93AA46 Microchip Technology, 93AA46 Datasheet

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93AA46

Manufacturer Part Number
93AA46
Description
1K/2K/4K 1.8V Microwire Serial EEPROM
Manufacturer
Microchip Technology
Datasheet

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Company
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Quantity
Price
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20 000
FEATURES
• Single supply with programming operation down
• 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 on
• 1,000,000 E/W cycles guaranteed on 93AA46
• Data retention > 200 years
• 8-pin PDIP/SOIC
• Temperature ranges supported
DESCRIPTION
The Microchip Technology Inc. 93AA46/56/66 are 1K,
2K and 4K 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. The 93AA
Series is available in standard 8-pin DIP and surface
mount SOIC packages. The rotated pin-out 93AA46X/
56X/66X are offered in the “SN” package only.
Microwire is a registered trademark of National Semiconductor Incorporated.
1996 Microchip Technology Inc.
to 1.8V
- 70 A typical active READ current at 1.8V
- 2 A typical standby current at 1.8V
- 128 x 8- or 64 x 16-bit organization (93AA46)
- 256 x 8- or 128 x 16-bit organization
- 512 x 8 or 256 x 16 bit organization (93AA66)
(including auto-erase)
93AA56 and 93AA66
(SOIC in JEDEC and EIAJ standards)
- Commercial (C):
(93AA56)
1K/2K/4K 1.8V Microwire Serial EEPROM
0 C to +70 C
This document was created with FrameMaker 4 0 4
93AA46/56/66
PACKAGE TYPES
BLOCK DIAGRAM
ORG
DIP
SOIC
SOIC
CLK
CS
DI
CLK
CLK
Vcc
DO
NU
CS
CS
CLK
DI
DO
CS
DATA REGISTER
DI
GENERATOR
V
CC
MEMORY
DECODE
ARRAY
LOGIC
CLOCK
MODE
1
2
3
4
1
2
3
4
1
2
3
4
V
SS
DECODER
COUNTER
ADDRESS
ADDRESS
8
7
6
5
8
7
6
5
8
7
6
5
DS20067G-page 1
BUFFER
V
NU
ORG
V
OUTPUT
CC
V
NU
ORG
V
SS
ORG
Vss
DO
DI
CC
SS
DO

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93AA46 Summary of contents

Page 1

... Low power CMOS technology - 70 A typical active READ current at 1. typical standby current at 1.8V • ORG pin selectable memory configuration - 128 16-bit organization (93AA46) - 256 128 x 16-bit organization (93AA56) - 512 256 x 16 bit organization (93AA66) • Self-timed ERASE and WRITE cycles (including auto-erase) • ...

Page 2

... Endurance 93AA46 — 93AA56/66 — Note 1: This parameter is tested at Tamb = 25 C and F 2: This parameter is periodically sampled and not 100% tested. 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. ...

Page 3

... TABLE 1-3: INSTRUCTION SET FOR 93AA46: ORG = ORGANIZATION) Instruction SB Opcode READ 1 10 EWEN 1 00 ERASE 1 11 ERAL 1 00 WRITE 1 01 WRAL 1 00 EWDS 1 00 TABLE 1-4: INSTRUCTION SET FOR 93AA46: ORG = ORGANIZATION) Instruction SB Opcode READ 1 10 EWEN 1 00 ERASE 1 11 ERAL ...

Page 4

... Erase/Write Enable and Disable (EWEN,EWDS) The 93AA46/56/66 power 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 5

... CS is brought high after a minimum of 250 ns low (T ). CSL The WRAL cycle takes 16 ms typical CKH CKL T DIH T PD STATUS VALID • • • • • • D0 Dx* • • • 93AA46/56/66 10%. T CSH CSL D0 Dx* • • • D0 DS20067G-page 5 ...

Page 6

... FIGURE 2-3: EWEN TIMING CS CLK FIGURE 2-4: EWDS TIMING CS CLK FIGURE 2-5: WRITE TIMING CS CLK TRI-STATE DO DS20067G-page 6 • • • • • • TCSL • • • • • • • ...

Page 7

... TRI-STATE DO • Guaranteed 5.0V 10%. CC 1996 Microchip Technology Inc • • • • • • D0 TCSL An An-1 An-2 • • • 93AA46/56/66 T CSL STANDBY BUSY READY TRI-STATE T WL STANDBY CHECK STATUS TCZ TSV TRI-STATE READY BUSY TWC T CSL STANDBY CHECK STATUS ...

Page 8

... PIN DESCRIPTION 3.1 Chip Select (CS) A HIGH level selects the device. A LOW level deselects the device and forces it into standby mode. However, a programming cycle which is already initiated and/or in progress will be completed, regardless of the CS input signal brought LOW during a program cycle, the device will go into standby mode as soon as the pro- gramming cycle is completed ...

Page 9

... NOTES: 1996 Microchip Technology Inc. 93AA46/56/66 DS20067G-page 9 ...

Page 10

... NOTES: DS20067G-page 10 1996 Microchip Technology Inc. ...

Page 11

... Product Identification System To order or to obtain information, e.g., on pricing or delivery, please use the listed part numbers, and refer to the factory or the listed sales offices. 93AA46/56/ Package: Temperature Range: Device: 1996 Microchip Technology Inc Plastic DIP (300 mil Body), 8-lead ...

Page 12

... Information contained in this publication regarding device applications and the like is intended through suggestion only and may be superseded by updates. No repre- sentation or warranty is given and no liability is assumed by Microchip Technology Incorporated with respect to the accuracy or use of such information, or infringement of patents or other intellectual property rights arising from such use or otherwise. Use of Microchip’s products as critical components in life support systems is not autho- rized except with express written approval by Microchip ...

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