AT25128N-10SA-5.0C [ETC]

SERIAL EEPROM|16KX8|CMOS|SOP|8PIN|PLASTIC ; 串行EEPROM | 16KX8 | CMOS |专科| 8PIN |塑料\n
AT25128N-10SA-5.0C
型号: AT25128N-10SA-5.0C
厂家: ETC    ETC
描述:

SERIAL EEPROM|16KX8|CMOS|SOP|8PIN|PLASTIC
串行EEPROM | 16KX8 | CMOS |专科| 8PIN |塑料\n

可编程只读存储器 电动程控只读存储器 电可擦编程只读存储器
文件: 总18页 (文件大小:272K)
中文:  中文翻译
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Features  
Serial Peripheral Interface (SPI) Compatible  
Supports SPI Modes 0 (0,0) and 3 (1,1)  
Medium-voltage and Standard-voltage Operation  
– 5.0 (VCC = 4.5V to 5.5V)  
– 2.7 (VCC = 2.7V to 5.5V)  
3 MHz Clock Rate  
64-byte Page Mode and Byte Write Operation  
Block Write Protection  
– Protect 1/4, 1/2, or Entire Array  
Write Protect (WP) Pin and Write Disable Instructions for  
both Hardware and Software Data Protection  
Self-timed Write Cycle (5 ms Typical)  
High-reliability  
– Endurance: 100,000 Write Cycles  
– Data Retention: >200 Years  
8-pin PDIP, 8-pin JEDEC SOIC and 8-pin EIAJ SOIC Packages  
SPI Serial  
Automotive  
EEPROMs  
128K (16,384 x 8)  
256K (32,768 x 8)  
Description  
The AT25128/256 provides 131,072/262,144 bits of serial electrically-erasable pro-  
grammable read only memory (EEPROM) organized as 16,384/32,768 words of 8 bits  
each. The device is optimized for use in many industrial and commercial applications  
where low-power and low-voltage operation are essential. The devices are available in  
space saving 8-pin PDIP (AT25128/256), 8-pin JEDEC SOIC (AT25128) and 8-pin  
EIAJ SOIC (AT25256) packages. In addition, the entire family is available in 5.0V  
AT25128  
AT25256  
(4.5V to 5.5V) and 2.7V (2.7V to 5.5V) versions.  
Continued  
Pin Configurations  
8-pin PDIP  
Pin Name  
Function  
CS  
Chip Select  
CS  
SO  
1
2
3
4
8
7
6
5
VCC  
HOLD  
SCK  
SI  
SCK  
SI  
Serial Data Clock  
Serial Data Input  
Serial Data Output  
Ground  
WP  
GND  
SO  
GND  
VCC  
WP  
8-pin SOIC  
Power Supply  
Write Protect  
Suspends Serial Input  
No Connect  
CS  
SO  
1
2
3
4
8
7
6
5
VCC  
HOLD  
SCK  
SI  
WP  
HOLD  
NC  
GND  
DC  
Don't Connect  
Rev. 3262A–SEEPR–02/02  
The AT25128/256 is enabled through the Chip Select pin (CS) and accessed via a 3-wire interface consisting of Serial Data  
Input (SI), Serial Data Output (SO), and Serial Clock (SCK). All programming cycles are completely self-timed, and no sep-  
arate ERASE cycle is required before WRITE.  
BLOCK WRITE protection is enabled by programming the status register with top ¼, top ½ or entire array of write protec-  
tion. Separate program enable and program disable instructions are provided for additional data protection. Hardware data  
protection is provided via the WP pin to protect against inadvertent write attempts to the status register. The HOLD pin may  
be used to suspend any serial communication without resetting the serial sequence.  
Absolute Maximum Ratings*  
Operating Temperature.................................. -55°C to +125°C  
*NOTICE:  
Stresses beyond those listed under “Absolute Maxi-  
mum 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 condi-  
tions beyond those indicated in the operational sec-  
tions of this specification is not implied. Exposure to  
absolute maximum rating conditions for extended  
periods may affect device reliability.  
Storage Temperature ..................................... -65°C to +150°C  
Voltage on Any Pin  
with Respect to Ground .....................................-1.0V to +7.0V  
Maximum Operating Voltage .......................................... 6.25V  
DC Output Current........................................................ 5.0 mA  
Block Diagram  
16384/32768x8  
2
AT25128/256  
3262A–SEEPR–02/02  
AT25128/256  
Pin Capacitance(1)  
Applicable over recommended operating range from TA = 25°C, f = 1.0 MHz, VCC = +5.0V (unless otherwise noted).  
