Features
• Fast Read Access Time - 120 ns • Automatic Page Write Operation
– Internal Address and Data Latches for 128-Bytes – Internal Control Timer Fast Write Cycle Time – Page Write Cycle Time - 10 ms Maximum – 1 to 128-Byte Page Write Operation Low Power Dissipation – 80 mA Active Current – 300 µA CMOS Standby Current Hardware and Software Data Protection DATA Polling for End of Write Detection High Reliability CMOS Technology – Endurance: 104 or 105 Cycles – Data Retention: 10 Years Single 5V ± 10% Supply CMOS and TTL Compatible Inputs and Outputs JEDEC Approved Byte-Wide Pinout
•
AT28C010 Mil
•
• • •
1-Megabit (128K x 8) Paged Parallel EEPROMs AT28C010 Military
(continued)
32 LCC Top View
A12 A15 A16 NC VCC WE NC 4 3 2 1 32 31 30
• • •
Pin Configuration
Pin Name A0 - A16 CE OE WE I/O0 - I/O7 NC Function Addresses Chip Enable Output Enable Write Enable Data Inputs/Outputs No Connect 44 LCC Top View
A15 A16 NC NC NC NC VCC WE NC NC A14
CERDIP, FLATPACK Top View
NC A16 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 I/O0 I/O1 I/O2 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 VCC WE NC A14 A13 A8 A9 A11 OE A10 CE I/O7 I/O6 I/O5 I/O4 I/O3
6 5 4 3 2 1 44 43 42 41 40
A0 I/O0 I/O1 I/O2 VSS NC I/O3 I/O4 I/O5 I/O6 I/O7
18 19 20 21 22 23 24 25 26 27 28
A12 A7 A6 A5 NC NC NC A4 A3 A2 A1
7 8 9 10 11 12 13 14 15 16 17
39 38 37 36 35 34 33 32 31 30 29
A13 A8 A9 A11 NC NC NC NC OE A10 CE
I/O1 I/O2 GND I/O3 I/O4 I/O5 I/O6
14 15 16 17 18 19 20
A7 A6 A5 A4 A3 A2 A1 A0 I/O0
5 6 7 8 9 10 11 12 13
29 28 27 26 25 24 23 22 21
A14 A13 A8 A9 A11 OE A10 CE I/O7
PGA Top View
0010D–PEEPR–7/09
Description
The AT28C010 is a high-performance Electrically Erasable and Programmable Read Only Memory. Its one megabit of memory is organized as 131,072 words by 8 bits. Manufactured with Atmel’s advanced nonvolatile CMOS technology, the device offers access times to 120 ns with power dissipation of just 440 mW. When the device is deselected, the CMOS standby current is less than 300 μA. The AT28C010 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 128bytes 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. Atmel's 28C010 has additional features to ensure high quality and manufacturability. The device utilizes internal error correction for extended endurance and improved data retention characteristics. An optional software data protection mechanism is available to guard against inadvertent writes. The device also includes an extra 128-bytes of EEPROM for device identification or tracking.
Block Diagram
Absolute Maximum Ratings*
Temperature Under Bias................................ -55°C to +125°C Storage Temperature ..................................... -65°C to +150°C All Input Voltages (including NC Pins) with Respect to Ground ...................................-0.6V to +6.25V All Output Voltages with Respect to Ground .............................-0.6V to VCC + 0.6V Voltage on OE and A9 with Respect to Ground ...................................-0.6V to +13.5V *NOTICE: Stresses beyond 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 beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
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AT28C010 Military
0010D–PEEPR–7/09
AT28C010 Military
Device Operation
READ: The AT28C010 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 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. 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 byte write has been started it will automatically time itself to completion. Once a programming operation has been initiated and for the duration of tWC, a read operation will effectively be a polling operation. PAGE WRITE: The page write operation of the AT28C010 allows 1 to 128-bytes of data to be written into the device during a single internal programming period. A page write operation is initiated in the same manner as a byte write; the first byte written can then be followed by 1 to 127 additional bytes. Each successive byte must be written within 150 μs (tBLC) of the previous byte. If the tBLC limit is exceeded the AT28C010 will cease accepting data and commence the internal programming operation. All bytes during a page write operation must reside on the same page as defined by the state of the A7 - A16 inputs. For each WE high to low transition during the page write operation, A7 - A16 must be the same. The A0 to 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: The AT28C010 features DATA Polling to indicate the end of a write cycle. During a byte or page write cycle an attempted read 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. TOGGLE BIT: In addition to DATA Polling the AT28C010 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 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. DATA PROTECTION: If precautions are not taken, inadvertent writes may occur during transitions of the host system power supply. Atmel has incorporated both hardware and software features that will protect the memory against inadvertent writes. HARDWARE PROTECTION: H ardware features protect against inadvertent writes to the AT28C010 in the following ways: (a) VCC sense - if VCC is below 3.8V (typical) the write function is inhibited; (b) VCC power-on delay - once VCC has reached 3.8V 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. SOFTWARE DATA PROTECTION: A software controlled data protection feature has been implemented on the AT28C010. When enabled, the software data protection (SDP), will prevent inadvertent writes. The SDP feature may be enabled or disabled by the user; the AT28C010 is shipped from Atmel 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 3-byte command sequence and after tWC the entire AT28C010 will be protected against inadvertent write operations. It should be noted, that once protected the host may still perform a byte or page write to the AT28C010. This is done by preceding the data to be written by the same 3-byte command sequence used to enable SDP.
