DS1689 Datasheet, PDF (24/32 Pages) Dallas Semiconductor – 3-Volt/5-Volt Serialized Real-Time Clock with NV RAM Control

DC ELECTRICAL CHARACTERISTICS
PARAMETER
Average V_CC Power Supply Current
CMOS Standby Current ( CS =V_CC-0.2V)
Input Leakage Current (any input)
CEI Input Leakage
PSEL Input Leakage
Output Leakage Current
Output Logic 1 Voltage (I_OUT = 0.4 mA)
Output Logic 0 Voltage (I_OUT = 0.8 mA)
Output Voltage
Output Current
Power-Fail Trip Point
Output Voltage
Output Current
Battery Leakage OSC ON
Battery Leakage OSC OFF
I/O Leakage
PWR Output @ 0.4V
CEI to CEO Impedance
SYMBOL
I_CC1
I_CC2
I_IL
I _CEI
I_PSEL
I_OL
V_OH
V_OL
V_CCO1
I_CCO1
V_PF
V_CCO2
I_CCO2
I_BAT1
I_BAT2
I_LO
I_OLPWR
Z_CE
DS1689/DS1693
Over the operating range (3V)
MIN
TYP MAX UNITS NOTES
5
10 mA
2, 3
0.5
2
mA
2, 3
-1
+1
mA
-160
+1
mA
15
+1
-160 mA
16
+160
-1
mA
8
2.4
V
0.4
V
V_CC
V
4
-0.3
50 mA
4
2.5 2.6 2.7
V
5
V_BAT
-0.3
V
6
100 mA
6
500 1000 nA
50 150 nA
17
-1
+1
mA
7
4
mA
1
120
W
12
RTC AC TIMING CHARACTERISTICS
PARAMETER
Cycle Time
Pulse Width, RD / WR Low
Pulse Width, RD / WR High
Input Rise and Fall Time
Chip Select Setup Time Before WR , or RD
Chip Select Hold Time
Read Data Hold Time
Write Data Hold Time
Muxed Address Valid Time to ALE Fall
Muxed Address Hold Time from ALE Fall
RD or WR High Setup to ALE Rise
Pulse Width ALE High
ALE Low Setup to RD or WR Fall
Output Data Delay Time from RD
Data Setup Time
IRQ Release from RD
CEI to CEO Delay
SYMBOL
t_CYC
PW_RWL
PW_RWH
t_R, t_F
t_CS
t_CH
t_DHR
t_DHW
t_ASL
t_AHL
t_ASD
PW_ASH
t_ASED
t_DDR
t_DSW
t_IRD
t_CED
Over the operating range (3V)
MIN TYP MAX UNITS NOTES
915
DC ns
375
ns
450
ns
30
ns
75
ns
0
ns
10
120 ns
0
ns
90
ns
30
ns
30
ns
180
ns
120
ns
20
370 ns
9
180
ns
2
ms
20
ns
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