参数资料
型号: M48T59Y-70MH1F
厂商: STMICROELECTRONICS
元件分类: 时钟/数据恢复及定时提取
英文描述: 0 TIMER(S), REAL TIME CLOCK, PDSO28
封装: 0.330 INCH, LEAD FREE, PLASTIC, SOH-28
文件页数: 32/32页
文件大小: 373K
代理商: M48T59Y-70MH1F
Obsolete
Product(s)
- Obsolete
Product(s)
Obsolete
Product(s)
- Obsolete
Product(s)
M48T59, M48T59Y, M48T59V
Operation modes
The state of the eight three-state Data I/O signals is controlled by E and G. If the outputs are
activated before tAVQV, the data lines will be driven to an indeterminate state until tAVQV. If
the Address Inputs are changed while E and G remain active, output data will remain valid
for Output Data Hold time (tAXQX) but will go indeterminate until the next Address Access.
Figure 5.
Read mode AC waveforms
Note:
WRITE enable (W) = High.
Table 3.
Read mode AC characteristics
Symbol
Parameter(1)
1.
Valid for ambient operating temperature: TA = 0 to 70°C; VCC = 4.5 to 5.5 V, 4.75 to 5.5 V, or 3.0 to 3.6 V (except where
noted).
M48T59/Y/V
Unit
–70
Min
Max
tAVAV
READ cycle time
70
ns
tAVQV
(2)
2.
CL = 100pF (see Figure 13 on page 22).
Address valid to output valid
70
ns
Chip enable low to output valid
70
ns
tGLQV
Output enable low to output valid
35
ns
tELQX
(3)
3.
CL = 5pF (see Figure 13 on page 22).
Chip enable low to output transition
5
ns
tGLQX
Output enable low to output transition
5
ns
tEHQZ
Chip enable high to output Hi-Z
25
ns
tGHQZ
Output enable high to output Hi-Z
25
ns
tAXQX
Address transition to output transition
10
ns
AI01385
tAVAV
tAVQV
tAXQX
tELQV
tELQX
tEHQZ
tGLQV
tGLQX
tGHQZ
VALID
A0-A12
E
G
DQ0-DQ7
VALID
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