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0010D–PEEPR–7/09
Once set, SDP will remain active unless the disable command sequence is issued. Power transitions do not disable SDP and SDP will protect the AT28C010 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 3-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. DEVICE IDENTIFICATION: An extra 128-bytes of EEPROM memory are available to the user for device 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. OPTIONAL CHIP ERASE MODE: The entire device can be erased using a 6-byte software code. Please see Software Chip Erase application note for details.
DC and AC Operating Range
AT28C010-12 Operating Temperature (Case) VCC Power Supply Mil. -55°C - 125°C 5V ± 10% AT28C010-15 -55°C - 125°C 5V ± 10% AT28C010-20 -55°C - 125°C 5V ± 10% AT28C010-25 -55°C - 125°C 5V ± 10%
Operating Modes
Mode Read Write (2) Standby/Write Inhibit Write Inhibit Write Inhibit Output Disable Notes: CE VIL VIL VIH X X X 1. X can be VIL or VIH. OE VIL VIH X
(1)
WE VIH VIL X VIH X X
I/O DOUT DIN High Z
X VIL VIH
High Z
2. Refer to AC Programming Waveforms
DC Characteristics
Symbol ILI ILO ISB1 ISB2 ICC VIL Parameter Input Load Current Output Leakage Current VCC Standby Current CMOS VCC Standby Current TTL VCC Active Current Input Low Voltage Condition VIN = 0V to VCC + 1V VI/O = 0V to VCC CE = VCC - 0.3V to VCC + 1V CE = 2.0V to VCC + 1V f = 5 MHz; IOUT = 0 mA Min Max 10 10 300 3 80 0.8 Units μA μA μA mA mA V
4
AT28C010 Military
0010D–PEEPR–7/09
AT28C010 Military
DC Characteristics (Continued)
Symbol VIH VOL VOH1 VOH2 Parameter Input High Voltage Output Low Voltage Output High Voltage Output High Voltage CMOS IOL = 2.1 mA IOH = -400 μA IOH = -100 μA; VCC = 4.5V 2.4 4,2 Condition Min 2.0 0.45 Max Units V V V V
AC Read Characteristics
AT28C010-12 Symbol tACC tCE tOE tOH
(1) (2)
AT28C010-15 Min Max 150 150 0 0 0 55 55
AT28C010-20 Min Max 200 200 0 0 0 55 55
AT28C010-25 Min Max 250 250 0 0 0 55 55 Units ns ns ns ns ns
Parameter Address to Output Delay CE to Output Delay OE to Output Delay CE or OE to Output Float Output Hold from OE, CE or Address, whichever occurred first CE Pulse High Time
Min
Max 120 120
0 0 0
50 50
tDF (3, 4)
tCEPH(5)
50
50
50
50
ns
AC Read Waveforms(1)(2)(3)(4)
Notes:
1. CE may be delayed up to tACC - tCE after the address transition without impact on tACC. 2. OE may be delayed up to tCE - tOE after the falling edge of CE without impact on tCE or by tACC - tOE after an address change without impact in tACC. 3. tDF is specified from OE or CE wichever occurs first (CL = 5 pF). 4. This parameter is characterized and is not 100% tested. 5. If CE is de-asserted, it must remain de-asserted for at least 50ns during read operations otherwise incorrect data may be read.
