LC895125Q Datasheet, PDF (2/11 Pages) Sanyo Semicon Device – CD-ROM Driver with On-Chip SCSI Interface and Subcode Functions

LC895125Q, 895125W
Allowable Operating Ranges at Ta = –30 to +70°C, V_SS = 0 V
Parameter
Supply voltage
Input voltage range
Symbol
V_DD
V_IN
Conditions
min
typ
max
Unit
4.5
5.0
5.5
V
0
V_DD
V
DC Characteristics at V_SS = 0 V, V_DD = 4.5 to 5.5 V, Ta = –30 to +70°C
Parameter
Input high level voltage
Input low level voltage
Input high level voltage
Input low level voltage
Input high level voltage
Input low level voltage
Output high level voltage
Output low level voltage
Output low level voltage
Output low level voltage
Input leakage current
Pull-up resistance
Symbol
Applicable Pins* (See below)
min
V_IH1
All input pins other than (1), (3), and XTALCK
2.2
V_IL1
V_IH2
RESET, IO0 to IO15, D0 to D7, RD, CS, WR, WFCK,
2.5
V_IL2
SBSO, SCOR (1)
V_IH3
Input pins (3), ACK, and ATN
2.0
V_IL3
V_OH1
I_OH1 = –2 mA: All output pins except (2), (3),
and XTALCK, IO0 to IO15, and D0 to D7
2.4
V_OL1
I_OL1 = 2 mA: All output pins except (2), (3),
and XTALCK, IO0 to IO15, and D0 to D7
V_OL2
I_OL2 = 2 mA: INT1, INT0, and ZSWAIT
(open-drain outputs with pull-up resistors) (2)
V_OL3
I_OL3 = 48 mA: DB0, to DB7, DBP, BSY, I/O, MSG,
SEL, RST, REQ, C/D (3)
I_L
V_I = V_SS, V_DD: All input pins
–25
R_UP
IO0 to IO15, D0 to D7, INT0, INT1, ZSWAIT
40
typ
max
Unit
V
0.8
V
V
0.6
V
V
0.8
V
V
0.4
V
0.4
V
0.4
V
+25
µA
80
160
kΩ
SCSI Pin Input Characteristics
Parameter
Input threshold voltage
Hysteresis width
Symbol
V_{t + t1}
V_{t – t1}
∆V_tt1
Conditions
V_DD = 4.5 to 5.5 V
V_DD = 5.0 V
min
typ
max
Unit
1.60
2.00
V
0.80
1.11
V
0.41
0.49
V
Sample Recommended Oscillator Circuit
R1 = 120 kΩ
R2 = 47 Ω
C1 = 30 pF
Crystal oscillator frequencies: XTALCK0 = 16.9344 MHZ and XTALCK1 = 20 MHz
or:
R1 = 3.3 kΩ
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. 5241-2/11