Symbol  
COUT  
CIN  
Test Conditions  
Max  
8
Units  
pF  
Conditions  
VOUT = 0V  
VIN = 0V  
Output Capacitance (SO)  
Input Capacitance (CS, SCK, SI, WP, HOLD)  
6
pF  
Note:  
1. This parameter is characterized and is not 100% tested.  
DC Characteristics  
Applicable over recommended operating range from TA = -40°C to +125°C, VCC = +2.7V to +5.5V  
Symbol  
VCC1  
Parameter  
Test Condition  
Min  
2.7  
4.5  
Typ  
Max  
5.5  
5.5  
3.0  
Units  
V
Supply Voltage  
Supply Voltage  
Supply Current  
VCC2  
V
ICC1  
VCC = 5.0V at 1 MHz, SO = Open, Read  
2.0  
3.0  
mA  
VCC = 5.0V at 2 MHz,  
SO = Open, Read, Write  
ICC2  
Supply Current  
5.0  
mA  
ISB1  
ISB2  
IIL  
Standby Current  
Standby Current  
Input Leakage  
VCC = 2.7V, CS = VCC  
VCC = 5.0V, CS = VCC  
VIN = 0V to VCC  
0.2  
2.0  
2.0  
5.0  
µA  
µA  
µA  
µA  
V
-3.0  
-3.0  
3.0  
IOL  
Output Leakage  
Input Low-voltage  
Input High-voltage  
Output Low-voltage  
Output High-voltage  
VIN = 0V to VCC  
3.0  
(1)  
VIL  
-1.0  
VCC x 0.3  
VCC + 0.5  
0.4  
(1)  
VIH  
VCC x 0.7  
V
VOL1  
VOH1  
I
OL = 3.0 mA  
V
4.5 VCC 5.5V  
IOH = -1.6 mA  
VCC - 0.8  
V
Note:  
1. VIL and VIH max are reference only and are not tested.  
3
3262A–SEEPR–02/02  
AC Characteristics  
Applicable over recommended operating range from TA = -40°C to +125°C, VCC = As Specified,  
CL = 1 TTL Gate and 100 pF (unless otherwise noted).  
Symbol  
Parameter  
Voltage  
Min  
Max  
Units  
4.5 - 5.5  
2.7 - 5.5  
0
0
3.0  
2.1  
fSCK  
SCK Clock Frequency  
MHz  
4.5 - 5.5  
2.7 - 5.5  
2
2
tRI  
Input Rise Time  
Input Fall Time  
µs  
µs  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
4.5 - 5.5  
2.7 - 5.5  
2
2
tFI  
4.5 - 5.5  
2.7 - 5.5  
150  
200  
tWH  
tWL  
tCS  
tCSS  
tCSH  
tSU  
tH  
SCK High Time  
SCK Low Time  
4.5 - 5.5  
2.7 - 5.5  
150  
200  
4.5 - 5.5  
2.7 - 5.5  
250  
250  
CS High Time  
4.5 - 5.5  
2.7 - 5.5  
100  
250  
CS Setup Time  
CS Hold Time  
4.5 - 5.5  
2.7 - 5.5  
150  
250  
4.5 - 5.5  
2.7 - 5.5  
30  
50  
Data In Setup Time  
Data In Hold Time  
Hold Setup Time  
Hold Hold Time  
Output Valid  
4.5 - 5.5  
2.7 - 5.5  
50  
50  
4.5 - 5.5  
2.7 - 5.5  
100  
100  
tHD  
tCD  
tV  
4.5 - 5.5  
2.7 - 5.5  
200  
300  
4.5 - 5.5  
2.7 - 5.5  
0
0
150  
200  
4.5 - 5.5  
2.7 - 5.5  
0
0
tHO  
Output Hold Time  
Hold to Output Low Z  
Hold to Output High Z  
Output Disable Time  
4.5 - 5.5  
2.7 - 5.5  
0
0
100  
200  
tLZ  
tHZ  
4.5 - 5.5  
2.7 - 5.5  
100  
200  
4.5 - 5.5  
2.7 - 5.5  
200  
250  
tDIS  
4.5 - 5.5  
2.7 - 5.5  
5
10  
tWC  
Write Cycle Time  
ms  
Endurance(1)  
5.0V, 25°C, Page Mode  
100K  
Write Cycles  
Note:  
1. This parameter is characterized and is not 100% tested. Contact Atmel for further information.  
4
AT25128/256  
3262A–SEEPR–02/02  
AT25128/256  
Serial Interface  
Description  
MASTER: The device that generates the serial clock.  
