參數(shù)資料
型號(hào): UPD46128512-X
廠商: NEC Corp.
英文描述: 128M-BIT CMOS MOBILE SPECIFIED RAM 8M-WORD BY 16-BIT EXTENDED TEMPERATURE OPERATION
中文描述: 128兆位CMOS移動(dòng)指明內(nèi)存800萬字由16位溫度范圍
文件頁數(shù): 12/82頁
文件大小: 817K
代理商: UPD46128512-X
P
1
μ
P
Note
Case “Initialization Timing 2” : Following initialization, set mode register.
Figure 2-1. Standby Mode State Machine
Power On
Active
/CE1 = V
IH
,
CE2 = V
IH
Standby
Mode1
/CE1 = V
IH
,
CE2 = V
IL
Burst Mode
Burst Mode
CE2 = V
IL
CE2 = V
IL
(RP=1)
/CE1 = V
IL
,
CE2 = V
IH
/CE1 = V
IH
,
CE2 = V
IH
/CE1 = V
IH
,
CE2 = V
IL
/CE1 = V
IH
,
CE2 = V
IH
/CE1 = V
IL
,
CE2 = V
IH
/CE1 = V
IH
,
CE2 = V
IH
/CE1 = V
IH
,
CE2 = V
IH
/CE1 = V
IH
,
CE2 = V
IL
(RP=1)
/CE1 = V
IH
,
CE2 = V
IL
(RP=1)
/CE1 = V
IH
,
CE2 = V
IH
/CE1 = V
IH
,
CE2 = V
IL
(RP=0)
CE2 = V
IL
(RP=0)
Mode Register
Setting
CE2 = V
IL
(RP=0)
/CE1 = V
IH
,
CE2 = V
IL
(RP=0)
Initialize
Note
Standby Mode2
(Data not held)
Active
Standby
Mode1
Standby Mode2
(32Mbit/16Mbit/8Mbit)
Standby Mode2
(32Mbit/16Mbit/8Mbit)
Standby Mode2
(Data not held)
Page Mode
Initialize
CE2 = V
IL
CE2 = V
IL
(RP=1)
Page Mode
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