may begin at any time during the write cycle.
DEVICE OPERATION
The 128K x 32 EEPROM memory solution is an electrically
erasable and programmable memory module that is accessed like a
Static RAM for the read or write cycle without the need for external
components. The device contains a 128-byte-page register to allow
writing of up to 128 bytes of data simultaneously. During a write
cycle, the address and 1 to 128 bytes of data are internally latched,
freeing the address and data bus for other operations. Following the
initiation of a write cycle, the device will automatically write the
latched data using an internal control timer. The end of a write cycle
can be detected by DATA polling of I/O7. Once the end of a write
cycle has been detected a new access for a read or write can begin.
DATA PROTECTION
If precautions are not taken, inadvertent writes may occur during
transitions of the host power supply. The E2 module has incorporated both hardware and software features that will protect the memory
against inadvertent writes.
READ
HARDWARE PROTECTION
The memory module is accessed like a Static RAM. When CE\
and OE\ are low and WE\ is High, the data stored at the memory
location determined by the address pins is asserted on the outputs.
The module can be read as a 32 bit, 16 bit or 8 bit device. The outputs
are put in the high impedance state when either CE\ or OE\ is high.
This dual-line control gives designers flexibility in preventing bus
contention in their system.
Hardware features protect against inadvertent writes to the module in the following ways: (a) Vcc sense - if Vcc is below 3.8 V
(typical) the write function is inhibited; (b) Vcc power-on delay once Vcc has reached 3.8 V the device will automatically time out 5 ms
(typical) before allowing a write; (c) write inhibit - holding any one of
OE\ low, CE\ high or WE\ high inhibits write cycles; (d) noise filter pulses of less than 15 ns (typical) on the WE\ or CE\ inputs will not
initiate a write cycle.
BYTE WRITE
A low pulse on the WE\ or CE\ input with CE\ or WE\ low
(respectively) and OE\ high initiates a write cycle. The address is
latched on the falling edge of CE\ or WE\, whichever occurs last. The
data is latched by the first rising edge of CE\ or WE\. Once a BWDW
(byte, word or double word) write has been started it will automatically time itself to completion.
SOFTWARE DATA PROTECTION
A software controlled data protection feature has been implemented on the memory module. When enabled, the software data
protection (SDP), will prevent inadvertent writes. The SDP feature
may be enabled or disabled by the user and is shipped with SDP
disabled, SDP is enabled by the host system issuing a series of three
write commands; three specific bytes of data are written to three
specific addresses (refer to Software Data Protection Algorithm). After
writing the three byte command sequence and after tWC the entire
module will be protected from inadvertent write operations. It should
be noted, that once protected the host may still perform a byte of page
write to the module. This is done by preceding the data to be written
by the same three byte command sequence used to enable SDP. Once
set, SDP will remain active unless the disable command sequence is
issued. Power transitions do not disable SDP and SDP will protect
the 128K x 32 EEPROM during power-up and Power-down conditions. All command sequences must conform to the page write timing
specifications. The data in the enable and disable command sequences
is not written to the device and the memory addresses used in the
sequence may be written with data in either a byte or page write
operation.
After setting SDP, any attempt to write to the device without the
three byte command sequence will start the internal write timers. No
data will be written to the device; however, for the duration of tWC,
read operations will effectively be polling operations.
PAGE WRITE
The page write operation of the 128K x 32 EEPROM allows 1 to
128 BWDWs of data to be written into the device during a single
internal programming period. Each new BWDW must be written
within 150-µ sec (tBLC) of the previous BWDW. If the tBLC limit is
exceeded the memory module will cease accepting data and commence
the internal programming operation. For each WE high to low transition during the page write operation, A7-A16 must be the same.
The A0-A6 inputs are used to specify which bytes within the
page are to be written. The bytes may be loaded in any order and may
be altered within the same load period. Only bytes which are specified for writing will be written; unnecessary cycling of other bytes
within the page does not occur.
DATA POLLING
This memory module features DATA Polling to indicate the end
of a write cycle. During a byte or page write cycle an attempted read
AS8E128K32
Rev. 5.5 9/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
2
EEPROM
AS8E128K32
Austin Semiconductor, Inc.
