White Electronic Designs
64Mx32 Flash Multi-Chip Package 3.0V Page Mode Flash Memory
FEATURES
Single power supply operation • 3 volt read, erase, and program operations I/O Control • All input levels (address, control, and DQ input levels) and outputs are determined by voltage on VIO input. VIO range is 1.65 to VCC Secured Silicon Sector region • 128-word/256-byte sector for permanent, secure identification through an 8-word/16-byte random Electronic Serial Number, accessible through a command sequence • May be programmed and locked at the factory or by the customer Flexible sector architecture • Five hundred twelve 64 Kword (128 Kbyte) sectors • Two hundred fifty-six 64 Kword (128 Kbyte) sectors • One hundred twenty-eight 64 Kword (128 Kbyte) sectors Compatibility with JEDEC standard • Provides software compatibility for single-power supply flash, and superior inadvertent write protection 100,000 erase cycles per sector typical 20-year data retention typical Software features
W764M32V-XSBX
ADVANCED*
• Program Suspend and Resume: read other sectors before programming operation is completed • Erase Suspend and Resume: read/program other sectors before an erase operation is completed • Data# polling and toggle bits provide status • Unlock Bypass Program command reduces overall multiple-word programming time • CFI (Common Flash Interface) compliant: allows host system to identify and accommodate multiple flash devices Hardware features • Advanced Sector Protection • WP#/ACC input accelerates programming time (when high voltage is applied) for greater throughput during system production. Protects first or last sector regardless of sector protection settings • Hardware reset input (RESET#) resets device • Ready/Busy# output (RY/BY#) detects program or erase cycle completion
* This product is under development, is not qualified or characterized and is subject to change or cancellation without notice.
PERFORMANCE CHARACTERISTICS
High Performance • 100, 120 ns • 8-word/16-byte page read buffer • 25 ns page read times • 16-word/32-byte write buffer reduces overall programming time for multiple-word updates Package option • 107 BGA, 14mm x 17mm • 1.0mm pitch
White Electronic Designs Corp. reserves the right to change products or specifications without notice. March 2006 Rev. 2 1 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
GENERAL DESCRIPTION
The W764MB2V-XSBX device is a 3.0V single power flash memory. The device utilizes four organized as 33,554,432 words or 67, 108,864 bytes. The device has 64 -bit wide data bus that can also function as an 32-bit wide data bus by using the BYTE# input. The device can be programmed either in the host system or in standard EPROM programmers. Each device requires a single 3.0 volt power supply for both read and write functions. In addition to a VCC input, an high-voltage accelerated program (WP / ACC) input provides shorter programming times through increased current. This feature is intended to facilitate factory throughput during system production, but may also be used in the field if desired. The devices are entirely command set compatible with the JEDEC single power-supply Flash standard. Commands are written to the device using standard microprocessor write timing. Write cycles also internally latch addresses and data needed for the programming and erase operations. The sector erase architecture allows memory sectors to be erased and reprogrammed without affecting the data contents of other sectors. The device is fully erased when shipped from the factory. Device programming and erasure are initiated through command sequences. Once a program or erase operation has begun, the host system need only poll the DQ7 (Data# Polling) or DQ6 (toggle) status bits or monitor the Ready / Busy# (RY / BY#) output to determine whether the operation is complete. To facilitate programming, an Unlock Bypass mode reduces command sequence over head by requiring only two write cycles to program data instead of four. The I/O (VIO) control allows the host system to set the voltage levels that the device generates and tolerates on all input levels (address, chip control, and DQ input levels) to the same voltage level that is asserted on the VIO pin. This allows the device to operate in a 1.8 V or 3 V system environment as required. Hardware data protection measures include a low VCC detector that automatically inhibits write operations during power transitions. Persistent Sector Protection provides in-system, comand-enabled protection of any combination of sectors using a single power supply at VCC. Password
W764M32V-XSBX
ADVANCED*
Sector Protection prevents unauthorized write and erase operations in any combination of sectors through a userdefined 64-bit password. The erase Suspend / Erase Resume feature allows the host system to pause and erase operation in a given sector to read or program any other sector and then complete the erase operation. The Program Suspend / Program Resume feature enables the host system to pause the program operation in a given sector to read any other sector and then complete the program operation. The hardware RESET# pin terminates any operation in progress and resets the device, after which it is then ready for a new operation. The RESET# pin may be tied to the system reset circuitry. A system reset would thus also reset the device, enabling the host system to read boot-up firmware from the Flash memory device. The device reduces power consumption in the standby mode when it detects specific voltage levels on CS# and RESET#, or when addresses have been stable for a specified period of time. The Secured Silicon Sector provides a 128-work/256-byte area for code or data that can be permanently protected. Once this sector is protected, no further changes within the sector can occur. The Write Protect (WP# / ACC) feature protects the first or last sector by asserting a logic low on the WP# pin.
