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BR93H46RF-2LB Datasheet(HTML) 4 Page - Rohm

Part No. BR93H46RF-2LB
Description  Serial EEPROM Series Industrial EEPROM 125℃ Operation Microwire BUS EEPROM (3-wire)
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Maker  ROHM [Rohm]
Homepage  http://www.rohm.com
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BR93H46RF-2LB Datasheet(HTML) 4 Page - Rohm

 
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www.rohm.com
TSZ22111・15・001
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ02201-0R1R0G100250-1-2
BR93H46RF-2LB
27.Feb.2014 Rev.002
Serial Input / Output Timing
○Data is taken from DI, in sync with the rise of SK.
○At READ command, data is outputted from DO in sync with the rise of SK.
○After WRITE command input, the status signal of WRITE (READY / BUSY) can be monitored from DO by setting CS to “H”
after tCS, from the fall of CS, and will display a valid status until the next command start bit is inputted.
But, if CS is set to
“L”, DO sets to High-Z state.
○To execute a series of commands, CS is set to “L” once after completion of each command for internal circuit reset.
Block Diagram
Figure 1. Serial Input / Output Timing Diagram
tCSS
CS
SK
tDF
tSKH
tSKL
tCSH
STATUS VALID
DI
DO(READ)
DO(WRITE)
tDIH
tDIS
tPD0
tPD1
Command decode
Control
Clock generation
Power source voltage detection
Write
prohibition
High voltage occurrence
Command
register
Address
buffer
SK
DI
Dummy bit
DO
Data
register
R/W
amplifier
16bit
16bit
1,024 bit
EEPROM
CS
Address
decoder
6bit
6bit
Figure 3. Block Diagram


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