ABSOLUTE MAXIMUM RATINGS*
Voltage on Vcc Supply Relative to Vss
Vcc ..............................................................................-.5V to +7.0V
Storage Temperature ....................... ....................-65°C to +150°C
Short Circuit Output Current (per I/O)….............................20mA
Voltage on any Pin Relative to Vss.....................-.5V to Vcc+1 V
Max Junction Temperature**.............................................+150°C
Thermal Resistance junction to case (θJC):
Package Type Q...............................................11.3° C/W
Package Type P & PN.......................................2.8° C/W
*Stresses greater than those listed under "Absolute Maximum
Ratings" may cause permanent damage to the device. This is
a stress rating only and functional operation of the device at
these or any other conditions above those indicated in the
operation section of this specification is not implied. Exposure
to absolute maximum rating conditions for extended periods
may affect reliability.
**Junction temperature depends upon package type, cycle time,
loading, ambient temperature and airflow, and humidity (plastics).
ELECTRICAL CHARACTERISTICS AND RECOMMENDED DC OPERATING CONDITIONS
(-55oC<TA<125oC or -40oC to +85oC; Vcc = 5V + 10%)
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Rev. 5.5 9/01
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Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
3
EEPROM
AS8E128K32
Austin Semiconductor, Inc.
CAPACITANCE TABLE1 (VIN = 0V, f = 1 MHz, TA = 25oC)
SYMBOL
CADD
PARAMETER
A0 - A16 Capacitance
MAX
40
UNITS
pF
COE
OE\ Capacitance
40
pF
CWE, CCE
WE\ and CE\ Capacitance
10
pF
CIO
I/O 0- I/O 31 Capacitance
12
pF
NOTE: 1. This parameter is guaranteed but not tested.
TRUTH TABLE
MODE
Read
CE
VIL
OE
VIL
WE
VIH
I/O
DOUT
Write (2)
VIL
VIH
VIL
DIN
Standby/Write
VIH
X (1)
X
VIH
High Z
Write Inhibit
X
Write Inhibit
X
X
VIL
Output Disable
X
VIH
X
X
High Z
NOTES: 1. X can be VIL or VIH
2. Refer to AC Programming Waveforms
AC TEST CONDITIONS
IOL
Current Source
TEST SPECIFICATIONS
Device
Under
Test
Input pulse levels...........................................V SS to 3V
Input rise and fall times...........................................5ns
Input timing reference levels.................................1.5V
Output reference levels.........................................1.5V
Output load................................................See Figure 1
+
Vz = 1.5V
(Bipolar
Supply)
Ceff = 50pf
Current Source
IOH
Figure 1
NOTES:
Vz is programmable from -2V to + 7V.
IOL and IOH programmable from 0 to 16 mA.
Vz is typically the midpoint of VOH and VOL.
IOL and IOH are adjusted to simulate a typical resistive load
circuit.
AS8E128K32
Rev. 5.5 9/01
+
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
4
EEPROM
AS8E128K32
Austin Semiconductor, Inc.
ELECTRICAL CHARACTERISTICS AND RECOMMENDED AC OPERATING CONDITIONS
(-55oC < TA < +125oC or -40oC to +85oC; Vcc = 5V +10%)
DESCRIPTION
SYMBOL MIN
CE\ to Output Delay
tACC
tCE
OE\ to Output Delay
tOE
CE\ or OE\ to Output Float
tDF
Output Hold from OE\, CE\ or Address,
whichever comes first
tOH
Address to Output Delay
120
MAX
140
MIN MAX
MIN
150
MAX
MIN
200
MAX
MIN
250
MAX
MIN
300
MAX UNITS
120
140
150
200
250
300
ns
120
140
150
200
250
300
ns
55
ns
55
ns
0
50
0
55
0
55
0
55
55
0
55
0
0
55
0
55
0
55
0
55
0
0
ns
AC READ WAVEFORMS(1,2,3)
tRC
ADDRESS
ADDRESS VALID
tCE
tCE
tDF
tDF
CE/
tOE
tOE
tOH
tOH
OE\
ttACC
ACC
DQ
OUTPUT VALID
NOTES:
1. CE\ may be delayed to tACC-tCE after the address transition without impact on tACC.
2. OE\ may be delayed to tCE-tOE after the falling edge of CE\ without impact on tCE or by tACC-tOE after an address change
without inpact on tACC.
