hcs500 Microchip Technology Inc., hcs500 Datasheet - Page 22

• Manufacturer Part Number: hcs500
• Description: Keeloq Code Hopping Decoder
• Manufacturer: Microchip Technology Inc.

HCS500
8.1
8.1.1
8.1.2
8.1.3
DS40153C-page 22
*
*
*
Symbol
Symbol
Symbol
T
T
T
T
T
T
T
T
T
T
T
START
F
T
These parameters are characterized but not tested.
These parameters are characterized but not tested.
These parameters are characterized but not tested.
T
T
ADDR
T
ACK
RESP
CLKH
RESP
CLKL
DATA
CMD
REQ
ACK
ACK
CLK
WR
DS
RD
2
AC Electrical Characteristics
COMMAND MODE ACTIVATION
READ FROM USER EEPROM COMMAND
WRITE TO USER EEPROM COMMAND
Write command activation time
EEPROM write acknowledge time
Microcontroller acknowledge
response time
Decoder response
acknowledge time
Command request time
Microcontroller request
acknowledge time
Decoder acknowledge time
Start Command mode to first
command bit
Clock high time
Clock low time
Clock frequency
Data hold time
Command validate time
Address validate time
Data validate time
Decoder EEPROM read time
Parameters
Parameters
Parameters
Standard Operating Conditions (unless otherwise specified):
Commercial (C):
Industrial (I):
Standard Operating Conditions (unless otherwise specified):
Commercial (C):
Industrial (I):
Standard Operating Conditions (unless otherwise specified):
Commercial (C):
Industrial (I):
0.0150
Min
20
20
—
—
Min
500
Min
400
20
20
20
14
—
—
—
—
—
0°C
-40°C
0°C
-40°C
0°C
-40°C ð TA
Typ
—
—
—
—
Typ
Typ
—
—
—
—
—
—
—
—
—
—
—
—
TA
TA
TA
TA
TA
+70°C
+70°C
+70°C
+85°C
+85°C
+85°C
2002 Microchip Technology Inc.
1000
1000
Max
25000
1500
10
10
1000
1000
1000
Max
Max
500
30
10
10
10
—
1
Units
Units
Units
ms
ms
ms
Hz
s
s
s
s
s
s
s
s
s
s
s
s