ATA6661 データシートの表示（PDF） - Atmel Corporation
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ATA6661 Datasheet PDF : 16 Pages
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ATA6661
6. Electrical Characteristics (Continued)
5V < VS < 18V, Tamb = –40°C to +125°C
No. Parameters
Test Conditions
Pin Symbol Min. Typ. Max.
8.6
Wake detection LIN
Low level input voltage
ILIN = Typically –3 µA
6
VLINL
–27V
VS –
3V
8.7 LIN pull-up current
9 Internal Timers
VS < 27V
6
ILIN
–30 –10
9.1
Dominant time for wake-up via
LIN bus
VLIN = 0V
6
tBUS
30
90 150
9.2
Time of low pulse for wake-up
via pin WAKE
VWAKE = 0V
3
tWAKE
60
130 200
Time delay for mode change
9.3 from pre-normal mode to normal VEN = 5V
mode via pin EN
2
tnorm
2
10
15
Time delay for mode change
9.4 from normal mode into sleep
mode via pin EN
VEN = 0V
2
tsleep
2
10
12
9.5 TXD dominant time out timer
Power-up delay between
9.6 VS = 5V until INH switches to
high
VTXD = 0V
VVS = 5V
4
tdom
tVS
6
9
20
200
LIN Bus Driver (see Figure 6-1 on page 12)
10 Bus load conditions: Load1 small 1 nF 1 kΩ, Load2 big 10 nF 500Ω, RRXD = 5 kΩ, CRXD = 20 pF;
The following two rows specifies the timing parameters for proper operation at 20.0 Kbit/s.
10.1
10.2
10.3
10.4
11
11.1
Duty cycle 1
THRec(max) = 0.744 × VS
THDom(max) = 0.581 × VS
VS = 7.0V to 18V
6
tBit = 50 µs
D1 = tbus_rec(min)/(2 × tBit)
Duty cycle 1
THRec(min) = 0.422 × VS
THDom(min) = 0.284 × VS
VS = 7.0V to 18V
6
tBit = 50 µs
D2 = tbus_rec(max)/(2 × tBit)
Slope time falling and rising
edge at LIN
Load1/Load2
VS = 7.3V to 18V
6
Symmetry of rising and falling
edge
VS = 7.3V
tsym = tSlope_fall – tSlope_rise
Receiver Electrical AC Parameters of the LIN Physical Layer
LIN receiver, RXD load conditions (CRXD): 20 pF, Rpull-up = 5 kΩ
Propagation delay of receiver
(see Figure 6-1 on page 12)
trec_pd = max(trx_pdr, trx_pdf)
D1
0.396
D2
tSlope_fall
tSlope_rise
3.5
tsym
–4
trx_pd
0.581
22.5
+4
6
Symmetry of receiver
11.2 propagation delay rising edge
minus falling edge
trx_sym = trx_pdr – trx_pdf
trx_sym
–2
+2
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Unit
V
µA
µs
µs
µs
µs
ms
µs
µs
µs
µs
µs
Type*
A
A
A
A
A
A
A
A
A
A
A
A
A
A
11
4729M–AUTO–02/09
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