White Electronic Designs Corp. reserves the right to change products or specifications without notice. March 2006 Rev. 2 2 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
FIG 1: PIN CONFIGURATION (TOP VIEW)
1 2 3 4 5 6 7 8 9
W764M32V-XSBX
ADVANCED*
PIN DESCRIPTION
DQ0-63 A0-24, A-1* WE#0-1 CS#0-1 OE# RESET# WP#/ACC RY/BY# VCC VIO GND DNU Data Inputs/Outputs Address Inputs Write Enables Chip Selects Output Enable Hardware Reset Hardware Write Protection/Acceleration Ready/Busy Output Power Supply I/O Power Supply Ground Do Not Use
A B C D E F G H J K L M
VI0
VCC
DQ24
DQ8
GND
A0
A3
VCC
GND
DQ10
DQ25
DQ9
GND
A1
A4
A6
VIO
DQ12
DQ27
DQ11
DQ26
GND
OE#
A5
RY/BY#
A7
DQ13
DQ29
DQ28
DNU
GND
A2
RESET#
WP/ACC#
A14
DQ14
DQ30
DQ31
VIO
GND
VIO
CS0#
WE1#
A15
DQ15
GND
VIO
VCC
GND
VCC
VIO
GND
A22
DQ0
GND
VIO
VCC
GND
VCC
VIO
GND
A23
DQ1
DQ17
DQ16
VIO
GND
VIO
CS1#
WE0#
A17
* A-1 is the least significant address.
DQ18
DQ2
DQ3
DNU
GND
A19
A20
A21
A18
DQ19
DQ4
DQ20
DQ21
GND
A-1
A10
A9
A8
VIO
DQ5
DQ6
DQ23
GND
A16
A12
A11
VIO
BLOCK DIAGRAM
GND
VCC
DQ22
DQ7
GND
A24
A13
VCC
GND
WE0# CS0# RY/BY# RESET# OE# A-1,A0-24
WE1# CS1#
64M X 8
64M X 8
64M X 8
64M X 8
WP#/ACC DQ0-7 DQ8-15 DQ16-23 DQ24-31
White Electronic Designs Corp. reserves the right to change products or specifications without notice. March 2006 Rev. 2 3 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
ABSOLUTE MAXIMUM RATINGS
Parameter Operating Temperature Supply Voltage Range (VCC) Signal Voltage Range Storage Temperature Range Endurance (write/erase cycles) -55 to +125 -0.5 to +4.0 -0.5 to Vcc +0.5 -55 to +125 1,000,000 min. Unit °C V V °C cycles
W764M32V-XSBX
ADVANCED*
CAPACITANCE
TA = +25°C, F = 1.0MHz Parameter WE1-4# capacitance CS1-4# capacitance Data I/O capacitance Address input capacitance RESET# capacitance RY/BY# capacitance OE# capacitance Symbol CWE CCS CI/O CAD CRS CRB COE Max
TBD TBD TBD TBD TBD TBD TBD
NOTES: 1. Minimum DC voltage on input or input or I/Os is -0.5V. During voltage transitions, inputs or I/Os may overshoot VSS to -2.0V for periods of up to 20ns. Maximum DC voltage on input or I/Os us VCC + 0.5V. During voltage transitions, input or I/O pins may overshoot to VCC + 2.0V for periods up to 20ns 2. Minimum DC input voltage on pins A9, OE#, and ACC is 0.5V. During voltage transitions, A9, OE#, and ACC may overshoot VSS to -2.0V for periods of up to 20ns. Maximum DC input voltage on pin A9, OE#, and ACC is +12.5V which may overshoot to +14.0V for periods up to 20ns 3. No more than one output may be shorted to ground at a time. Duration of the short circuit should not be greater than one second. 4. Stresses above those listed under Absolute Maxium Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational sections of the data sheet is not implied. Exposure of the device to absolute maxium rating conditons for extended peroids may affect device reliability
Unit pF pF pF pF pF pF pF
This parameter is guaranteed by design but not tested.
