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64K
X76F640
Secure SerialFlash
DESCRIPTION
8Kx8+32x8
FEATURES * 64-bit Password Security --Five 64-bit Passwords for Read, Program and Reset * 8192 Byte+32 Byte Password Protected Arrays --Seperate Read Passwords --Seperate Write Passwords --Reset Password * Programmable Passwords * Retry Counter Register --Allows 8 tries before clearing of both arrays --Password Protected Reset * 32-bit Response to Reset (RST Input) * 32 byte Sector Program * 400kHz Clock Rate * 2 wire Serial Interface * Low Power CMOS --2.7 to 5.5V operation --Standby current Less than 1 A --Active current less than 3 mA * High Reliability Endurance: --100,000 Write Cycles * Data Retention: 100 years * Available in: --8 lead SOIC --SmartCard Module
The X76F640 is a Password Access Security Supervisor, containing one 65536-bit Secure SerialFlash array and one 256-bit Secure SerialFlash array. Access to each memory array is controlled by two 64-bit passwords. These passwords protect read and write operations of the memory array. A separate RESET password is used to reset the passwords and clear the memory arrays in the event the read and write passwords are lost. The X76F640 features a serial interface and software protocol allowing operation on a popular two wire bus. The bus signals are a clock Input (SCL) and a bidirectional data input and output (SDA). Access to the device is controlled through a chip select (CS) input, allowing any number of devices to share the same bus. The X76F640 also features a synchronous response to reset providing an automatic output of a hard-wired 32-bit data stream conforming to the industry standard for memory cards. The X76F640 utilizes Xicor's proprietary Direct WriteTM cell, providing a minimum endurance of 100,000 cycles and a minimum data retention of 100 years.
Functional Diagram
CS SCL SDA INTERFACE LOGIC 32 BYTE SerialFlash ARRAY ARRAY 1 (PASSWORD PROTECTED) CHIP ENABLE DATA TRANSFER ARRAY ACCESS ENABLE 8K BYTE SerialFlash ARRAY ARRAY 0 (PASSWORD PROTECTED)
PASSWORD ARRAY AND PASSWORD VERIFICATION LOGIC RST RESET RESPONSE REGISTER
RETRY COUNTER
7025 FM 01
(c)Xicor, Inc. 1994, 1995, 1996 Patents Pending 7025-1.4 3/24/97 T2/C0/D1 SH
1
Characteristics subject to change without notice
X76F640
PIN DESCRIPTIONS Serial Clock (SCL) The SCL input is used to clock all data into and out of the device. Serial Data (SDA) SDA is a true three state serial data input/output pin. During a read cycle, data is shifted out on this pin. During a write cycle, data is shifted in on this pin. In all other cases, this pin is in a high impedance state. Chip Enable (CS) When CS is high, the X76F640 is deselected and the SDA pin is at high impedance and unless an internal write operation is underway, the X76F640 will be in standby mode. CS low enables the X76F640, placing it in the active mode. Reset (RST) RST is a device reset pin. When RST is pulsed high while CS is low the X76F640 will output 32 bits of fixed data which conforms to the standard for "synchronous response to reset". CS must remain LOW and the part must not be in a write cycle for the response to reset to occur. See Figure 11. If at any time during the response to reset CS goes HIGH, the response to reset will be aborted and the part will return to the standby state. The response to reset is "mask programmable" only! DEVICE OPERATION There are two primary modes of operation for the X76F640; Protected READ and protected WRITE. Protected operations must be performed with one of four 8-byte passwords. The basic method of communication for the device is established by first enabling the device (CS LOW), generating a start condition, then transmitting a command, followed by the correct password. All parts will be shipped from the factory with all passwords equal to `0'. The user must perform ACK Polling to determine the validity of the password, before starting a data transfer (see Acknowledge Polling.) Only after the correct password is accepted and a ACK polling has been performed, can the data transfer occur. To ensure the correct communication, RST must remain LOW under all conditions except when running a "Response to Reset sequence".
