is93c56a Integrated Silicon Solution, Inc., is93c56a Datasheet

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is93c56a

Manufacturer Part Number
is93c56a
Description
2k-bit/4k-bit Serial Electrically Erasable Prom
Manufacturer
Integrated Silicon Solution, Inc.
Datasheet

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IS93C56A
2K-BIT/4K-BIT SERIAL ELECTRICALLY
ERASABLE PROM
FEATURES
• Industry-standard Microwire Interface
• User Configured Memory Organization
• Hardware and software write protection
• Enhanced low voltage CMOS E
• Versatile, easy-to-use Interface
• Durable and reliable
• Industrial and Automotive Temperature Grade
• Lead-free available
FUNCTIONAL BLOCK DIAGRAM
Integrated Silicon Solution, Inc. — www.issi.com —
Rev. A
05/02/06
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
obtain the latest version of this device specification before relying on any published information and before placing orders for products.
— Non-volatile data storage
— Wide voltage operation:
— Auto increment for efficient data dump
— By 16-bit or by 8-bit
— Defaults to write-disabled state at power-up
— Software instructions for write-enable/disable
technology
— Self-timed programming cycle
— Automatic erase-before-write
— Programming status indicator
— Word and chip erasable
— Chip select enables power savings
— 40-year data retention after 1M write cycles
— 1 million write cycles
— Unlimited read cycles
— Schmitt-trigger inputs
D
IN
CS
SK
Vcc = 1.8V to 5.5V
INSTRUCTION
REGISTER
INSTRUCTION
GENERATION
IS93C66A
CONTROL,
DECODE,
CLOCK
AND
2
PROM
REGISTER
REGISTER
ADDRESS
ENABLE
WRITE
1-800-379-4774
DATA
DESCRIPTION
The IS93C56A/66A are 2kb/4kb non-volatile,
ISSI
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,
x16 is selected; when it is connected to ground,
x8 is selected. The IS93C56A/66A are fully
backward compatible with IS93C56/66.
An instruction set defines the operation of the
devices, including read, write, and mode-enable
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
ERASE ALL can program an entire array. Once a
device begins its self-timed program procedure,
the data out pin (Dout) can indicate the READY/
BUSY status by raising chip select (CS). The self-
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.
®
serial EEPROMs. They are fabricated using
DUMMY
AMPS
R/W
BIT
HIGH VOLTAGE
DECODER
ADDRESS
GENERATOR
ISSI
MAY 2006
128/256x16
256/512x8
EEPROM
ARRAY
D
OUT
®
1

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is93c56a Summary of contents

Page 1

... When the ORG pin is connected to Vcc or left unconnected, x16 is selected; when it is connected to ground selected. The IS93C56A/66A are fully backward compatible with IS93C56/66. 2 PROM An instruction set defines the operation of the devices, including read, write, and mode-enable functions ...

Page 2

... The output on D low-to-high transitions of SK (see Figure 3). Low Voltage Read The IS93C56A/66A are designed to ensure that data read operations are reliable in low voltage environments. They provide accurate operation with Vcc as low as 1.8V. Auto Increment Read Operations ...

Page 3

... IS93C56A IS93C66A Write Enable (WEN) The write enable (WEN) instruction must be executed before any device programming (WRITE, WRALL, ERASE, and ERAL) can be done. When Vcc is applied, this device powers up in the write disabled state. The device then remains in a write disabled state until a WEN instruction is executed ...

Page 4

... IS93C56A IS93C66A INSTRUCTION SET - IS93C56A (2kb) (2) Instruction Start Bit OP Code READ 1 WEN 1 (Write Enable) WRITE 1 WRALL 1 (Write All Registers) WDS 1 (Write Disable) ERASE 1 ERAL ( 1 Erase All Registers) Notes Don't care bit the number of bits clocked-in does not match the number corresponding to a selected command, all extra trailing bits are ignored, and WRITE, WRALL, ERASE, and ERAL are also ignored, but READ, WEN, WDS are accepted ...

Page 5

... OPERATING RANGE (IS93C56A-2, IS93C66A-2) Range Ambient Temperature Industrial –40°C to +85°C Note: ISSI offers Industrial grade for Commercial applications (0 OPERATING RANGE (IS93C56A-3, IS93C66A-3) Range Ambient Temperature Automotive –40°C to +125°C CAPACITANCE Symbol Parameter C ...

