BR24L04F-WE2 Rohm Semiconductor, BR24L04F-WE2 Datasheet

IC EEPROM 4KBIT 400KHZ 8SOP

BR24L04F-WE2

Manufacturer Part Number
BR24L04F-WE2
Description
IC EEPROM 4KBIT 400KHZ 8SOP
Manufacturer
Rohm Semiconductor
Datasheets

Specifications of BR24L04F-WE2

Memory Size
4K (512 x 8)
Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Speed
400kHz
Interface
I²C, 2-Wire Serial
Voltage - Supply
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
8-SOP
Clock Frequency
400kHz
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
Organization
512 K x 8
Interface Type
I2C
Maximum Clock Frequency
0.4 MHz
Supply Voltage (max)
5.5 V
Supply Voltage (min)
1.8 V
Maximum Operating Current
2 mA
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
1.8 V, 5.5 V
Memory Configuration
512 X 8
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
BR24L04F-WE2
BR24L04F-WE2TR

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HIGH GRADE Specification HIGH RELIABILITY series
HIGH GRADE Specification HIGH RELIABILITY series
I
Supply voltage 1.8V~5.5V
Operating temperature –40°C~+85°C type
BR24L01A-W, BR24L02-W, BR24L04-W, BR24L08-W, BR24L16-W, BR24L32-W, BR24L64-W
2
Description
BR24L
Features
BR24L series
C BUS Serial EEPROMs
Completely conforming to the world standard I
Other devices than EEPROM can be connected to the same port, saving microcontroller port
1.8 ~ 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
Write mistake prevention function
SOP8/SOP-J8/SSOP-B8/TSSOP-B8/MSOP8/TSSOP-B8J compact package
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
Capacity
32Kbit
64Kbit
16Kbit
At write action (5V)
At read action (5V)
At standby action (5V) : 0.1µA (Typ.)
Write (write protect) function added
Write mistake prevention function at low voltage
1Kbit
2Kbit
4Kbit
8Kbit
-W series is a serial EEPROM of I
*1
single power source action most suitable for battery use
Bit format
128 × 8
256 × 8
512 × 8
2K × 8
4K × 8
8K × 8
1K × 8
: 1.2mA (Typ.)
: 0.2mA (Typ.)
*1 BR24L16-W, BR24L32-W : 1.7~5.5V
*2 BR24L32-W, BR24L64-W: 1.5mA
*3 BR24L32-W: SOP8/SOP-J8/
*4 BR24L64-W: SOP8/SOP-J8
SSOP-B8/TSSOP-B8
TECHNICAL NOTE
BR24L01A-W
BR24L02-W
BR24L04-W
BR24L08-W
BR24L16-W
BR24L32-W
BR24L64-W
Type
*2
2
C BUS interface method.
2
C BUS. All controls available by 2 ports of serial clock (SCL) and serial data (SDA)
Power source
1.8 ~ 5.5V
1.8 ~ 5.5V
1.8 ~ 5.5V
1.8 ~ 5.5V
1.7 ~ 5.5V
1.7 ~ 5.5V
1.8 ~ 5.5V
voltage
Page write
Number of
Product
number
pages
SOP8
*3 *4
BR24L01A-W
BR24L02-W
SOP-J8
8 Byte
SSOP-B8
BR24L04-W
BR24L08-W
BR24L16-W
16 Byte
TSSOP-B8
MSOP8
BR24L32-W
BR24L64-W
Ver.B Oct.2005
32 Byte
TSSOP-B8J

Related parts for BR24L04F-WE2

BR24L04F-WE2 Summary of contents

Page 1

TECHNICAL NOTE HIGH GRADE Specification HIGH RELIABILITY series HIGH GRADE Specification HIGH RELIABILITY series I C BUS Serial EEPROMs 2 Supply voltage 1.8V~5.5V Operating temperature –40°C~+85°C type BR24L01A-W, BR24L02-W, BR24L04-W, BR24L08-W, BR24L16-W, BR24L32-W, BR24L64-W Description BR24L -W series is a ...