SOIC VSS CS SDA NC 1 2 3 4 8 7 6 5 VCC RST SCL NC VCC RST SCL NC GND CS SDA NC
Data is transferred in 8-bit segments, with each transfer being followed by an ACK, generated by the receiving device. If the X76F640 is in a nonvolatile write cycle a "no ACK" (SDA=High) response will be issued in response to loading of the command byte. If a stop is issued prior to the nonvolatile write cycle the write operation will be terminated and the part will reset and enter into a standby mode. The basic sequence is illustrated in Figure 1. PIN NAMES Symbol CS SDA SCL RST Vcc Vss NC Description Chip Select Input Serial Data Input/Output Serial Clock Input Reset Input Supply Voltage Ground No Connect
7025 FM T01
PIN CONFIGURATION
Smart Card
7025 FM 02
After each transaction is completed, the X76F640 will reset and enter into a standby mode. This will also be the response if an unsuccessful attempt is made to access a protected array.
2
X76F640
Figure 1. X76F640 Device Operation
LOAD COMMAND BYTE
LOAD 8-BYTE PASSWORD
Start Condition All commands are preceeded by the start condition, which is a HIGH to LOW transition of SDA when SCL is HIGH. The X76F640 continuously monitors the SDA and SCL lines for the start condition and will not respond to any command until this condition is met. A start may be issued to terminate the input of a control byte or the input data to be written. This will reset the device and leave it ready to begin a new read or write command. Because of the push/pull output, a start cannot be generated while the part is outputting data. Starts are inhibited while a write is in progress. Stop Condition All communications must be terminated by a stop condition. The stop condition is a LOW to HIGH transition of SDA when SCL is HIGH. The stop condition is also used to reset the device during a command or data input sequence and will leave the device in the standby power mode. As with starts, stops are inhibited when outputting data and while a write is in progress. Acknowledge Acknowledge is a software convention used to indicate successful data transfer. The transmitting device, either master or slave, will release the bus after transmitting eight bits. During the ninth clock cycle the receiver will pull the SDA line LOW to acknowledge that it received the eight bits of data. The X76F640 will respond with an acknowledge after recognition of a start condition and its slave address. If both the device and a write condition have been selected, the X76F640 will respond with an acknowledge after the receipt of each subsequent eight-bit word. Reset Device Command The reset device command is used to clear the retry counter and reactivate the device. When the reset device command is used prior to the retry counter overflow, the retry counter is reset and no arrays or passwords are affected. If the retry counter has overflowed, all memory areas are cleared and all commands are blocked and the retry counter is disabled. Issuing a valid reset device command (with reset password) to the device resets and re-enables the retry counter and re-enables the other commands. Again, the passwords are not affected. Reset Password Command A reset password command will clear both arrays and set all passwords to all zero.
VERIFY PASSWORD ACCEPTANCE BY USE OF PASSWORD ACK POLLING
LOAD 2 BYTE ADDRESS
READ/WRITE DATA BYTES
Twc OR DATA ACK POLLING
7025 FM 03
Retry Counter The X76F640 contains a retry counter. The retry counter allows 8 accesses with an invalid password before any action is taken. The counter will increment with any combination of incorrect passwords. If the retry counter overflows, all memory areas are cleared and the device is locked by preventing any read or write array password matches. The passwords are unaffected. If a correct password is received prior to retry counter overflow, the retry counter is reset and access is granted. In order to reset the operation of a locked up device, a special reset command must be used with a RESET password. Device Protocol The X76F640 supports a bidirectional bus oriented protocol. The protocol defines any device that sends data onto the bus as a transmitter and the receiving device as a receiver. The device controlling the transfer is a master and the device being controlled is the slave. The master will always initiate data transfers and provide the clock for both transmit and receive operations. Therefore, the X76F640 will be considered a slave in all applications. Clock and Data Conventions Data states on the SDA line can change only during SCL LOW. SDA changes during SCL HIGH are reserved for indicating start and stop conditions. Refer to Figure 2 and Figure 3.
