BR35H160-WC ROHM Co. Ltd., BR35H160-WC Datasheet - Page 3

• Manufacturer Part Number: BR35H160-WC
• Description: Automotive Serial Eeproms
• Manufacturer: ROHM Co. Ltd.

●Pin Assignment and Description
●Operating Timing Characteristics
●AC measurement conditions
●tOZ measurement condition
© 2011 ROHM Co., Ltd. All rights reserved.
BR35H□□□-WC Series
www.rohm.com
(Ta=-40℃ to +125℃, unless otherwise specified, load capacitance C
SCK frequency
SCK high time
SCK low time
CSB high time
CSB setup time
CSB hold time
SCK setup time
SCK hold time
SI setup time
SI hold time
Data output delay time1
Data output delay time2
(C
Output hold time
Output disable time
SCK rise time
SCK fall time
OUTPUT
rise time
OUTPUT
fall time
Write time
Load capacitance 1
Load capacitance 2
Input rise time
Input fall time
Input voltage
Input / Output judgment voltage
IL is the load current that changes the SO voltage to 0.5×Vcc. IL = ±1mA.
After CSB starts to rise, the time needed for SO to change to High-Z is defined with 10% changing point from SO=High or
SO=Low.
L2
＊
Fig.2 Pin Assignment Diagram
=30pF)
1 NOT 100% TESTED
CSB
Vcc
Parameter
IL=±1mA
BR35H160-WC
BR35H320-WC
BR35H640-WC
BR35H128-WC
NC
SO
Parameter
SCK
NC
Fig.5
Signal Input
CL1=100pF
*1
GND
SI
tOZ measurement circuit
CSB
SO
NC
GND
tSCKWH
tSCKWL
Symbol
tSCKH
tSCKS
tCSH
fSCK
tCSS
tPD1
tPD2
tE/W
tDIS
tDIH
tCS
tOH
tRC
tRO
tFO
tOZ
tFC
SCK
Vcc
Terminal Name
NC
SI
Min.
Symbol
85
85
85
90
85
90
90
20
30
2.5≦Vcc≦5.5V
0
-
-
-
-
-
-
-
-
-
Signal Input
Signal Input
C
C
GND
CSB
SCK
Vcc
-
-
-
-
SO
NC
L1
L2
SI
Typ.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Min.
Max.
100
-
-
-
-
70
55
50
50
5
1
1
5
-
-
-
-
-
-
-
-
-
-
0.2Vcc / 0.8Vcc
0.3Vcc / 0.7Vcc
CSB
SO
Input/Output
3/16
Output
L1
Input
Input
Input
MHz
Limits
Unit
=100pF)
ms
Typ.
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
μs
μs
ns
ns
–
–
–
High
Low
-
-
-
-
Fig.6
SCK
CSB
Max.
SI
SO
SCK
100
●Sync data input / output timing
CSB
SO
Power Supply to be connected
All input / output reference voltage, 0V
Chip select input
Serial clock input
Start bit, ope code, address, and serial data input
Serial data output
Non connection
SI
30
50
50
Data through SI enters the IC in sync with the data
rise edge of SCK. Please input address and data
starting from the most significant bit MSB.
Data through SO is output in sync with the data fall
edge of SCK. Data is output starting from the most
significant bit MSB.
tSCKS
tCS
tOZ measurement timing
Unit
pF
pF
ns
ns
V
V
tPD
tCSS
0.9Vcc
0.1Vcc
0.7Vcc
Fig.4 Input / Output timing
Fig.3 Input timing
tOH
0.2Vcc
0.5Vcc
0.8Vcc
Function
High-Z
tSCKWL
tDIS tDIH
tSCKWH
tRO,tFO
Technical Note
2011.03 - Rev.C
tCSH tSCKH
tOZ
tCS
tRC
tFC
High-Z