DS1222 Datasheet, PDF (3/4 Pages) Dallas Semiconductor – BankSwitch Chip

ABSOLUTE MAXIMUM RATINGS*
Voltage on any Pin Relative to Ground
Operating Temperature
Storage Temperature
-0.3V to +7.0V
0°C to 70°C
-55°C to +125°C
DS1222
∗ This is a stress rating only and functional operation of the device at these or any other conditions
above those indicated in the operation sections of this specification is not implied. Exposure to
absolute maximum rating conditions for extended periods of time may affect reliability.
RECOMMENDED DC OPERATING CONDITIONS
PARAMETER
SYMBOL MIN
TYP
Power Supply Voltage
Logic 1
Logic 0
V_CC
4.5
5.0
V_IH
2.2
V_IL
-0.3
MAX
5.5
V CC +0.3
+0.8
(0°C to 70°C)
UNITS NOTES
V
1
V
1
V
1
DC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL MIN
Input Leakage Current
I_IL
-1.0
I/O Leakage Current
I_LO
-1.0
Output Current @ 2.4V
Output Current @ 0.4V
Operating Current
I_OH
-1.0
I_OL
I_CC
CAPACITANCE
PARAMETER
Input Capacitance
Input/Output Capacitance
SYMBOL
C_IN
C_I/O
MIN
AC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL MIN
Address Setup
t_AS
5
Address Hold
t_AH
50
Read Recovery
t_RR
40
Propagation Delay
t_PD
Power Fail Input to First CEI
t_PF
50
Chip Enable Low
t_CW
110
NOTES:
1. All voltages are referenced to ground.
2. Measured with a load as shown in Figure 1.
(0°C to 70°C; V_CC = 5V ±10%)
TYP MAX UNITS NOTES
+1.0
µA
+1.0
µA
mA
2
+4.0
mA
2
15
mA
(T_A = 25°C)
TYP MAX UNITS NOTES
5
10
pF
5
10
pF
(0°C to 70°C; V_CC = 5V ±10%)
TYP MAX UNITS NOTES
ns
ns
ns
15
ns
2
ns
ns
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