3
X76F640
Figure 2. Data Validity
SCL
SDA Data Stable Data Change
7025 FM 04
Figure 3. Definition of Start and Stop Conditions
SCL
SDA
Start Condition
Stop Condition
7025 FM 05
Table 1. X76F640 Instruction Set 1st Byte after Start
1000 0000 1000 1000 1001 0000 1001 1000 1010 0000 1010 1000 1011 0000 1011 1000 1100 0000 1110 0000 1110 1000 1111 0000
1st Byte after Password
High Address High Address High Address High Address 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 not used not used not used All the rest
2nd Byte after Password
Low address Low address Low address Low address 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 not used not used not used
Command Description
Read (Array 0) Read (Array 1) Sector Write (Array 0) Sector Write (Array 1) Change Read 0 Password Change Read 1 Password Change Write 0 Password Change Write 1 Password Change Reset Password Reset Password Command Reset Device Command ACK Polling command (Ends Password operation) Reserved
Password used
Read 0 Read 1 Write 0 Write 1 Read 0 Read 1 Write 0 Write 1 Reset Reset Reset None
7025 FM T04
Notes: Illegal command codes will be disregarded. The part will respond with a "no-ACK" to the illegal byte and then return to the standby mode. All write/read operations require a password.
4
X76F640
PROGRAM OPERATIONS Sector Programming The sector program mode requires issuing the 8-bit write command followed by the password, password Ack command, the address and then the data bytes transferred as illustrated in figure 4. Up to 32 bytes may be transferred. After the last byte to be transferred is acknowledged a stop condition is issued which starts the nonvolatile write cycle. Figure 4. Sector Programming
START
COMMAND
Write Password 7
Write Password 0
SDA S ACK ACK ACK ACK
Wait tWC OR Repeated ACK Polling Command
If ACK, Then Password Matches START ACK POLLING COMMAND A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 Data 0
S ACK ACK NACK ACK ACK Wait tWC Data ACK Polling
...
Data 31 STOP S ACK ACK
7025 FM 07
5
X76F640
ACK Polling Once a stop condition is issued to indicate the end of the host's write sequence, the X76F640 initiates the internal nonvolatile write cycle. In order to take advantage of the typical 5ms write cycle, ACK polling can begin immediately. This involves issuing the start condition followed by the new command code of 8 bits (1st byte of the protocol.) If the X76F640 is still busy with the nonvolatile write operation, it will issue a "no-ACK" in response. If the nonvolatile write operation has completed, an "ACK" will be returned and the host can then proceed with the rest of the protocol. Data ACK Polling Sequence
WRITE SEQUENCE COMPLETED ENTER ACK POLLING ISSUE PASSWORD ACK COMMAND
requires the master to perform an ACK polling with the specific code of F0h. As with regular Acknowledge polling the user can either time out for 10ms, and then issue the ACK polling once, or continuously loop as described in the flow. Password ACK Polling Sequence
PASSWORD LOAD COMPLETED ENTER ACK POLLING
ISSUE START
ISSUE START ACK RETURNED? ISSUE NEW COMMAND CODE YES PROCEED ACK RETURNED? YES PROCEED
7025 FM 08
NO
NO
7025 FM 09
If the password that was inserted was correct, then an "ACK" will be returned once the nonvolatile cycle is over, in response to the ACK polling cycle immediately following it. If the password that was inserted was incorrect, then a "no ACK" will be returned even if the nonvolatile cycle is over. Therefore, the user cannot be certain that the password is incorrect until the 10ms write cycle time has elapsed.
