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參數資料
| 型號： | LC895124 |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP144 |
| 封裝： | SQFP-144 |
| 文件頁數： | 2/8頁 |
| 文件大小： | 83K |
| 代理商： | LC895124 |
Allowable Operating Ranges at Ta = –30 to +70°C, VSS = 0 V
DC Characteristics at VSS = 0 V, VDD = 4.5 to 5.5 V, Ta = –30 to +70°C
Note: The subcode-related pins in group (1) are not provided by the LC895124.
SCSI Pin Input Characteristics
Sample Recommended Oscillator Circuit
R1 = 120 k
R2 = 47
C1 = 30 pF
Crystal oscillator frequencies: XTALCK0 = 16.9344 MHz and XTALCK1 = 20 MHz
or:
R1 = 3.3 k
R2 = None
C1 = 5 pF
Crystal oscillator frequency: XTALCK0 = 33.8688 MHz
If third harmonic overtones appear when using a 33.8688 MHz frequency with the
recommended circuit example, consult with the manufacturer of the crystal
element, since detailed values of the circuit constants will be influenced by the
printed circuit board.
No. 5240-2/8
LC895124
Parameter
Symbol
Applicable Pins
min
typ
max
Unit
Input high level voltage
VIH1
All input pins other than (1), (3), and XTALCK
2.2
V
Input low level voltage
VIL1
0.8
V
Input high level voltage
VIH2
RESET, IO0 to IO15, D0 to D7, RD, CS, WR, WFCK,
2.5
V
Input low level voltage
VIL2
SBSO, SCOR (1)
0.6
V
Input high level voltage
VIH3
Input pins (3), ACK, and ATN
2.0
V
Input low level voltage
VIL3
0.8
V
Output high level voltage
VOH1
IOH1 = –2 mA: All output pins except (2), (3),
2.4
V
and XTALCK, IO0 to IO15, and D0 to D7
Output low level voltage
VOL1
IOL1 = 2 mA: All output pins except (2), (3),
0.4
V
and XTALCK, IO0 to IO15, and D0 to D7
Output low level voltage
VOL2
IOL2 = 2 mA: INT1, INT0, and ZSWAIT
0.4
V
(open-drain outputs with pull-up resistors) (2)
Output low level voltage
VOL3
IOL3 = 48 mA: DB0, to DB7, DBP, BSY, I/O, MSG,
0.4
V
SEL, RST, REQ, C/D (3)
Input leakage current
IL
VI = VSS, VDD: All input pins
–25
+25
A
Pull-up resistance
RUP
IO0 to IO15, D0 to D7, INT0, INT1, ZSWAIT
40
80
160
k
Parameter
Symbol
Conditions
min
typ
max
Unit
Supply voltage
VDD
4.5
5.0
5.5
V
Input voltage range
VIN
0
VDD
V
Parameter
Symbol
Conditions
min
typ
max
Unit
Input threshold voltage
Vt + t1
VDD = 4.5 to 5.5 V
1.60
2.00
V
Vt – t1
0.80
1.11
V
Hysteresis width
V
tt1
VDD = 5.0 V
0.41
0.49
V
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