DATA RETENTION
Parameter Pattern Data Retention Time Test Conditions 150°C 125°C Min 10 20 Unit Years Years
RECOMMENDED OPERATING CONDITIONS
Parameter Supply Voltage Operating Temp. (Mil.) Operating Temp. (Ind.) Symbol VCC TA TA Min 3.0 -55 -40 Max 3.6 +125 +85 Unit V °C °C
White Electronic Designs Corp. reserves the right to change products or specifications without notice. March 2006 Rev. 2 4 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
DC CHARACTERISTICS – CMOS COMPATIBLE
VCC = 3.3V ± 0.3V, -55°C ≤ TA ≤ +125°C Parameter Input Load Current (1) A9 Input Load Current Output Leakage Current Symbol ILI ILIT ILO Conditions VIN = VSS to VCC, #VCC = VCC(MAX) VCC = to VCC(MAX); A9 = 12.5V VOUT = VSS to VCC, # VCC = VCC(MAX) CE# = VIL#, OE# = VIH, VCC = VCC(MAX); # f = 1 MHz, Byte Mode CE# = VIL#, OE# = VIH, VCC = VCC(MAX); # f = 5MHz, Word Mode CE# = VIL#, OE# = VIH, VCC = VCC(MAX); f = 10MHz CE# = VIL#, OE# = VIH, VCC = VCC(MAX) VCC = VCC(MAX); VIO = VCC; OE# = VIH; # VIL = VSS + 0.3V/-0.1V; # CE#, RESET# = VSS ± 0.3V VCC = VCC(MAX); VIO = VSS + 0.3V/0.1V; RESET# = VSS ± 0.3V VCC = VCC(MAX); VIO = VCC; VIH = VCC ± 0.3V; #VIL = VSS + 0.3V/0.1V; WP#/ACC = VIH CE# = VIL, OE# = VIH, VCC = VCC(MAX), #WP#/ACC = VIH WP#/ACC pin VCC pin -0.1 0.7 x VIO VCC = 2.7 - 3.6V VCC = 2.7 - 3.6V IOL = -100 µA IOH = -100 µA 11.5 11.5 0.85 x VIO 2.3 Min
W764M32V-XSBX
ADVANCED*
Typ
Max WP/ACC: ±2.0 Others: ±1.0 35 ±1.0
Unit µA µA µA mA mA mA mA µA µA µA
24 120 1 200 4 4 4 40 200
80 200 10 320 20 20 20 80 320 0.3 x VIO VIO + 0.3 12.5 12.5 0.15 x VIO 2.5
VCC Active Current for Read (1)
ICC1
VCC Intra-Page Read Current (1) VCC Active Erase/Program Current (2,3) VCC Standby Current VCC Reset Current Automatic Sleep Mode (4)
ICC2 ICC3 ICC4 ICC5 ICC6
ACC Accelerated Program Current Input Low Voltage (5) Input High Voltage (5) Voltage for ACC Erase/Program Acceleration Voltage for Autoselect and Temporary Sector Unprotect Output Low Voltage (5) Output High Voltage (5) Low VCC Lock-Out Voltage
IACC VIL VIH VHH VID VOL VOH VLKO
mA V V V V V V V
NOTES: 1. The ICC current is typically less than 2 mA/MHz, with OE# at VIH 2. ICC active while Embedded Erase or Embedded Program or Write Buffer Programming is in progress. 3. Not 100% tested. 4. Automatic sleep mode enables the lower power mode when addresses remain stable for tACC + 30ns. 5. VIO = 1.65-1.95V or 2.7-3.6V. 6. VCC = 3 V and VIO = 3V or 1.8V. When VIO is at 1.8V, I/O pins cannot operate at 3V.