5
0010D–PEEPR–7/09
Input Test Waveforms and Measurement Level
Output Test Load
Pin Capacitance
f = 1 MHz, T = 25°C(1)
Symbol CIN COUT Typ 4 8 Note: Max 10 Units pF Conditions VIN = 0V VOUT = 0V
12 pF 1. This parameter is 100% characterized and is not 100% tested.
AC Write Characteristics
Symbol tWC tAS tAH tDS tDH tWP tBLC tWPH Parameter Write Cycle Time Address Set-up Time Address Hold Time Data Set-up Time Data Hold Time Write Pulse Width Byte Load Cycle Time Write Pulse Width High 50 0 50 50 0 100 150 Min Max 10 Units ms ns ns ns ns ns μs ns
6
AT28C010 Military
0010D–PEEPR–7/09
AT28C010 Military
AC Write Waveforms
WE Controlled
CE Controlled
Page Mode Characteristics
Symbol tAS, tOES tAH tCS tCH tWP tDS tDH, tOEH Parameter Address, OE Set-up Time Address Hold Time Chip Select Set-up Time Chip Select Hold Time Write Pulse Width (WE or CE) Data Set-up Time Data, OE Hold Time Min 0 50 0 0 100 50 0 Max Units ns ns ns ns ns ns ns
7
0010D–PEEPR–7/09
Page Mode Write Waveforms (1)(2)
Notes:
1. 2.
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.
8
AT28C010 Military
0010D–PEEPR–7/09
AT28C010 Military
Chip Erase Waveforms
min.) sec (min.) 0.5V
Software Data Protection Enable Algorithm(1)
LOAD DATA AA TO ADDRESS 5555
LOAD DATA 55 TO ADDRESS 2AAA
LOAD DATA A0 TO ADDRESS 5555
WRITES ENABLED(2)
LOAD DATA XX TO ANY ADDRESS(4)
LOAD LAST BYTE TO LAST ADDRESS
ENTER DATA PROTECT STATE
Notes:
1. Data Format: I/O7 - I/O0 (Hex); Address Format: A14 - A0 (Hex). 2. Write Protect state will be activated at end of write even if no other data is loaded. 3. Write Protect state will be deactivated at end of write period even if no other data if loaded. 4. 1 to 128 bytes of data are loaded.
9
0010D–PEEPR–7/09
Software Data Protection Disable Algorithm(1)
LOAD DATA AA TO ADDRESS 5555
LOAD DATA 55 TO ADDRESS 2AAA
LOAD DATA 80 TO ADDRESS 5555
LOAD DATA AA TO ADDRESS 5555
LOAD DATA 55 TO ADDRESS 2AAA
LOAD DATA 20 TO ADDRESS 5555
EXIT DATA PROTECT STATE(3)
LOAD DATA XX TO ANY ADDRESS(4)
LOAD LAST BYTE TO LAST ADDRESS
Software Protected Program Cycle Waveform(1)(2)(3)
Notes:
1. A0 - A14 must conform to the addressing sequence for the first 3 bytes as shown above. 2. After the command sequence has been issued and a page write operation follows, the page address inputs (A7 - A16) 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.
10
AT28C010 Military
0010D–PEEPR–7/09
AT28C010 Military
Data Polling Characterstics(1)
Symbol tDH tOEH tOE tWR Parameter Data Hold Time OE Hold Time OE to Output Delay (2) Write Recovery Time Notes: 0 1. These parameters are characterized and not 100% tested. 2. See AC Read Characteristics. Min 10 10 Typ Max Units ns ns ns ns
Data Polling Waveforms
Toggle Bit Characteristics(1)
Symbol tDH tOEH tOE tOEHP tWR Parameter Data Hold Time OE Hold Time OE to Output Delay OE High Pulse Write Recovery Time Notes:
(2)
Min 10 10
Typ
Max
Units ns ns ns
150 0 1. These parameters are characterized and not 100% tested. 2. See AC Read Characteristics.
ns ns
Toggle Bit Waveforms(1)(2)(3)
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 addres location may be used but the address should not vary.