SLAVE: Because the Serial Clock pin (SCK) is always an input, the AT25128/256  
always operates as a slave.  
TRANSMITTER/RECEIVER: The AT25128/256 has separate pins designated for data  
transmission (SO) and reception (SI).  
MSB: The Most Significant Bit (MSB) is the first bit transmitted and received.  
SERIAL OP-CODE: After the device is selected with CS going low, the first byte will  
be received. This byte contains the op-code that defines the operations to be performed.  
INVALID OP-CODE: If an invalid op-code is received, no data will be shifted into the  
AT25128/256, and the serial output pin (SO) will remain in a high impedance state until  
the falling edge of CS is detected again. This will reinitialize the serial communication.  
CHIP SELECT: The AT25128/256 is selected when the CS pin is low. When the device  
is not selected, data will not be accepted via the SI pin, and the serial output pin (SO)  
will remain in a high impedance state.  
HOLD: The HOLD pin is used in conjunction with the CS pin to select the AT25128/256.  
When the device is selected and a serial sequence is underway, HOLD can be used to  
pause the serial communication with the master device without resetting the serial  
sequence. To pause, the HOLD pin must be brought low while the SCK pin is low. To  
resume serial communication, the HOLD pin is brought high while the SCK pin is low  
(SCK may still toggle during HOLD). Inputs to the SI pin will be ignored while the SO pin  
is in the high impedance state.  
WRITE PROTECT: The write protect pin (WP) will allow normal read/write operations  
when held high. When the WP pin is brought low and WPEN bit is “1”, all write opera-  
tions to the status register are inhibited. WP going low while CS is still low will interrupt a  
write to the status register. If the internal write cycle has already been initiated, WP  
going low will have no effect on any write operation to the status register. The WP pin  
function is blocked when the WPEN bit in the status register is “0”. This will allow the  
user to install the AT25128/256 in a system with the WP pin tied to ground and still be  
able to write to the status register. All WP pin functions are enabled when the WPEN bit  
is set to “1”.  
5
3262A–SEEPR–02/02  
SPI Serial Interface  
AT25128/256  
Functional  
Description  
The AT25128/256 is designed to interface directly with the synchronous serial periph-  
eral interface (SPI) of the 6800 type series of microcontrollers.  
The AT25128/256 utilizes an 8-bit instruction register. The list of instructions and their  
operation codes are contained in Table 1. All instructions, addresses, and data are  
transferred with the MSB first and start with a high-to-low CS transition..  
Table 1. Instruction Set for the AT25128/256  
Instruction Name  
WREN  
Instruction Format  
0000 X110  
Operation  
Set Write Enable Latch  
Reset Write Enable Latch  
Read Status Register  
Write Status Register  
Read Data from Memory Array  
Write Data to Memory Array  
WRDI  
0000 X100  
RDSR  
0000 X101  
WRSR  
0000 X001  
READ  
0000 X011  
WRITE  
0000 X010  
6
AT25128/256  
3262A–SEEPR–02/02  
AT25128/256  
WRITE ENABLE (WREN): The device will power-up in the write disable state when VCC  
is applied. All programming instructions must therefore be preceded by a Write Enable  
instruction.  
WRITE DISABLE (WRDI): To protect the device against inadvertent writes, the Write  
Disable instruction disables all programming modes. The WRDI instruction is indepen-  
dent of the status of the WP pin.  
READ STATUS REGISTER (RDSR): The Read Status Register instruction provides  
access to the status register. The READY/BUSY and Write Enable status of the device  
can be determined by the RDSR instruction. Similarly, the Block Write Protection  
bits indicate the extent of protection employed. These bits are set by using the WRSR  
instruction  
.
Table 2. Status Register Format  
Bit 7  
Bit 6  
Bit 5  
Bit 4  
Bit 3  
Bit 2  
Bit 1  
Bit 0  
WPEN  
X
X
X
BP1  
BP0  
WEN  
RDY  
Table 3. Read Status Register Bit Definition  
Bit  
Definition  
Bit 0 (RDY)  
Bit 0 = 0 (RDY) indicates the device is READY.  
Bit 0 = 1 indicates the write cycle is in progress.  
