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BU9832GUL-W_12 Datasheet, PDF (21/30 Pages) Rohm – WLCSP EEPROM | |||
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BU9832GUL-W (8Kbit)
Datasheet
âSO load capacity condition
Load capacity of SO output pin affects upon delay characteristic of SO output. (Data output delay time, time from HOLD
to High-Z) In order to make output delay characteristic into higher speed, make SO load capacity small. In concrete, âDo
not connect many devices to SO busâ, âMake the wire between the controller and EEPROM shortâ, and so forth.
tPD-CL characteristics
80
V c c =2.5Vã T a=25â
70 VIH/VIL=0.8Vcc/0.2Vcc
Spe c
60
Spe c
50
40
EEPROM
SO
CL
30
20
0
20
40
60
80
100 120
CL[pF]
Figure 50. SO load dependency of data output delay time
âOther cautions
Make the wire length from the microcontroller to EEPROM input signal same length, in order to prevent setup / hold
violation to EEPROM, owing to difference of wire length of each input.
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
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TSZ02201-0R2R0G100410-1-2
30.AUG.2012 Rev.001
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