After the password sequence, there is always a nonvolatile write cycle. This is done to discourage random guesses of the password if the device is being tampered with. In order to continue the transaction, the X76F640
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X76F640
Figure 5. Acknowledge Polling
SCL
8th clk. of 8th pwd. byte
`ACK' clk
8th clk
`ACK' clk
SDA
`ACK' START condition
8th bit ACK or no ACK
7025 FM 10
READ OPERATIONS Read operations are initiated in the same manner as write operations but with a different command code. Random Read The master issues the start condition and a Read instruction and password, performs a Password Ack Polling, then issues the word address. Once the password has been acknowledged and first byte has been read, another start can be issued followed by a new 8-bit address. Random reads are allowed, but only the low order 8 bits can change. This limits random reads to a 256 byte block. Therefore, with a single password cycle only a 256 byte block of array 0 may be accessed randomly. To randomly access another block of array 0, a stop must be issued followed by a new command/address/password sequence. A random read of the array 1 can access all locations without another password command sequence. Figure 6. Random Read
START Read Password 7
Sequential Read The host can read sequentially within an array after the password acceptance sequence. The data output is sequential, with the data from address n followed by the data from n+1. The address counter for read operations increments all address bits, allowing the entire memory array contents to be serially read during one operation. At the end of the address space (address 1FFFh for array 0, 1Fh for array 1), the counter "rolls over" to address 0 and the X76F640 continues to output data for each acknowledge received. Refer to figure 7 for the address, acknowledge and data transfer sequence. An acknowledge must follow each 8-bit data transfer. After the last bit has been read, a stop condition is generated without a preceding acknowledge.
COMMAND
Read Password 0
SDA S ACK ACK ACK ACK
Wait tWC OR Repeated ACK Polling Command
If ACK, then Password Matches START A7 A6 A5 A4 A3 A2 A1 A0 START A15 A14 A13 A12 A11 A10 A9 A8 STOP S ACK Data Y
7025 FM 11
ACK POLLING COMMAND
S NACK ACK ACK ACK Data X
A7 A6 A5 A4 A3 A2 A1 A0
S
7
X76F640
Figure 7. Sequential Read
START Read Password 7 Read Password 0 Wait tWC OR Repeated ACK Polling Command
COMMAND
SDA S ACK ACK ACK ACK
If ACK, then Password Matches START ACK POLLING COMMAND ACK A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 STOP S ACK ACK ACK Data 0 Data X
7025 FM 12
S NACK
PASSWORDS The sequence in Figure 8 shows how to change (program) the passwords. The programming of passwords is done twice prior to the nonvolatile write cycle in order to verify that the new password is consistent. After the eight bytes are entered in the second pass, a comparison takes place. A mismatch will cause the part to reset and enter into the standby mode. Data ACK polling can be used to determine if a password has been loaded correctly, however the data ACK command must be issued less than 2ms after the stop bit. Figure 8. Change Passwords
START COMMAND Old Password 7
After this time, it cannot be determined if the password has been loaded correctly, without trying the new password. To determine if the new password has been loaded correctly the data ACK polling command is issued immediately following the stop bit. If it returns an ACK, then the two passes of the new password entry do not match. If it returns a "no ACK" then the passwords match and a high voltage cycle is in progress. The high voltage cycle is complete when a subsequent data ACK command returns an "ACK". There is no way to read any of the passwords.
Old Password 0
ACK ACK ACK New Password 7
SDA S ACK ACK ACK
Wait tWC OR Repeated ACK Polling Command
START
If ACK, then Password Matches
ACK POLLING COMMAND
Two bytes of "0" ACK ACK
S NACK ACK STOP S ACK ACK ACK ACK ACK Data ACK Polling If immediate ACK, then New Password error If immediate NACK, followed by ACK after ~5ms then New Password OK
7025 FM 13
New Password 0
New Password 7
Password 0
8
X76F640
Figure 9. Reset Password
Wait tWC OR Repeated ACK Polling Command If ACK, then Device reset START ACK POLLING COMMAND STOP S ACK
7025 FM 14
START
Reset Password COMMAND
Reset Password 7
Reset Password 0
SDA S ACK ACK ACK ACK NACK
S
Figure 10. Reset Device
Wait tWC OR Repeated ACK Polling Command If ACK, then Device reset ACK POLLING COMMAND STOP S ACK
7025 FM 15 7025 FM 16
START
Reset Device COMMAND
SDA S ACK ACK ACK ACK NACK
Figure 11. Response to RESET (RST)
CS
RST
SCK
SO
33222222 10987654
22221111 32109876
11111198 543210
START S
Reset Password 7
Reset Password 0
76543210
ABSOLUTE MAXIMUM RATINGS* Temperature under Bias ......................-65C to +135C Storage Temperature ...........................-65C to +150C Voltage on any Pin with Respect to VSS ......................................-1V to +7V D.C. Output Current..................................................5mA Lead Temperature (Soldering, 10 seconds)................................. 300C
*COMMENT Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and the functional operation of the device at these or any other conditions above those listed 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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X76F640
RECOMMENDED OPERATING CONDITIONS Temp
Commercial Extended
Min.