Bit 1 (WEN)  
Bit 1 = 0 indicates the device is not WRITE ENABLED. Bit 1 = 1 indicates  
the device is WRITE ENABLED.  
Bit 2 (BP0)  
Bit 3 (BP1)  
See Table 4.  
See Table 4.  
Bits 4 - 6 are 0s when device is not in an internal write cycle.  
Bit 7 (WPEN) See Table 5.  
Bits 0 - 7 are 1s during an internal write cycle.  
WRITE STATUS REGISTER (WRSR): The WRSR instruction allows the user to select  
one of four levels of protection. The AT25128/256 is divided into four array segments.  
Top quarter (1/4), top half (1/2), or all of the memory segments can be protected. Any of  
the data within any selected segment will therefore be READ only. The block write pro-  
tection levels and corresponding status register control bits are shown in Table 4.  
The three bits, BP0, BP1, and WPEN are nonvolatile cells that have the same properties  
and functions as the regular memory cells (e.g. WREN, tWC, RDSR).  
Table 4. Block Write Protect Bits  
Status Register Bits  
Array Addresses Protected  
Level  
0
BP1  
BP0  
AT25128  
None  
AT25256  
None  
0
0
1
1
0
1
0
1
1(1/4)  
2(1/2)  
3(All)  
3000 - 3FFF  
2000 - 3FFF  
0000 - 3FFF  
6000 - 7FFF  
4000 - 7FFF  
0000 - 7FFF  
7
3262A–SEEPR–02/02  
The WRSR instruction also allows the user to enable or disable the write protect (WP)  
pin through the use of the Write Protect Enable (WPEN) bit. Hardware write protection is  
enabled when the WP pin is low and the WPEN bit is “1”. Hardware write protection is  
disabled when either the WP pin is high or the WPEN bit is “0.” When the device is hard-  
ware write protected, writes to the Status Register, including the Block Protect bits and  
the WPEN bit, and the block-protected sections in the memory array are disabled.  
Writes are only allowed to sections of the memory which are not block-protected.  
NOTE: When the WPEN bit is hardware write protected, it cannot be changed back to  
“0”, as long as the WP pin is held low.  
Table 5. WPEN Operation  
Protected  
Blocks  
Unprotected  
Blocks  
Status  
Register  
WPEN  
WP  
X
WEN  
0
0
1
1
X
X
0
1
0
1
0
1
Protected  
Protected  
Protected  
Protected  
Protected  
Protected  
Protected  
Writable  
Protected  
Writable  
Protected  
Writable  
Protected  
Writable  
X
Low  
Low  
High  
High  
Protected  
Protected  
Protected  
Writable  
READ SEQUENCE (READ): Reading the AT25128/256 via the SO (Serial Output) pin  
requires the following sequence. After the CS line is pulled low to select a device, the  
READ op-code is transmitted via the SI line followed by the byte address to be read  
(Refer to Table 6). Upon completion, any data on the SI line will be ignored. The data  
(D7 - D0) at the specified address is then shifted out onto the SO line. If only one byte is  
to be read, the CS line should be driven high after the data comes out. The READ  
sequence can be continued since the byte address is automatically incremented and  
data will continue to be shifted out. When the highest address is reached, the address  
counter will roll over to the lowest address allowing the entire memory to be read in one  
continuous READ cycle.  
WRITE SEQUENCE (WRITE): In order to program the AT25128/256, two separate  
instructions must be executed. First, the device must be write enabled via the Write  
Enable (WREN) Instruction. Then a Write (WRITE) Instruction may be executed. Also,  
the address of the memory location(s) to be programmed must be outside the protected  
address field location selected by the Block Write Protection Level. During an internal  
write cycle, all commands will be ignored except the RDSR instruction.  
A Write Instruction requires the following sequence. After the CS line is pulled low to  
select the device, the WRITE op-code is transmitted via the SI line followed by the byte  
address and the data (D7 - D0) to be programmed (Refer to Table 6). Programming will  
start after the CS pin is brought high. (The LOW-to-High transition of the CS pin must  
occur during the SCK low time immediately after clocking in the D0 (LSB) data bit.  
The READY/BUSY status of the device can be determined by initiating a READ STA-  
TUS REGISTER (RDSR) Instruction. If Bit 0 = 1, the WRITE cycle is still in progress. If  
Bit 0 = 0, the WRITE cycle has ended. Only the READ STATUS REGISTER instruction  
is enabled during the WRITE programming cycle.  
