, AT25080-160-320-640, Książki, polskie, elektronika i elektrotechnika, Układy scalone - baza, Uklady scalone baza, Baza 

AT25080-160-320-640

AT25080-160-320-640, Książki, polskie, elektronika i elektrotechnika, Układy scalone - baza, Uklady scalone ...
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Features
•
Serial Peripheral Interface (SPI) Compatible
•
Supports SPI Modes 0 (0,0) and 3 (1,1)
•
Low-voltage and Standard-voltage Operation
– 5.0 (V
CC
= 4.5V to 5.5V)
– 2.7 (V
CC
= 2.7V to 5.5V)
– 1.8 (V
CC
= 1.8V to 3.6V)
•
3.0 MHz Clock Rate (5V)
•
32-byte Page Mode
•
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: One Million Write Cycles
– Data Retention: 100 Years
– ESD Protection: >4000V
•
Automotive Grade and Extended Temperature Devices Available
•
8-pin PDIP, 8-lead JEDEC SOIC, and 14-lead and 20-lead TSSOP Packages
SPI Serial
EEPROMs
8K (1024 x 8)
16K (2048 x 8)
32K (4096 x 8)
Description
The AT25080/160/320/640 provides 8192/16384/32768/65536 bits of serial electri-
cally-erasable programmable read only memory (EEPROM) organized as
1024/2048/4096/8192 words of 8 bits each. The device is optimized for use in many
industrial and commercial applications where low-power and low-voltage operation
64K (8192 x 8)
AT25080
AT25160
AT25320
AT25640
(continued)
Pin Configuration
Pin Name Function
CS
Chip Select
8-pin PDIP
8-lead SOIC
SCK
Serial Data Clock
CS
SO
WP
GND
1
2
3
4
8
7
6
5
VCC
HOLD
SCK
SI
CS
SO
WP
GND
1
2
3
4
8
7
6
5
VCC
HOLD
SCK
SI
SI
Serial Data Input
SO
Serial Data Output
GND
Ground
VCC
Power Supply
WP
Write Protect
14-lead TSSOP
20-lead TSSOP*
HOLD
Suspends Serial Input
CS
SO
NC
NC
NC
WP
GND
1
2
3
4
5
6
7
14
13
12
11
10
9
8
VCC
HOLD
NC
NC
NC
SCK
SI
NC
CS
SO
SO
NC
NC
WP
GND
DC
NC
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
NC
VCC
HOLD
HOLD
NC
NC
SCK
SI
DC
NC
NC
No Connect
DC
Don’t Connect
Note: *Pins 3, 4 and 17, 18 are internally connected
for 14-lead TSSOP socket compatibility.
Rev. 0675E–04/01
1
   are essential. The AT25080/160/320/640 is available in
space saving 8-pin PDIP, 8-lead JEDEC SOIC, and 14-
lead and 20-lead TSSOP packages.
The AT250
80/
160/320/640 is enabled through the Chip
Select pin (CS) and accessed via a 3-wire interface con-
sisting of Serial Data Input (SI), Serial Data Output (SO),
and Serial Clock (SCK). All programming cycles are com-
pletely self-timed, and no separate ERASE cycle is
required before WRITE.
BLOCK WRITE protection is enabled by programming the
status register with one of four blocks of write protection.
Separate program enable and program disable instructions
are provided for additional data
pro
tection. Hardware data
protection is provided via the WP pin to protect a
gainst
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.................................. -40
°
C to +125
°
C
*NOTICE: Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age 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.
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
2
AT25080/160/320/640
AT25080/160/320/640
Pin Capacitance
(1)
Applicable over recommended operating range from T
A
= 25
°
C, f = 1.0 MHz, V
CC
= +5.0V (unless otherwise noted).
Symbol
Test Conditions
Max
Units
Conditions
C
OUT
Output Capacitance (SO)
8
pF
V
OUT
= 0V
C
IN
Input Capacitance(CS, SCK, SI, WP, HOLD)
6
pF
V
IN
= 0V
Note: 1. This parameter is characterized and is not 100% tested.
DC Characteristics
Applicable over recommended operating range from: T
AI
= -40
°
C to +85
°
C, V
CC
= +1.8V to +5.5V, T
AC
= 0
°
C to +70
°
C,
V
CC
= +1.8V to +5.5V (unless otherwise noted).
