hcs512 Microchip Technology Inc., hcs512 Datasheet - Page 11

• Manufacturer Part Number: hcs512
• Description: Keeloq Code Hopping Decoder Keeloq Code Hopping Decoder
• Manufacturer: Microchip Technology Inc.

FIGURE 6-2:
TABLE 6-4:
Note:
Program mode setup time
2002 Microchip Technology Inc.
Acknowledge duration
(Clock)
(Data)
DAT
Acknowledge Time
MCLR
CLK
Clock High Time
Clock Low Time
Hold time 1
Hold time 2
Parameter
F
OSC
equals 4 MHz.
T
PS
PROGRAMMING WAVEFORMS
PROGRAMMING TIMING REQUIREMENTS
Enter Program Mode
T
PH1
Symbol
TACKH
TCKH
TPH2
TCKL
TACK
TPH1
TPS
T
PH2
Bit0
T
Bit1
CKL
0.050
80-bit Data Package
Min.
0.05
0.05
—
1
8
1
T
CKH
Bit78
Bit79
Max.
128
320
320
320
64
80
—
T
ACK
Acknowledge
pulse
Ack
T
ACKH
HCS512
DS40151D-page 11
Units
ms
ms
ms
ms
ms
ms
ms