参数资料
型号: RTC-4701JEB
厂商: EPSON TOYOCOM CORP
元件分类: 时钟/数据恢复及定时提取
英文描述: REAL TIME CLOCK, PDSO20
封装: VSOJ-20
文件页数: 21/22页
文件大小: 203K
代理商: RTC-4701JEB
RTC - 4701 JE / NB
Page - 5
MQ312-08
7.3. AC electrical characteristics
If not specifically indicated, GND=0 V, Ta= 40 °C to +85 °C
VDD=3 V
± 10 % VDD=5 V ± 10 %
Parameter
Symbol
Condition
Min.
Typ. Max. Min.
Typ. Max.
Unit
CLK clock cycle
tCLK
600
350
ns
CLK H pulse width
tWH
300
175
ns
CLK L pulse width
tWL
300
175
ns
CE setup time
tCS
300
175
ns
CE hold time
tCH
300
175
ns
CE recovery time
tCR
400
300
ns
Write data setup time
tDS
75
50
ns
Write data hold time
tDH
75
50
ns
Write data disable time
tWZ
0
ns
Output mode switching time
tDO
0
ns
Read data delay time
tRD
CL=50 pF
300
120
ns
Output disable time
tRZ
CL=50 pF
RL=10 k
200
100
ns
Input rise/fall time
tRF
100
50
ns
FOUT duty
tW / t
50% VDD level
40
60
40
60
%
Timing chart
CLK
C E
t CS
t WH t WL
t CH
t CR
50
%
DATA
t RD
t RZ
Data Read
DATA
t DS
Data Write
t DH
D 0
D 1
D 7
D 0
D 1
D 7
90
%
D 6
10
%
t RF
D 0
D 6
D 7
D 6
D 0
D 6
D 7
90
%
10
%
t WZ
t DO
(Setup code, setup address)
(Write data)
(Read data)
Starting from here the DATA pin goes into the
output mode.
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