HCS473_13 Datasheet, PDF (51/68 Pages) Microchip Technology – KEELOQ® 3-Axis Transcoder

HCS473
TABLE 7-1: DC CHARACTERISTICS: HCS473 (CONTINUED)
DC Characteristics
All pins except power supply pins
Standard Operating Conditions (unless otherwise stated)
Operating Temperature 0C  TA  +70C (Commercial)
-20C  TA  +85C (Industrial)
Param
No.
Sym
Characteristic
Min
Typ† Max Units
Conditions
RPD Internal Pull-down Resistance
D100
S0 - S3
40
75
100
K If enabled
Data EEPROM Memory
D120
ED Endurance
200K
1000K —
E/W 25C at 5V
D121
D122
VDRW VDD for Read/Write
TDEW Erase/Write Cycle Time⁽¹⁾
2.05
—
—
5.5
V
4
10
ms
* These parameters are characterized but not tested.
† "Typ" column data is at 5.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are
not tested.
Note 1: The supply current is mainly a function of the operating voltage and frequency. Other factors such as I/O pin load-
ing and switching rate, oscillator type, internal code execution pattern, and temperature also have an impact on the
current consumption.
2: Should operate down to VBOR but not tested below 2.0V.
3: The test conditions for all IDD measurements in active Operation mode are: all I/O pins tristated, pulled to VDD.
MCLR = VDD; WDT enabled/disabled as specified. The power-down/shutdown current in SLEEP mode does not
depend on the oscillator frequency. Power-down current is measured with the part in SLEEP mode, with all I/O pins
in hi-impedance state and tied to VDD or VSS. The  current is the additional current consumed when the WDT is
enabled. This current should be added to the base IDD or IPD measurement.
TABLE 7-2: TRANSPONDER CHARACTERISTICS
DC Characteristics
All pins except power supply pins
Standard Operating Conditions (unless otherwise stated)
Operating Temperature 0C  TA  +70C (Commercial)
-20C  TA  +85C (Industrial)
2.05V < VDD < 5.5V
Symbol
Symbol
Min
Typ⁽¹⁾
Max
Unit
Conditions
V_lcc
LC input clamp voltage
—
10
—
VDDTV LC induced output voltage
—
3.5
—
V
ILC < 1mA
V
10 V < VLCC, IDD = 2 mA
fC
Carrier frequency
—
125
—
kHz
VLCS
LC Input Sensitivity
—
15
30
mVRMS VDD = 5.5V
—
18
35
VDD = 3.0V
VLCC
LCCOM Output Voltage
—
600
—
mV ILCCOM = 0 mA
Note: These parameters are characterizied but not tested.
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Preliminary
DS40035D-page 51