BU9891GUL-W Rohm, BU9891GUL-W Datasheet - Page 3

• Manufacturer Part Number: BU9891GUL-W
• Description: WL-CSP EEPROM family Microwire Bus
• Manufacturer: Rohm

●Action timing characteristics
●Sync data input / output timing
© 2010 ROHM Co., Ltd. All rights reserved.
BU9891GUL-W
www.rohm.com
(Ta=-40~+85℃, VCC=2.5~5.5V)
(Ta=-40~+85℃, VCC=1.7~2.5V)
○Data is taken by DI sync with the rise of SK.
○At read action, data is output from DO in sync with the rise of SK.
○The status signal at write (READY / BUSY) is output after tCS from the fall of CS after write command input, at the area
○After completion of each mode execution, set CS “L” once for internal circuit reset, and execute the following action mode.
SK frequency
SK “H” time
SK “L” time
CS “L” time
CS setup time
DI setup time
CS hold time
DI hold time
Data “1” output delay time
Data “0” output delay time
Time from CS to output establishment
Time from CS to High-Z
Write cycle time
SK frequency
SK “H” time
SK “L” time
CS “L” time
CS setup time
DI setup time
CS hold time
DI hold time
Data “1” output delay time
Data “0” output delay time
Time from CS to output establishment
Time from CS to High-Z
Write cycle time
DO where CS is “H”, and valid until the next command start bit is input. And, while CS is “L”, DO becomes High-Z.
DO(WRITE)
DO(READ)
Parameter
Parameter
CS
DI
SK
tDIS
tCSS
Fig.1 Sync data input / output timing
t PD0
tSKH
tDI H
Symbol
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
STATUS VALID
f
SKH
CSS
CSH
t
t
f
SKH
CSS
CSH
t
t
SKL
PD1
PD0
E/W
SKL
PD1
PD0
E/W
DIS
DIH
DIS
DIH
CS
CS
SK
SV
DF
SK
SV
DF
tSKL
3/17
www.DataSheet.co.kr
Min.
Min.
230
230
200
200
100
100
200
100
100
tPD1
0.8
0.8
0
1
0
-
-
-
-
-
-
-
-
-
-
-
-
2.5V≦VCC≦5.5V
1.7V≦VCC≦2.5V
Typ.
Typ.
tCSH
tDF
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Max.
Max.
200
200
150
150
500
200
0.7
0.7
0.7
2
5
5
-
-
-
-
-
-
-
-
-
-
-
-
-
-
MHz
Unit
Unit
kHz
ms
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
us
us
us
ns
ns
ns
ns
us
us
us
ns
Technical Note
2010.07 - Rev.A
Datasheet pdf - http://www.DataSheet4U.net/