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STRUCTURE PRODUCT
Silicon Monolithic Integrated Circuit SPI BUS 16Kbit (2,048x8bit) EEPROM
PART NUMBER
BR35H160-WC series
PACKAGE SOP8 SOP-J8 TSSOP-B8 MSOP8
PART NUMBER BR35H160F-WC BR35H160FJ-WC BR35H160FVT-WC BR35H160FVM-WC
FEATURES
Serial Peripheral Interface Single power supply (2.5V5.5V) 1,000,000 erase/write cycles endurance (85) 500,000 erase/write cycles endurance (105) 300,000 erase/write cycles endurance (125)
ABSOLUTE MAXIMUM RATING (Ta=25) Parameter Symbol Supply Voltage Vcc
Rating Unit V -0.36.5 560(BR35H160F-WC) *1 560(BR35H160FJ-WC) *2 Pd mW Power Dissipation 410(BR35H160FVT-WC) *3 380(BR35H160FVM-WC) *4 Tstg -65150 Storage Temperature Topr -40125 Operating Temperature Terminal Voltage -0.3Vcc+0.3 V * Degradation is done at 4.5mW/(1,2), 3.3mW/(3), 3.1mW/(4) for operation above 25
RECOMMENDED OPERATING CONDITION Parameter Symbol Rating Supply Voltage Vcc 2.55.5 Input Voltage VIN 0Vcc
Unit V V
REV. B
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MEMORY CELL CHARACTERISTICS(Vcc=2.55.5V)
Parameter Specification Min. 1,000,000 Write/Erase Cycle *1 500,000 300,000 Data Retention *1 40 20 Typ. Max. Unit Cycle Cycle Cycle Year Year Test Condition Ta85 Ta105 Ta125 Ta25 Ta125
Initial DataMemory array FFh *1 Not 100% TESTED
DC OPERATING CHARACTERISTICS
(Unless otherwise specified Ta=-40125, Vcc=2.55.5V)
Parameter "H" Input Voltage "L" Input Voltage "L" Output Voltage "H" Output Voltage Input Leakage Current
Output Leakage Current
AC OPERATING CHARACTERISTICS
(Unless otherwise specified Ta=-40125, CL=100pF)
test condition Parameter SCK clock Frequency SCK High Time SCK Low Time CS High Time CS Setup Time CS Hold Time SCK Setup Time SCK Hold Time SI Setup Time SI Hold Time Output Data Delay Time1
Output Data Delay Time2 (CL=30pF)
Symbol VIH1 VIL1 VOL VOH ILI ILO ICC1
Specification Min. Typ. Max.
0.7xVcc
Unit V V V V
Symbol fSCK tSCKWH tSCKWL tCS tCSS tCSH tSCKS tSCKH tDIS tDIH tPD1 tPD2 tOH tOZ *1 *1 *1 *1 tRC tFC tRO tFO tE/W
2.5VVCC5.5V Min. 85 85 85 90 85 90 90 20 30 0 Typ. Max. 5 70 55 100 1 1 50 50 5
Unit MHz ns ns ns ns ns ns ns ns ns ns ns ns ns s s ns ns ms

Vcc+0.3
2.5VVcc5.5V 2.5VVcc5.5V IOL=2.1mA (Vcc=2.5V5.5V) IOH=-0.4mA (Vcc=2.5V5.5V)
-0.3 0
Vcc-0.5
0.3xVcc
0.4 Vcc 10 10 2 3 1.5 2
-10 -10
A VIN=0VVcc A VOUT=0VVcc , CSB=Vcc mA mA mA mA Vcc=2.5V , fSCK=5MHz , tE/W=5ms Byte WritePage Write Vcc=5.5V , fSCK=5MHz , tE/W=5ms Byte WritePage Write Vcc=2.5V , fSCK=5MHz ReadRead Status Register Vcc=5.5V , fSCK=5MHz ReadRead Status Register Vcc=5.5V
Operating Current Write ICC2 ICC3 Operating Current Read ICC4
Output Hold Time Output Disable Time SCK Rise Time SCK Fall Time Output Rise Time Output Fall Time Write Cycle Time
Standby Current
ISB
10
A CSB=Vcc SCK=SI=Vcc or GND, SO=OPEN
This product is not designed for protection against radioactive rays.
