參數(shù)資料
型號(hào)： UPD16664N
廠商： NEC Corp.
英文描述： RF CONNECTOR; 50 OHM REVERSE POLARITY BNC FEMALE BULKHEAD, CRIMP ATTACHMENT FOR RG58; *MEETS FCC PART 15.203 REQUIREMENTS*
中文描述： 144/160/184/208-OUTPUT液晶柱段驅(qū)動(dòng)與RAM
文件頁(yè)數(shù)： 39/52頁(yè)
文件大?。?/td> 347K
代理商： UPD16664N
Data Sheet S13780EJ1V0DS00
39
μ
PD16664
AC Characteristics 2 Drawing Access Timing
(Unless otherwise specified, V
CC1
= 4.5 to 5.5 V, V
0
= 0 V, V
1
= 1.4 to 2.0 V, V
2
= 2.8 to 4.0 V, T
A
= –20 to +70°C,
t
r
= t
f
= 5 ns)
{
V
CC2
= 3.0 to 3.6 V
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
/OE,/WE recovery time
t
RY
30
ns
Address setup time
t
AS
10
ns
Address hold time
t
AH
20
ns
RDY output delay time
t
RYR
C
L
= 15 pF
30
ns
RDY float time
Note 1
t
RYZ
30
ns
Wait status time
Note 2
t
RYW
35
ns
Ready status time (without conflict)
Note 2
t
RYF1
60
100
ns
Ready status time (with conflict)
Note 2
t
RYF2
650
1200
ns
Data access time (read cycle)
Note 3
t
ACS
100
ns
Data float time (read cycle)
Note 1
t
HZ
40
ns
/CS - /OE time (read cycle)
t
CSOE
10
ns
/OE - /CS time (read cycle)
t
OECS
20
ns
Write pulse width 1 (write cycle 1)
Note 2
t
WP1
50
ns
Write pulse width 2 (write cycle 2)
Note 2
t
WP2
50
ns
Data setup time (write cycles 1, 2)
t
DW
20
ns
Data hold time (write cycles 1, 2)
t
DH
20
ns
/CS - /WE time (write cycles 1, 2)
t
CSWE
10
ns
/WE - /CS time (write cycles 1, 2)
t
WECS
20
ns
Reset pulse width
t
WRES
100
ns
RDY - /OE time
t
RDOE
Note 4
–
RDY - /WE time
t
RDWE
Note 4
–
Notes 1.
Load circuit
1.0 k
1.8 k
V
CC2
5 pF
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