MIC74_14 Datasheet, PDF (3/20 Pages) Micrel Semiconductor – 2-Wire Serial I/O Expander and Fan Controller

Micrel, Inc.
MIC74
Absolute Maximum Ratings⁽¹⁾
Supply Voltage (V_DD) ...................................................+4.6V
Input Voltage [all pins except VDD
and GND] (V_IN). .................................. GND – 0.3V to +5.5V
Junction Temperature (T_J) ......................................... 150°C
Lead Temperature (soldering, 10s)............................ 260°C
ESD Rating⁽³⁾
VDD ...................................................................... 1.5kV
A0, A1, A2..............................................................500V
Others ....................................................................200V
Operating Ratings⁽²⁾
Supply Voltage (V_DD).................................... +2.7V to +3.6V
Ambient Temperature (T_A) .......................... –40°C to +85°C
Package Thermal Resistance (θ_JA) ........................163°C/W
Electrical Characteristics⁽⁴⁾
2.7V ≤ VDD ≤ 3.6V; TA = 25°C, bold values indicate –40°C < TA < +85°C, unless noted.
Symbol Parameter
Condition
Min.
Typ.
Max. Units
VIN
Input Voltage (any pin except
VDD and GND)
GND–0.3
5.5
V
IDD
ISTART
Operating Supply Current
Fan Startup Supply Current
(Fan Mode Only)
P[7:0] inputs; P[7:0] = VDD or GND
/ALERT open; fCLK = 100kHz
during tSTART; /ALERT, /SHDN,
/FS2[2:0] = open;
VCLK = VDATA = VDD;
P[3:0] = inputs
2
6
µA
1.75
mA
ISTBY
Standby Supply Current
/ALERT = open,
VCLK = VDATA = VDD;
P[3:0] = inputs
1
3
µA
Serial I/O (DATA, CLK)
VIL
Input Low Voltage
–0.3
0.8
V
VIH
Input High Voltage
2
5.5
V
VOL
Output Low Voltage
IOL = 3mA
0.4
V
ILEAK
Leakage Current
VIN = 5.5V or GND
–1
+1
µA
CIN
Input Capacitance
10
pF
Notes:
1. Exceeding the absolute maximum ratings may damage the device.
2. The device is not guaranteed to function outside its operating ratings.
3. Devices are ESD sensitive. Handling precautions are recommended. Human body model, 1.5kΩ in series with 100pF.
4. Specification for packaged product only.
5. Devices participating in a transfer will timeout when any clock low exceeds the value of tTIMEOUT(min) of 25ms. Devices that have detected a timeout
condition must reset the communication no later than tTIMEOUT(max) of 35ms. The maximum value specified must be adhered to by both a master and a
slave as it incorporates the cumulative stretch limit for both a master (10ms) and a slave (25ms).
6. tHIGH(max) provides a simple guaranteed method for devices to detect bus idle conditions.
7. Rise and fall time is defined as follows: tR = VIL(max) – 0.15V to VIH(min) + 0.15V; tF = 0.9VDD to VIL(max) – 0.15V.
8. Guaranteed by design.
September 30, 2014
3
Revision 3.0