HCS515_11 Datasheet, PDF (25/38 Pages) Microchip Technology – KEELOQ® Code Hopping Decoder stand-alone decoder

HCS515
9.1 AC Electrical Characteristics
9.1.1 VALID TRANSMISSION NOTIFICATION
Standard Operating Conditions (unless otherwise specified)
Commercial (C): 0°C ≤TA ≤+70°C
Industrial (I):
-40°C ≤TA ≤+85°C
Symbol
Parameters
Min.
Typ.
Max.
Units
TDHI Command request time
0.0050
—
500
ms
TCLA Micro request acknowledge time
0.0050
—
1
ms
TACK Decoder Acknowledge time
—
—
4
μs
TACT
Start Command mode to
first command bit
20
—
1200
μs
TCLKH Clock high time
20
—
1000
μs
TCLKL Clock low time
20
—
1000
μs
FCLK Clock frequency
500
—
25000
Hz
TDS Data hold time
14
—
1000
μs
Note: These parameters are characterized but not tested.
9.1.2 COMMAND MODE ACTIVATION
Standard Operating Conditions (unless otherwise specified):
Commercial (C): 0°C ≤TA ≤+70°C
Industrial (I):
-40°C ≤TA ≤+85°C
Symbol
Parameters
Min.
Typ.
Max.
Units
TREQ Command request time
0.0050
—
500
ms
TRESP
Microcontroller request
acknowledge time
—
—
1
ms
TACK Decoder acknowledge time
—
—
4
μs
TSTART
Start Command mode to first
command bit
20
—
1000
μs
TCLKH Clock high time
20
—
1000
μs
TCLKL Clock low time
20
—
1000
μs
FCLK Clock frequency
500
—
25000
Hz
TDS Data hold time
14
—
—
μs
TCMD Command validate time
—
—
10
μs
TADDR Address validate time
—
—
10
μs
TDATA Data validate time
—
—
10
μs
Note: These parameters are characterized but not tested.
9.1.3 READ FROM USER EEPROM COMMAND
Standard Operating Conditions (unless otherwise specified):
Commercial (C): 0°C ≤TA ≤+70°C
Industrial (I):
-40°C ≤TA ≤+85°C
Symbol
Parameters
Min.
Typ.
Max.
Units
TRD Decoder EEPROM read time
1000
—
2000
μs
Note: These parameters are characterized but not tested.
© 2011 Microchip Technology Inc.
DS40183E-page 25