3. tDF is specified from OE\ or CE\ whichever occurs first (CL = 5pF).
AS8E128K32
Rev. 5.5 9/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
5
EEPROM
AS8E128K32
Austin Semiconductor, Inc.
ELECTRICAL CHARACTERISTICS AND RECOMMENDED AC WRITE CHARACTERISTICS
(-55oC < TA < +125oC; Vcc = 5V +10%)
Symbol
Parameter
Min
tWC
Write Cyce Time
tAS
Address Set-up Time
tAH
Max
Units
10
ms
4
ns
Address Hold Time
50
ns
tDS
Data Set-up Time
50
ns
tDH
Data Hold Time
10
ns
tWP
Write Pulse Width
tBLC
Byte Load Cycle Time
tWPH
Write Pulse Width High
tOES
tOES
100
ns
150
50
µs
ns
WRITE CYCLE NO 1.
(Chip Enable Controlled)
t
OEH
tOEH
OE\
t
WC
tWC
t
ttAS
AS
ADDRESS
AH
tAH
ADDRESS VALID
tCH
tCH
ttCS
CS
WE\
t
t
WP
tWP
WPH
tWPH
CE\
t
DS
tDS
t
DH
tDH
DQ
DATA VALID
tOES
tOES
WRITE CYCLE NO 2.
(Write Enable Controlled)
tOEH
tOEH
OE\
ttAS
AS
ttAH
AH
ADDRESS
ttCS
CS
tCH
tCH
CE\
tWPH
tWPH
ttWP
WP
WE\
tDS
tDS
DQ
AS8E128K32
Rev. 5.5 9/01
ttDH
DH
DATA VALID
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
6
EEPROM
AS8E128K32
Austin Semiconductor, Inc.
PAGE MODE CHARACTERISTICS
Symbol
Parameter
Min
Max
Unit
tAS, tOES
Address, OE\ Set-Up time
4
ns
tAH
Address, Hold time
50
ns
tCS
Chip Select Set-up Time
0
ns
tCH
Chip Select Hold Time
0
ns
tWP
Write Pulse Width (WE\ or CE\)
100
ns
tDS
Data Set-up Time
50
ns
tDH, tOEH
Data, OE\ Hold Time
10
ns
PAGE MODE WRITE WAVEFORMS(1,2)
OE
CE\
tWP
tWP
ttWPH
WPH
tBLC
tBLC
WE\
ttAS
AS
A0 - A16
tAH
tAH
VA
VA
VA
NOTES: 1.
2.
3.
4.
VA
VA
VA
tDH
tDH
ttDS
DS
DATA
VA
ttWC
WC
VD
VD
VD
VD
BYTE 0
BYTE 1
BYTE 2
BYTE 3
VD
VD
BYTE 126
VD
VD
BYTE127
A7 through A16 must specify the page address during each high to low transition of WE\ (or CE\).
OE\ must be high only when WE\ and CE\ are both low.
VD - Valid Data
VA - Valid Address
CHIP ERASE WAVEFORMS
VIH
CE\
VIL
VH
OE\
VIH
VIH
t = 5 msec (min.)
S
t
W
= tH = 10 msec (min.)
VH = 12.0V + 0.5V
AS8E128K32
Rev. 5.5 9/01
t
t
H
S
WE\
VIL
t
W
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
7
EEPROM
AS8E128K32
Austin Semiconductor, Inc.
Software Data Protection Disable
Algorithm(1)
Software Data Protection Enable
Algorithm(1)
Load Data AA
to
Address 5555
Load Data AA
to
Address 5555
Load Data 55
to
Address 2AAA
Load Data 55
to
Address 2AAA
Load Data A0
to
Address 5555
Load Data 80
to
Address 5555
Writes Enabled(2)
Load Data AA
to
Address 5555
Load Data XX
to
Any Address(4)
Load Last Byte
to
Last Address
Load Data 20
to
Address 5555
Enter Data
Protect State
Exit Data Protect
State(3)
Load Data XX
to
Any Address(4)
NOTES:
1. Data Format: I/O7 - I/O0 (Hex); Address Format: A14 - A0 (Hex)
2. Write Protect state will be active at end of write even if no other
data is loaded.