Page 2

... By setting WP "HIGH" in the area, write can be cancelled. When it is set WP = "HIGH" during tWR, write is forcibly ended, and data of address under access is not guaranteed, therefore write it once again Start condition 2/16 Memory cell characteristics (Ta = 25˚C, Vcc = 1.8 ~ 5.5V) Unit Parameter V Min. *2 ...

Page 3

Block diagram * GND 4 Pin assignment and description BR24L01A BR24L02-W BR24L04-W BR24L08 BR24L16-W A2 SCL BR24L32-W BR24L64-W 4 ...

Page 4

Characteristic data 2.5 [BR24L01A/02/04/08/16 series] SPEC 2 f =400kHz SCL DATA=AAh 1.5 Ta=25˚C 1 Ta=85˚C Ta=-40˚C 0 SUPPLY VOLTAGE : V (V) CC Fig.9 Consumption current at write action I (f =400kHz) ...

Page 5

Characteristic data 300 SPEC2 200 SPEC1 : FAST-MODE SPEC2 : STANDARD-MODE SPEC1 100 Ta=85˚C 0 Ta=25˚C Ta=-40˚C -100 -200 SUPPLY VOLTAGE : V (V) CC Fig.24 Input data setup time t (LOW) SU:DAT 5 ...

Page 6

I2C BUS communication BUS data communication BUS data communication starts by start condition input, and ends by stop condition input. Data is always 8bit long, and acknowledge is always required after each byte. I ...

Page 7

... Fig.39 Page write cycle (BR24L32/64-W) Data is written to the address designated by word address (n-th address). By issuing stop bit after 8bit data input, write to memory cell inside starts. When internal write is started, command is not accepted for tWR (5ms at maximum). By page write cycle, the following can be written in bulk bytes (BR24L01A-W, BR24L02-W) And when data of the maximum bytes or higher is sent, data from the first byte is overwritten. (Refer to " ...

Page 8

Notes on write cycle continuous input SLAVE WORD R T ADDRESS (n) T ADDRESS E *1 SDA LINE Note ...

Page 9

Command Read cycle Data of EEPROM is read. In read cycle, there are random read cycle and current read cycle. Random read cycle is a command to read data by designating address, and is used generally. Current read cycle is ...

Page 10

Software reset Software reset is executed when to avoid malfunction after power on, and to reset during command input. Software reset has several kinds, and 3 kinds of them are shown in the figure below. (Refer to Fig. 48 (a), ...

Page 11

WP valid timing (write cancel usually fixed to "H" or "L", but when WP is used to cancel write cycle and so forth, pay attention to the following WP valid timing. During write cycle execution, in cancel valid ...

Page 12

I/O peripheral circuit Pull up resistance of SDA terminal SDA is NMOS open drain, so requires pull up resistance. As for this resistance value (R value from microcontroller and the larger the consumption ...

Page 13

Cautions on microcontroller connection BUS recommended that SDA port is of open drain input /output. However, when to use CMOS input / output of tri state to SDA port, insert a series resistance ...

Page 14

I C BUS input / output circuit Input (A0, A2, SCL) Input / output (SDA) Input (A1, WP) Fig.57 Input pin circuit diagram Fig.58 Input / output pin circuit diagram Fig.59 Input pin circuit diagram 14/16 ...

Page 15

Notes on power ON At power on internal circuit and set, Vcc rises through unstable low voltage area, and IC inside is not completely reset, and malfunction may occur. To prevent this, functions of POR circuit and LVCC ...

Page 16

Selection of order type ROHM type BUS type Operating temperature name −40℃〜+85℃ −40℃〜+125℃ Package specifications SOP8/SOP-J8/SSOP-B8/TSSOP-B8/TSSOP-B8J <External appearance> • SOP8 • SOP-J8 • SSOP-B8 3.0±0.2 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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