White Electronic Designs Corp. reserves the right to change products or specifications without notice. March 2006 Rev. 2 5 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
VCC = 3.3V ± 0.3V, -55°C ≤ TA ≤ +125°C Parameter Write Cycle Time (3) Chip Select Setup Time (3) Write Enable Pulse Width Address Setup Time Data Setup Time Data Hold Time Address Hold Time Write Enable Pulse Width High (3) Duration of Byte Programming Operation (1) Sector Erase (2) Read Recovery Time before Write (3) VCC Setup Time Address Setup Time to OE# low during toggle bit polling Write Recovery Time from RY/BY# (3) Program/Erase Valid to RY/BY#
NOTES: 1. Typical value for tWHWH1 is 60 µs. 2. Typical value for tWHWH2 is 0.5 sec. 3. Guaranteed by design, but not tested.
W764M32V-XSBX
ADVANCED*
AC CHARACTERISTICS – WRITE/ERASE/PROGRAM OPERATIONS – WE# CONTROLLED
Symbol tAVAV tELWL tWLWH tAVWL tDVWH tWHDX tWLAX tWHWL tWHWH1 tWHWH2 tGHWL tVCS tWC tCS tWP tAS tDS tDH tAH tWPH Min 100 0 35 0 45 0 45 30 -100 Max Min 120 0 50 0 50 0 50 30 -120 Max ns ns ns ns ns ns ns ns µs sec ns µs ns ns ns Unit
500 3.5 0 50 15 0 90 0 50 15 0 90
500 5
tASO tRB tBUSY
AC CHARACTERISTICS – READ-ONLY OPERATIONS
VCC = 3.3V ± 0.3V, -55°C ≤ TA ≤ +125°C Parameter Read Cycle Time (1) Address Access Time Chip Select Access Time Page Access Time Output Enable to Output Valid Chip Select High to Output High Z Output Enable High to Output High Z Output Hold from Addresses, CS# or OE# Change, Whichever occurs first Output Enable Hold Time (1) Read Toggle and Data# Polling
1. Guaranteed by design, not tested.
6 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
Symbol Min tAVAV tAVQV tELQV tRC tACC tCE tPACC tGLQV tEHQZ tGHQZ tAXQX tOE tDF tDF tOH tOEH 0 0 10 100
-100 Max 100 100 25 25 20 20 0 0 10 Min 120
-120 Max
Unit ns 120 120 30 35 20 20 ns ns ns ns ns ns ns ns ns
White Electronic Designs Corp. reserves the right to change products or specifications without notice. March 2006 Rev. 2
White Electronic Designs
W764M32V-XSBX
ADVANCED*
FIGURE 2: AC WAVEFORMS FOR READ OPERATIONS
tRC Addresses tACC CS# tDF OE# tOEH WE# tCE tOE Addresses Stable
tOH High Z
Outputs
High Z
Output Valid
RESET# RY/BY# OV
FIGURE 3: PAGE READ TIMING
Amax-A2 Same Page
A2 -A-1
Aa
tACC
Ab
tPACC
Ac
tPACC tPACC
Ad
Data Bus CE# OE#
Qa
Qb
Qc
Qd
White Electronic Designs Corp. reserves the right to change products or specifications without notice. March 2006 Rev. 2 7 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
W764M32V-XSBX
ADVANCED*
AC CHARACTERISTICS – HARDWARE RESET (RESET#)
Parameter RESET# Pin Low (During Embedded Algorithms) to Read Mode (1) RESET# Pin Low (NOT During Embedded Algorithms) to Read Mode (1) RESET# Pulse Width RESET# High Time Before Read (1) RESET# Low to Standby Mode (1) RY/BY# Recovery Time
NOTE: 1. Not tested.
