HCS473T/SL Microchip Technology, HCS473T/SL Datasheet - Page 56

• Manufacturer Part Number: HCS473T/SL
• Description: IC KEELOQ 3AXIS TRANSCODR 14SOIC
• Manufacturer: Microchip Technology
• Series: KEELOQ®r
• Type: Code Hopping Encoder and Transponderr

Specifications of HCS473T/SL

• Applications: Access Control Systems
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

HCS473
TABLE 7-5:
DS40035C-page 54
AC Characteristics
General HCS473 Timing
T
T
T
T
T
T
Communication from Transponder Reader to HCS473
T
T
T
Response from HCS473 to Transponder Reader
T
T
T
T
T
T
T
T
T
T
Timing Element T
T
Symbol
CMD
SF
AOACK
E
DB
QUE
PU
PLL
LEDON
LEDOFF
TSCMD
FINH
TSACK
TPACK
WRT
IFF
READ
HOP
DAMP
DEMOD
1.1 LF
1.2 LF
1.1 LF
1.2 LF
.9 LF
.9 LF
1 ms+.9 LF
1 ms+.9 LF
.9 LF
.9 LF
1.08 LF
1.08 LF
14.76 ms
14.76 ms
9.81 ms
9.81 ms
17.1 ms
17.1 ms
5.07 ms
5.07 ms
17.1 ms
17.1 ms
450 ms
450 ms
100 µs
141 µs
141 µs
184 µs
184 µs
90 ms
90 ms
60 µs
60 µs
9 ms
9 ms
1.8s
1.8s
Min
TE
TE
TE
TE
TE
TE
180
360
720
TE
TE
AC CHARACTERISTICS, Industrial Temperature Devices (4)
90
—
E
+100 µs
+100 µs
+100 µs
+100 µs
+14 µs
+14 µs
-10 µs
-10 µs
TE
TE
TE
TE
3.5 ms+1 LF
3.5 ms+1 LF
1 LF
1 LF
1.2 LF
1.2 LF
10.9 ms
10.9 ms
5.64 ms
5.64 ms
16.4 ms
16.4 ms
100 ms
100 ms
500 ms
500 ms
1 LF
1 LF
179 µs
179 µs
227 µs
227 µs
10 ms
10 ms
19 ms
19 ms
1LF
19 ms
19 ms
Typ
89 µs
89 µs
4 ms
TE
TE
100
200
400
800
2s
2s
—
—
—
—
+30 µs
+30 µs
(1)
TE
TE
TE
TE
TE
TE
TE
Tamb = -20°C to 85°C, 2.05V < V
F
1.2 LF
10 ms+1.1 LF
10 ms+1.2 LF
1.1 LF
1.2 LF
1.1 LF
OSC
Preliminary
1.32 LF
1.44 LF
13.08 ms
20.9 ms
22.8 ms
9.18 ms
9.18 ms
9.18 ms
9.18 ms
20.9 ms
22.8 ms
19.7 ms
120 ms
550 ms
600 ms
110 ms
234 µs
255 µs
135 µs
147 µs
6.2 ms
6.8 ms
286 µs
312 µs
= 4 MHz ±10%
12 ms
12 ms
10 ms
18 ms
11 ms
TE
Max
2.2s
2.4s
220
440
880
110
TE
TE
TE
—
+13.2 µs
+49 µs
+53 µs
+12 µs
TE
TE
TE
TE
Debounce Time
3.5V < V
Que Window
3.5V < V
Power-up Delay Time (includes button debounce)
3.5V < V
Encoder Mode PLL activation to first code word
3.5V < V
LED ON Time
3.5V < V
LED OFF Time
3.5V < V
3.5V < V
Delay from Transponder Select ACK to next command
3.5V < V
Time to leave LF on after last data bit’s rising edge
Delay to wake-up ACK
Delay from TID pulse rising edge to TID Acknowledge
TID = 0
3.5V < V
TID > 0
3.5V < V
Delay to Transport Code Acknowledge
3.5V < V
Delay to Write Acknowledge
Delay to anticollision off Acknowledge
3.5V < V
Delay to IFF response - RF or LF response
3.5V < V
Delay to read response - RF or LF response
3.5V < V
Delay to hopping code response - RF or LF response
3.5V < V
Delay from detecting LC rising edge to first damp pulse
3.5V < V
Demodulator mode window looking for edge on LC pin
3.5V < V
RFT
RFBSL = LFBSL = 00
RFBSL = LFBSL = 01
RFBSL = LFBSL = 10
RFBSL = LFBSL = 11
E
or LFT
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
< 5.5V
< 5.5V
< 5.5V
< 5.5V
< 5.5V
< 5.5V
< 5.5V
< 5.5V
< 5.5V
< 5.5V
< 5.5V
< 5.5V
< 5.5V
< 5.5V
< 5.5V
< 5.5V
< 5.5V
E
DD
≤ 3.5V unless stated otherwise
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 2002 Microchip Technology Inc.
Description
2
2
2
2
(4)