參數(shù)資料
型號(hào): DS1387
英文描述: RAMified Real Time Clock 4K x 8
中文描述: 網(wǎng)狀實(shí)時(shí)時(shí)鐘4K的× 8
文件頁(yè)數(shù): 14/20頁(yè)
文件大小: 142K
代理商: DS1387
DS1385/DS1387
012496 14/20
4K X 8 AC TIMING CHARACTERISTICS
(0
°
C to 70
°
C; V
CC
= 5V + 10%)
MAX
UNITS
PARAMETER
SYMBOL
MIN
TYP
NOTES
Address Setup Time
t
AS
55
ns
Address Hold Time
t
AH
0
ns
Data Setup Time
t
DS
75
ns
Data Hold Time
t
DH
0
ns
Output Enable Access Time
t
OEA
200
ns
7
Write Pulse Width
t
WP
200
ns
OER Pulse Width
t
RP
200
ns
OER to Output in High Z
t
OEZ
50
ns
AS0, AS1 Pulse Width
t
ASP
75
ns
AS0, AS1 High to OER Low
t
ASO
20
ns
AS0, AS1 High to WER Low
t
ASW
20
ns
BUS TIMING FOR READ CYCLE TO 4K X 8 NV SRAM
LOW ADDRESS VALID
UPPER ADDRESS VALID
DVALID
t
ASP
t
ASP
t
ASO
t
RP
t
AS
t
AS
t
AH
t
AH
AS0
AS1
OER
AD0–AD7
t
OEA
t
OEZ
WER = V
IH
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