
No. 5786-2/7
LC895126
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Input high-level voltage
VIH1
TTL level pins: (1)
2.2
V
Input low-level voltage
VIL1
0.8
V
Input high-level voltage
VIH2
TTL level pins: (9)
2.2
V
Input low-level voltage
VIL2
Pins with built-in pull-up resistors.
0.8
V
Input high-level voltage
VIH3
TTL level pins: (2)
2.2
V
Input low-level voltage
VIL3
Schmitt input pins
0.8
V
Input high-level voltage
VIH4
CMOS level pins: (3)
0.8 VDD
V
Input low-level voltage
VIL4
Schmitt input pins
0.2 VDD
V
Input high-level voltage
VIH5
(4), (8), (10)
2.0
V
Input low-level voltage
VIL5
0.8
V
Output high-level voltage
VOH1IOH1 = –12 mA : (6)
VDD – 2.1
V
Output low-level voltage
VOL1IOL1 = 12 mA : (6)
0.4
V
Output high-level voltage
VOH2IOH2 = –8 mA : (7)
2.4
V
Output low-level voltage
VOL2IOL2 = 8 mA : (7)
0.4
V
Output high-level voltage
VOH2IOH2 = –2 mA : (9), (5)
2.4
V
Output low-level voltage
VOL2IOL2 = 2 mA : (9), (5)
0.4
V
Output low-level voltage
VOL4IOL4 = 48 mA : (10)
0.4
V
Input leakage current
IIL
VI = VSS or VDD: All input pins.
–25
+25
μA
Pull-up resistance
RUP
(5), (9)
60
120
240
kΩ
Electrical Characteristics at Ta = –30 to +70°C, VSS = 0 V, VDD = 4.5 to 5.5 V
The pin sets referred to above are as follows:
INPUT
(1)
TEST0 to TEST4, CSCTRL, SUA0 to SUA6, X1EN, WFCK, SBS0
(2)
C2PO, SDATA, BCK, LRCK, SCOR, ZRESET
(3)
ZCS, ZRD, ZWR
(4)
SCSISEL, XTALSEL
OUTPUT
(5)
ZINT0, ZINT1, ZSWAIT
(6)
MCK, MCK2, MCK3
(7)
EXCK, DSDATA, DLRCK, DBCK, ZRAS0, ZRAS1, ZCAS0, ZCAS1, ZOE, ZUWE, ZLWE, RA0 to RA8
INOUT
(8)
ACK, ATN
(9)
D0 to D7, IO0 to IO15, IOP0 to IOP4
(10)
DB0 to DB7, DBP, BSY, I/O, MSG, SEL, RST, REQ, C/D
Note: The XTAL0, XTALCK0, XTAL1, and XTALCK1 pins are not covered by the electrical characteristics.
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Input threshold voltage
Vt + t1
VDD = 4.50 to 5.50 V
1.60
2.00
V
Vt – t1
0.80
1.10
V
Hysteresis
ΔVtt1
VDD = 5.0 V
0.41
0.5
V
SCSI Interface Pin Input Characteristics
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Output high-level voltage
VOH
IOH = –24 mA
2.5
V
Output low-level voltage
VOL
IOL = 48 mA
0.4
V
Active Negation Output Characteristics
Note: Active negation refers to the DB0 to DB7, REQ, and DBPB outputs.
Figure 1