0C -20C
Max.
+70C +85C
7025 FM T05
Supply Voltage
X76F640 X76F640 - 2.7
Limits
4.5V to 5.5V 2.7V to 3.6V
7025 FM T06
D.C. OPERATING CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified.) Symbol
ICC1
Parameter
VCC Supply Current (Read) VCC Supply Current (Write) VCC Supply Current (Standby) VCC Supply Current (Standby) Input Leakage Current Output Leakage Current Input LOW Voltage Input HIGH Voltage Input LOW Voltage Input HIGH Voltage Output LOW Voltage
Limits Min. Max.
1
Units
mA
Test Conditions
fSCL = VCC x 0.1/VCC x 0.9 Levels @ 400 KHz, SDA = Open RST = CS = VSS fSCL = VCC x 0.1/VCC x 0.9 Levels @ 400 KHz, SDA = Open RST = CS = VSS VIL = VCC x 0.1, VIH = VCC x 0.9 fSCL = 400 KHz, fSDA = 400 KHz VSDA = VSCC = VCC Other = GND or VCC-0.3V VIN = VSS to VCC VOUT = VSS to VCC VCC = 5.5V VCC = 5.5V VCC = 3.0V VCC = 3.0V IOL = 3mA
7002 FM T07
ICC2(3) ISB1(1) ISB2(1) ILI ILO VIL1(2) VIH1(2) VIL2(2) VIH2(2) VOL
3
mA A A A A V V V V V
50 1 10 10 -0.5 VCC x 0.3
VCC x 0.7 VCC + 0.5 -0.5 VCC x 0.1
VCC x 0.9 VCC + 0.5 0.4
CAPACITANCE TA = +25C, f = 1MHz, VCC = 5V Symbol
COUT(3) CIN(3)
Test
Output Capacitance (SDA) Input Capacitance (RST, SCL, CS)
Max.
8 6
Units
pF pF
Conditions
VI/O = 0V VIN = 0V
7002 FM T08
NOTES: (1) Must perform a stop command after a read command prior to measurement (2) VIL min. and VIH max. are for reference only and are not tested. (3) This parameter is periodically sampled and not 100% tested.
EQUIVALENT A.C. LOAD CIRCUIT
5V 1533 OUTPUT 100pF OUTPUT 100pF
7025 FM 17
A.C. TEST CONDITIONS
Input Pulse Levels
3V 1.3K
VCC x 0.1 to VCC x 0.9 10ns VCC x 0.5 100pF
7002 FM T09
Input Rise and Fall Times Input and Output Timing Level Output Load
10
X76F640
AC CHARACTERISTICS AC Specifications (Over the recommended operating conditions) Symbol
fSCL tIN(1) tAA tBUF tLOW tHIGH tSU:STA tHD:STA tSU:DAT tHD:DAT tSU:STO tDH tR tF tSU:CS tHD:CS fSCL_RST tSR tNOL tRST tSU:RST tLOW_RST tHIGH_RST tRDV tCDV tDHZ
Parameter
SCL Clock Frequency Pulse width of spikes which must be suppressed by the input filter SCL LOW to SDA Data Out Valid Time the bus must be free before a new transmit can start Clock LOW Time Clock HIGH Time Start Condition Setup Time Start Condition Hold Time Data In Setup Time Data In Hold Time Stop Condition Setup Time Data Output Hold Time SDA and SCL Rise Time SDA and SCL Fall Time CS Setup Time CS Hold Time SCL Clock Frequency during Response to Reset Device Select to RST active RST to SCL Non-Overlap RST High Time Response to Reset Setup Time Clock LOW during Response to Reset Clock HIGH during Response to Reset RST LOW to SDA Valid During Response to Reset CLK LOW to SDA Valid During Response to Reset Device Deselect to SDA high impedance
Min
0 50 0.1 1.3 1.3 0.6 0.6 0.6 100 0 0.6 50 20 + 0.1 x Cb(2) 20 + 0.1 x Cb(2) 200 100
Typ(1)
Max
400
Units
KHz ns
100 0.3 0.9
s s s s s s ns s s
300 300 300
ns ns ns ns ns 400 kHz ns ns s s s s 500 500 500 ns ns ns
7025 FM T14
200 500 2.25 1.25 1.25 1.25 0 0 0
Notes: 1. Typical values are for TA = 25C and VCC = 5.0V Notes: 2. Cb = Total Capacitance of one bus line in pf.
