BR24H256FVT-5ACE2 ROHM

Datasheet Serial EEPROM Series for Automotive EEPROM 2 125 C Operation I C BUS EEPROM for Automotive (2-Wire) BR24H256xxx-5AC Series General Description Key Specifications BR24H256xxx-5AC Series is a 256 Kbit serial EEPROM Write Cycles: 4 Million Times (Ta=25 C) 2 of I C BUS Interface. Data Retention: 100 Years (Ta=25 C) Write Cycle Time: 3.5 ms (Max) Supply Voltage: 1.7 V to 5.5 V Features (Note 1) Ambient Operating Temperature: AEC-Q100 Qualified -40 C to +125 C All Controls Available by 2 Ports of Serial Clock (SCL) and Serial Data (SDA) 1.7 V to 5.5 V Wide Limit of Operating Voltage, Packages W(Typ) x D(Typ) x H(Max) Possible 1 MHz Operation SOP8 5.00 mm x 6.20 mm x 1.71 mm Page Write Mode 64 Byte SOP-J8 4.90 mm x 6.00 mm x 1.65 mm Bit Format 32K x 8 bit TSSOP-B8 3.00 mm x 6.40 mm x 1.20 mm Low Current Consumption MSOP8 2.90 mm x 4.00 mm x 0.90 mm Prevention of Miswriting VSON008X2030 2.00 mm x 3.00 mm x 0.60 mm WP (Write Protect) Function Added Prevention of Miswriting at Low Voltage Noise Filter Built-in SCL / SDA Pin Initial Delivery State FFh (Note 1) Grade 1 Applications SOP8 MSOP8 Automotive Camera Automotive Electronics Typical Application Circuit VCC SOP-J8 VSON008X2030 VCC A0 WP A1 * Micro- SCL A2 controller TSSOP-B8 SDA GND 0.1 F Figure 2 * Connect A0, A1, A2 to VCC or GND. These pins have pull-down elements inside the IC. If pins are open, they are the same as when they are connected to GND. Figure 1. Typical Application Circuit Product structure : Silicon integrated circuit This product has no designed protection against radioactive rays . www.rohm.com TSZ02201-0G1G0G100440-1-2 2018 ROHM Co., Ltd. All rights reserved. 1/35 TSZ22111 14 001 03.Jun.2020 Rev.003 BR24H256xxx-5AC Series Contents General Description ........................................................................................................................................................................ 1 Features.......................................................................................................................................................................................... 1 Applications .................................................................................................................................................................................... 1 Typical Application Circuit ............................................................................................................................................................... 1 Key Specifications ........................................................................................................................................................................... 1 Packages ........................................................................................................................................................................................ 1 Contents ......................................................................................................................................................................................... 2 Pin Configuration ............................................................................................................................................................................ 3 Pin Description ................................................................................................................................................................................ 3 Block Diagram ................................................................................................................................................................................ 3 Absolute Maximum Ratings ............................................................................................................................................................ 4 Thermal Resistance ........................................................................................................................................................................ 4 Operating Conditions ...................................................................................................................................................................... 5 Input / Output Capacitance ............................................................................................................................................................. 5 Input Impedance ............................................................................................................................................................................. 5 Memory Cell Characteristics ........................................................................................................................................................... 6 Electrical Characteristics................................................................................................................................................................. 6 AC Characteristics .......................................................................................................................................................................... 7 AC Characteristics Condition .......................................................................................................................................................... 7 Input / Output Timing ...................................................................................................................................................................... 8 Typical Performance Curves ........................................................................................................................................................... 9 2 I C BUS Communication ............................................................................................................................................................... 18 Write Command ............................................................................................................................................................................ 19 Read Command ............................................................................................................................................................................ 20 Method of Reset ........................................................................................................................................................................... 21 Acknowledge Polling ..................................................................................................................................................................... 21 WP Valid Timing (Write Cancel) .................................................................................................................................................... 22 Command Cancel by Start Condition and Stop Condition ............................................................................................................. 22 Application Examples ................................................................................................................................................................... 23 Caution on Power-Up Conditions .................................................................................................................................................. 25 Low Voltage Malfunction Prevention Function .............................................................................................................................. 25 I/O Equivalence Circuits ................................................................................................................................................................ 26 Operational Notes ......................................................................................................................................................................... 27 Ordering Information ..................................................................................................................................................................... 28 Lineup ........................................................................................................................................................................................... 28 Marking Diagrams ......................................................................................................................................................................... 29 Physical Dimension and Packing Information ............................................................................................................................... 30 Revision History ............................................................................................................................................................................ 35 www.rohm.com TSZ02201-0G1G0G100440-1-2 2018 ROHM Co., Ltd. All rights reserved. 2/35 TSZ22111 15 001 03.Jun.2020 Rev.003