8
AT25128/256  
3262A–SEEPR–02/02  
AT25128/256  
The AT25128/256 is capable of a 64-byte PAGE WRITE operation. After each byte of  
data is received, the six low order address bits are internally incremented by one; the  
high order bits of the address will remain constant. If more than 64 bytes of data are  
transmitted, the address counter will roll over and the previously written data will be  
overwritten. The AT25128/256 is automatically returned to the write disable state at the  
completion of a WRITE cycle.  
NOTE: If the device is not Write enabled (WREN), the device will ignore the Write  
instruction and will return to the standby state, when CS is brought high. A new CS fall-  
ing edge is required to re-initiate the serial communication.  
Table 6. Address Key  
Address  
AN  
AT25128  
A13 - A0  
A15 - A14  
AT25256  
A14 - A0  
A15  
Don’t Care Bits  
9
3262A–SEEPR–02/02  
Timing Diagrams (for SPI Mode 0 (0, 0))  
Synchronous Data Timing  
tCS  
VIH  
CS  
VIL  
tCSH  
tCSS  
VIH  
tWH  
tWL  
SCK  
VIL  
tSU  
tH  
VIH  
VIL  
SI  
VALID IN  
tHO  
tDIS  
tV  
VOH  
VOL  
HI-Z  
HI-Z  
SO  
WREN Timing  
WRDI Timing  
10  
AT25128/256  
3262A–SEEPR–02/02  
AT25128/256  
RDSR Timing  
CS  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14  
SCK  
SI  
INSTRUCTION  
DATA OUT  
HIGH IMPEDANCE  
7
6
5
4
3
2
1
0
SO  
MSB  
WRSR Timing  
READ Timing  
11  
3262ASEEPR02/02  
WRITE Timing  
HOLD Timing  
CS  
tCD  
tCD  
SCK  
tHD  
tHD  
HOLD  
SO  
tHZ  
tLZ  
12  
AT25128/256  
3262ASEEPR02/02  
AT25128/256  
AT25128 Ordering Information  
tWC (max)  
ICC (max)  
ISB (max)  
fMAX  
(ms)  
(µA)  
(µA)  
(kHz)  
Ordering Code  
Package  
Operation Range  
5
5000  
2000  
5.0  
2.0  
3000  
2100  
AT25128-10PA-5.0C  
AT25128N-10SA-5.0C  
8P3  
8S1  
Automotive  
(-40°C to 125°C)  
10  
AT25128-10PA-2.7C  
AT25128N-10SA-2.7C  
8P3  
8S1  
Automotive  
(-40°C to 125°C)  
Package Type  
8P3  
8-lead, 0.300" Wide, Plastic Dual In-line Package (PDIP)  
8-lead, 0.150" Wide, Plastic Gull Wing Small Outline Package (JEDEC SOIC)  
Options  
8S1  
-5.0  
-2.7  
Standard Device (4.5V to 5.5V)  
Low-voltage (2.7V to 5.5V)  
13  
3262ASEEPR02/02  
AT25256 Ordering Information  
tWC (max)  
ICC (max)  
ISB (max)  
fMAX  
(ms)  
(µA)  
(µA)  
(kHz)  
Ordering Code  
Package  
Operation Range  
5
5000  
2000  
5.0  
2.0  
3000  
2100  
AT25256-10PA-5.0C  
8P3  
8S2  
Automotive  
AT25256W-10SA-5.0C  
(-40°C to 125°C)  
10  
AT25256-10PA-2.7C  
8P3  
8S2  
Automotive  
AT25256W-10SA-2.7C  
(-40°C to 125°C)  
Package Type  
8P3  
8-lead, 0.300" Wide, Plastic Dual In-line Package (PDIP)  
8-lead, 0.200" Wide, Plastic Gull Wing Small Outline Package (EIAJ SOIC)  
Options  
8S2  
-5.0  
-2.7  
Standard Device (4.5V to 5.5V)  
Low-voltage (2.7V to 5.5V)  
14  
AT25128/256  
3262ASEEPR02/02  
AT25128/256  
Packaging Information  
8P3 PDIP  
E
1
E1  
N
Top View  
c
eA  
End View  
COMMON DIMENSIONS  
(Unit of Measure = inches)  
D
e
MIN  
MAX  
NOM  
NOTE  
SYMBOL  
D1  
A2 A  
A
0.210  
0.195  
0.022  
0.070  
0.045  
0.014  
0.400  
2
A2  
b
0.115  
0.014  
0.045  
0.030  
0.008  
0.355  
0.005  
0.300  
0.240  
0.130  
0.018  
0.060  
0.039  
0.010  
0.365  
5
6
6
b2  
b3  
c
D
3
3
4
3
b2  
L
D1  
E
b3  
4 PLCS  
0.310  
0.250  
0.325  
0.280  
b
E1  
e
0.100 BSC  
0.300 BSC  
0.130  
Side View  
eA  
L
4
2
0.115  
0.150  
Notes: 1. This drawing is for general information only; refer to JEDEC Drawing MS-001, Variation BA for additional information.  
