MT89L86 Data Sheet
25
Zarlink Semiconductor Inc.
Figure 14 - Interfacing the 3.3 V MT89L86 to the 8051 Microcontroller
RES
RST
8051
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
ALE
RD
WR
D
CK
Q
PR
D
CK
Q
PR
D
CK
Q
PR
8
8
CS
MTA
MT89L86
Address
Decode
LATCH LATCH
LE OE
OE LE
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
ALE
RD
WR
CS
DTA
RD
MTA
DTA
MTA
AD0-AD7
MT89L86
DTA
RES
R
C
LRD
LWR
MT89L86
Access
MT89L86 Data Sheet
26
Zarlink Semiconductor Inc.
* Exceeding these values may cause permanent damage. Functional operation under these conditions is not implied.
Typical figures are at 25
C and are for design aid only: not guaranteed and not subject to production testing.
Typical figures are at 25
C and are for design aid only: not guaranteed and not subject to production testing.
Absolute Maximum Ratings*
Parameter Symbol Min. Max. Units
1 Supply Voltage -0.3 5.0 V
2 Voltage on any I/O pin (except supply pins) V
O
V
SS
-0.3 V
DD
+0.3 V
3 Current at Digital Outputs I
O
20 mA
4 Storage Temperature T
S
-55 +125 C
5 Package Power Dissipation P
D
1W
Recommended Operating Conditions
- Voltages are with respect to ground (V
SS
) unless otherwise stated.
Characteristics Sym. Min. Typ.
Max. Units Test Conditions
1 Operating Temperature T
OP
-40 25 +85 C
2 Positive Supply V
DD
3.0 3.3 3.6 V
3 Input High Voltage V
IH
0.7V
DD
V
DD
V
4 Input High Voltage on 5 V
Tolerant Inputs
V
IH
5.5 V
5 Input Low Voltage V
IL
V
SS
0.3V
DD
V
DC Electrical Characteristics
- Voltages are with respect to ground (V
SS
) unless otherwise stated.
Characteristics Sym. Min. Typ.
Max. Units Test Conditions
1
I
N
P
U
T
S
Supply Current I
DD
6 10 mA Outputs unloaded
2 Input High Voltage V
IH
0.7V
DD
V
3 Input Low Voltage V
IL
0.3V
DD
V
4 Input Leakage I
IL
5 AV
I
between V
SS
and V
DD
5 Input Pin Capacitance C
I
10 pF
6
O
U
T
P
U
T
S
Output High Voltage V
OH
0.8V
DD
VI
OH
= 10 mA
7 Output High Current I
OH
10 mA Sourcing. V
OH
=2.4 V
8 Output Low Voltage V
OL
0.4 V I
OL
= 5 mA
9 Output Low Current I
OL
5mASinking. V
OL
= 0.4 V
10 High Impedance Leakage I
OZ
5 AV
O
between V
SS
and V
DD
11 Output Pin Capacitance C
O
10 pF
AC Electrical Characteristics
_
Timing Parameter Measurement Voltage Levels
Characteristics Sym. Level Units Test Conditions
1 CMOS Threshold Voltage V
TT
0.5V
DD
V
2 CMOS Rise/Fall Threshold Voltage high V
HM
0.7V
DD
V
3 CMOS Rise/Fall Threshold Voltage low V
LM
0.3V
DD
V
MT89L86 Data Sheet
27
Zarlink Semiconductor Inc.
Timing is over recommended temperature & power supply voltages (V
DD
=3 V5%, V
SS
=0 V, T
A
=–40 to 85C).
Typical figures are at 25
C and are for design aid only: not guaranteed and not subject to production testing.
Figure 15 - ST-BUS Timing (CLKM bit=0)
AC Electrical Characteristics
† _
ST-BUS Timing (2.048 Mb/s)
Voltages are with respect to ground (VSS) unless otherwise stated.
Characteristics Sym. Min. Typ.
Max. Units Test Conditions
1Frame Pulse width t
FRW
244 ns
2 Frame Pulse setup time t
FRS
10 190 ns
3 Frame Pulse hold time t
FRH
20 190 ns
4 STo delay Active to Active t
DAA
55 ns C
L
=150 pF
5 STi setup time t
STiS
20 ns
6 STi hold time t
STiH
20 ns
7 Clock period t
CLK
200 244 300 ns
8 CK Input Low t
CL
85 122 150 ns
9 CK Input High
t
CH
85 122 150 ns
10 Clock Rise/Fall Time
t
r
,t
f
10 ns
V
HM
V
LM
STi
t
FRW
t
CLK
t
CH
t
CL
t
FRS
t
STiS
t
STiH
t
FRH
Ch. 31
Bit 0
Ch. 0
Bit 7
Ch. 0
Bit 6
Ch. 31
Bit 0
Ch. 0
Bit 7
Ch. 0
Bit 6
Ch.0
Bit 5
Ch. 0
Bit 5
t
DAA
V
HM
V
L
M
V
HM
V
LM
V
HM
V
LM
FR
STo
t
r
t
f
STi

MT89L86APR1

Mfr. #:
Manufacturer:
Microchip / Microsemi
Description:
Digital Bus Switch ICs Pb Free LOW VOLTAGE MULTIRATE DIGITL SW
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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