11
X76F640
RESET AC SPECIFICATIONS Power Up Timing Symbol
tPUR(1) tPUW(1)
Parameter
Time from Power Up to Read Time from Power Up to Write
Min.
Typ(2)
Max.
1 5
Units
mS mS
7025 FM T11
Notes: 1. Delays are measured from the time VCC is stable until the specified operation can be initiated. These parameters are periodically sampled and not 100% tested. 2. Typical values are for TA = 25C and VCC = 5.0V
Nonvolatile Write Cycle Timing Symbol
tWC(1)
Parameter
Write Cycle Time
Min.
Typ.(1)
5
Max.
10
Units
mS
7025 FM T12
Notes: 1. tWC is the time from a valid stop condition at the end of a write sequence to the end of the self-timed internal nonvolatile write cycle. It is the minimum cycle time to be allowed for any nonvolatile write by the user, unless Acknowledge Polling is used.
TIMING DIAGRAMS Bus Timing
tR SCL tSU:STA SDA IN tHD:STA tF tSU:DAT tHD:DAT tSU:STO tHIGH tLOW
tAA SDA OUT
tDH
tBUF
7025 FM 18
Write Cycle Timing
SCL
SDA
8th bit of last byte
ACK tWC Stop Condition Start Condition
7025 FM 19
12
X76F640
CS Timing Diagram (Selecting/Deselecting the Part)
SCL tSU:CS CS from master tHD:CS
7025 FM 20
RST Timing Diagram - Response to a Synchronous Reset
tSR
CS
RST
tRST tNOL tNOL
1st clk pulse
tHIGH_RST
2nd clk pulse
CLK
tRDV
I/O
tSU:RST
DATA BIT (1)
tCDV
tLOW_RST
DATA BIT (2)
3rd clk pulse
CS
RST
CLK
tDHZ
I/O DATA BIT (N) DATA BIT (N+1) (N+2)
7025 FM 21
GUIDELINES FOR CALCULATING TYPICAL VALUES OF BUS PULL UP RESISTORS
100 80 60 40 20
Pull Up Resistance in K
RMAX
V CCMAX R MIN = ------------------------- = 1.8K I OLMIN
RMIN
20 40 60 80 100 Bus capacitance in pF
tR R MAX = ----------------C BUS
tR = maximum allowable SDA rise time
7025 FM 22
13
X76F640
8-LEAD PLASTIC, 0.200" WIDE SMALL OUTLINE GULLWING PACKAGE TYP "A" (EIAJ SOIC)
0.020 (.508) 0.012 (.305)
.213 (5.41) .205 (5.21)
.330 (8.38) .300 (7.62)
PIN 1 ID
.050 (1.27) BSC
.212 (5.38) .203 (5.16)
.080 (2.03) .070 (1.78) .013 (.330) .004 (.102)
0 8
REF .010 (.254) .007 (.178)
.035 (.889) .020 (.508)
NOTE: 1. ALL DIMENSIONS IN INCHES (INARENTHESES IN MILLIMETERS) P 2. PACKAGE DIMENSIONS EXCLUDE MOLDING FLASH
7025 FM 24
14
X76F640
8 PAD CHIP ON BOARD SMART CARD MODULE TYPE X
0.465 0.002 (11.81 0.05) 0.088 (2.24) MIN EPOXY FREE AREA (TYP.) 0.285 (7.24) MAX.
