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参数资料
| 型号： | MM58167B |
| 厂商： | National Semiconductor Corporation |
| 英文描述： | Microprocessor Real Time Clock |
| 中文描述： | 微处理器实时时钟 |
| 文件页数： | 7/10页 |
| 文件大小： | 173K |
| 代理商： | MM58167B |
Write Cycle Timing
0
§
C
s
T
A
s
70
§
C, 4.5V
s
V
DD
s
5.5V, V
SS
e
0V
Symbol
Parameter
Min
Max
Units
t
AW
Address Valid to Write Strobe
100
ns
t
CSW
Chip Select to Write Strobe
0
ns
t
DW
Data Valid before Write Strobe
100
ns
t
WRY
Write Strobe to Ready Strobe
150
ns
t
RY
Ready Strobe Width
800
ns
t
RYH
Write Hold Time after Ready Strobe
0
ns
t
WD
Data Hold Time after Write Strobe
110
ns
t
WA
Address Hold Time after Write Strobe
50
ns
Note 4:
If data changes while CS and WR are low, then they must remain coincident for 1050 ns after the data change to ensure a valid write. Data bus loading is
100 pF. Ready output loading is 50 pF and 3 k
X
pull-up.
Input and output AC timing levels:
Logical one
e
2.0V
Logical zero
e
0.8V
Read and Write Cycle Timing Diagrams
TL/F/11070–6
FIGURE 3. Read Cycle Timing
TL/F/11070–7
FIGURE 4. Write Cycle Timing
7
相关PDF资料 |
PDF描述 |
|---|---|
| MM58167BN | Microprocessor Real Time Clock |
| MM58167BV | Microprocessor Real Time Clock |
| MM58174 | Microprocessor-Compatible Real-Time Clock |
| MM58174A | Microprocessor-Compatible Real-Time Clock |
| MM58174AN | Microprocessor-Compatible Real-Time Clock |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MM58167BN | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Microprocessor Real Time Clock |
| MM58167BV | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Microprocessor Real Time Clock |
| MM58174 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Microprocessor-Compatible Real-Time Clock |
| MM58174A | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Microprocessor-Compatible Real-Time Clock |
| MM58174AN | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Microprocessor-Compatible Real-Time Clock |
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