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PDF BR24S256-W Data sheet ( Hoja de datos )
| Número de pieza | BR24S256-W | |
| Descripción | Standard EEPROM | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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Datasheet
Serial EEPROM series Standard EEPROM
I2C BUS EEPROM (2-Wire)
BR24Sxxx-W
(8K 16K 32K 64K 128K 256K)
●General Description
BR24Sxxx-W is a serial EEPROM of I2C BUS interface method
●Features
Completely conforming to the world standard I2C
BUS.
All controls available by 2 ports of serial clock
(SCL) and serial data (SDA)
Other devices than EEPROM can be connected to
the same port, saving microcontroller port
1.7V to 5.5V single power source action most suitable
for battery use
FAST MODE 400kHz at 1.7V to 5.5V
Page write mode useful for initial value write at
factory shipment
Highly reliable connection by Au pad and Au wire
Auto erase and auto end function at data rewrite
Low current consumption
¾ At write operation (5V)
: 0.5mA (Typ.)
¾ At read operation (5V)
: 0.2mA (Typ.)
¾ At standby operation (5V) : 0.1μA (Typ.)
Write mistake prevention function
¾ Write (write protect) function added
¾ Write mistake prevention function at low voltage
Data rewrite up to 1,000,000 times
Data kept for 40 years
Noise filter built in SCL / SDA terminal
Shipment data all address FFh
●Packages W(Typ.) x D(Typ.) x H(Max.)
SOP8
5.00mm x 6.20mm x 1.71mm
TSSOP-B8
3.00mm x 6.40mm x 1.20mm
SOP- J8
4.90mm x 6.00mm x 1.65mm
TSSOP-B8J
3.00mm x 4.90mm x 1.10mm
SSOP-B8
3.00mm x 6.40mm x 1.35mm
MSOP8
2.90mm x 4.00mm x 0.90mm
VSON008X2030
2.00mm x 3.00mm x 0.60mm
●Page write
Number of pages
Product number
16Byte
BR24S08-W
BR24S16-W
32Byte
BR24S32-W
BR24S64-W
64Byte
BR24S128-W
BR24S256-W
●BR24Sxxx-W
Capacity
Bit
format
Type
Power source
voltage
8Kbit 1K×8 BR24S08-W 1.7V to 5.5V
16Kbit 2K×8 BR24S16-W 1.7V to 5.5V
32Kbit 4K×8 BR24S32-W 1.7V to 5.5V
64Kbit 8K×8 BR24S64-W 1.7V to 5.5V
128Kbit 16K×8 BR24S128-W 1.7V to 5.5V
256Kbit 32K×8 BR24S256-W 1.7V to 5.5V
SOP8
●
●
●
●
●
●
SOP-J8
●
●
●
●
●
●
SSOP-B8 TSSOP-B8
●●
●●
●●
●●
●●
MSOP8
TSSOP-B8J
VSON008
X2030
●●●
●●●
●●●
●●
○Product structure：Silicon monolithic integrated circuit
www.rohm.com
©2012 ROHM Co., Ltd. All rights reserved.
TSZ22111･14･001
○This product is not designed protection against radioactive rays
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TSZ02201-0R2R0G100320-1-2
20.AUG.2012 Rev.001
1 page  
BR24Sxxx-W (8K 16K 32K 64K 128K 256K)
●Typical Performance Curves
(The following values are Typ. ones.)
Datasheet
Figure 2. "H" Input Voltage VIH
(A0, A1, A2, SCL, SDA, WP)
Figure 3. "L" Input Voltage VIL
(A0, A1, A2, SCL, SDA, WP)
Figure 4. "L" Output Voltage
VOL-IOL1(Vcc=1.7V)
Figure 5. "L" Output Voltage VOL-IOL
(Vcc=2.5V)
www.rohm.com
©2012 ROHM Co., Ltd. All rights reserved.
TSZ22111･15･001
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TSZ02201-0R2R0G100320-1-2
20.AUG.2012 Rev.001
5 Page 
BR24Sxxx-W (8K 16K 32K 64K 128K 256K)
●Typical Performance Curves‐Continued
Datasheet
Figure 26. Noise reduction effective time tl(SCL L)
Figure 27. Noise reduction effective time tl(SDA H)
Figure 28. Noise reduction effective time tI (SDA L)
Figure 29. WP setup time tSU:WP
www.rohm.com
©2012 ROHM Co., Ltd. All rights reserved.
TSZ22111･15･001
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TSZ02201-0R2R0G100320-1-2
20.AUG.2012 Rev.001
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet BR24S256-W.PDF ] | |
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