BR93L66RF-WE2 Rohm Semiconductor, BR93L66RF-WE2 Datasheet

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BR93L66RF-WE2

Manufacturer Part Number
BR93L66RF-WE2
Description
IC EEPROM 4KBIT 2MHZ 8SOP
Manufacturer
Rohm Semiconductor
Datasheets

Specifications of BR93L66RF-WE2

Memory Size
4K (256 x 16)
Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Speed
2MHz
Interface
Microwire, 3-Wire Serial
Voltage - Supply
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
8-SOP
Clock Frequency
2MHz
Supply Voltage Range
1.8V To 5.5V
Memory Case Style
SOP
No. Of Pins
8
Operating Temperature Range
-40°C To +85°C
Svhc
No SVHC (18-Jun-2010)
Package /
RoHS Compliant
Memory Configuration
256 X 16
Interface Type
Serial, Microwire
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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HIGH GRADE Specification HIGH RELIABILITY series
Microwire BUS Serial EEPROMs
Supply voltage 1.8V~5.5V
Operating temperature –40°C~+85°C type
BR93L46-W, BR93L56-W, BR93L66-W, BR93L76-W, BR93L86-W
BR93L Series
Description
Features
Capacity
BR93L
16Kbit
1Kbit
2Kbit
4Kbit
8Kbit
3-line communications of chip select, serial clock, serial data input / output (the case where input and output are shared)
Actions available at high speed 2MHz clock (2.5 ~ 5.5V)
Speed write available (write time 5 ms max.)
Same package and pin layout from 1Kbit to 16Kbit
1.8 ~ 5.5V single power source action
Highly reliable connection by Au pad and Au wire
Address auto increment function at read action
Write mistake prevention function
Program cycle auto delete and auto end function
Program condition display by READY / BUSY
Low current consumption
TTL compatible input / output
Compact package SOP8, SOP-J8, SSOP-B8, TSSOP-B8, MSOP8, TSSOP-B8J
Data retention for 40 years
Data rewrite up to 1,000,000 times
Data at shipment all addresses FFFFh
Write prohibition at power on
Write prohibition by command code
Write mistake prevention function at low voltage
At write action (at 5V) : 1.2mA (Typ.)
At read action (at 5V) : 0.3mA (Typ.)
At standby action (at 5V) : 0.1µA (Typ.) (CMOS input)
Bit format
256 × 16
512 × 16
128 × 16
-W series is a serial EEPROM of serial 3-line interface method.
1K × 16
64 × 16
Package type
BR93L46-W
BR93L56-W
BR93L66-W
BR93L76-W
BR93L86-W
Type
TECHNICAL NOTE
Power source voltage
1.8 ~ 5.5V
1.8 ~ 5.5V
1.8 ~ 5.5V
1.8 ~ 5.5V
1.8 ~ 5.5V
F
SOP8
RF
FJ
SOP-J8
RFJ
FV
SSOP-B8
RFV
FVT
TSSOP-B8
RFVT
MSOP8
RFVM
Ver.B Oct.2005
TSSOP-B8J
RFVJ

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BR93L66RF-WE2 Summary of contents

Page 1

TECHNICAL NOTE HIGH GRADE Specification HIGH RELIABILITY series Microwire BUS Serial EEPROMs Supply voltage 1.8V~5.5V Operating temperature –40°C~+85°C type BR93L46-W, BR93L56-W, BR93L66-W, BR93L76-W, BR93L86-W Description BR93L -W series is a serial EEPROM of serial 3-line interface method. Features 3-line communications ...

Page 2

... LO I CC1 Current consumption at I CC2 action I CC3 Standby current I SB Radiation resistance design is not made. Memory cell characteristics (Ta=25˚C, Vcc=1.8 ~ 5.5V) Parameter Min. Number of data rewrite times *1 1,000,000 Data hold years *1 40 Limits Unit -0.3 ~ +6.5 V SOP8 (F, RF) 450 ...

Page 3

Action timing characteristics (Ta=-40 ~ +85˚C, Vcc=2.5 ~ 5.5V) Parameter SK frequency SK "H" time SK "L" time CS "L" time CS setup time DI setup time CS hold time DI hold time Data "1" output delay time Data "0" ...

Page 4

Characteristic data SPEC 2 1 Ta=-40˚C Ta=25˚C Ta=85˚ SUPPLY VOLTAGE : V (V) CC Fig input voltage V (CS,SK,DI 0.8 0.6 0.4 Ta=25˚C SPEC ...

Page 5

SK SPEC DATA=0000h 4 3 Ta=85˚C SPEC Ta=25˚C 2 Ta=-40˚ SUPPLY VOLTAGE : V (V) CC Fig. 17 Consumption current at WRAL action I 3(WRAL,f =500kHz ...

Page 6

Block diagram Command decode CS Control Clock generation SK Command DI register DO Dummy bit Pin assignment and function NC GND DO BR93LXXF-W:SOP8 BR93LXXFJ-W:SOP-J8 BR93LXXFV-W:SSOP-B8* BR93LXXFVT-W:TSSOP-B8 BR93L46/56/66-W Pin name ...

Page 7

... As for read, by continuous SK clock input after setting the read command, data output of the set address starts, and address data in significant order are sequentially output continuously. (Auto increment function) *2 When the read, and the write all commands are executed, data written in the selected memory cell is automatically deleted, and input data is written. Micro- ...

Page 8

Timing chart 1) Read cycle (READ High-Z *1 Start bit When data "1" is input for the first time after the rise of CS, this is recognized as ...

Page 9

Write enable (WEN) / disable (WDS) cycle High-Z Fig. 38 Write enable (WEN) / disable (WDS) cycle At power on, this write disable status by the ...

Page 10

Application 1) Method to cancel each command READ Start bit Ope code 1 bit 2 bits Cancel is available in all areas in read mode. Method to cancel : cancel "L" Fig. 41 READ cancel available timing ...

Page 11

Equivalent circuit Output circuit OEint. Fig. 46 Output circuit Input circuit CSint. DI Fig. 48 Input circuit 4) I/O peripheral circuit 4-1) Pull down CS. By making CS = "L" at power ON/OFF, mistake in operation and mistake write ...

Page 12

... After the timer circuit in the IC works and creates the period of tE/W, this time circuit completes automatically. And write to the memory cell is made in the period of tE/W, and during this period, other command is not accepted. R/B display = "H" (READY) = command wait status (D0 status) Even after tE/W (Max ...

Page 13

When to directly connect DI and DO This IC has independent input terminal DI and output terminal DO, and separate signals are handled on timing chart, meanwhile, by inserting a resistance R between these DI and DO terminals, it ...

Page 14

Selection of resistance value R The resistance R becomes through current limit resistance at data collision. When through current flows, noises of power source line and instantaneous stop of power source may occur. When allowable through current is defined as ...

Page 15

Notes on power ON/OFF At power ON/OFF, set CS "L". When CS is "H", this IC gets in input accept status (active). If power is turned on in this status, noises and the likes may cause malfunction, mistake write ...

Page 16

Selection of order type BR 93 ROHM BUS type Operating temperature 93 : Microwire type name L:−40℃〜+85℃ A :−40℃〜+105℃ H :−40℃〜+125℃ Package specifications SOP8/SOP-J8/SSOP-B8/TSSOP-B8/TSSOP-B8J <External appearance> • SOP8 • SOP-J8 • SSOP-B8 4.9±0.2 5.0±0 ...

Page 17

Appendix No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product ...

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