參數(shù)資料
型號: UPD46128512F9-CR2
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移動指明內(nèi)存800萬字由16位溫度范圍
文件頁數(shù): 36/82頁
文件大?。?/td> 817K
代理商: UPD46128512F9-CR2
Preliminary Data Sheet M17507EJ2V0DS
36
μ
PD46128512-X
7. Asynchronous AC Specification, Timing Chart
Asynchronous Read Cycle
Parameter
Symbol
-E9X, -E11X
-E10X, -E12X
Unit
Note
MIN.
MAX.
MIN.
MAX.
Read cycle time
t
RC
70
85
ns
1
Address access time
t
AA
70
85
ns
/CE1 access time
t
ACE
70
85
ns
/OE to output valid
t
OE
45
60
ns
/LB, /UB to output valid
t
BA
45
60
ns
Output hold from address change
t
OH
3
3
ns
Page read cycle time
t
PRC
20
25
ns
Page access time
t
PAA
20
25
ns
/CE1 to output in low impedance
t
CLZ
10
10
ns
2
/OE to output in low impedance
t
OLZ
5
5
ns
/LB, /UB to output in low impedance
t
BLZ
5
5
ns
/CE1 to output in high impedance
t
CHZ
9
9
ns
/OE to output in high impedance
t
OHZ
9
9
ns
/LB, /UB to output in high impedance
t
BHZ
9
9
ns
Address set to /CE1 LOW
t
ASC
–15
–15
ns
Address invalid time
t
AX
15
15
ns
3
Address set to /OE LOW
t
ASO
0
5
0
5
ns
/OE HIGH to address hold
t
OHAH
ns
/CE1 HIGH to address hold
t
CHAH
0
5
0
5
ns
4
/CE1 LOW to /OE LOW
t
CLOL
+
10,000
+
10,000
ns
/OE LOW to /CE1 HIGH
t
OLCH
45
60
ns
Address set to /ADV HIGH
t
ASV
7
7
ns
/ADV HIGH to address hold
t
AH
3
3
ns
/ADV LOW pulse width
t
VPL
7
7
ns
/CE1 HIGH pulse width
t
CP
10
10
ns
/LB, /UB HIGH pulse width
t
BP
10
10
ns
/OE HIGH pulse width
t
OP
10
10,000
10
10,000
ns
5
/OE HIGH to /WE set
t
OES
10
10,000
10
10,000
ns
/WE HIGH to /OE set
t
OEH
10
10,000
10
10,000
ns
Notes 1.
Output load: 30 pF
2.
Output load: 5 pF
3.
t
AX
(MAX.) is applied while /CE1, /OE and /ADV are being hold at LOW.
4.
When t
ASO
| t
CHAH
|, t
CHAH
(MIN.) is
15 ns.
t
CHAH
t
ASO
/CE1 (Input)
Address (Input)
/OE (Input)
5.
t
OP
, t
OES
and t
OEH
(MAX.) are applied while /CE1 is being hold at LOW.
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