11
0010D–PEEPR–7/09
AT28C010 Ordering Information(1)
tACC (ns) 120 ICC (mA) Active 80 Standby 0.3 Ordering Code AT28C010(E)-12DM/883 AT28C010(E)-12EM/883 AT28C010-12FM/883 AT28C010(E)-12LM/883 AT28C010(E)-12UM/883 AT28C010(E)-15DM/883 AT28C010(E)-15EM/883 AT28C010-15FM/883 AT28C010(E)-15LM/883 AT28C010(E)-15UM/883 AT28C010(E)-20DM/883 AT28C010(E)-20EM/883 AT28C010-20FM/883 AT28C010(E)-20LM/883 AT28C010(E)-20UM/883 AT28C010(E)-25DM/883 AT28C010(E)-25EM/883 AT28C010-25FM/883 AT28C010(E)-25LM/883 AT28C010(E)-25UM/883 1. See Valid Part Number table below. Package 32D6 32L 32F 44L 30U 32D6 32L 32F 44L 30U 32D6 32L 32F 44L 30U 32D6 32L 32F 44L 30U Operation Range Military/883C Class B, Fully Compliant (-55°C to 125°C)
150
80
0.3
Military/883C Class B, Fully Compliant (-55°C to 125°C)
200
80
0.3
Military/883C Class B, Fully Compliant (-55°C to 125°C)
250
80
0.3
Military/883C Class B, Fully Compliant (-55°C to 125°C)
Note:
Package Type 32D6 32F 32L 44L 30U W 32-Lead, 0.600" Wide, Non-Windowed, Ceramic Dual Inline (Cerdip) 32-Lead, Non-Windowed, Ceramic Bottom-Brazed Flat Package (Flatpack) 32-Pad, Non-Windowed, Ceramic Leadless Chip Carrier (LCC) 44-Pad, Non-Windowed, Ceramic Leadless Chip Carrier (LCC) 30-Pin, Ceramic Pin Grid Array (PGA) Die Options Blank E Standard Device: Endurance = 10K Write Cycles; Write Time = 10 ms High Endurance Option: Endurance = 100K Write Cycles
12
AT28C010 Military
0010D–PEEPR–7/09
AT28C010 Military
5962-38267 Ordering Information(1)
tACC (ns) 120 ICC (mA) Active 80 Standby 0.3 Ordering Code 5962-38267 07 MXX 5962-38267 07 MZX 5962-38267 07 MYX 5962-38267 07 MTX 5962-38267 05 MXX 5962-38267 05 MUX 5962-38267 05 MZX 5962-38267 05 MYX 5962-38267 05 MTX 5962-38267 03 MXX 5962-38267 03 MUX 5962-38267 03 MZX 5962-38267 03 MYX 5962-38267 03 MTX 5962-38267 01 MXX 5962-38267 01 MUX 5962-38267 01 MZX 5962-38267 01 MYX 5962-38267 01 MTX 1. See Valid Part Number table below. Package 32D6 32F 44L 30U 32D6 32L 32F 44L 30U 32D6 32L 32F 44L 30U 32D6 32L 32F 44L 30U Operation Range Military/883C Class B, Fully Compliant (-55°C to 125°C) Military/883C Class B, Fully Compliant (-55°C to 125°C)
150
80
0.3
200
80
0.3
Military/883C Class B, Fully Compliant (-55°C to 125°C)
250
80
0.3
Military/883C Class B, Fully Compliant (-55°C to 125°C)
Note:
Package Type 32D6 32F 32L 44L 30U W 32-Lead, 0.600" Wide, Non-Windowed, Ceramic Dual Inline (Cerdip) 32-Lead, Non-Windowed, Ceramic Bottom-Brazed Flat Package (Flatpack) 32-Pad, Non-Windowed, Ceramic Leadless Chip Carrier (LCC) 44-Pad, Non-Windowed, Ceramic Leadless Chip Carrier (LCC) 30-Pin, Ceramic Pin Grid Array (PGA) Die Options Blank E Standard Device: Endurance = 10K Write Cycles; Write Time = 10 ms High Endurance Option: Endurance = 100K Write Cycles
Valid Part Numbers
0010D–PEEPR–7/09
13
Packaging Information
32D6, 32-Lead, 0.600" Wide, Non-Windowed, Ceramic Dual inline Package (Cerdip) Dimensions in Inches and (Millimeters)
MIL-STD-1835 D-16 CONFIG A