Symbol
Parameter
Test Condition
Min
Typ
Max
Units
V
CC1
Supply Voltage
1.8
3.6
V
V
CC2
Supply Voltage
2.7
5.5
V
V
CC3
Supply Voltage
4.5
5.5
V
I
CC1
Supply Current
V
CC
= 5.0V at 1 MHz, SO = Open, Read
3.0
mA
I
CC2
Supply Current
V
CC
= 5.0V at 2 MHz, SO = Open,
Read, Write
5.0
mA
I
SB1
Standby Current
V
CC
= 1.8V, CS = V
CC
0.1
1.0
µA
I
SB2
Standby Current
V
CC
= 2.7V, CS = V
CC
0.2
2.0
µA
I
SB3
Standby Current
V
CC
= 5.0V, CS = V
CC
2.0
5.0
µA
I
IL
Input Leakage
V
IN
= 0V to V
CC
-3.0
µA
I
OL
Output Leakage
V
IN
= 0V to V
CC
, T
AC
= 0°C to 70°C
-3.0
3.0
µA
V
IL
(1)
Input Low-voltage
-0.6
V
CC
x 0.3
V
V
IH
(1)
Input High-voltage
V
CC
x 0.7
V
CC
+ 0.5
V
V
OL1
Output Low-voltage
I
OL
= 3.0 mA
0.4
V
4.5V
≤
V
CC
≤
5.5V
V
OH1
Output High-voltage
I
OH
= -1.6 mA
V
CC
- 0.8
V
V
OL2
Output Low-voltage
I
OL
= 0.15 mA
0.2
V
1.8V
≤
V
CC
≤
3.6V
V
OH2
Output High-voltage
I
OH
= -100 µA
V
CC
- 0.2
V
Note: 1. V
IL
min and V
IH
max are reference only and are not tested.
3
AC Characteristics
Applicable over recommended operating range from T
A
= -40
°
C to +85
°
C, V
CC
= As Specified,
CL = 1 TTL Gate and 100 pF (unless otherwise noted).
Symbol
Parameter
Voltage
Min
Max
Units
f
SCK
SCK Clock Frequency
4.5 - 5.5
2.7 - 5.5
1.8 - 3.6
0
0
0
3.0
2.1
0.5
MHz
t
RI
Input Rise Time
4.5 - 5.5
2.7 - 5.5
1.8 - 3.6
2
2
2
µs
t
FI
Input Fall Time
4.5 - 5.5
2.7 - 5.5
1.8 - 3.6
2
2
2
µs
t
WH
SCK High Time
4.5 - 5.5
2.7 - 5.5
1.8 - 3.6
133
200
800
ns
t
WL
SCK Low Time
4.5 - 5.5
2.7 - 5.5
1.8 - 3.6
133
200
800
ns
t
CS
CS High Time
4.5 - 5.5
2.7 - 5.5
1.8 - 3.6
250
250
1000
ns
t
CSS
CS Setup Time
4.5 - 5.5
2.7 - 5.5
1.8 - 3.6
250
250
1000
ns
t
CSH
CS Hold Time
4.5 - 5.5
2.7 - 5.5
1.8 - 3.6
250
250
1000
ns
t
SU
Data In Setup Time
4.5 - 5.5
2.7 - 5.5
1.8 - 3.6
50
50
100
ns
t
H
Data In Hold Time
4.5 - 5.5
2.7 - 5.5
1.8 - 3.6
50
50
100
ns
t
HD
Hold Setup Time
4.5 - 5.5
2.7 - 5.5
1.8 - 3.6
100
100
400
t
CD
Hold Hold Time
4.5 - 5.5
2.7 - 5.5
1.8 - 3.6
200
200
400
ns
t
V
Output Valid
4.5 - 5.5
2.7 - 5.5
1.8 - 3.6
0
0
0
133
200
800
ns
t
HO
Output Hold Time
4.5 - 5.5
2.7 - 5.5
1.8 - 3.6
0
0
0
ns
4
AT25080/160/320/640
AT25080/160/320/640
AC Characteristics (Continued)
Applicable over recommended operating range from T
A
= -40
°
C to +85
°
C, V
CC
= As Specified,
CL = 1 TTL Gate and 100 pF (unless otherwise noted).
Symbol
Parameter
Voltage
Min
Max
Units
t
LZ
Hold to Output Low Z
4.5 - 5.5
2.7 - 5.5
1.8 - 3.6
0
0
0
100
100
100
ns
t
HZ
Hold to Output High Z
4.5 - 5.5
2.7 - 5.5
1.8 - 3.6
100
100
100
ns
t
DIS
Output Disable Time
4.5 - 5.5
2.7 - 5.5
1.8 - 3.6
250
250
1000
ns
t
WC
Write Cycle Time
4.5 - 5.5
2.7 - 5.5
1.8 - 3.6
5
10
20
ms
Endurance
(1)
5.0V, 25°C, Page Mode
1M
Write Cycles
Note: 1. This parameter is characterized and is not 100% tested.
5
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