參數(shù)資料
型號: UPD4991ACX
廠商: NEC Corp.
英文描述: 4-BIT PARALLEL I/O CALENDAR CLOCK
中文描述: 4位并行I / O日歷鐘
文件頁數(shù): 8/32頁
文件大?。?/td> 133K
代理商: UPD4991ACX
μ
PD4991A
8
READ CYCLE (Unless otherwise specified, V
DD
= 5 V
±
10 %, T
a
= –40 to +85
°
C)
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
CONDITIONS
Cycle Time
t
RC
150
Address Access Time
t
AA
150
CS-Access Time
t
ACS
150
OE-Output Delay Time
t
OE
75
OE-Output Delay Time
t
OLZ
5
ns
OE-Output Delay Time
t
OHZ
50
Output Hold Time
t
OH
15
CS-Output Set Time
t
CLZ
0
CS-Output Floating Time
t
CHZ
5
Read Cycle (V
DD
= 2.7 to 3.6 V, T
a
= –40 to +85
°
C)
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
CONDITIONS
Cycle Time
t
RC
210
Address Access Time
t
AA
210
CS-Access Time
t
ACS
210
OE-Output Delay Time
t
OE
110
OE-Output Delay Time
t
OLZ
10
ns
OE-Output Delay Time
t
OHZ
70
Output Hold Time
t
OH
20
CS-Output Setup Time
t
CLZ
15
CS-Output Floating Time
t
CHZ
10
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