sy89542u Micrel Semiconductor, sy89542u Datasheet - Page 2

• Manufacturer Part Number: sy89542u
• Description: Sy89542u 2.5v, 3.2gbps Dual, Differential 2 1 Lvds Multiplexer With Internal Termination
• Manufacturer: Micrel Semiconductor

Micrel, Inc.
M9999-082407
[e-mail] or [phone]
SELA
7, 9, 12, 13, 16, 18
/INA0
VTA0
PACKAGE/ORDERING INFORMATION
INA0
GND
VCC
VCC
VCC
PIN DESCRIPTION
1, 5, 8, 17, 20,
27, 25, 23, 21
10, 11, 14, 15
Pin Number
3, 31, 26, 22
4, 2, 32, 30,
24, 28, 29
6, 19
1
2
3
4
5
6
7
8
32 31 30 29 28 27 26 25
9 10 11 12 13 14 15 16
32-Pin MLF
VTA0 , VTA1,
Exposed pad
SELA, SELB
INA0, /INA0,
INA1, /INA1,
INB0, /INB0,
VTB0, VTB1
INB1, /INB1
Pin Name
QA, /QA,
QB, /QB
®
GND,
VCC
24
23
22
21
20
19
18
17
VCC
INB1
VTB 1
/INB1
VCC
SELB
GND
VCC
Pin Function
Differential Inputs: These input pairs are the differential signal inputs to the device. Inputs
accept AC- or DC-coupled signals as small as 100mV. Each pin of a pair internally
terminates to a V
state if left open. Unused differential input pairs can be terminated by connecting one input
to V
left open in this configuration. Please refer to the “Input Interface Applications” section for
more details.
Input Termination Center-Tap: Each side of the differential input pair, terminates to a V
pin. The V
maximum interface flexibility. See “Input Interface Applications” section for more details.
These single-ended TTL/CMOS-compatible inputs select the inputs to the multiplexers.
Note that these inputs are internally connected to a 25kΩ pull-up resistor and will default
to logic HIGH state if left open. Input switching threshold is V
Positive Power Supply: Bypass with 0.1µF||0.01µF low ESR capacitors. The 0.01µF
capacitor should be as close to V
Differential Outputs: This differential LVDS output pair provides a copy of the selected
input. It is a logic function of the INA0, INA1, INB0, INB1 and SELA and SELB inputs.
Please refer to the “Truth Table” for details. Unused output pairs must be terminated with
100Ω across the differential pair.
Ground: Ground pin and exposed pad must be connected to the same ground plane.
Ordering Information
Notes:
1. Contact factory for die availability. Dice are guaranteed at T
2. Tape and Reel.
3. Recommended for new designs.
CC
Part Number
SY89542UMI
SY89542UMITR
SY89542UMG
SY89542UMGTR
and the complementary input to GND through a 1kΩ resistor. The V
TA0
, V
TA1
T
pin through 50Ω. Note that these inputs will default to an indeterminate
(3)
, V
(2)
(2,3)
TB0
2
, V
Package Operating
TB1
MLF-32
MLF-32
MLF-32
MLF-32
Type
pins provide a center-tap to a termination network for
CC
(1)
pin as possible.
Industrial
Industrial
Industrial
Industrial
Range
Pb-Free bar-line indicator
Pb-Free bar-line indicator
A
SY89542U with
SY89542U with
= 25°C, DC electricals only.
CC
SY89542U
SY89542U
Package
Marking
/2.
T
Precision Edge
pin is to be
SY89542U
Pb-Free
Pb-Free
NiPdAu
NiPdAu
Finish
Sn-Pb
Sn-Pb
Lead
T
®