93C76-EP MICROCHIP [Microchip Technology], 93C76-EP Datasheet

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93C76-EP

Manufacturer Part Number
93C76-EP
Description
8K/16K 5.0V Microwire Serial EEPROM
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
FEATURES
• Single 5.0V supply
• Low power CMOS technology
• ORG pin selectable memory configuration
• Self-timed ERASE and WRITE cycles
• Automatic ERAL before WRAL
• Power on/off data protection circuitry
• Industry standard 3-wire serial I/O
• Device status signal during ERASE/WRITE cycles
• Sequential READ function
• 10,000,000 ERASE/WRITE cycles guaranteed
• Data retention > 200 years
• 8-pin PDIP/SOIC package
• Temperature ranges supported
DESCRIPTION
The Microchip Technology Inc. 93C76/86 are 8K and
16K low voltage serial Electrically Erasable PROMs.
The device memory is configured as x8 or x16 bits
depending on the ORG pin setup. Advanced CMOS
technology makes these devices ideal for low power
non-volatile memory applications. These devices also
have a Program Enable (PE) pin to allow the user to
write protect the entire contents of the memory array.
The 93C76/86 is available in standard 8-pin DIP and 8-
pin surface mount SOIC packages.
Microwire is a registered trademark of National Semiconductor Incorporated.
1996 Microchip Technology Inc.
- 1 mA active current typical
1024 x 8- or 512 x 16-bit organization (93C76)
2048 x 8- or 1024 x 16-bit organization (93C86)
(including auto-erase)
- Commercial (C):
- Industrial
- Automotive (E)
8K/16K 5.0V Microwire Serial EEPROM
-40 C to
-40 C to +125 C
0 C to
This document was created with FrameMaker 4 0 4
+70 C
+85 C
Preliminary
PACKAGE TYPES
BLOCK DIAGRAM
CLK
CS
PE
DI
SOIC Package
DIP Package
Generator
V
Register
Memory
Decode
Clock
Logic
CC
Mode
Array
CLK
Data
DO
CS
CLK
DI
93C76/86
DO
V
CS
DI
SS
1
2
3
4
1
2
3
4
Address
Counter
Decoder
Address
8
7
6
5
8
7
6
5
V
PE
ORG
V
V
PE
ORG
V
CC
SS
DS21132C-page 1
CC
SS
Output
Buffer
DO

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93C76-EP Summary of contents

Page 1

... These devices also have a Program Enable (PE) pin to allow the user to write protect the entire contents of the memory array. The 93C76/86 is available in standard 8-pin DIP and 8- pin surface mount SOIC packages. Microwire is a registered trademark of National Semiconductor Incorporated. 1996 Microchip Technology Inc. ...

Page 2

... ELECTRICAL CHARACTERISTICS 1.1 Maximum Ratings* V ...................................................................................7.0V CC All inputs and outputs w.r.t. V ............... -0.6V to Vcc +1.0V SS Storage temperature ..................................... -65˚C to +150˚C Ambient temp. with power applied................. -65˚C to +125˚C Soldering temperature of leads (10 seconds) ............. +300˚C ESD protection on all pins................................................4 kV *Notice: Stresses above those listed under “Maximum ratings” ...

Page 3

... Typical program cycle per word. 3: This parameter is not tested but guaranteed by characterization. For endurance estimates in a specific appli- cation, please consult the Total Endurance Model which can be obtained on our BBS or website. TABLE 1-4: INSTRUCTION SET FOR 93C76: ORG=1 (X16 ORGANIZATION) Instruction SB Opcode ...

Page 4

... TABLE 1-6: INSTRUCTION SET FOR 93C86: ORG=1 (X16 ORGANIZATION) Instruction SB Opcode READ EWEN ERASE ERAL WRITE 1 01 ...

Page 5

... Data Out pin. 2.3 Erase/Write Enable and Disable (EWEN, EWDS) The 93C76/86 powers up in the Erase/Write Disable (EWDS) state. All programming modes must be pre- ceded by an Erase/Write Enable (EWEN) instruction. Once the EWEN instruction is executed, programming remains enabled until an EWDS instruction is executed removed from the device ...

Page 6

... DEVICE OPERATION 3.1 READ The READ instruction outputs the serial data of the addressed memory location on the DO pin. A dummy zero bit precedes the 16 bit (x16 organization bit (x8 organization) output string. The output data bits will toggle on the rising edge of the CLK and are stable after the specifi ...

Page 7

... Microchip Technology Inc CKH CKL T DIH STATUS VALID ... ... ... ORG X’s CC ORG X’s SS ... ORG X’s CC ORG X’S SS Preliminary 93C76/86 T CSH CSL ... CSL T CSL X DS21132C-page 7 ...

Page 8

... FIGURE 3-5: WRITE CS CLK HIGH IMPEDANCE DO FIGURE 3-6: WRAL CS CLK HIGH IMPEDANCE DO ORG X’s CC ORG X’s SS FIGURE 3-7: ERASE CS CLK HIGH IMPEDANCE DO DS21132C-page 8 ... ... ... Guarantee at Vcc = +4.5V to +5.5V. ... ... Preliminary STANDBY ...

Page 9

... RESET status. 4.2 Serial Clock (CLK) The Serial Clock is used to synchronize the communi- cation between a master device and the 93C76/86. Opcode, address, and data bits are clocked in on the positive edge of CLK. Data bits are also clocked out on the positive edge of CLK. ...

Page 10

... NOTES: DS21132C-page 10 Preliminary 1996 Microchip Technology Inc. ...

Page 11

... Product Identification System To order or obtain information, e.g., on pricing or delivery, please use the listed part numbers, and refer to the factory or the listed sales office. 93C76/86 – \P Package: Temperature Range: Device: Sales and Support Products supported by a preliminary Data Sheet may possibly have an errata sheet describing minor operational differences and recommended workarounds ...

Page 12

W ORLDWIDE AMERICAS Corporate Office Microchip Technology Inc. 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 602 786-7200 Fax: 602 786-7277 Technical Support: 602 786-7627 Web: http://www.microchip.com Atlanta Microchip Technology Inc. 500 Sugar Mill Road, Suite 200B Atlanta, GA 30350 ...

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