DS87C530_1 Datasheet, PDF (30/44 Pages) Dallas Semiconductor – EPROM/ROM Micro with Real Time Clock

DC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
Supply Voltage
V_CC
Power-fail Warning
V_PFW
Minimum Operating Voltage
V_RST
Backup Battery Voltage
V_BAT
Supply Current Active Mode @ 33
I_CC
MHz
Supply Current Idle Mode @ 33 MHz
I_Idle
Supply Current Stop Mode, Band-gap
I_Stop
Disabled
Supply Current Stop Mode, Band-gap
Enabled
I_SPBG
Backup Supply Current, Data Retention
I_BAT
Mode
Input Low Level
V_IL
Input High Level
V_IH
Input High Level XTAL1 and RST
V_IH2
Output Low Voltage @ I_OL=1.6 mA
V_OL1
Output Low Voltage Ports 0, 2, ALE ,
and PSEN @ I_OL=3.2 mA
V_OL2
Output High Voltage Ports 1, 2, 3, ALE,
PSEN @ I_OH=-50 µA
V_OH1
Output High Voltage Ports 1, 2, 3 @
I_OH=-1.5 mA
V_OH2
Output High Voltage Port 0 in Bus
Mode I_OH=-8 mA
V_OH3
Input Low Current Ports 1, 2, 3 @
I_IL
0.45V
Transition Current from 1 to 0 Ports 1,
I_TL
2, 3 @ 2V
Input Leakage Port 0, EA , pins, I/O
I_L
Mode
Input Leakage Port 0, Bus Mode
I_L
RST Pull-down Resistance
R_RST
MIN
4.5
4.25
4.0
2.5
0
-0.3
2.0
3.5
2.4
2.4
2.4
-10
-300
50
DS87C530/DS83C530
TYP
5.0
4.38
4.13
3.0
30
MAX
5.5
4.5
4.25
V_CC-0.7
UNITS
V
V
V
V
mA
NOTES
1
1
1
2
15
mA
3
1
µA
4
50
µA
4
0.5
µA
11
+0.8
V
1
V_CC+0.3 V
1
V_CC+0.3 V
1
0.15 0.45
V
1
0.15 0.45
V
1
V
1, 6
V
1, 7
V
1, 5
-55
µA
12
-650
µA
8
+10
µA
10
+300
µA
9
200
kΩ
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