RTC-58321 データシートの表示（PDF） - Seiko Epson Corp
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RTC-58321 Datasheet PDF : 12 Pages
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RTC-58321/58323
4. DC characteristics
Item
Symbol
Conditions
RTC-58321 (VDD = 5V ± 0.5V, Ta = -10 to 70°C)
RTC-58323 (VDD = 5V ± 0.5V, Ta = -30 to 85°C)
Min.
Typ.
Max.
Unit
High input voltage
VIH1 *1
3.6
V
VIH2 *2
VDD - 0.5
V
Low input voltage
VIL
0.8
V
Low output voltage
VOL
IOL = 1.6mA
0.4
V
Low output current
IOL
VOL = 0.4V
1.6
mA
High input current
IIH *3
VIH = 5V
10
30
80
µA
Low input current
IIL *3
VIL = 0V
-1
µA
Input leakage current
ILIH
VIH = 5V
1
µA
Input off-state leakage current
ILIL
VIL = 0V
-1
Input capacity
CI
f = 1MHz
5
pF
Current consumption
IOP
VDD = 5V
*4
100
500
µA
*5
20
40
VDD = 3V
*4
15
30
*5
7
20
Oscillation start time *6
tOSC
VDD = 5V
Ta = 25°C
1.5
3.0
sec.
*1 Pins CS2, WRITE, READ, ADDRESS WRITE, STOP, TEST and D0 to D3
*2 CS1
*3 Pins CS1, CS2, WRITE, READ, ADDRESS WRITE, STOP and TEST
*4 CS1 and CS2 high, BUSY Open-circuit
*5 CS1, CS2 and BUSY Open-circuit
*6 Confirmed by BUSY
5. AC characteristics
Item
Chip select set-up time
Address set-up time
Address write pulse width
Address hold time
Data set-up time
Write pulse width
Data hold time
Read inhibit time
Read access time
Read delay time
Chip select hold time
Q
tRA = 1µS + C×R×ln
VDD
VDD − VH min
Symbol
tCS
tAS
tAW
tAH
tDS
tWW
tDH
tRI
tRA
tDD
tCH
Conditions
−
−
−
−
−
−
−
−
−
−
−
C
R
VHmin
ln
: capacitance of data line
: pull-up resistance
: high voltage level of IC connected to data line
: natural logarithm
Min.
0
0
0.5
0.1
0
2
0
0
−
−
0
RTC-58321 (VDD = 5V ± 0.5V, Ta = -10 to 70°C)
RTC-58323 (VDD = 5V ± 0.5V, Ta = -30 to 85°C)
Typ.
Max.
Unit
−
−
µS
−
−
µS
−
−
µS
−
−
µS
−
−
µS
−
−
µS
−
−
µS
−
−
µS
−
Q
µS
−
1
µS
−
−
µS
Page - 4
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