DS4550 Datasheet, PDF (2/18 Pages) Dallas Semiconductor – I2C and JTAG Nonvolatile 9-Bit I/O Expander Plus Memory

I²C and JTAG Nonvolatile 9-Bit I/O
Expander Plus Memory
ABSOLUTE MAXIMUM RATINGS
Voltage on V_CC, SDA, and SCL Pins
Relative to Ground.............................................-0.5V to +6.0V
Voltage on A0, A1, A2, TCK, TMS, TDI, and I/O_n [n = 0 to 8]
Relative to Ground ...................................-0.5V to V_CC + 0.5V,
not to exceed +6.0V.
Operating Temperature Range ...........................-40°C to +85°C
EEPROM Programming Temperature Range .........0°C to +70°C
Storage Temperature Range .............................-55°C to +125°C
Soldering Temperature .....................See IPC/JEDEC J-STD-020
Specification
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
(T_A = -40°C to +85°C)
PARAMETER
Supply Voltage
SYMBOL
V_CC
(Note 1)
CONDITIONS
Input Logic 1
V_IH
Input Logic 0
V_IL
MIN
+2.7
0.7 x
V_CC
-0.3
TYP MAX UNITS
+5.5
V
V_CC +
V
0.3
0.3 x
V_CC
V
DC ELECTRICAL CHARACTERISTICS
(V_CC = +2.7V to +5.5V, T_A = -40°C to +85°C, unless otherwise noted.)
PARAMETER
Standby Current
Input Leakage
Input Current each I/O pin
Low-Level Output Voltage (SDA)
I/O Pins Low-Level Output
Voltage
Low-Level Output Voltage (TDO)
High-Level Output Voltage (TDO)
I/O Pin Pullup Resistors
TMS, TDI Pullup Resistors
I/O Capacitance
Power-On Reset Voltage
SYMBOL
I_STBY
I_L
I_I/O
V_{OL SDA}
(Note 2)
CONDITIONS
0.4 < V_I/O < 0.9 x V_CC
3mA sink current
6mA sink current
V_{OL I/O} 16mA sink current
V_{OL TDO}
V_{OH TDO}
R_PU
R_JPU
C_I/O
V_POR
4mA sink current
1mA source current
(Note 3)
MIN TYP MAX UNITS
2
10
µA
-1.0
+1.0
µA
-1.0
+1.0
µA
0.4
V
0.6
0.4
V
0.4
V
2.4
V
4.0
5.5
7.5
kΩ
7.5
10
12.5
kΩ
10
pF
1.6
V
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