2. Dimensions A and L are measured with the package seated in JEDEC seating plane Gauge GS-3.  
3. D, D1 and E1 dimensions do not include mold Flash or protrusions. Mold Flash or protrusions shall not exceed 0.010 inch.  
4. E and eA measured with the leads constrained to be perpendicular to datum.  
5. Pointed or rounded lead tips are preferred to ease insertion.  
6. b2 and b3 maximum dimensions do not include Dambar protrusions. Dambar protrusions shall not exceed 0.010 (0.25 mm).  
01/09/02  
TITLE  
DRAWING NO.  
REV.  
2325 Orchard Parkway  
San Jose, CA 95131  
8P3, 8-lead, 0.300" Wide Body, Plastic Dual  
In-line Package (PDIP)  
8P3  
B
R
15  
3262ASEEPR02/02  
8S1 JEDEC SOIC  
1
3
2
H
N
Top View  
e
B
A
D
COMMON DIMENSIONS  
(Unit of Measure = mm)  
Side View  
MIN  
MAX  
1.75  
0.51  
0.25  
5.00  
4.00  
NOM  
NOTE  
SYMBOL  
A
B
C
D
E
e
A2  
L
1.27 BSC  
E
H
L
6.20  
1.27  
End View  
Note:  
This drawing is for general information only. Refer to JEDEC Drawing MS-012 for proper dimensions, tolerances, datums, etc.  
10/10/01  
TITLE  
DRAWING NO.  
REV.  
2325 Orchard Parkway  
San Jose, CA 95131  
8S1, 8-lead (0.150" Wide Body), Plastic Gull Wing  
8S1  
A
R
Small Outline (JEDEC SOIC)  
16  
AT25128/256  
3262ASEEPR02/02  
AT25128/256  
8S2 EIAJ SOIC  
1
H
N
Top View  
e
b
A2  
D
COMMON DIMENSIONS  
(Unit of Measure = mm)  
Side View  
MIN  
1.01  
0.05  
0.35  
0.10  
MAX  
4.00  
0.25  
0.51  
0.35  
6.05  
6.22  
8.89  
0.80  
NOM  
1.70  
0.15  
NOTE  
SYMBOL  
A2  
A1  
b
A1  
5
5
C
D
E
L
E
5.08  
5.22  
8.42  
5.02  
7.62  
0.25  
2, 3  
4
End View  
H
L
e
1.27 BSC  
Notes: 1. This drawing is for general information only; refer to EIAJ Drawing EDR-7320 for additional information.  
2. Mismatch of the upper and lower dies and resin burrs aren't included.  
3. It is recommended that upper and lower cavities be equal. If they are different, the larger dimension shall be regarded.  
4. Determines the true geometric position.  
5. Values b,C apply to pb/Sn solder plated terminal. The standard thickness of the solder layer shall be 0.010 +0.010/-0.005 mm.  
1/9/02  
TITLE  
DRAWING NO.  
REV.  
8S2, 8-lead, 0.209" Body, Plastic Small  
Outline Package (EIAJ)  
2325 Orchard Parkway  
San Jose, CA 95131  
8S2  
A
R
17  
3262ASEEPR02/02  
Atmel Headquarters  
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Corporate Headquarters  
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TEL 1(408) 441-0311  
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FAX 1(408) 436-4314  
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TEL (81) 3-3523-3551  
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© Atmel Corporation 2002.  
Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Companys standard warranty  
which is detailed in Atmels Terms and Conditions located on the Companys web site. The Company assumes no responsibility for any errors  
which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does  
not make any commitment to update the information contained herein. No licenses to patents or other intellectual property of Atmel are granted  
by the Company in connection with the sale of Atmel products, expressly or by implication. Atmels products are not authorized for use as critical  
components in life support devices or systems.  
ATMEL® is a registered trademark of Atmel.  
Terms and product names in this document may be trademarks of others.  
Printed on recycled paper.  
3262ASEEPR02/02  
xM  

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