參數資料
型號： UPD442000AGU-DD85X-9JH
廠商： NEC Corp.
元件分類： 圓形連接器
英文描述： Circular Connector; No. of Contacts:10; Series:MS27468; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:13; Circular Contact Gender:Pin; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:13-98 RoHS Compliant: No
中文描述： 200萬位CMOS靜態(tài)RAM 256K字× 8位擴展工作溫度
文件頁數： 2/28頁
文件大小： 157K
代理商： UPD442000AGU-DD85X-9JH
Data Sheet M14669EJ7V0DS
10
PD442000A-X
Read Cycle (1/3)
Parameter
Symbol
VCC
≥ 2.7 V
Unit
Condition
-BB55X
-BB70X
-BB85X
MIN.
MAX.
MIN.
MAX.
MIN.
MAX.
Read cycle time
tRC
55
70
85
ns
Address access time
tAA
55
70
85
ns
Note 1
/CE1 access time
tCO1
55
70
85
ns
CE2 access time
tCO2
55
70
85
ns
/OE to output valid
tOE
30
35
40
ns
Output hold from address change
tOH
10
ns
/CE1 to output in Low-Z
tLZ1
10
ns
Note 2
CE2 to output in Low-Z
tLZ2
10
ns
/OE to output in Low-Z
tOLZ
555
ns
/CE1 to output in High-Z
tHZ1
20
25
30
ns
CE2 to output in High-Z
tHZ2
20
25
30
ns
/OE to output in High-Z
tOHZ
20
25
30
ns
Notes 1. The output load is 1TTL + 50 pF.
2. The output load is 1TTL + 5 pF.
Read Cycle (2/3)
Parameter
Symbol
VCC
≥ 2.2 V
Unit
Condition
-BC70X
-BC85X
-BC10X
MIN.
MAX.
MIN.
MAX.
MIN.
MAX.
Read cycle time
tRC
70
85
100
ns
Address access time
tAA
70
85
100
ns
Note 1
/CE1 access time
tCO1
70
85
100
ns
CE2 access time
tCO2
70
85
100
ns
/OE to output valid
tOE
35
40
50
ns
Output hold from address change
tOH
10
ns
/CE1 to output in Low-Z
tLZ1
10
ns
Note 2
CE2 to output in Low-Z
tLZ2
10
ns
/OE to output in Low-Z
tOLZ
555
ns
/CE1 to output in High-Z
tHZ1
25
30
35
ns
CE2 to output in High-Z
tHZ2
25
30
35
ns
/OE to output in High-Z
tOHZ
25
30
35
ns
Notes 1. The output load is 1TTL + 30 pF.
2. The output load is 1TTL + 5 pF.
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