參數(shù)資料
型號: U630H64SK35
英文描述: NVRAM (EEPROM Based)
中文描述: NVRAM中(EEPROM的基礎(chǔ))
文件頁數(shù): 5/14頁
文件大?。?/td> 143K
代理商: U630H64SK35
5
November 01, 2001
U630H64
High Impedance
Read Cycle 1: Ai-controlled (during Read cycle: E = G = V
IL
, W = NE = V
IH
)
f
t
a(A)
Previous Data Valid
Output Data Valid
t
cR
Address Valid
t
v(A)
Ai
DQi
Output
Read Cycle 2: G-, E-controlled (during Read cycle: W = NE = V
IH
)
g
Ai
E
G
t
dis(E)
t
cR
t
a(E)
t
en(E)
t
en(G)
t
a(G)
t
dis(G)
Address Valid
t
a(A)
(2)
Output Data Valid
I
CC
ACTIVE
STANDBY
t
PD
t
PU
No.Switching Characteristics
Write Cycle
Symbol
25
35
45
Unit
Alt. #1
Alt. #2
IEC
Min. Max. Min. Max. Min. Max.
12 Write Cycle Time
t
AVAV
t
AVAV
t
cW
25
35
45
ns
13 Write Pulse Width
t
WLWH
t
w(W)
20
30
35
ns
14 Write Pulse Width Setup Time
t
WLEH
t
su(W)
20
30
35
ns
15 Address Setup Time
t
AVWL
t
AVEL
t
su(A)
0
0
0
ns
16 Address Valid to End of Write
t
AVWH
t
AVEH
t
su(A-WH)
20
30
35
ns
17 Chip Enable Setup Time
t
ELWH
t
su(E)
20
30
35
ns
18 Chip Enable to End of Write
t
ELEH
t
w(E)
20
30
35
ns
19 Data Setup Time to End of Write
t
DVWH
t
DVEH
t
su(D)
12
18
20
ns
20 Data Hold Time after End of Write
t
WHDX
t
EHDX
t
h(D)
0
0
0
ns
21 Address Hold after End of Write
t
WHAX
t
EHAX
t
h(A)
0
0
0
ns
22 W LOW to Output in High-Z
h, i
t
WLQZ
t
dis(W)
10
13
15
ns
23 W HIGH to Output in Low-Z
t
WHQX
t
en(W)
5
5
5
ns
(1)
(2)
(9)
(1)
(3)
(4)
(5)
(7)
(6)
(8)
10
(11)
DQi
Output
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