HCS512_02 Datasheet, PDF (16/26 Pages) Microchip Technology – KEELOQ® Code Hopping Decoder

HCS512
TABLE 9-1: DC CHARACTERISTICS
Symbol
Characteristic
Standard Operating Conditions (unless otherwise stated)
Operating temperature
Commercial (C): 0°C ≤ TA ≤ +70°C for commercial
Industrial (I):
-40°C ≤ TA ≤ +85°C for industrial
Min
Typ^(†)
Max
Units
Conditions
VDD
Supply Voltage
4.0
—
6.0
V
VPOR
VDD start voltage to
—
VSS
—
V
ensure RESET
SVDD
VDD rise rate to
0.05*
—
ensure RESET
—
V/ms
IDD
Supply Current
—
1.8
4.5
mA
FOSC = 4 MHz, VDD = 5.5V
—
7.3
10
mA (During EEPROM programming)
15
32
µA
In SLEEP mode
VIL
Input Low Voltage
VSS
—
0.16 VDD
V
except MCLR = 0.2 VDD
VIH
Input High Voltage 0.48 VDD
—
VDD
V
except MCLR = 0.85 VDD
VOL
Output Low Voltage
—
—
0.6
V
IOL = 8.5 mA, VDD = 4.5V
VOH
Output High Voltage VDD-0.7
—
—
V
IOH = -3.0 mA, VDD = 4.5V
† Data in “Typ” column is at 5.0V, 25°C unless otherwise stated. These parameters are for design guidance only
and are not tested.
* These parameters are characterized but not tested.
Note: Negative current is defined as coming out of the pin.
TABLE 9-2: AC CHARACTERISTICS
Symbol
FOSC
Characteristic
Oscillator frequency
TE
PWM elemental
pulse width
Min Typ
2.7
4
65
—
130
—
TOD
Output delay
70
90
TA
Output activation time
322
500
TRPT REPEAT activation time 32
50
TLRN
LRNIN activation time
21
32
TMCLR
MCLR low time
150
—
TOV
Time output valid
—
150
* These parameters are characterized but not tested.
Max
6.21
1080
1080
115
740
74
—
—
222
Units
MHz
µs
µs
ms
ms
ms
ms
ns
ms
Conditions
REXT = 10K, CEXT = 10 pF
4.5V < VDD < 5.5V
Oscillator components tolerance < 6%.
3V < VDD < 6V
Oscillator components tolerance <10%
FIGURE 9-1: RESET WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP
TIMER TIMING
VDD
MCLR
I/O Pins
TMCLR
TOV
DS40151D-page 16
© 2002 Microchip Technology Inc.