32F, 32-Lead, Non-Windowed, Ceramic Bottom Brazed Flat Package (Flatpack) Dimensions in Inches and (Millimeters)
MIL-STD-1835 F-18 CONFIG B
42.70(1.68) 41.70(1.64)
PIN #1 ID PIN 1
9.40(0.370) 6.86(0.270) 0.51(0.020) 0.38(0.015)
15.50(0.610) 13.00(0.510)
21.08(0.830) 20.60(0.811) 1.27(0.050) BSC
2.49(0.098)MAX 38.10(1.500) REF 5.72(0.225) MAX SEATING PLANE 5.08(0.200) 3.18(0.125) 2.54(0.100)BSC 1.65(0.065) 1.14(0.045) 15.70(0.620) 15.00(0.590) 0.381(0.015) 0.203(0.008) 0.127(0.005)MIN 12.40(0.488) 11.99(0.472) 1.14(0.045) MAX
1.52(0.060) 0.38(0.015) 0.58(0.023) 0.36(0.014)
0.18(0.007) 0.10(0.004) 10.36(0.408) 9.02(0.355) 1.83(0.072) 0.76(0.030)
3.05(0.120) 2.49(0.098)
1.14(0.045) 0.66(0.026)
0º~ 15º REF
17.80(0.700) MAX
JEDEC OUTLINE MO-115
MIL-STD-1835 C-12
32L, 32-Pad, Non-Windowed, Ceramic Leadless Chip Carrier (LCC) Dimensions in Inches and (Millimeters)*
11.63(0.458) 11.23(0.442) 2.54(0.100) 2.16(0.085)
44L, 44-Pad, Non-Windowed, Ceramic Leadless Chip Carrier (LCC) Dimensions in Inches and (Millimeters)*
16.81(0.662) 16.26(0.640) 2.74(0.108) 2.16(0.085)
14.22(0.560) 13.72(0.540)
16.81(0.662) 16.26(0.640)
PIN 1 1.40(0.055) 1.14(0.045)
1.91(0.075) 1.40(0.055)
PIN 1 1.40(0.055) 1.14(0.045)
2.03(0.080) 1.40(0.055)
2.41(0.095) 1.91(0.075)
INDEX CORNER
2.41(0.095) 1.91(0.075)
INDEX CORNER
0.635(0.025) X 45° 0.381(0.015) 0.305(0.012) RADIUS 0.178(0.007)
0.635(0.025) X 45° 0.381(0.015) 0.305(0.012) RADIUS 0.178(0.007)
10.16(0.400) BSC
12.70(0.500) BSC
0.737(0.029) 0.533(0.021)
0.737(0.029) 0.533(0.021)
1.27(0.050) TYP
1.02(0.040) X 45° 2.16(0.085) 1.65(0.065)
1.27(0.050) TYP
1.02(0.040) X 45° 2.16(0.085) 1.65(0.065)
7.62(0.300) BSC
12.70(0.500) BSC
*Controlling dimension: millimeters
*Controlling dimension: millimeters
14
AT28C010 Mil
0010D–PEEPR–7/09
AT28C010 Mil
Packaging Information
30U, 30-Pin, Ceramic Pin Grid Array (PGA) Dimensions in Inches and (Millimeters)
7.26(0.286) 6.50(0.256) 13.74(0.541) 13.36(0.526) 2.57(0.101) 2.06(0.081) 1.40(0.055) 1.14(0.045)
16.18(0.637) 15.82(0.623)
0.58(0.023) 0.43(0.017)
3.12(0.123) 2.62(0.103) 1.83(0.072) 1.57(0.062) 14.17(0.558) 13.77(0.542) 2.54(0.100) TYP
16.71(0.658) 16.31(0.642)
12.70(0.500) TYP
2.54(0.100) TYP 10.41(0.410) 9.91(0.390)
15
0010D–PEEPR–7/09
Headquarters
Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131 USA Tel: 1(408) 441-0311 Fax: 1(408) 487-2600
International
Atmel Asia Unit 1-5 & 16, 19/F BEA Tower, Millennium City 5 418 Kwun Tong Road Kwun Tong, Kowloon Hong Kong Tel: (852) 2245-6100 Fax: (852) 2722-1369 Atmel Europe Le Krebs 8, Rue Jean-Pierre Timbaud BP 309 78054 Saint-Quentin-enYvelines Cedex France Tel: (33) 1-30-60-70-00 Fax: (33) 1-30-60-71-11 Atmel Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan Tel: (81) 3-3523-3551 Fax: (81) 3-3523-7581
Product Contact
Web Site www.atmel.com Technical Support p_eeprom@atmel.com Sales Contact www.atmel.com/contacts
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0010D–PEEPR–7/09