SY89871UMITR Micrel Inc, SY89871UMITR Datasheet - Page 2

• Manufacturer Part Number: SY89871UMITR
• Manufacturer: Micrel Inc

Specifications of SY89871UMITR

• Function: Clock Divider
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Package Type: MLF
• Pin Count: 16
• Mounting: Surface Mount
• Lead Free Status / Rohs Status: Not Compliant

Micrel, Inc.
M9999-082407
[e-mail] or [phone]
PACKAGE/ORDERING INFORMATION
/RESET
PIN DESCRIPTION
TRUTH TABLE
/QB0
/QB1
QB0
QB1
Pin Number
1, 2, 3, 4
1
1
1
1
0
15, 16
7, 14
12, 9
5, 6
16-Pin MLF
10
11
13
8
1
2
3
4
16
5
15
6
S1
14
X
0
0
1
1
7
®
13
(MLF-16)
QB1, /QB1
QB0, /QB0
8
Pin Name
VREF-AC
QA, /QA
/RESET
S1, S0
IN, /IN
GND
12
11
VCC
10
VT
9
IN
VT
/IN
VREF-AC
S0
X
0
1
0
1
Pin Function
See “Truth Table.” Unused output pairs may be left floating.
Positive Power Supply: Bypass with 0.1µF™™0.01µF low ESR capacitors.
Output Reset: Internal 25ký pull-up. Logic LOW will reset the divider select. See “Truth
Table.” Input threshold is V
Applications” section.
Reference Voltage: Equal to V
For DC-coupled applications, VREF-AC is normally left floating. Maximum sink/source
current is 0.5mA. See “Input Interface Applications” section.
Input Termination Center-Tap: Each side of differential input pair terminates to this pin.
The VT pin provides a center tap to a termination network for maximum interface flexibilty.
For CML and LVDS inputs, leave this pin floating. See “Input Interface Application” section.
Ground.
Logic HIGH if left unconnected (divided by 16 mode). S0 = LSB. Input threshold is V
Differential Buffered Output Clocks: This differential output is a divided-down version of
the input frequency and has a matched output delay with Bank A. Divided by 2, 4, 8, or 16.
Differential Buffered Undivided Output Clock.
Differential Input: Internal 50ý termination resistors to VT input. See “Input Interface
Select Pins: See “Truth Table.” LVTTL/CMOS logic levels. Internal 25ký pull-up resistor.
Ordering Information
Notes:
1. Contact factory for die availability. Dice are guaranteed at T
2. Tape and Reel.
3. Pb-Free package is recommended for new designs.
Part Number
SY89871UMI
SY89871UMITR
SY89871UMG
SY89871UMGTR
Bank A Output
Input Clock
Input Clock
Input Clock
Input Clock
Input Clock
(2)
(1)
(1, 2)
2
CC
/2.
CC
Package Operating
MLF-16
MLF-16
MLF-16
MLF-16
Type
–1.4V (approx.), and used for AC-coupled applications.
Industrial
Industrial
Industrial
Industrial
Range
Pb-Free bar line indicator
Pb-Free bar line indicator
QB = LOW, /QB = HIGH
A
Bank B Outputs
Input Clock ÷16
= 25°C, DC Electricals only.
Input Clock ÷2
Input Clock ÷4
Input Clock ÷8
871U with
871U with
Package
Marking
871U
871U
Precision Edge
SY89871U
CC
Pb-Free
Pb-Free
NiPdAu
NiPdAu
Finish
Sn-Pb
Sn-Pb
Lead
/2.
®