3. Write Protect state will be deactivated at end of period even if no
other data is loaded.
4. 1 to 128 bytes of data are loaded.
Load Last Byte
to
Last Address
SOFTWARE PROTECTED PROGRAM CYCLE WAVEFORM(1)(2)(3)
OE\
CE\
t WPH
t WP
WE\
tAS
tAH
A0-A6
BYTE ADDRESS
5555
2AAA
5555
PAGE ADDRESS
A7-A16
tDS
DATA
tBLC
AA
tDH
55
A0
BYTE 0
BYTE 126
BYTE 127
t WC
1. A0-A14 of the selected I/O bytes must conform to the addressing sequence for the first three bytes as shown above.
2. After the command sequence has been issued and a page write operation follows, the page address inputs (A7-A16) of the selected I/O bytes must be the same for each high to low transition
of WE\ (or CE\).
3. OE Must be high only when WE\ and CE\ are both low.
AS8E128K32
Rev. 5.5 9/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
8
EEPROM
AS8E128K32
Austin Semiconductor, Inc.
DATA POLLING CHARACTERISTICS(1)
Symbol
Parameter
Min
Max
Units
tDH
Data Hold Time
10
ns
tOEH
OE\ Hold Time
10
ns
(2)
tOE
OE\ to Output Delay
tWR
Write Recovery Time
100
ns
0
ns
NOTES: 1. These parameters are characterized and not 100% tested.
2. See AC Read Characteristics.
DATA POLLING WAVEFORMS
WE\
CE\
tOEH
OE\
tWR
tDH
t OE
I/O7
High-Z
An
A0 - A16
An
An
An
An
TOGGLE BIT CHARACTERISTICS(1)
Symbol
Parameter
tDH
Data Hold Time
tOEH
OE\ Hold Time
tOE
t
tOEPH
OEHP
ItCC
WR
OE\ to Output Delay
Min
Max
ns
10
ns
(2)
100
OE\ High Pulse
Write Recovery Time
Units
10
ns
150
ns
0
ns
NOTES: 1. These parameters are characterized and not 100% tested.
2. See AC Read Characteristics.
TOGGLE BIT WAVEFORMS(1,2,3)
WE\
CE\
ttOEH
OEH
tOEHP
OE\
tDH
tDH
ttOE
OE
HIGH Z
ttWR
WR
I/O 6
NOTES:
1. Toggling either OE or CE or Both OE and CE will operate toggle bit.
2. Beginning and ending state of I/O6 will vary.
3. Any address location may be used but the address should not vary.
AS8E128K32
Rev. 5.5 9/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
9
EEPROM
AS8E128K32
Austin Semiconductor, Inc.
MECHANICAL DEFINITIONS*
ASI Case #703 (Package Designator Q)
SMD 5962-94585, Case Outline M
4 x D2
4 x D1
DETAIL A
4xD
R
Pin 1
0o - 7o
B
b
L1
SEE DETAIL A
e
A
A1
D3
SMD SPECIFICATIONS
SYMBOL
A
A1
b
B
D
D1
D2
D3
e
R
L1
MIN
0.123
0.000
0.013
MAX
0.200
0.020
0.017
0.010 REF
0.800 BSC
0.870
0.980
0.936
0.890
1.000
0.956
0.050 BSC
0.005
0.035
0.045
*All measurements are in inches.
AS8E128K32
Rev. 5.5 9/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
10
EEPROM
AS8E128K32
Austin Semiconductor, Inc.
MECHANICAL DEFINITIONS*
ASI Case #904 (Package Designator P & PN)
SMD 5962-94585, Case Outline 4 and 5
4xD
D1
A
D2
Pin 56
A1
Pin 1
φb1
(identified by
0.060 square pad)
E1
e
φb
Pin 66
e
66 x φb2
Pin 11
L
SMD SPECIFICATIONS
SYMBOL
A
A1
φb
φb1
φb2
D
D1/E1
D2
e
L
MIN
0.135
0.025
0.016
0.045
0.065
1.065
MAX
0.181
0.035
0.020
0.055
0.075
1.085
1.000 BSC
0.600 BSC
0.100 BSC
0.132
0.155
*All measurements are in inches.
