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HCS473 数据表(PDF) 56 Page - Microchip Technology

部件名 HCS473
功能描述  Code Hopping Encoder and Transponder
PDF  68 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

HCS473 数据表(HTML) 56 Page - Microchip Technology

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HCS473
DS40035C-page 54
Preliminary
 2002 Microchip Technology Inc.
TABLE 7-5:
AC CHARACTERISTICS, Industrial Temperature Devices(4)
AC Characteristics
Tamb = -20°C to 85°C, 2.05V < V
DD
≤ 3.5V unless stated otherwise
F
OSC = 4 MHz ±10%
Symbol
Min
Typ(1)
Max
Description
General HCS473 Timing
T
DB
9 ms
9 ms
10 ms
10 ms
11 ms
12 ms
Debounce Time
3.5V < V
DD < 5.5V(4)
T
QUE
1.8s
1.8s
2s
2s
2.2s
2.4s
Que Window
3.5V < V
DD < 5.5V(4)
T
PU
9.81 ms
9.81 ms
10.9 ms
10.9 ms
12 ms
13.08 ms
Power-up Delay Time (includes button debounce)
3.5V < V
DD < 5.5V(4)
T
PLL
17.1 ms
17.1 ms
19 ms
19 ms
20.9 ms
22.8 ms
Encoder Mode PLL activation to first code word
3.5V < V
DD < 5.5V(4)
T
LEDON
90 ms
90 ms
100 ms
100 ms
110 ms
120 ms
LED ON Time
3.5V < V
DD < 5.5V(4)
T
LEDOFF
450 ms
450 ms
500 ms
500 ms
550 ms
600 ms
LED OFF Time
3.5V < V
DD < 5.5V(4)
Communication from Transponder Reader to HCS473
T
CMD
1.1 LF
TE+100
µs
1.2 LF
TE+100
µs
—
—
9.18 ms
9.18 ms
3.5V < V
DD < 5.5V(4)
T
TSCMD
1.1 LF
TE+100
µs
1.2 LF
TE+100
µs
—
—
9.18 ms
9.18 ms
Delay from Transponder Select ACK to next command
3.5V < V
DD < 5.5V(4)
T
FINH
100
µs1LFTE
—
Time to leave LF on after last data bit’s rising edge
Response from HCS473 to Transponder Reader
T
SF
1ms+.9LF
TE
1ms+.9LF
TE
3.5 ms+1 LF
TE
3.5 ms+1 LF
TE
10 ms+1.1 LF
TE
10 ms+1.2 LF
TE
Delay to wake-up ACK(4)
T
TSACK
.9 LF
TE+14
µs
.9 LF
TE+14
µs
1LF
TE+30
µs
1LF
TE+30
µs
1.1 LF
TE+49
µs
1.2 LF
TE+53
µs
Delay from TID pulse rising edge to TID Acknowledge
TID = 0
3.5V < V
DD < 5.5V(4)
.9 LF
TE-10
µs
.9 LF
TE-10
µs
1 LF
TE
1 LF
TE
1.1 LF
TE+12
µs
1.2 LF
TE+13.2
µs
TID > 0
3.5V < V
DD < 5.5V(4)
T
TPACK
141
µs
141
µs
179
µs
179
µs
234
µs
255
µs
Delay to Transport Code Acknowledge
3.5V < V
DD < 5.5V(4)
T
WRT
—
4 ms
10 ms
Delay to Write Acknowledge
T
AOACK
60
µs
60
µs
89
µs
89
µs
135
µs
147
µs
Delay to anticollision off Acknowledge
3.5V < V
DD < 5.5V(4)
T
IFF
5.07 ms
5.07 ms
5.64 ms
5.64 ms
6.2 ms
6.8 ms
Delay to IFF response - RF or LF response
3.5V < V
DD < 5.5V(4)
T
READ
184
µs
184
µs
227
µs
227
µs
286
µs
312
µs
Delay to read response - RF or LF response
3.5V < V
DD < 5.5V(4)
T
HOP
17.1 ms
17.1 ms
19 ms
19 ms
20.9 ms
22.8 ms
Delay to hopping code response - RF or LF response
3.5V < V
DD < 5.5V(4)
T
DAMP
1.08 LF
TE
1.08 LF
TE
1.2 LF
TE
1.2 LF
TE
1.32 LF
TE
1.44 LF
TE
Delay from detecting LC rising edge to first damp pulse
3.5V < V
DD < 5.5V(4)
T
DEMOD
14.76 ms
14.76 ms
16.4 ms
16.4 ms
18 ms
19.7 ms
Demodulator mode window looking for edge on LC pin
3.5V < V
DD < 5.5V(4)
Timing Element T
E
T
E
90
180
360
720
100
200
400
800
110
220
440
880
RFT
E or LFTE
RFBSL = LFBSL = 002
RFBSL = LFBSL = 012
RFBSL = LFBSL = 102
RFBSL = LFBSL = 112



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