Page 6

... IS93C56A IS93C66A DC ELECTRICAL CHARACTERISTICS T = –40°C to +85°C for Industrial and –40°C to +125°C for Automotive. A Symbol Parameter V Output LOW Voltage OL2 V Output LOW Voltage OL1 V Output HIGH Voltage OH2 V Output HIGH Voltage OH1 V Input HIGH Voltage IH V Input LOW Voltage ...

Page 7

... IS93C56A IS93C66A AC ELECTRICAL CHARACTERISTICS T = –40°C to +85°C for Industrial A Symbol Parameter f SK Clock Frequency HIGH Time SKH t SK LOW Time SKL t Minimum CS LOW Time Setup Time CSS t Din Setup Time DIS t CS Hold Time CSH t Din Hold Time ...

Page 8

... IS93C56A IS93C66A AC ELECTRICAL CHARACTERISTICS T = –40°C to +125°C for Automotive A Symbol Parameter f SK Clock Frequency HIGH Time SKH t SK LOW Time SKL t Minimum CS LOW Time Setup Time CSS t Din Setup Time DIS t CS Hold Time CSH t Din Hold Time ...

Page 9

... IS93C56A IS93C66A AC WAVEFORMS FIGURE 2. SYNCHRONOUS DATA TIMING CS t CSS SK t DIS OUT (READ) D OUT (WRITE) (WRALL) (ERASE) (ERAL) FIGURE 3. READ CYCLE TIMING OUT * Address Pointer Cycles to the Next Register Notes: To determine address bits An-A0 and data bits Dm-Do, see Instruction Set for the specific device. ...

Page 10

... IS93C56A IS93C66A AC WAVEFORMS FIGURE 4. WRITE ENABLE (WEN) CYCLE TIMING 3-state OUT FIGURE 5. WRITE (WRITE) CYCLE TIMING OUT Notes: 1. After the completion of the instruction (D indicates BUSY status) then attempting to perform another instruction could cause device malfunction. (D OUT 2. To determine address bits A ...

Page 11

... IS93C56A IS93C66A AC WAVEFORMS FIGURE 6. WRITE ALL (WRALL) CYCLE TIMING OUT Notes: 1. After the completion of the instruction (D indicates BUSY status) then attempting to perform another instruction could cause device malfunction. (D OUT 2. To determine data bits see Instruction Set for the appropriate device. ...

Page 12

... IS93C56A IS93C66A AC WAVEFORMS FIGURE 8. ERASE (REGISTER ERASE) CYCLE TIMING OUT Notes: To determine data bits An - A0, see Instruction Set for the appropriate device. FIGURE 9. ERASE ALL (ERAL) CYCLE TIMING OUT Note for Figures 8 and 9: After the completion of the instruction (D indicates BUSY status) then attempting to perform another instruction could cause device malfunction ...

Page 13

... IS93C66A-2PI IS93C66A-2GRI IS93C66A-2ZI 2.5V to 5.5V IS93C56A-3PI IS93C56A-3GRI 2.5V to 5.5V IS93C66A-3PI IS93C66A-3GRI Automotive Range: -40ºC to +125ºC, Lead-free Voltage Range Order Part No. 2.5V to 5.5V IS93C56A-3PLA3 IS93C56A-3GRLA3 IS93C56A-3ZLA3 2.5V to 5.5V IS93C66A-3PLA3 IS93C66A-3GRLA3 IS93C66A-3ZLA3 Industrial Range: -40ºC to +85ºC, Lead-free Voltage Range Order Part No. 1.8V to 5.5V IS93C56A-2PLI IS93C56A-2GRLI IS93C56A-2ZLI 1.8V to 5.5V IS93C66A-2PLI IS93C66A-2GRLI IS93C66A-2ZLI Integrated Silicon Solution, Inc. — ...

Page 14

... Copyright © 2003 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 obtain the latest version of this device specification before relying on any published information and before placing orders for products. Integrated Silicon Solution, Inc. — ...

Page 15

... Ref. Std. Inches No. Leads 8 A — 0.068 A1 0.004 0.009 B 0.013 0.020 C 0.007 0.010 D 0.189 0.197 E 0.150 0.157 H 0.228 0.245 e 0.050 BSC L 0.020 0.035 Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. C 10/03/ SEATING PLANE Min Max mm 8 — 1.73 0.1 0.23 0.33 0.51 0.18 0.25 4.8 5 3.81 3.99 5.79 6.22 1.27 BSC ...

Page 16

... SSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best possible product. We assume no responsibility for any errors which may appear in this publication. © Copyright 2002, Integrated Silicon Solution, Inc. Integrated Silicon Solution, Inc. ...

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