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PDF IS93C56A Data sheet ( Hoja de datos )
| Número de pieza | IS93C56A | |
| Descripción | (IS93C56A / IS93C66A) 2K-BIT/4K-BIT SERIAL ELECTRICALLY ERASABLE PROM | |
| Fabricantes | ISSI | |
| Logotipo |  |
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IS93C56A IS93C66A
ISSI ®
2K-BIT/4K-BIT SERIAL ELECTRICALLY
ERASABLE PROM
MAY 2006
FEATURES
DESCRIPTION
• Industry-standard Microwire Interface
— Non-volatile data storage
— Wide voltage operation:
Vcc = 1.8V to 5.5V
— Auto increment for efficient data dump
• User Configured Memory Organization
— By 16-bit or by 8-bit
The IS93C56A/66A are 2kb/4kb non-volatile,
ISSI ® serial EEPROMs. They are fabricated using
an enhanced CMOS design and process. The
IS93C56A/66A contain power-efficient read/write
memory, and organization of either 256/512 bytes
of 8 bits or 128/256 words of 16 bits. When the
ORG pin is connected to Vcc or left unconnected,
• Hardware and software write protection
x16 is selected; when it is connected to ground,
— Defaults to write-disabled state at power-up
x8 is selected. The IS93C56A/66A are fully
— Software instructions for write-enable/disable
backward compatible with IS93C56/66.
• Enhanced low voltage CMOS E2PROM
technology
An instruction set defines the operation of the
devices, including read, write, and mode-enable
• Versatile, easy-to-use Interface
— Self-timed programming cycle
— Automatic erase-before-write
— Programming status indicator
— Word and chip erasable
— Chip select enables power savings
functions. To protect against inadvertent data
modification, all erase and write instructions are
accepted only while the devices are write-enabled.
A selected x8 byte or x16 word can be modified
with a single WRITE or ERASE instruction.
Additionally, the two instructions WRITE ALL or
DataShee
• Durable and reliable
DataSheet4U.EcoRmASE ALL can program an entire array. Once a
— 40-year data retention after 1M write cycles
device begins its self-timed program procedure,
— 1 million write cycles
— Unlimited read cycles
the data out pin (Dout) can indicate the READY/
BUSY status by raising chip select (CS). The self-
— Schmitt-trigger inputs
• Industrial and Automotive Temperature Grade
• Lead-free available
timed write cycle includes an automatic erase-
before-write capability. The devices can output
any number of consecutive bytes/words using a
single READ instruction.
FUNCTIONAL BLOCK DIAGRAM
DIN
INSTRUCTION
REGISTER
CS
SK
INSTRUCTION
DECODE,
CONTROL,
AND
CLOCK
GENERATION
DATA
REGISTER
ADDRESS
REGISTER
WRITE
ENABLE
DUMMY
BIT
R/W
AMPS
ADDRESS
DECODER
HIGH VOLTAGE
GENERATOR
DOUT
EEPROM
ARRAY
256/512x8
128/256x16
Copyright © 2006 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time
without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to
DataSheet4Uob.tcaoinmthe latest version of this device specification before relying on any published information and before placing orders for products.
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
Rev. A
05/02/06
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1
1 page  
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IS93C56A
IS93C66A
ABSOLUTE MAXIMUM RATINGS(1)
Symbol Parameter
Value
Unit
VS Supply Voltage
–0.5 to +6.5
V
VP Voltage on Any Pin
–0.5 to Vcc + 0.5 V
TBIAS
Temperature Under Bias
–55 to +125
°C
TSTG
Storage Temperature
–65 to +150
°C
IOUT Output Current
5 mA
Notes:
1. Stress greater than 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 above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
OPERATING RANGE
(IS93C56A-2, IS93C66A-2)
et4U.com
Range
Industrial
Ambient Temperature
–40°C to +85°C
VCC
1.8V to 5.5V
Note: ISSI offers Industrial grade for Commercial applications (0oC to +70oC)
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OPERATING RANGE
(IS93C56A-3, IS93C66A-3)
Range
Automotive
Ambient Temperature
–40°C to +125°C
VCC
2.5V to 5.5V
CAPACITANCE
Symbol
CIN
COUT
Parameter
Input Capacitance
Output Capacitance
Conditions
VIN = 0V
VOUT = 0V
Max.
5
5
Unit
pF
pF
ISSI ®
DataShee
DataSheet4U.com
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
Rev. A
05/02/06
DataSheet4 U .com
5
5 Page 
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IS93C56A
IS93C66A
ISSI ®
AC WAVEFORMS
FIGURE 6. WRITE ALL (WRALL) CYCLE TIMING
tCS
CS
DIN
DOUT
10 0 0 1
Dm D0
tSV
BUSY READY
tWP
et4U.com
DataShee
Notes:
1. After
the
completion
of
the
instruction
(DOUT
is
in
REDAaDtYaSsthaetuest)4tUhe.cnoitmmay
perform
another
instruction.
If
device
is
in
BUSY
status
(DOUT indicates BUSY status) then attempting to perform another instruction could cause device malfunction.
2. To determine data bits Dm-D0, see Instruction Set for the appropriate device.
FIGURE 7. WRITE DISABLE (WDS) CYCLE TIMING
CS
DIN 1 0 0 0 0
DOUT = 3-STATE
tCS
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Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
Rev. A
05/02/06
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| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet IS93C56A.PDF ] | |
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