Symbol Min tready tready tRP tRH tRPD tRB 500 50 20 0 Max 20 500
Unit µs ns ns ns µs ns
FIGURE 4: RESET TIMINGS NOT DURING EMBEDDED ALGORITHMS
RY/BY#
CS#, OE#
tRH
RESET#
tRP tReady
FIGURE 5: RESET TIMINGS DURING EMBEDDED ALGORITHMS
tReady
RY/BY#
tRB
CS#, OE#
RESET#
tRP
White Electronic Designs Corp. reserves the right to change products or specifications without notice. March 2006 Rev. 2 8 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
tRH
White Electronic Designs
FIGURE 6: PROGRAM OPERATIONS
W764M32V-XSBX
ADVANCED*
tWC Addresses 555h
tAS PA tAH PA PA
CS# tCH OE# tWP WE# tCS tWPH
tDH
tWHWH1
tDS
Data
A0h
PD tBUSY
Status
DOUT tRB
RY/BY#
VCC tVCS
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. DOUT is the output of the data written to the device. 4. Figure indicates last two bus cycles of four bus cycle sequence.
White Electronic Designs Corp. reserves the right to change products or specifications without notice. March 2006 Rev. 2 9 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
W764M32V-XSBX
ADVANCED*
FIGURE 7: ACCELERATED PROGRAM TIMING DIAGRAM
VHH WP#/ACC VIL or VIH tVHH tVHH VIL or VIH
FIGURE 8: CHIP/SECTOR ERASE OPERATION TIMINGS
tWC Addresses 2AAh
tAS SA
555h for chip erase
VA tAH
VA
CS#
OE# tWP WE# tCS
tDS
tCH
tWPH
tDH
tWHWH2 30h
10 for Chip Erase
Data
55h
In Progress
tBUSY
Complete tRB
RY/BY# tVCS VCC
NOTES: 1. SA = Sector Address (for Sector Erase), VA = Valid Address for reading status data
White Electronic Designs Corp. reserves the right to change products or specifications without notice. March 2006 Rev. 2 10 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
W764M32V-XSBX
ADVANCED*
FIGURE 9: DATA POLLING TIMINGS (DURING EMBEDDED ALGORITHMS)
tRC Addresses VA tACC tCE CS# tCH OE# tOEH WE# tOH DQ7 Complement Complement True Valid Data High Z tDF tOE VA VA
DQ0-DQ6 tBUSY RY/BY#
Status Data
Status Data
True
Valid Data
High Z
NOTE: VA = Valid address. Illustration shows first status cycle after command sequence, last status read cycle, and array data read cycle.
White Electronic Designs Corp. reserves the right to change products or specifications without notice. March 2006 Rev. 2 11 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
W764M32V-XSBX
ADVANCED*
FIGURE 10: TOGGLE BIT TIMINGS (DURING EMBEDDED ALGORITHMS)
tAHT Addresses
tAS
tAHT tASO CS# tOEH WE# tOEPH OE# tDH DQ6/DQ2 Valid Data Valid Status (First Read) RY/BY# tOE Valid Status (Second Read) Valid Status (Stops Toggling) Valid Data tCEPH
NOTE: VA = Valid address, not required for DQ6. Illustration shows first two status cycle after command sequence, last status read cycle, and array data read cycle.
FIGURE 11: DQ2 Vs. DQ6
Enter Embedded Erasing
Erase Suspend Erase
Enter Erase Suspend Program Erase Suspend Program
Erase Resume Erase Suspend Read Erase Erase Complete
WE#
Erase Suspend Read
DQ6
DQ2
NOTE: DQ2 toggles only when read at an address within an erase-suspended sector. The system may use OE# or CS# to toggle DQ2 and DQ6.
