hcs500 Microchip Technology Inc., hcs500 Datasheet - Page 24

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

HCS500
8.1.7
8.1.8
DS40153C-page 24
*
*
Symbol
Symbol
T
T
T
T
T
T
T
T
T
T
T
T
T
F
T
T
RESP
ACK 2
These parameters are characterized but not tested.
CLKH
These parameters are characterized but not tested.
CLKL
CMD
ALW
ERA
ACK
ACK
WT 2
PP 1
PP 2
PP 3
PP 4
CLK
DS
ERASE ALL COMMAND
PROGRAMMING COMMAND
Learn command activation time
Decoder acknowledge time
Microcontroller acknowledge
response time
Decoder data line low
Command request time
Decoder acknowledge time
Start Command mode to first
command bit
Data line low before tri-stated
Clock high time
Clock low time
Clock frequency
Data hold time
Command validate time
Command acknowledge time
Acknowledge respond time
Data low after clock low
Parameters
Parameters
Standard Operating Conditions (unless otherwise specified):
Commercial (C):
Industrial (I):
Standard Operating Conditions (unless otherwise specified):
Commercial (C):
Industrial (I):
Min
Min
500
20
20
20
—
—
—
20
—
20
20
—
—
30
20
—
-40°C
-40°C
0°C
0°C
Typ
Typ
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
TA
TA
TA
TA
+70°C
+70°C
+85°C
+85°C
2002 Microchip Technology Inc.
25000
1000
1000
1000
1000
1000
1000
Max
Max
210
500
240
10
10
10
1
5
5
Units
Units
ms
ms
ms
ms
Hz
s
s
s
s
s
s
s
s
s
s
s