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AT93C66-10SI-2.5

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
1
Features
• Low-voltage and Standard-voltage Operation
– 5.0 (V
CC
= 4.5V to 5.5V)
– 2.7 (V
CC
= 2.7V to 5.5V)
– 2.5 (V
CC
= 2.5V to 5.5V)
– 1.8 (V
CC
= 1.8V to 5.5V)
• User-selectable Internal Organization
– 1K: 128 x 8 or 64 x 16
– 2K: 256 x 8 or 128 x 16
– 4K: 512 x 8 or 256 x 16
• 3-wire Serial Interface
• 2 MHz Clock Rate (5V) Compatibility
• Self-timed Write Cycle (10 ms max)
• High Reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
– ESD Protection: >4000V
• Automotive Grade and Extended Temperature Devices Available
• 8-pin PDIP, 8-lead JEDEC and EIAJ SOIC, and 8-lead TSSOP Packages
Description
The AT93C46/56/57/66 provides 1024/2048/4096 bits of serial electrically erasable
programmable read only memory (EEPROM) organized as 64/128/256 words of 16
bits each, when the ORG pin is connected to V
CC
and 128/256/512 words of 8 bits
each when it is tied to ground. The device is optimized for use in many industrial and
commercial applications where low power and low voltage operations are essential.
The AT93C46/56/57/66 is available in space saving 8-pin PDIP and 8-lead JEDEC
and EIAJ SOIC packages.
3-wire Serial
EEPROMs
1K (128 x 8 or 64 x 16)
2K (256 x 8 or 128 x 16)
4K (512 x 8 or 256 x 16)
AT93C46
AT93C56
AT93C57
AT93C66
Rev. 0172L–10/99
Pin Configurations
Pin Name Function
CS Chip Select
SK Serial Data Clock
DI Serial Data Input
DO Serial Data Output
GND Ground
VCC Power Supply
ORG Internal Organization
DC Don’t Connect
8-pin PDIP
1
2
3
4
8
7
6
5
CS
SK
DI
DO
VCC
DC
ORG
GND
8-lead SOIC
Rotated (R)
(1K JEDEC Only)
1
2
3
4
8
7
6
5
DC
VCC
CS
SK
ORG
GND
DO
DI
8-lead SOIC
1
2
3
4
8
7
6
5
CS
SK
DI
DO
VCC
DC
ORG
GND
(continued)
8-lead TSSOP
1
2
3
4
8
7
6
5
CS
SK
DI
DO
VCC
DC
ORG
GND
AT93C46/56/57/66
2
The AT93C46/56/57/66 is enabled through the Chip Select
pin (CS), and accessed via a 3-wire serial interface consist-
ing of Data Input (DI), Data Output (DO), and Shift Clock
(SK). Upon receiving a READ instruction at DI, the address
is decoded and the data is clocked out serially on the data
output pin DO. The WRITE cycle is completely self-timed
and no separate ERASE cycle is required before WRITE.
The WRITE cycle is only enabled when the part is in the
ERASE/WRITE ENABLE state. When CS is brought “high”
following the initiation of a WRITE cycle, the DO pin out-
puts the READY/BUSY status of the part.
The AT93C46 is available in 4.5V to 5.5V, 2.7V to 5.5V,
2.5V to 5.5V, and 1.8V to 5.5V versions. The
AT93C56/57/66 is available in 4.5V to 5.5V, 2.7V to 5.5V,
and 2.5V to 5.5V versions.
Block Diagram
Note: 1. When the ORG pin is connected to V
CC
, the x 16 organization is selected. When it is connected to ground, the x 8 organiza-
tion is selected. If the ORG pin is left unconnected, then an internal pullup device (of approximately 1 MΩ) will select the x
16 organization. This feature is not available on 1.8V devices.
Absolute Maximum Ratings*
Operating Temperature.................................. -55°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
AT93C46/56/57/66
3
Note: 1. This parameter is characterized and is not 100% tested.
Note: 1. V
IL
min and V
IH
max are reference only and are not tested.
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 (DO) 5 pF V
OUT
= 0V
C
IN
Input Capacitance (CS, SK, DI) 5 pF V
IN
= 0V
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 Unit
V
CC1
Supply Voltage 1.8 5.5 V
V
CC2
Supply Voltage 2.5 5.5 V
V
CC3
Supply Voltage 2.7 5.5 V
V
CC4
Supply Voltage 4.5 5.5 V
I
CC
Supply Current V
CC
= 5.0V
READ at 1.0 MHz 0.5 2.0 mA
WRITE at 1.0 MHz 0.5 2.0 mA
I
SB1
Standby Current V
CC
= 1.8V CS = 0V 0 0.1 µA
I
SB2
Standby Current V
CC
= 2.5V CS = 0V 6.0 10.0 µA
I
SB3
Standby Current V
CC
= 2.7V CS = 0V 6.0 10.0 µA
I
SB4
Standby Current V
CC
= 5.0V CS = 0V 17 30 µA
I
IL
Input Leakage V
IN
= 0V to V
CC
0.1 1.0 µA
I
OL
Output Leakage V
IN
= 0V to V
CC
0.1 1.0 µA
V
IL1
(1)
V
IH1
(1)
Input Low Voltage
Input High Voltage
4.5V ≤ V
CC
≤ 5.5V
-0.6
2.0
0.8
V
CC
+ 1
V
V
IL2
(1)
V
IH2
(1)
Input Low Voltage
Input High Voltage
1.8V ≤ V
CC
≤ 2.7V
-0.6
V
CC
x 0.7
V
CC
x 0.3
V
CC
+ 1
V
V
OL1
V
OH1
Output Low Voltage
Output High Voltage
4.5V ≤ V
CC
≤ 5.5V
I
OL
= 2.1 mA 0.4 V
I
OH
= -0.4 mA 2.4 V
V
OL2
V
OH2
Output Low Voltage
Output High Voltage
1.8V ≤ V
CC
≤ 2.7V
I
OL
= 0.15 mA 0.2 V
I
OH
= -100 µA V
CC
- 0.2 V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

AT93C66-10SI-2.5

Mfr. #:
Buy AT93C66-10SI-2.5
Manufacturer:
Description:
IC EEPROM 4K SPI 2MHZ 8SOIC
Lifecycle:
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