White Electronic Designs Corp. reserves the right to change products or specifications without notice. March 2006 Rev. 2 12 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
W764M32V-XSBX
ADVANCED*
AC CHARACTERISTICS – ALTERNATE CS# CONTROLLED ERASE AND PROGRAM OPERATIONS
Parameter JEDEC tAVAV tAVWL tELAX tDVEH tEHDX tGHEL tWLEL tEHWH tELEH tEHEL tWHWH1 tWHWH1 tWHWH2 Std tWC tAS tAH tDS tDH tGHEL TWS tWH tCP tCPH tWHWH1 tWHWH1 tWHWH2 Description Write Cycle Time (1) Address Setup Time Address Hold Time Data Setup Time Data Hold Time Read Recovery Time Before Write (OE# High to WE# Low) WE# Setup Time WE# Hold Time CS# Pulse Width CS# Pulse Width High Programming Operation Accelerated Programming Operation Sector Erase Operation Min Min Min Min Min Min Min Min Min Min Typ Typ Typ Speed Options 100 100 0 45 45 0 0 0 0 35 30 60 54 0.5 120 120 0 50 50 0 0 0 0 35 30 6 54 05 Unit ns ns ns ns ns ns ns ns ns ns µs µs sec
NOTE: 1. Not tested.
White Electronic Designs Corp. reserves the right to change products or specifications without notice. March 2006 Rev. 2 13 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
W764M32V-XSBX
ADVANCED*
FIGURE 12: ALTERNATE CS# CONTROLLED WRITE (ERASE/PROGRAM) OPERATION TIMINGS
555 for Program 2AA for Erase PA for Program SA for Sector Erase 555 for Chip Erase
Data# Polling
Addresses tWC tWH WE# tGHEL OE# tCP CS# tWS tDS tDH Data tHR
A0 for Program 55 for Erase PD for Program 30 for Sector Erase 10 for Chip Erase
PA tAS tAH
tWHWH1 OR 2
tCPH
tBUSY DQ7# DOUT
RESET#
RY/BY#
NOTES: 1. Figure indicates last two bus cycles of a program or erase operation. 2. PA = program address, SA = sector address, PD = program data. 3. DQ7 is the complement of the data written to the device. DOUT is the data written to the device.
White Electronic Designs Corp. reserves the right to change products or specifications without notice. March 2006 Rev. 2 14 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
W764M32V-XSBX
ADVANCED*
PACKAGE: 107 PBGA (PLASTIC BALL GRID ARRAY) BOTTOM VIEW
107 X 0.60 (0.024)NOM
987654321 A B C D E F G H J K L M
1.00 (0.039)NOM 8.00 (0.315) NOM
11.00 (0.433) NOM
17.10 (0.673) MAX
1.00 (0.039) NOM
14.10 (0.555) MAX
0.50 (0.020) NOM 2.32 (0.091) MAX
ALL LINEAR DIMENSIONS ARE IN MILLIMETERS AND PARENTHETICALLY IN INCHES
ORDERING INFORMATION
W 7 64M32 V XXX SB X White Eletronic Designs Corp. Flash: Organization, 64M x 32: 3.3V Power Supply: Access Time (ns): 100 = 100ns 120 = 120ns ES = Non-qualified product 1 Package Type: SB = 107 PBGA, 14mm x 17mm Devise Grade: M = Military -55°C to +125°C I = Industrial -40°C to +85°C C = Commercial 0°C to +70°C Blank = No temperature range specified for non-qualified product
NOTE 1: W764M32V-ESSB is only available product until completion of qualification.
White Electronic Designs Corp. reserves the right to change products or specifications without notice. March 2006 Rev. 2 15 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
Document Title
64Mx32 Flash 3.3V
W764M32V-XSBX
ADVANCED*
Revision History Rev #
Rev 0 Rev 1
History
Initial Release Changes (All Pages) 1.1 Add AC + DC characteristics and timing diagrams 1.2 Update package dimensions 1.3 Add preliminary pinout
Release Date
November 2005 February 2006
Status
Advanced Advanced
Rev 2
Changes (Pg. 1, 3, 16) 2.1 Correct typographical error in pinout on page 3, ball 'B4' is DQ9
March 2006
Advanced
White Electronic Designs Corp. reserves the right to change products or specifications without notice. March 2006 Rev. 2 16 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com