AS8E128K32
Rev. 5.5 9/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
11
EEPROM
AS8E128K32
Austin Semiconductor, Inc.
ORDERING INFORMATION
EXAMPLE: AS8E128K32Q-250/XT
Device Number
AS8E128K32
AS8E128K32
AS8E128K32
AS8E128K32
AS8E128K32
AS8E128K32
Package
Type
Q
Q
Q
Q
Q
Q
Speed
ns
-120
-140
-150
-200
-250
-300
Process
/*
/*
/*
/*
/*
/*
EXAMPLE: AS8E128K32P-200/883C
Device Number
AS8E128K32
AS8E128K32
AS8E128K32
AS8E128K32
AS8E128K32
AS8E128K32
AS8E128K32
AS8E128K32
AS8E128K32
AS8E128K32
AS8E128K32
AS8E128K32
Package
Type
P
PN
P
PN
P
PN
P
PN
P
PN
P
PN
Speed
ns
-120
-120
-140
-140
-150
-150
-200
-200
-250
-250
-300
-300
*AVAILABLE PROCESSES
IT = Industrial Temperature Range
XT = Extended Temperature Range
883C = Full Military Processing
Process
/*
/*
/*
/*
/*
/*
/*
/*
/*
/*
/*
/*
-40oC to +85oC
-55oC to +125oC
-55oC to +125oC
PACKAGE NOTES
P = Pins 8, 21, 28, and 39 are grounds.
PN = Pins 8, 21, 28, and 39 are no connects.
AS8E128K32
Rev. 5.5 9/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
12
EEPROM
Austin Semiconductor, Inc.
AS8E128K32
ASI TO DSCC PART NUMBER
CROSS REFERENCE*
ASI Package Designator Q
ASI Part #
SMD Part #
AS8E128K32Q-120/883C
AS8E128K32Q-120/883C
AS8E128K32Q-140/883C
AS8E128K32Q-140/883C
AS8E128K32Q-150/883C
AS8E128K32Q-150/883C
AS8E128K32Q-200/883C
AS8E128K32Q-200/883C
AS8E128K32Q-250/883C
AS8E128K32Q-250/883C
AS8E128K32Q-300/883C
AS8E128K32Q-300/883C
5962-9458506HMA
5962-9458506HMC
5962-9458505HMA
5962-9458505HMC
5962-9458504HMA
5962-9458504HMC
5962-9458503HMA
5962-9458503HMC
5962-9458502HMA
5962-9458502HMC
5962-9458501HMA
5962-9458501HMC
ASI Package Designator P & PN
ASI Part #
SMD Part #
AS8E128K32P-120/883C
AS8E128K32P-120/883C
AS8E128K32P-140/883C
AS8E128K32P-140/883C
AS8E128K32P-150/883C
AS8E128K32P-150/883C
AS8E128K32P-200/883C
AS8E128K32P-200/883C
AS8E128K32P-250/883C
AS8E128K32P-250/883C
AS8E128K32P-300/883C
AS8E128K32P-300/883C
5962-9458506H5A
5962-9458506H5C
5962-9458505H5A
5962-9458505H5C
5962-9458504H5A
5962-9458504H5C
5962-9458503H5A
5962-9458503H5C
5962-9458502H5A
5962-9458502H5C
5962-9458501H5A
5962-9458501H5C
AS8E128K32PN-120/883C
AS8E128K32PN-120/883C
AS8E128K32PN-140/883C
AS8E128K32PN-140/883C
AS8E128K32PN-150/883C
AS8E128K32PN-150/883C
AS8E128K32PN-200/883C
AS8E128K32PN-200/883C
AS8E128K32PN-250/883C
AS8E128K32PN-250/883C
AS8E128K32PN-300/883C
AS8E128K32PN-300/883C
5962-9458506H4A
5962-9458506H4C
5962-9458505H4A
5962-9458505H4C
5962-9458504H4A
5962-9458504H4C
5962-9458503H4A
5962-9458503H4C
5962-9458502H4A
5962-9458502H4C
5962-9458501H4A
5962-9458501H4C
* ASI part number is for reference only. Orders received referencing the SMD part number will be processed per the SMD.
AS8E128K32
Rev. 5.5 9/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
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