1Not 100% TESTED
BLOCKDIAGRAM
PIN No. / PIN NAME PIN No. 1 2 3 4 5 6 7 8 PIN NAME CSB SO NC GND SI SCK NC VCC
CSB
1
INSTRUCTION DECODE CONTROL CLOCK GENERATION WRITE
VOLTAGE DETECTION
8 VCC
HIGH VOLTAGE GENERATOR
SO
2
INSTRUCTION REGISTER
INHIBITION
7 NC
STATUS REGISTER
NC
3
ADDRESS REGISTER
11bit
ADDRESS DECODER READ/WRITE
11bit
6 SCK
16,384bit EEPROM
DATA
GND
4
REGISTER
8bit
AMP
8bit
5 SI
Fig.1BLOCKDIAGRAM
REV. B
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NOTES FOR POWER SUPPLY In order to prevent an inadvertent write, the device has the feature of P.O.R. After the power is on, the device is in the write disable mode. P.O.R. works only during power up. The noise may force the device write enable mode with CS="H"during power ON/OFF. In the case of power up, keep the following conditions to ensure to make the function of P.O.R. tR RECOMMENDED CONDITIONS OF tR, tOFF, Vbot Vcc tR tOFF Vbot Below 10ms Above 10ms Below 0.3V tOFF Vbot Below 100ms Above 10ms Below 0.2V
0 Fig.2 Vcc waveform
Please keep CS "H" during power ON/OFF. The device is an active state during CS is low. The extraordinary function or data collaption may occur because of noise etc., if power-up is done with CS "L". In order to prevent above errors from happening, keep CS "H" (=Vcc) during power ON. (The device does not receive any command during CS is high.) It may continue at low Vcc by capacitance of Vcc line during power off. Please keep CS "H" during power off because of the device may make malfunction and inadvertent write.
Good Bad
Good example CS follows Vcc. (CS is pull up to Vcc) Bad example CS is low during power ON/OFF. Please take more than 10ms between power ON and power OFF, or the internal circuit is not always reset.
Fig.3CS TIMING DURING POWER ON/OFF
CAUTIONS ON USE (1) Absolute maximum ratings If the absolute maximum ratings such as impressed voltage and operating temperature range and so forth are exceeded LSI may be destructed. Do not impress voltage and temperature exceeding the absolute maximum ratings. In the case of fear exceeding the absolute maximum ratings, take physical safety countermeasures such as fuses, and see to it that conditions exceeding the absolute maximum ratings should not be impressed to LSI. (2) GND electric potential Set the voltage of GND terminal lowest at any action condition. Make sure that each terminal voltages is lower than that of GND terminal. (3) Heat design In consideration of permissible dissipation in actual use condition, carry out heat design with sufficient margin. (4) Terminal to terminal shortcircuit and wrong packaging When to package LSI onto a board, pay sufficient attention to LSI direction and displacement. Wrong packaging may destruct LSI. And in the case of shortcircuit between LSI terminals and terminals and power source, terminal and GND owing to foreign matter, LSI may be destructed. (5) Strong electromagnetic field Use in a strong electromagnetic field may cause malfunction, therefore, evaluated design sufficiently.
REV. B
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PHYSICAL DIMENSION
5.00.2
MAX5.35 (include.BURR)
Product NameBR35H160F-WC
4 -4
+6
Product NameBR35H160FJ-WC
8
7
6
5
16H
6.20.3 4.40.2 0.3MIN 0.90.15
16H
1 0.595
2
3
4
LOT NO
0.17 -0.05
+0.1
LOT NO
1.50.1 0.11
1.27
0.420.1 DrawingNo. : EX112-5002 (UNIT:mm) DrawingNo. : EX111-5002 (UNIT:mm)
Fig.4-(a)PHYSICAL DIMENSION SOP-8 (BR35H160F-WC)
Fig.4-(b)PHYSICAL DIMENSION SOP-J8 (BR35H160FJ-WC)
3.00.1 2.90.1
MAX3.25 (include.BURR)
Product Name BR35H160FVT-WC
44 5
Product NameBR35H160FVM-WC
4 -4
+6
MAX3.35 (include.BURR)
8
7
6
8
7
6
5
6.40.2 4.40.1
4.00.2 2.80.1
0.290.15 0.60.2
16H
1
6
H
0.50.15
1 2 3 4
0.475
1
2
1PIN MARK
3
4
LOT NO
LOT NO
0.145 -0.03
+0.05
0.525 1.2MAX 0.10.05 1.00.05
1PIN MARK
0.145 +0.05 -0.03
0.750.05 0.080.05
0.22 -0.04
+0.05
0.65
0.08 S 0.245 +0.05 0.08 M -0.04 DrawingNo. :165-5002 (UNIT:mm)
DrawingNo. :181-5002 (UNIT:mm)
Fig.4-(c)PHYSICAL DIMENSIONMSOP8BR35H160FVM-WC
Fig.4-(d) PHYSICAL DIMENSION TSSOP-B8BR35H160FVT-WC
REV. B
1.00.2
Notice
Notes
No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. Great care was taken in ensuring the accuracy of the information specified in this document. However, should you incur any damage arising from any inaccuracy or misprint of such information, ROHM shall bear no responsibility for such damage. The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM and other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. The Products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices). The Products specified in this document are not designed to be radiation tolerant. While ROHM always makes efforts to enhance the quality and reliability of its Products, a Product may fail or malfunction for a variety of reasons. Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM shall bear no responsibility whatsoever for your use of any Product outside of the prescribed scope or not in accordance with the instruction manual. The Products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuelcontroller or other safety device). ROHM shall bear no responsibility in any way for use of any of the Products for the above special purposes. If a Product is intended to be used for any such special purpose, please contact a ROHM sales representative before purchasing. If you intend to export or ship overseas any Product or technology specified herein that may be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to obtain a license or permit under the Law.
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R1010A

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