R. 0.039 (1.00) (4X)
0.069 (1.75) MIN EPOXY FREE AREA (TYP.)
0.270 (6.86) MAX. 0.420 0.002 (10.67 0.05)
A
A
0.008 0.001 (0.20 0.03)
0.210 0.002 (5.33 0.05)
0.233 0.002 (5.92 0.05)
SECTION A-A
FR4 TAPE
DIE GLOB SIZE
0.0235 (0.60) MAX. 0.015 (0.38) MAX. 0.008 (0.20) MAX.
COPPER, NICKEL PLATED, GOLD FLASH
0.146 0.002 (3.71 0.05)
0.174 0.002 (4.42 0.05) R. 0.013 (0.33) (8x)
0.105 0.002 (2.67 0.05) TYP.
(8x)
0.105 0.002 (8x) (2.67 0.05)
NOTE: 1. ALL DIMENSIONS IN INCHES AND (MILLIMETERS)
3003 ILL 03.1
15
X76F640
SMART CARD TYPE Y
3 MAX. DRAFT ANGLE (ALL AROUND) 0.593 0.002 (15.06 0.05) R. 0.125 (3.18) (4x)
3.369 0.002 (85.57 0.05)
0.430 0.002 (10.92 0.05)
A
0.475 0.010 (12.07 0.25) 2.125 0.002 (53.98 0.05)
A
R. 0.030 (0.76) (4x)
0.31 0.0005 (.079 0.0127)
0.478 0.002 (12.14 0.05)
MOLD GATE DETAIL SECTION A-A
SCALE: 5x NOTES: 1. ALL DIMENSIONS ARE IN INCHES AND (MILLIMETERS). 2. MATERIAL: WHITE PVC MOLDED PLASTIC WITH ANTI-STATIC ADDITIVE. 3. SURFACE FINISH SUITABLE FOR OFFSET PRINTING.
3003 ILL 02.1
16
X76F640
ORDERING INFORMATION
X76F640 Device
X
X
-X VCC Limits Blank = 5V 10% 2.7 = 2.7V to 3.6V Temperature Range Blank = Commercial = 0C to +70C E = Extended = -20C to +85C Package A = 8-Lead SOIC (EIAJ) H = Die in Waffle Packs W = Die in Wafer Form X = Smart Card Module Y = Smart Card
LIMITED WARRANTY Devices sold by Xicor, Inc. are covered by the warranty and patent indemnification provisions appearing in its Terms of Sale only. Xicor, Inc. makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. Xicor, Inc. makes no warranty of merchantability or fitness for any purpose. Xicor, Inc. reserves the right to discontinue production and change specifications and prices at any time and without notice. Xicor, Inc. assumes no responsibility for the use of any circuitry other than circuitry embodied in a Xicor, Inc. product. No other circuits, patents, licenses are implied. U.S. PATENTS Xicor products are covered by one or more of the following U.S. Patents: 4,263,664; 4,274,012; 4,300,212; 4,314,265; 4,326,134; 4,393,481; 4,404,475; 4,450,402; 4,486,769; 4,488,060; 4,520,461; 4,533,846; 4,599,706; 4,617,652; 4,668,932; 4,752,912; 4,829, 482; 4,874, 967; 4,883, 976. Foreign patents and additional patents pending. LIFE RELATED POLICY In situations where semiconductor component failure may endanger life, system designers using this product should design the system with appropriate error detection and correction, redundancy and back-up features to prevent such an occurence. Xicor's products are not authorized for use in critical components in life support devices or systems. 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
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